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annotate mercurial/wireprotoframing.py @ 53023:b12a4b9d09ce

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branching: correct merge of stable into default For unclear reason, b7afc38468bd dropped all the change to "contrib/heptapod-ci.yml". This is the same merge as b7afc38468bd, but merging heptapod-ci.yml change from stable too.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Fri, 28 Feb 2025 23:18:22 +0100
parents e627cc25b6f3
children 1a612f9ec2c4
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1 # wireprotoframing.py - unified framing protocol for wire protocol
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2 #
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3 # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 # This file contains functionality to support the unified frame-based wire
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9 # protocol. For details about the protocol, see
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10 # `hg help internals.wireprotocol`.
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11
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12 from __future__ import annotations
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13
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14 import collections
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15 import struct
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16 import typing
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17
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18 from .i18n import _
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19 from .thirdparty import attr
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20
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21 # Force pytype to use the non-vendored package
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22 if typing.TYPE_CHECKING:
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23 # noinspection PyPackageRequirements
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24 import attr
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25
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26 from . import (
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27 encoding,
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28 error,
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29 pycompat,
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30 util,
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31 wireprototypes,
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32 )
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33 from .utils import (
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34 cborutil,
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35 stringutil,
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36 )
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37
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38 FRAME_HEADER_SIZE = 8
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39 DEFAULT_MAX_FRAME_SIZE = 32768
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40
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41 STREAM_FLAG_BEGIN_STREAM = 0x01
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42 STREAM_FLAG_END_STREAM = 0x02
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43 STREAM_FLAG_ENCODING_APPLIED = 0x04
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44
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45 STREAM_FLAGS = {
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46 b'stream-begin': STREAM_FLAG_BEGIN_STREAM,
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47 b'stream-end': STREAM_FLAG_END_STREAM,
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48 b'encoded': STREAM_FLAG_ENCODING_APPLIED,
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49 }
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50
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51 FRAME_TYPE_COMMAND_REQUEST = 0x01
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52 FRAME_TYPE_COMMAND_DATA = 0x02
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53 FRAME_TYPE_COMMAND_RESPONSE = 0x03
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54 FRAME_TYPE_ERROR_RESPONSE = 0x05
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55 FRAME_TYPE_TEXT_OUTPUT = 0x06
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56 FRAME_TYPE_PROGRESS = 0x07
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57 FRAME_TYPE_SENDER_PROTOCOL_SETTINGS = 0x08
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58 FRAME_TYPE_STREAM_SETTINGS = 0x09
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59
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60 FRAME_TYPES = {
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61 b'command-request': FRAME_TYPE_COMMAND_REQUEST,
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62 b'command-data': FRAME_TYPE_COMMAND_DATA,
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63 b'command-response': FRAME_TYPE_COMMAND_RESPONSE,
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64 b'error-response': FRAME_TYPE_ERROR_RESPONSE,
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65 b'text-output': FRAME_TYPE_TEXT_OUTPUT,
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66 b'progress': FRAME_TYPE_PROGRESS,
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67 b'sender-protocol-settings': FRAME_TYPE_SENDER_PROTOCOL_SETTINGS,
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68 b'stream-settings': FRAME_TYPE_STREAM_SETTINGS,
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69 }
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70
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71 FLAG_COMMAND_REQUEST_NEW = 0x01
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72 FLAG_COMMAND_REQUEST_CONTINUATION = 0x02
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73 FLAG_COMMAND_REQUEST_MORE_FRAMES = 0x04
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74 FLAG_COMMAND_REQUEST_EXPECT_DATA = 0x08
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75
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76 FLAGS_COMMAND_REQUEST = {
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77 b'new': FLAG_COMMAND_REQUEST_NEW,
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78 b'continuation': FLAG_COMMAND_REQUEST_CONTINUATION,
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79 b'more': FLAG_COMMAND_REQUEST_MORE_FRAMES,
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80 b'have-data': FLAG_COMMAND_REQUEST_EXPECT_DATA,
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81 }
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82
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83 FLAG_COMMAND_DATA_CONTINUATION = 0x01
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84 FLAG_COMMAND_DATA_EOS = 0x02
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85
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86 FLAGS_COMMAND_DATA = {
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87 b'continuation': FLAG_COMMAND_DATA_CONTINUATION,
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88 b'eos': FLAG_COMMAND_DATA_EOS,
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89 }
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90
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91 FLAG_COMMAND_RESPONSE_CONTINUATION = 0x01
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92 FLAG_COMMAND_RESPONSE_EOS = 0x02
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93
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94 FLAGS_COMMAND_RESPONSE = {
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95 b'continuation': FLAG_COMMAND_RESPONSE_CONTINUATION,
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96 b'eos': FLAG_COMMAND_RESPONSE_EOS,
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97 }
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98
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99 FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION = 0x01
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100 FLAG_SENDER_PROTOCOL_SETTINGS_EOS = 0x02
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101
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102 FLAGS_SENDER_PROTOCOL_SETTINGS = {
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103 b'continuation': FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION,
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104 b'eos': FLAG_SENDER_PROTOCOL_SETTINGS_EOS,
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105 }
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106
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107 FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION = 0x01
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108 FLAG_STREAM_ENCODING_SETTINGS_EOS = 0x02
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109
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110 FLAGS_STREAM_ENCODING_SETTINGS = {
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111 b'continuation': FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION,
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112 b'eos': FLAG_STREAM_ENCODING_SETTINGS_EOS,
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113 }
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114
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115 # Maps frame types to their available flags.
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116 FRAME_TYPE_FLAGS = {
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117 FRAME_TYPE_COMMAND_REQUEST: FLAGS_COMMAND_REQUEST,
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118 FRAME_TYPE_COMMAND_DATA: FLAGS_COMMAND_DATA,
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119 FRAME_TYPE_COMMAND_RESPONSE: FLAGS_COMMAND_RESPONSE,
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120 FRAME_TYPE_ERROR_RESPONSE: {},
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121 FRAME_TYPE_TEXT_OUTPUT: {},
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122 FRAME_TYPE_PROGRESS: {},
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123 FRAME_TYPE_SENDER_PROTOCOL_SETTINGS: FLAGS_SENDER_PROTOCOL_SETTINGS,
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124 FRAME_TYPE_STREAM_SETTINGS: FLAGS_STREAM_ENCODING_SETTINGS,
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125 }
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126
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127 ARGUMENT_RECORD_HEADER = struct.Struct('<HH')
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128
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129
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130 def humanflags(mapping, value):
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131 """Convert a numeric flags value to a human value, using a mapping table."""
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132 namemap = {v: k for k, v in mapping.items()}
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133 flags = []
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134 val = 1
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135 while value >= val:
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136 if value & val:
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137 flags.append(namemap.get(val, b'<unknown 0x%02x>' % val))
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138 val <<= 1
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139
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140 return b'|'.join(flags)
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141
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142
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143 @attr.s(slots=True)
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144 class frameheader:
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145 """Represents the data in a frame header."""
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146
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147 length = attr.ib()
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148 requestid = attr.ib()
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149 streamid = attr.ib()
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150 streamflags = attr.ib()
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151 typeid = attr.ib()
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152 flags = attr.ib()
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153
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154
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155 @attr.s(slots=True, repr=False)
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156 class frame:
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157 """Represents a parsed frame."""
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158
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159 requestid = attr.ib()
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160 streamid = attr.ib()
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161 streamflags = attr.ib()
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162 typeid = attr.ib()
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163 flags = attr.ib()
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164 payload = attr.ib()
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165
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166 @encoding.strmethod
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167 def __repr__(self):
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168 typename = b'<unknown 0x%02x>' % self.typeid
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169 for name, value in FRAME_TYPES.items():
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170 if value == self.typeid:
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171 typename = name
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172 break
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173
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174 return (
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175 b'frame(size=%d; request=%d; stream=%d; streamflags=%s; '
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176 b'type=%s; flags=%s)'
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177 % (
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178 len(self.payload),
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179 self.requestid,
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180 self.streamid,
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181 humanflags(STREAM_FLAGS, self.streamflags),
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182 typename,
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183 humanflags(FRAME_TYPE_FLAGS.get(self.typeid, {}), self.flags),
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184 )
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185 )
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186
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187
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188 def makeframe(requestid, streamid, streamflags, typeid, flags, payload):
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189 """Assemble a frame into a byte array."""
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190 # TODO assert size of payload.
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191 frame = bytearray(FRAME_HEADER_SIZE + len(payload))
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192
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193 # 24 bits length
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194 # 16 bits request id
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195 # 8 bits stream id
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196 # 8 bits stream flags
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197 # 4 bits type
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198 # 4 bits flags
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199
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200 l = struct.pack('<I', len(payload))
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201 frame[0:3] = l[0:3]
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202 struct.pack_into('<HBB', frame, 3, requestid, streamid, streamflags)
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203 frame[7] = (typeid << 4) | flags
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204 frame[8:] = payload
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205
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206 return frame
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207
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208
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209 def makeframefromhumanstring(s):
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210 """Create a frame from a human readable string
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211
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212 Strings have the form:
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213
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214 <request-id> <stream-id> <stream-flags> <type> <flags> <payload>
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215
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216 This can be used by user-facing applications and tests for creating
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217 frames easily without having to type out a bunch of constants.
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218
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219 Request ID and stream IDs are integers.
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220
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221 Stream flags, frame type, and flags can be specified by integer or
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222 named constant.
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223
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224 Flags can be delimited by `|` to bitwise OR them together.
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225
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226 If the payload begins with ``cbor:``, the following string will be
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227 evaluated as Python literal and the resulting object will be fed into
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228 a CBOR encoder. Otherwise, the payload is interpreted as a Python
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229 byte string literal.
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230 """
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231 fields = s.split(b' ', 5)
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232 requestid, streamid, streamflags, frametype, frameflags, payload = fields
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233
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234 requestid = int(requestid)
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235 streamid = int(streamid)
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236
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237 finalstreamflags = 0
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238 for flag in streamflags.split(b'|'):
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239 if flag in STREAM_FLAGS:
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240 finalstreamflags |= STREAM_FLAGS[flag]
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241 else:
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242 finalstreamflags |= int(flag)
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243
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244 if frametype in FRAME_TYPES:
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245 frametype = FRAME_TYPES[frametype]
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246 else:
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247 frametype = int(frametype)
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248
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249 finalflags = 0
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250 validflags = FRAME_TYPE_FLAGS[frametype]
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251 for flag in frameflags.split(b'|'):
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252 if flag in validflags:
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253 finalflags |= validflags[flag]
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254 else:
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255 finalflags |= int(flag)
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256
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257 if payload.startswith(b'cbor:'):
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258 payload = b''.join(
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259 cborutil.streamencode(stringutil.evalpythonliteral(payload[5:]))
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260 )
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261
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262 else:
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263 payload = stringutil.unescapestr(payload)
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264
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265 return makeframe(
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266 requestid=requestid,
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267 streamid=streamid,
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268 streamflags=finalstreamflags,
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269 typeid=frametype,
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270 flags=finalflags,
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271 payload=payload,
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272 )
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273
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274
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diff changeset
275 def parseheader(data):
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276 """Parse a unified framing protocol frame header from a buffer.
8c3c47362934 wireproto: implement basic frame reading and processing
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diff changeset
277
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diff changeset
278 The header is expected to be in the buffer at offset 0 and the
8c3c47362934 wireproto: implement basic frame reading and processing
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diff changeset
279 buffer is expected to be large enough to hold a full header.
8c3c47362934 wireproto: implement basic frame reading and processing
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diff changeset
280 """
8c3c47362934 wireproto: implement basic frame reading and processing
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parents: 37054
diff changeset
281 # 24 bits payload length (little endian)
37288
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diff changeset
282 # 16 bits request ID
9bfcbe4f4745 wireproto: add streams to frame-based protocol
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diff changeset
283 # 8 bits stream ID
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diff changeset
284 # 8 bits stream flags
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diff changeset
285 # 4 bits frame type
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diff changeset
286 # 4 bits frame flags
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Gregory Szorc <gregory.szorc@gmail.com>
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diff changeset
287 # ... payload
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
288 framelength = data[0] + 256 * data[1] + 16384 * data[2]
43554
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
289 requestid, streamid, streamflags = struct.unpack_from('<HBB', data, 3)
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
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parents: 37287
diff changeset
290 typeflags = data[7]
37055
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diff changeset
291
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diff changeset
292 frametype = (typeflags & 0xF0) >> 4
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diff changeset
293 frameflags = typeflags & 0x0F
37055
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diff changeset
294
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diff changeset
295 return frameheader(
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parents: 40328
diff changeset
296 framelength, requestid, streamid, streamflags, frametype, frameflags
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diff changeset
297 )
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parents: 40328
diff changeset
298
37055
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diff changeset
299
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
300 def readframe(fh):
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
301 """Read a unified framing protocol frame from a file object.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
302
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
303 Returns a 3-tuple of (type, flags, payload) for the decoded frame or
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
304 None if no frame is available. May raise if a malformed frame is
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
305 seen.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
306 """
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
307 header = bytearray(FRAME_HEADER_SIZE)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
308
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
309 readcount = fh.readinto(header)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
310
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
311 if readcount == 0:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
312 return None
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
313
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
314 if readcount != FRAME_HEADER_SIZE:
43076
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parents: 40328
diff changeset
315 raise error.Abort(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
316 _(b'received incomplete frame: got %d bytes: %s')
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
317 % (readcount, header)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
318 )
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
319
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
320 h = parseheader(header)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
321
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
322 payload = fh.read(h.length)
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
323 if len(payload) != h.length:
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
324 raise error.Abort(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
325 _(b'frame length error: expected %d; got %d')
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
326 % (h.length, len(payload))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
327 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
328
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
329 return frame(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
330 h.requestid, h.streamid, h.streamflags, h.typeid, h.flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
331 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
332
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
333
43076
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parents: 40328
diff changeset
334 def createcommandframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
335 stream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
336 requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
337 cmd,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
338 args,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
339 datafh=None,
2372284d9457 formatting: blacken the codebase
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diff changeset
340 maxframesize=DEFAULT_MAX_FRAME_SIZE,
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
341 redirect=None,
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parents: 40328
diff changeset
342 ):
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
343 """Create frames necessary to transmit a request to run a command.
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
344
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
345 This is a generator of bytearrays. Each item represents a frame
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
346 ready to be sent over the wire to a peer.
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
347 """
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
348 data = {b'name': cmd}
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
349 if args:
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
350 data[b'args'] = args
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
351
40025
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
352 if redirect:
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
353 data[b'redirect'] = redirect
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
354
39465
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
355 data = b''.join(cborutil.streamencode(data))
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
356
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
357 offset = 0
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
358
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
359 while True:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
360 flags = 0
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
361
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
362 # Must set new or continuation flag.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
363 if not offset:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
364 flags |= FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
365 else:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
366 flags |= FLAG_COMMAND_REQUEST_CONTINUATION
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
367
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
368 # Data frames is set on all frames.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
369 if datafh:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
370 flags |= FLAG_COMMAND_REQUEST_EXPECT_DATA
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
371
43076
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Augie Fackler <augie@google.com>
parents: 40328
diff changeset
372 payload = data[offset : offset + maxframesize]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
373 offset += len(payload)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
374
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
375 if len(payload) == maxframesize and offset < len(data):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
376 flags |= FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
377
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
378 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
379 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
380 typeid=FRAME_TYPE_COMMAND_REQUEST,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
381 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
382 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
383 )
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
384
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
385 if not (flags & FLAG_COMMAND_REQUEST_MORE_FRAMES):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
386 break
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
387
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
388 if datafh:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
389 while True:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
390 data = datafh.read(DEFAULT_MAX_FRAME_SIZE)
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
391
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
392 done = False
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
393 if len(data) == DEFAULT_MAX_FRAME_SIZE:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
394 flags = FLAG_COMMAND_DATA_CONTINUATION
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
395 else:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
396 flags = FLAG_COMMAND_DATA_EOS
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
397 assert datafh.read(1) == b''
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
398 done = True
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
399
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
400 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
401 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
402 typeid=FRAME_TYPE_COMMAND_DATA,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
403 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
404 payload=data,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
405 )
37054
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
406
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
407 if done:
40206e227412 wireproto: define and implement protocol for issuing requests
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
408 break
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
409
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
410
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
411 def createcommandresponseokframe(stream, requestid):
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
412 overall = b''.join(cborutil.streamencode({b'status': b'ok'}))
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
413
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
414 if stream.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
415 overall = stream.encode(overall)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
416 encoded = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
417
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
418 if not overall:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
419 return None
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
420 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
421 encoded = False
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
422
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
423 return stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
424 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
425 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
426 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
427 payload=overall,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
428 encoded=encoded,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
429 )
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
430
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
431
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
432 def createcommandresponseeosframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
433 stream, requestid, maxframesize=DEFAULT_MAX_FRAME_SIZE
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
434 ):
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
435 """Create an empty payload frame representing command end-of-stream."""
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
436 payload = stream.flush()
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
437
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
438 offset = 0
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
439 while True:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
440 chunk = payload[offset : offset + maxframesize]
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
441 offset += len(chunk)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
442
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
443 done = offset == len(payload)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
444
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
445 if done:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
446 flags = FLAG_COMMAND_RESPONSE_EOS
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
447 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
448 flags = FLAG_COMMAND_RESPONSE_CONTINUATION
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
449
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
450 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
451 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
452 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
453 flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
454 payload=chunk,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
455 encoded=payload != b'',
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
456 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
457
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
458 if done:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
459 break
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
460
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
461
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
462 def createalternatelocationresponseframe(stream, requestid, location):
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
463 data = {
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
464 b'status': b'redirect',
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
465 b'location': {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
466 b'url': location.url,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
467 b'mediatype': location.mediatype,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
468 },
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
469 }
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
470
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
471 for a in (
43554
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
472 'size',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
473 'fullhashes',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
474 'fullhashseed',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
475 'serverdercerts',
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
476 'servercadercerts',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
477 ):
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
478 value = getattr(location, a)
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
479 if value is not None:
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
480 # pytype: disable=unsupported-operands
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
481 data[b'location'][pycompat.bytestr(a)] = value
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
482 # pytype: enable=unsupported-operands
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
483
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
484 payload = b''.join(cborutil.streamencode(data))
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
485
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
486 if stream.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
487 payload = stream.encode(payload)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
488 encoded = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
489 else:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
490 encoded = False
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
491
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
492 return stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
493 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
494 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
495 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
496 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
497 encoded=encoded,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
498 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
499
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
500
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
501 def createcommanderrorresponse(stream, requestid, message, args=None):
39503
43d92d68ac88 wireprotov2peer: properly format errors
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39465
diff changeset
502 # TODO should this be using a list of {'msg': ..., 'args': {}} so atom
43d92d68ac88 wireprotov2peer: properly format errors
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39465
diff changeset
503 # formatting works consistently?
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
504 m = {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
505 b'status': b'error',
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
506 b'error': {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
507 b'message': message,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
508 },
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
509 }
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
510
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
511 if args:
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
512 m[b'error'][b'args'] = args # pytype: disable=unsupported-operands
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
513
39465
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
514 overall = b''.join(cborutil.streamencode(m))
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
515
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
516 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
517 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
518 typeid=FRAME_TYPE_COMMAND_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
519 flags=FLAG_COMMAND_RESPONSE_EOS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
520 payload=overall,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
521 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
522
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
523
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
524 def createerrorframe(stream, requestid, msg, errtype):
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
525 # TODO properly handle frame size limits.
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
526 assert len(msg) <= DEFAULT_MAX_FRAME_SIZE
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
527
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
528 payload = b''.join(
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
529 cborutil.streamencode(
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
530 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
531 b'type': errtype,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
532 b'message': [{b'msg': msg}],
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
533 }
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
534 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
535 )
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
536
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
537 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
538 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
539 typeid=FRAME_TYPE_ERROR_RESPONSE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
540 flags=0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
541 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
542 )
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
543
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
544
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
545 def createtextoutputframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
546 stream, requestid, atoms, maxframesize=DEFAULT_MAX_FRAME_SIZE
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
547 ):
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
548 """Create a text output frame to render text to people.
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
549
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
550 ``atoms`` is a 3-tuple of (formatting string, args, labels).
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
551
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
552 The formatting string contains ``%s`` tokens to be replaced by the
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
553 corresponding indexed entry in ``args``. ``labels`` is an iterable of
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
554 formatters to be applied at rendering time. In terms of the ``ui``
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
555 class, each atom corresponds to a ``ui.write()``.
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
556 """
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
557 atomdicts = []
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
558
51762
ca7bde5dbafb black: format the codebase with 23.3.0
Rapha?l Gom?s <rgomes@octobus.net>
parents: 51759
diff changeset
559 for formatting, args, labels in atoms:
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
560 # TODO look for localstr, other types here?
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
561
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
562 if not isinstance(formatting, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
563 raise ValueError(b'must use bytes formatting strings')
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
564 for arg in args:
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
565 if not isinstance(arg, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
566 raise ValueError(b'must use bytes for arguments')
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
567 for label in labels:
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
568 if not isinstance(label, bytes):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
569 raise ValueError(b'must use bytes for labels')
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
570
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
571 # Formatting string must be ASCII.
43554
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
572 formatting = formatting.decode('ascii', 'replace').encode('ascii')
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
573
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
574 # Arguments must be UTF-8.
43554
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
575 args = [a.decode('utf-8', 'replace').encode('utf-8') for a in args]
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
576
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
577 # Labels must be ASCII.
43554
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43117
diff changeset
578 labels = [l.decode('ascii', 'strict').encode('ascii') for l in labels]
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
579
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
580 atom = {b'msg': formatting}
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
581 if args:
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
582 atom[b'args'] = args
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
583 if labels:
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
584 atom[b'labels'] = labels
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
585
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
586 atomdicts.append(atom)
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
587
39465
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
588 payload = b''.join(cborutil.streamencode(atomdicts))
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
589
37319
36d17f37db91 wireproto: convert human output frames to CBOR
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37299
diff changeset
590 if len(payload) > maxframesize:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
591 raise ValueError(b'cannot encode data in a single frame')
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
592
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
593 yield stream.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
594 requestid=requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
595 typeid=FRAME_TYPE_TEXT_OUTPUT,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
596 flags=0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
597 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
598 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
599
37287
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
600
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
601 class bufferingcommandresponseemitter:
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
602 """Helper object to emit command response frames intelligently.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
603
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
604 Raw command response data is likely emitted in chunks much smaller
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
605 than what can fit in a single frame. This class exists to buffer
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
606 chunks until enough data is available to fit in a single frame.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
607
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
608 TODO we'll need something like this when compression is supported.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
609 So it might make sense to implement this functionality at the stream
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
610 level.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
611 """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
612
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
613 def __init__(self, stream, requestid, maxframesize=DEFAULT_MAX_FRAME_SIZE):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
614 self._stream = stream
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
615 self._requestid = requestid
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
616 self._maxsize = maxframesize
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
617 self._chunks = []
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
618 self._chunkssize = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
619
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
620 def send(self, data):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
621 """Send new data for emission.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
622
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
623 Is a generator of new frames that were derived from the new input.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
624
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
625 If the special input ``None`` is received, flushes all buffered
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
626 data to frames.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
627 """
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
628
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
629 if data is None:
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
630 yield from self._flush()
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
631 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
632
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
633 data = self._stream.encode(data)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
634
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
635 # There is a ton of potential to do more complicated things here.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
636 # Our immediate goal is to coalesce small chunks into big frames,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
637 # not achieve the fewest number of frames possible. So we go with
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
638 # a simple implementation:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
639 #
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
640 # * If a chunk is too large for a frame, we flush and emit frames
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
641 # for the new chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
642 # * If a chunk can be buffered without total buffered size limits
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
643 # being exceeded, we do that.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
644 # * If a chunk causes us to go over our buffering limit, we flush
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
645 # and then buffer the new chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
646
40136
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
647 if not data:
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
648 return
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
649
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
650 if len(data) > self._maxsize:
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
651 yield from self._flush()
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
652
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
653 # Now emit frames for the big chunk.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
654 offset = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
655 while True:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
656 chunk = data[offset : offset + self._maxsize]
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
657 offset += len(chunk)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
658
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
659 yield self._stream.makeframe(
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
660 self._requestid,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
661 typeid=FRAME_TYPE_COMMAND_RESPONSE,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
662 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
663 payload=chunk,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
664 encoded=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
665 )
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
666
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
667 if offset == len(data):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
668 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
669
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
670 # If we don't have enough to constitute a full frame, buffer and
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
671 # return.
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
672 if len(data) + self._chunkssize < self._maxsize:
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
673 self._chunks.append(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
674 self._chunkssize += len(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
675 return
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
676
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
677 # Else flush what we have and buffer the new chunk. We could do
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
678 # something more intelligent here, like break the chunk. Let's
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
679 # keep things simple for now.
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
680 yield from self._flush()
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
681
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
682 self._chunks.append(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
683 self._chunkssize = len(data)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
684
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
685 def _flush(self):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
686 payload = b''.join(self._chunks)
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
687 assert len(payload) <= self._maxsize
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
688
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
689 self._chunks[:] = []
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
690 self._chunkssize = 0
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
691
40136
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
692 if not payload:
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
693 return
3a6d6c54bd81 wireprotov2: don't emit empty frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40135
diff changeset
694
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
695 yield self._stream.makeframe(
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
696 self._requestid,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
697 typeid=FRAME_TYPE_COMMAND_RESPONSE,
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
698 flags=FLAG_COMMAND_RESPONSE_CONTINUATION,
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
699 payload=payload,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
700 encoded=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
701 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
702
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
703
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
704 # TODO consider defining encoders/decoders using the util.compressionengine
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
705 # mechanism.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
706
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
707
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
708 class identityencoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
709 """Encoder for the "identity" stream encoding profile."""
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
710
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
711 def __init__(self, ui):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
712 pass
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
713
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
714 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
715 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
716
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
717 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
718 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
719
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
720 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
721 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
722
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
723
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
724 class identitydecoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
725 """Decoder for the "identity" stream encoding profile."""
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
726
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
727 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
728 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
729 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
730 _(b'identity decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
731 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
732
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
733 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
734 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
735
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
736
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
737 class zlibencoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
738 def __init__(self, ui):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
739 import zlib
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
740
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
741 self._zlib = zlib
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
742 self._compressor = zlib.compressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
743
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
744 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
745 return self._compressor.compress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
746
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
747 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
748 # Z_SYNC_FLUSH doesn't reset compression context, which is
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
749 # what we want.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
750 return self._compressor.flush(self._zlib.Z_SYNC_FLUSH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
751
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
752 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
753 res = self._compressor.flush(self._zlib.Z_FINISH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
754 self._compressor = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
755 return res
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
756
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
757
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
758 class zlibdecoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
759 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
760 import zlib
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
761
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
762 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
763 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
764 _(b'zlib decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
765 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
766
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
767 self._decompressor = zlib.decompressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
768
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
769 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
770 return self._decompressor.decompress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
771
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
772
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
773 class zstdbaseencoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
774 def __init__(self, level):
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
775 from . import zstd # pytype: disable=import-error
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
776
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
777 self._zstd = zstd
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
778 cctx = zstd.ZstdCompressor(level=level)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
779 self._compressor = cctx.compressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
780
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
781 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
782 return self._compressor.compress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
783
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
784 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
785 # COMPRESSOBJ_FLUSH_BLOCK flushes all data previously fed into the
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
786 # compressor and allows a decompressor to access all encoded data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
787 # up to this point.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
788 return self._compressor.flush(self._zstd.COMPRESSOBJ_FLUSH_BLOCK)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
789
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
790 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
791 res = self._compressor.flush(self._zstd.COMPRESSOBJ_FLUSH_FINISH)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
792 self._compressor = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
793 return res
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
794
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
795
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
796 class zstd8mbencoder(zstdbaseencoder):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
797 def __init__(self, ui):
52668
5cc8deb96b48 pyupgrade: modernize calls to superclass methods
Matt Harbison <matt_harbison@yahoo.com>
parents: 52129
diff changeset
798 super().__init__(3)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
799
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
800
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
801 class zstdbasedecoder:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
802 def __init__(self, maxwindowsize):
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
803 from . import zstd # pytype: disable=import-error
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
804
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
805 dctx = zstd.ZstdDecompressor(max_window_size=maxwindowsize)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
806 self._decompressor = dctx.decompressobj()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
807
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
808 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
809 return self._decompressor.decompress(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
810
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
811
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
812 class zstd8mbdecoder(zstdbasedecoder):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
813 def __init__(self, ui, extraobjs):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
814 if extraobjs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
815 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
816 _(b'zstd8mb decoder received unexpected additional values')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
817 )
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
818
52668
5cc8deb96b48 pyupgrade: modernize calls to superclass methods
Matt Harbison <matt_harbison@yahoo.com>
parents: 52129
diff changeset
819 super().__init__(maxwindowsize=8 * 1048576)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
820
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
821
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
822 # We lazily populate this to avoid excessive module imports when importing
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
823 # this module.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
824 STREAM_ENCODERS = {}
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
825 STREAM_ENCODERS_ORDER = []
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
826
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
827
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
828 def populatestreamencoders():
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
829 if STREAM_ENCODERS:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
830 return
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
831
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
832 try:
52129
0c260e7158e0 typing: suppress bogus pytype errors in `mercurial/wireprotoframing.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 51901
diff changeset
833 from . import zstd # pytype: disable=import-error
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
834
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
835 zstd.__version__
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
836 except ImportError:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
837 zstd = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
838
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
839 # zstandard is fastest and is preferred.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
840 if zstd:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
841 STREAM_ENCODERS[b'zstd-8mb'] = (zstd8mbencoder, zstd8mbdecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
842 STREAM_ENCODERS_ORDER.append(b'zstd-8mb')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
843
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
844 STREAM_ENCODERS[b'zlib'] = (zlibencoder, zlibdecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
845 STREAM_ENCODERS_ORDER.append(b'zlib')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
846
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
847 STREAM_ENCODERS[b'identity'] = (identityencoder, identitydecoder)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
848 STREAM_ENCODERS_ORDER.append(b'identity')
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
849
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
850
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
851 class stream:
37287
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
852 """Represents a logical unidirectional series of frames."""
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
853
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
854 def __init__(self, streamid, active=False):
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
855 self.streamid = streamid
37655
b9502b5f2066 wireprotoframing: use value passed into function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37544
diff changeset
856 self._active = active
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
857
37287
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
858 def makeframe(self, requestid, typeid, flags, payload):
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
859 """Create a frame to be sent out over this stream.
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
860
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
861 Only returns the frame instance. Does not actually send it.
3ed344546d9e wireproto: start to associate frame generation with a stream
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37087
diff changeset
862 """
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
863 streamflags = 0
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
864 if not self._active:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
865 streamflags |= STREAM_FLAG_BEGIN_STREAM
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
866 self._active = True
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
867
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
868 return makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
869 requestid, self.streamid, streamflags, typeid, flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
870 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
871
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
872
40131
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
873 class inputstream(stream):
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
874 """Represents a stream used for receiving data."""
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
875
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
876 def __init__(self, streamid, active=False):
52668
5cc8deb96b48 pyupgrade: modernize calls to superclass methods
Matt Harbison <matt_harbison@yahoo.com>
parents: 52129
diff changeset
877 super().__init__(streamid, active=active)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
878 self._decoder = None
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
879
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
880 def setdecoder(self, ui, name, extraobjs):
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
881 """Set the decoder for this stream.
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
882
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
883 Receives the stream profile name and any additional CBOR objects
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
884 decoded from the stream encoding settings frame payloads.
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
885 """
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
886 if name not in STREAM_ENCODERS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
887 raise error.Abort(_(b'unknown stream decoder: %s') % name)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
888
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
889 self._decoder = STREAM_ENCODERS[name][1](ui, extraobjs)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
890
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
891 def decode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
892 # Default is identity decoder. We don't bother instantiating one
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
893 # because it is trivial.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
894 if not self._decoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
895 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
896
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
897 return self._decoder.decode(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
898
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
899 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
900 if not self._decoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
901 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
902
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
903 return self._decoder.flush()
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
904
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
905
40131
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
906 class outputstream(stream):
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
907 """Represents a stream used for sending data."""
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
908
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
909 def __init__(self, streamid, active=False):
52668
5cc8deb96b48 pyupgrade: modernize calls to superclass methods
Matt Harbison <matt_harbison@yahoo.com>
parents: 52129
diff changeset
910 super().__init__(streamid, active=active)
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
911 self.streamsettingssent = False
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
912 self._encoder = None
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
913 self._encodername = None
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
914
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
915 def setencoder(self, ui, name):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
916 """Set the encoder for this stream.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
917
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
918 Receives the stream profile name.
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
919 """
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
920 if name not in STREAM_ENCODERS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
921 raise error.Abort(_(b'unknown stream encoder: %s') % name)
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
922
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
923 self._encoder = STREAM_ENCODERS[name][0](ui)
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
924 self._encodername = name
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
925
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
926 def encode(self, data):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
927 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
928 return data
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
929
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
930 return self._encoder.encode(data)
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
931
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
932 def flush(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
933 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
934 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
935
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
936 return self._encoder.flush()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
937
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
938 def finish(self):
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
939 if not self._encoder:
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
940 return b''
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
941
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
942 self._encoder.finish()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
943
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
944 def makeframe(self, requestid, typeid, flags, payload, encoded=False):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
945 """Create a frame to be sent out over this stream.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
946
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
947 Only returns the frame instance. Does not actually send it.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
948 """
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
949 streamflags = 0
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
950 if not self._active:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
951 streamflags |= STREAM_FLAG_BEGIN_STREAM
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
952 self._active = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
953
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
954 if encoded:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
955 if not self.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
956 raise error.ProgrammingError(
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
957 b'attempting to send encoded frame without sending stream '
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
958 b'settings'
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
959 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
960
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
961 streamflags |= STREAM_FLAG_ENCODING_APPLIED
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
962
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
963 if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
964 typeid == FRAME_TYPE_STREAM_SETTINGS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
965 and flags & FLAG_STREAM_ENCODING_SETTINGS_EOS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
966 ):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
967 self.streamsettingssent = True
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
968
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
969 return makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
970 requestid, self.streamid, streamflags, typeid, flags, payload
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
971 )
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
972
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
973 def makestreamsettingsframe(self, requestid):
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
974 """Create a stream settings frame for this stream.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
975
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
976 Returns frame data or None if no stream settings frame is needed or has
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
977 already been sent.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
978 """
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
979 if not self._encoder or self.streamsettingssent:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
980 return None
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
981
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
982 payload = b''.join(cborutil.streamencode(self._encodername))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
983 return self.makeframe(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
984 requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
985 FRAME_TYPE_STREAM_SETTINGS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
986 FLAG_STREAM_ENCODING_SETTINGS_EOS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
987 payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
988 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
989
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
990
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
991 def ensureserverstream(stream):
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
992 if stream.streamid % 2:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
993 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
994 b'server should only write to even '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
995 b'numbered streams; %d is not even' % stream.streamid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
996 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
997
37063
0a6c5cc09a88 wireproto: define human output side channel frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37061
diff changeset
998
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
999 DEFAULT_PROTOCOL_SETTINGS = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1000 b'contentencodings': [b'identity'],
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1001 }
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1002
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1003
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
1004 class serverreactor:
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1005 """Holds state of a server handling frame-based protocol requests.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1006
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1007 This class is the "brain" of the unified frame-based protocol server
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1008 component. While the protocol is stateless from the perspective of
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1009 requests/commands, something needs to track which frames have been
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1010 received, what frames to expect, etc. This class is that thing.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1011
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1012 Instances are modeled as a state machine of sorts. Instances are also
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1013 reactionary to external events. The point of this class is to encapsulate
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1014 the state of the connection and the exchange of frames, not to perform
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1015 work. Instead, callers tell this class when something occurs, like a
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1016 frame arriving. If that activity is worthy of a follow-up action (say
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1017 *run a command*), the return value of that handler will say so.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1018
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1019 I/O and CPU intensive operations are purposefully delegated outside of
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1020 this class.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1021
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1022 Consumers are expected to tell instances when events occur. They do so by
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1023 calling the various ``on*`` methods. These methods return a 2-tuple
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1024 describing any follow-up action(s) to take. The first element is the
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1025 name of an action to perform. The second is a data structure (usually
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1026 a dict) specific to that action that contains more information. e.g.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1027 if the server wants to send frames back to the client, the data structure
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1028 will contain a reference to those frames.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1029
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1030 Valid actions that consumers can be instructed to take are:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1031
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1032 sendframes
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1033 Indicates that frames should be sent to the client. The ``framegen``
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1034 key contains a generator of frames that should be sent. The server
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1035 assumes that all frames are sent to the client.
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1036
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1037 error
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1038 Indicates that an error occurred. Consumer should probably abort.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1039
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1040 runcommand
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1041 Indicates that the consumer should run a wire protocol command. Details
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1042 of the command to run are given in the data structure.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1043
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1044 wantframe
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1045 Indicates that nothing of interest happened and the server is waiting on
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1046 more frames from the client before anything interesting can be done.
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1047
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1048 noop
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1049 Indicates no additional action is required.
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1050
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1051 Known Issues
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1052 ------------
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1053
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1054 There are no limits to the number of partially received commands or their
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1055 size. A malicious client could stream command request data and exhaust the
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1056 server's memory.
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1057
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1058 Partially received commands are not acted upon when end of input is
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1059 reached. Should the server error if it receives a partial request?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1060 Should the client send a message to abort a partially transmitted request
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1061 to facilitate graceful shutdown?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1062
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1063 Active requests that haven't been responded to aren't tracked. This means
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1064 that if we receive a command and instruct its dispatch, another command
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1065 with its request ID can come in over the wire and there will be a race
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1066 between who responds to what.
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1067 """
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1068
40130
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1069 def __init__(self, ui, deferoutput=False):
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1070 """Construct a new server reactor.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1071
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1072 ``deferoutput`` can be used to indicate that no output frames should be
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1073 instructed to be sent until input has been exhausted. In this mode,
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1074 events that would normally generate output frames (such as a command
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1075 response being ready) will instead defer instructing the consumer to
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1076 send those frames. This is useful for half-duplex transports where the
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1077 sender cannot receive until all data has been transmitted.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1078 """
40130
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1079 self._ui = ui
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1080 self._deferoutput = deferoutput
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1081 self._state = b'initial'
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1082 self._nextoutgoingstreamid = 2
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1083 self._bufferedframegens = []
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1084 # stream id -> stream instance for all active streams from the client.
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1085 self._incomingstreams = {}
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1086 self._outgoingstreams = {}
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1087 # request id -> dict of commands that are actively being received.
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1088 self._receivingcommands = {}
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1089 # Request IDs that have been received and are actively being processed.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1090 # Once all output for a request has been sent, it is removed from this
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1091 # set.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1092 self._activecommands = set()
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1093
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1094 self._protocolsettingsdecoder = None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1095
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1096 # Sender protocol settings are optional. Set implied default values.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1097 self._sendersettings = dict(DEFAULT_PROTOCOL_SETTINGS)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1098
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1099 populatestreamencoders()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1100
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1101 def onframerecv(self, frame):
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1102 """Process a frame that has been received off the wire.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1103
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1104 Returns a dict with an ``action`` key that details what action,
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1105 if any, the consumer should take next.
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1106 """
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1107 if not frame.streamid % 2:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1108 self._state = b'errored'
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1109 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1110 _(b'received frame with even numbered stream ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1111 % frame.streamid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1112 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1113
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1114 if frame.streamid not in self._incomingstreams:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1115 if not frame.streamflags & STREAM_FLAG_BEGIN_STREAM:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1116 self._state = b'errored'
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1117 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1118 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1119 b'received frame on unknown inactive stream without '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1120 b'beginning of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1121 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1122 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1123
40131
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1124 self._incomingstreams[frame.streamid] = inputstream(frame.streamid)
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1125
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1126 if frame.streamflags & STREAM_FLAG_ENCODING_APPLIED:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1127 # TODO handle decoding frames
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1128 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1129 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1130 b'support for decoding stream payloads not yet implemented'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1131 )
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1132
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1133 if frame.streamflags & STREAM_FLAG_END_STREAM:
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1134 del self._incomingstreams[frame.streamid]
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1135
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1136 handlers = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1137 b'initial': self._onframeinitial,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1138 b'protocol-settings-receiving': self._onframeprotocolsettings,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1139 b'idle': self._onframeidle,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1140 b'command-receiving': self._onframecommandreceiving,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1141 b'errored': self._onframeerrored,
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1142 }
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1143
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1144 meth = handlers.get(self._state)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1145 if not meth:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1146 raise error.ProgrammingError(b'unhandled state: %s' % self._state)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1147
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1148 return meth(frame)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1149
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1150 def oncommandresponsereadyobjects(self, stream, requestid, objs):
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1151 """Signal that objects are ready to be sent to the client.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1152
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1153 ``objs`` is an iterable of objects (typically a generator) that will
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1154 be encoded via CBOR and added to frames, which will be sent to the
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1155 client.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1156 """
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1157 ensureserverstream(stream)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1158
40135
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1159 # A more robust solution would be to check for objs.{next,__next__}.
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1160 if isinstance(objs, list):
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1161 objs = iter(objs)
966b5f7fd30b wireprotov2: remove functions for creating response frames from bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40133
diff changeset
1162
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1163 # We need to take care over exception handling. Uncaught exceptions
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1164 # when generating frames could lead to premature end of the frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1165 # stream and the possibility of the server or client process getting
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1166 # in a bad state.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1167 #
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1168 # Keep in mind that if ``objs`` is a generator, advancing it could
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1169 # raise exceptions that originated in e.g. wire protocol command
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1170 # functions. That is why we differentiate between exceptions raised
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1171 # when iterating versus other exceptions that occur.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1172 #
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1173 # In all cases, when the function finishes, the request is fully
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1174 # handled and no new frames for it should be seen.
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1175
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1176 def sendframes():
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1177 emitted = False
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1178 alternatelocationsent = False
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1179 emitter = bufferingcommandresponseemitter(stream, requestid)
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1180 while True:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1181 try:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1182 o = next(objs)
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1183 except StopIteration:
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1184 for frame in emitter.send(None):
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1185 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1186
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1187 if emitted:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1188 for frame in createcommandresponseeosframes(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1189 stream, requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1190 ):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1191 yield frame
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1192 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1193
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1194 except error.WireprotoCommandError as e:
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1195 for frame in createcommanderrorresponse(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1196 stream, requestid, e.message, e.messageargs
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1197 ):
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1198 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1199 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1200
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1201 except Exception as e:
39843
bce1c1af7518 py3: cast exception to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39576
diff changeset
1202 for frame in createerrorframe(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1203 stream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1204 requestid,
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1205 b'%s' % stringutil.forcebytestr(e),
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1206 errtype=b'server',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1207 ):
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1208 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1209
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1210 break
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1211
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1212 try:
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1213 # Alternate location responses can only be the first and
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1214 # only object in the output stream.
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1215 if isinstance(o, wireprototypes.alternatelocationresponse):
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1216 if emitted:
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1217 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1218 b'alternatelocationresponse seen after initial '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1219 b'output object'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1220 )
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1221
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1222 frame = stream.makestreamsettingsframe(requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1223 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1224 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1225
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1226 yield createalternatelocationresponseframe(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1227 stream, requestid, o
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1228 )
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1229
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1230 alternatelocationsent = True
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1231 emitted = True
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1232 continue
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1233
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1234 if alternatelocationsent:
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1235 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1236 b'object follows alternatelocationresponse'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1237 )
40026
b099e6032f38 wireprotov2: server support for sending content redirects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40025
diff changeset
1238
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1239 if not emitted:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1240 # Frame is optional.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1241 frame = stream.makestreamsettingsframe(requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1242 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1243 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1244
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1245 # May be None if empty frame (due to encoding).
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1246 frame = createcommandresponseokframe(stream, requestid)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1247 if frame:
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1248 yield frame
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1249
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1250 emitted = True
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1251
40021
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1252 # Objects emitted by command functions can be serializable
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1253 # data structures or special types.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1254 # TODO consider extracting the content normalization to a
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1255 # standalone function, as it may be useful for e.g. cachers.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1256
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1257 # A pre-encoded object is sent directly to the emitter.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1258 if isinstance(o, wireprototypes.encodedresponse):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1259 for frame in emitter.send(o.data):
39576
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1260 yield frame
84bf6ded9317 wireprotoframing: buffer emitted data to reduce frame count
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39575
diff changeset
1261
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1262 elif isinstance(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1263 o, wireprototypes.indefinitebytestringresponse
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1264 ):
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1265 for chunk in cborutil.streamencodebytestringfromiter(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1266 o.chunks
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1267 ):
40328
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1268 for frame in emitter.send(chunk):
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1269 yield frame
2c55716f8a1c wireprotov2: add response type that serializes to indefinite length bytestring
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40138
diff changeset
1270
40021
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1271 # A regular object is CBOR encoded.
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1272 else:
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1273 for chunk in cborutil.streamencode(o):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1274 for frame in emitter.send(chunk):
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1275 yield frame
ed919b90acda wireprotov2: define type to represent pre-encoded object
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39843
diff changeset
1276
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1277 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1278 for frame in createerrorframe(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1279 stream, requestid, b'%s' % e, errtype=b'server'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1280 ):
39575
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1281 yield frame
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1282
07b58266bce3 wireprotov2: implement commands as a generator of objects
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39503
diff changeset
1283 break
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1284
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1285 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1286
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1287 return self._handlesendframes(sendframes())
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1288
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1289 def oninputeof(self):
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1290 """Signals that end of input has been received.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1291
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1292 No more frames will be received. All pending activity should be
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1293 completed.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1294 """
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1295 # TODO should we do anything about in-flight commands?
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1296
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1297 if not self._deferoutput or not self._bufferedframegens:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1298 return b'noop', {}
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1299
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1300 # If we buffered all our responses, emit those.
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1301 def makegen():
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1302 for gen in self._bufferedframegens:
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1303 yield from gen
37059
861e9d37e56e wireproto: buffer output frames when in half duplex mode
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37058
diff changeset
1304
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1305 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1306 b'framegen': makegen(),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1307 }
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1308
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1309 def _handlesendframes(self, framegen):
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1310 if self._deferoutput:
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1311 self._bufferedframegens.append(framegen)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1312 return b'noop', {}
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1313 else:
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1314 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1315 b'framegen': framegen,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1316 }
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1317
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
1318 def onservererror(self, stream, requestid, msg):
37288
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1319 ensureserverstream(stream)
9bfcbe4f4745 wireproto: add streams to frame-based protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37287
diff changeset
1320
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1321 def sendframes():
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1322 yield from createerrorframe(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1323 stream, requestid, msg, errtype=b'server'
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1324 )
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1325
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1326 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1327
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1328 return self._handlesendframes(sendframes())
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1329
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1330 def oncommanderror(self, stream, requestid, message, args=None):
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1331 """Called when a command encountered an error before sending output."""
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1332 ensureserverstream(stream)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1333
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1334 def sendframes():
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1335 yield from createcommanderrorresponse(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1336 stream, requestid, message, args
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1337 )
37728
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1338
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1339 self._activecommands.remove(requestid)
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1340
564a3eec6e63 wireprotov2: add support for more response types
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37726
diff changeset
1341 return self._handlesendframes(sendframes())
37058
61393f888dfe wireproto: define and implement responses in framing protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37055
diff changeset
1342
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1343 def makeoutputstream(self):
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1344 """Create a stream to be used for sending data to the client.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1345
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1346 If this is called before protocol settings frames are received, we
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1347 don't know what stream encodings are supported by the client and
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1348 we will default to identity.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1349 """
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1350 streamid = self._nextoutgoingstreamid
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1351 self._nextoutgoingstreamid += 2
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1352
40131
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1353 s = outputstream(streamid)
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1354 self._outgoingstreams[streamid] = s
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1355
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1356 # Always use the *server's* preferred encoder over the client's,
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1357 # as servers have more to lose from sub-optimal encoders being used.
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1358 for name in STREAM_ENCODERS_ORDER:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1359 if name in self._sendersettings[b'contentencodings']:
40138
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1360 s.setencoder(self._ui, name)
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1361 break
b5bf3dd6ec5b wireprotov2: send content encoded frames from server
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40136
diff changeset
1362
37289
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1363 return s
5fadc63ac99f wireproto: explicit API to create outgoing streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37288
diff changeset
1364
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1365 def _makeerrorresult(self, msg):
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1366 return b'error', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1367 b'message': msg,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1368 }
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1369
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1370 def _makeruncommandresult(self, requestid):
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1371 entry = self._receivingcommands[requestid]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1372
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1373 if not entry[b'requestdone']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1374 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1375 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1376 b'should not be called without requestdone set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1377 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1378
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1379 del self._receivingcommands[requestid]
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1380
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1381 if self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1382 self._state = b'command-receiving'
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1383 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1384 self._state = b'idle'
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1385
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1386 # Decode the payloads as CBOR.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1387 entry[b'payload'].seek(0)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1388 request = cborutil.decodeall(entry[b'payload'].getvalue())[0]
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1389
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1390 if b'name' not in request:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1391 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1392 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1393 _(b'command request missing "name" field')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1394 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1395
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1396 if b'args' not in request:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1397 request[b'args'] = {}
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1398
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1399 assert requestid not in self._activecommands
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1400 self._activecommands.add(requestid)
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1401
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1402 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1403 b'runcommand',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1404 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1405 b'requestid': requestid,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1406 b'command': request[b'name'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1407 b'args': request[b'args'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1408 b'redirect': request.get(b'redirect'),
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1409 b'data': entry[b'data'].getvalue() if entry[b'data'] else None,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1410 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1411 )
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1412
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1413 def _makewantframeresult(self):
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1414 return b'wantframe', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1415 b'state': self._state,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1416 }
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1417
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1418 def _validatecommandrequestframe(self, frame):
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1419 new = frame.flags & FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1420 continuation = frame.flags & FLAG_COMMAND_REQUEST_CONTINUATION
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1421
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1422 if new and continuation:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1423 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1424 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1425 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1426 b'received command request frame with both new and '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1427 b'continuation flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1428 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1429 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1430
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1431 if not new and not continuation:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1432 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1433 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1434 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1435 b'received command request frame with neither new nor '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1436 b'continuation flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1437 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1438 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1439
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1440 def _onframeinitial(self, frame):
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1441 # Called when we receive a frame when in the "initial" state.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1442 if frame.typeid == FRAME_TYPE_SENDER_PROTOCOL_SETTINGS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1443 self._state = b'protocol-settings-receiving'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1444 self._protocolsettingsdecoder = cborutil.bufferingdecoder()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1445 return self._onframeprotocolsettings(frame)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1446
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1447 elif frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1448 self._state = b'idle'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1449 return self._onframeidle(frame)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1450
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1451 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1452 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1453 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1454 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1455 b'expected sender protocol settings or command request '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1456 b'frame; got %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1457 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1458 % frame.typeid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1459 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1460
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1461 def _onframeprotocolsettings(self, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1462 assert self._state == b'protocol-settings-receiving'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1463 assert self._protocolsettingsdecoder is not None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1464
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1465 if frame.typeid != FRAME_TYPE_SENDER_PROTOCOL_SETTINGS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1466 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1467 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1468 _(b'expected sender protocol settings frame; got %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1469 % frame.typeid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1470 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1471
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1472 more = frame.flags & FLAG_SENDER_PROTOCOL_SETTINGS_CONTINUATION
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1473 eos = frame.flags & FLAG_SENDER_PROTOCOL_SETTINGS_EOS
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1474
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1475 if more and eos:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1476 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1477 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1478 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1479 b'sender protocol settings frame cannot have both '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1480 b'continuation and end of stream flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1481 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1482 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1483
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1484 if not more and not eos:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1485 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1486 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1487 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1488 b'sender protocol settings frame must have continuation or '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1489 b'end of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1490 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1491 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1492
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1493 # TODO establish limits for maximum amount of data that can be
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1494 # buffered.
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1495 try:
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1496 self._protocolsettingsdecoder.decode(frame.payload)
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1497 except Exception as e:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1498 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1499 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1500 _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1501 b'error decoding CBOR from sender protocol settings frame: %s'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1502 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1503 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1504 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1505
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1506 if more:
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1507 return self._makewantframeresult()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1508
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1509 assert eos
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1510
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1511 decoded = self._protocolsettingsdecoder.getavailable()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1512 self._protocolsettingsdecoder = None
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1513
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1514 if not decoded:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1515 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1516 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1517 _(b'sender protocol settings frame did not contain CBOR data')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1518 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1519 elif len(decoded) > 1:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1520 self._state = b'errored'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1521 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1522 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1523 b'sender protocol settings frame contained multiple CBOR '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1524 b'values'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1525 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1526 )
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1527
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1528 d = decoded[0]
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1529
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1530 if b'contentencodings' in d:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1531 self._sendersettings[b'contentencodings'] = d[b'contentencodings']
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1532
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1533 self._state = b'idle'
40127
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1534
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1535 return self._makewantframeresult()
327d40b94bed wireprotov2: handle sender protocol settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40126
diff changeset
1536
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1537 def _onframeidle(self, frame):
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1538 # The only frame type that should be received in this state is a
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1539 # command request.
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1540 if frame.typeid != FRAME_TYPE_COMMAND_REQUEST:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1541 self._state = b'errored'
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1542 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1543 _(b'expected command request frame; got %d') % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1544 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1545
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1546 res = self._validatecommandrequestframe(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1547 if res:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1548 return res
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1549
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1550 if frame.requestid in self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1551 self._state = b'errored'
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1552 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1553 _(b'request with ID %d already received') % frame.requestid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1554 )
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1555
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1556 if frame.requestid in self._activecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1557 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1558 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1559 _(b'request with ID %d is already active') % frame.requestid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1560 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1561
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1562 new = frame.flags & FLAG_COMMAND_REQUEST_NEW
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1563 moreframes = frame.flags & FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1564 expectingdata = frame.flags & FLAG_COMMAND_REQUEST_EXPECT_DATA
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1565
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1566 if not new:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1567 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1568 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1569 _(b'received command request frame without new flag set')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1570 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1571
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1572 payload = util.bytesio()
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1573 payload.write(frame.payload)
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1574
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1575 self._receivingcommands[frame.requestid] = {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1576 b'payload': payload,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1577 b'data': None,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1578 b'requestdone': not moreframes,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1579 b'expectingdata': bool(expectingdata),
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1580 }
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1581
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1582 # This is the final frame for this request. Dispatch it.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1583 if not moreframes and not expectingdata:
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1584 return self._makeruncommandresult(frame.requestid)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1585
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1586 assert moreframes or expectingdata
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1587 self._state = b'command-receiving'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1588 return self._makewantframeresult()
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1589
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1590 def _onframecommandreceiving(self, frame):
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1591 if frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1592 # Process new command requests as such.
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1593 if frame.flags & FLAG_COMMAND_REQUEST_NEW:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1594 return self._onframeidle(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1595
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1596 res = self._validatecommandrequestframe(frame)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1597 if res:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1598 return res
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1599
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1600 # All other frames should be related to a command that is currently
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1601 # receiving but is not active.
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1602 if frame.requestid in self._activecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1603 self._state = b'errored'
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1604 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1605 _(b'received frame for request that is still active: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1606 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1607 )
37066
39304dd63589 wireproto: explicitly track which requests are active
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37065
diff changeset
1608
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1609 if frame.requestid not in self._receivingcommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1610 self._state = b'errored'
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1611 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1612 _(b'received frame for request that is not receiving: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1613 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1614 )
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1615
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1616 entry = self._receivingcommands[frame.requestid]
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1617
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1618 if frame.typeid == FRAME_TYPE_COMMAND_REQUEST:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1619 moreframes = frame.flags & FLAG_COMMAND_REQUEST_MORE_FRAMES
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1620 expectingdata = bool(frame.flags & FLAG_COMMAND_REQUEST_EXPECT_DATA)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1621
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1622 if entry[b'requestdone']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1623 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1624 return self._makeerrorresult(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1625 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1626 b'received command request frame when request frames '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1627 b'were supposedly done'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1628 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1629 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1630
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1631 if expectingdata != entry[b'expectingdata']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1632 self._state = b'errored'
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1633 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1634 _(b'mismatch between expect data flag and previous frame')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1635 )
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1636
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1637 entry[b'payload'].write(frame.payload)
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1638
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1639 if not moreframes:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1640 entry[b'requestdone'] = True
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1641
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1642 if not moreframes and not expectingdata:
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1643 return self._makeruncommandresult(frame.requestid)
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1644
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1645 return self._makewantframeresult()
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1646
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1647 elif frame.typeid == FRAME_TYPE_COMMAND_DATA:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1648 if not entry[b'expectingdata']:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1649 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1650 return self._makeerrorresult(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1651 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1652 b'received command data frame for request that is not '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1653 b'expecting data: %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1654 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1655 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1656 )
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1657
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1658 if entry[b'data'] is None:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1659 entry[b'data'] = util.bytesio()
37061
c5e9c3b47366 wireproto: support for receiving multiple requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37060
diff changeset
1660
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1661 return self._handlecommanddataframe(frame, entry)
37292
3d0e2cd86e05 wireproto: use CBOR for command requests
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37291
diff changeset
1662 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1663 self._state = b'errored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1664 return self._makeerrorresult(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1665 _(b'received unexpected frame type: %d') % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1666 )
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1667
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1668 def _handlecommanddataframe(self, frame, entry):
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1669 assert frame.typeid == FRAME_TYPE_COMMAND_DATA
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1670
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1671 # TODO support streaming data instead of buffering it.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1672 entry[b'data'].write(frame.payload)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1673
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1674 if frame.flags & FLAG_COMMAND_DATA_CONTINUATION:
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1675 return self._makewantframeresult()
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1676 elif frame.flags & FLAG_COMMAND_DATA_EOS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1677 entry[b'data'].seek(0)
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1678 return self._makeruncommandresult(frame.requestid)
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1679 else:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1680 self._state = b'errored'
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1681 return self._makeerrorresult(_(b'command data frame without flags'))
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37054
diff changeset
1682
37064
884a0c1604ad wireproto: define attr-based classes for representing frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37063
diff changeset
1683 def _onframeerrored(self, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1684 return self._makeerrorresult(_(b'server already errored'))
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1685
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1686
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
1687 class commandrequest:
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1688 """Represents a request to run a command."""
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1689
40025
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
1690 def __init__(self, requestid, name, args, datafh=None, redirect=None):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1691 self.requestid = requestid
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1692 self.name = name
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1693 self.args = args
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1694 self.datafh = datafh
40025
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
1695 self.redirect = redirect
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1696 self.state = b'pending'
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1697
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1698
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 49004
diff changeset
1699 class clientreactor:
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1700 """Holds state of a client issuing frame-based protocol requests.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1701
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1702 This is like ``serverreactor`` but for client-side state.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1703
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1704 Each instance is bound to the lifetime of a connection. For persistent
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1705 connection transports using e.g. TCP sockets and speaking the raw
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1706 framing protocol, there will be a single instance for the lifetime of
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1707 the TCP socket. For transports where there are multiple discrete
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1708 interactions (say tunneled within in HTTP request), there will be a
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1709 separate instance for each distinct interaction.
40128
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1710
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1711 Consumers are expected to tell instances when events occur by calling
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1712 various methods. These methods return a 2-tuple describing any follow-up
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1713 action(s) to take. The first element is the name of an action to
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1714 perform. The second is a data structure (usually a dict) specific to
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1715 that action that contains more information. e.g. if the reactor wants
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1716 to send frames to the server, the data structure will contain a reference
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1717 to those frames.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1718
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1719 Valid actions that consumers can be instructed to take are:
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1720
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1721 noop
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1722 Indicates no additional action is required.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1723
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1724 sendframes
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1725 Indicates that frames should be sent to the server. The ``framegen``
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1726 key contains a generator of frames that should be sent. The reactor
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1727 assumes that all frames in this generator are sent to the server.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1728
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1729 error
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1730 Indicates that an error occurred. The ``message`` key contains an
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1731 error message describing the failure.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1732
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1733 responsedata
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1734 Indicates a response to a previously-issued command was received.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1735
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1736 The ``request`` key contains the ``commandrequest`` instance that
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1737 represents the request this data is for.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1738
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1739 The ``data`` key contains the decoded data from the server.
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1740
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1741 ``expectmore`` and ``eos`` evaluate to True when more response data
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1742 is expected to follow or we're at the end of the response stream,
080419fa4fe4 wireprotov2: document client reactor actions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40127
diff changeset
1743 respectively.
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1744 """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1745
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1746 def __init__(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1747 self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1748 ui,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1749 hasmultiplesend=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1750 buffersends=True,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1751 clientcontentencoders=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1752 ):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1753 """Create a new instance.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1754
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1755 ``hasmultiplesend`` indicates whether multiple sends are supported
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1756 by the transport. When True, it is possible to send commands immediately
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1757 instead of buffering until the caller signals an intent to finish a
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1758 send operation.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1759
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1760 ``buffercommands`` indicates whether sends should be buffered until the
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1761 last request has been issued.
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1762
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1763 ``clientcontentencoders`` is an iterable of content encoders the client
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1764 will advertise to the server and that the server can use for encoding
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1765 data. If not defined, the client will not advertise content encoders
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1766 to the server.
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1767 """
40130
293835e0fff7 wireprotov2: pass ui into clientreactor and serverreactor
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40129
diff changeset
1768 self._ui = ui
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1769 self._hasmultiplesend = hasmultiplesend
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1770 self._buffersends = buffersends
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1771 self._clientcontentencoders = clientcontentencoders
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1772
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1773 self._canissuecommands = True
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1774 self._cansend = True
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1775 self._protocolsettingssent = False
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1776
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1777 self._nextrequestid = 1
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1778 # We only support a single outgoing stream for now.
40131
5d44c4d1d516 wireprotov2: establish dedicated classes for input and output streams
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40130
diff changeset
1779 self._outgoingstream = outputstream(1)
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1780 self._pendingrequests = collections.deque()
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1781 self._activerequests = {}
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1782 self._incomingstreams = {}
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1783 self._streamsettingsdecoders = {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1784
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1785 populatestreamencoders()
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1786
40025
86b22a4cfab1 wireprotov2: client support for advertising redirect targets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40021
diff changeset
1787 def callcommand(self, name, args, datafh=None, redirect=None):
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1788 """Request that a command be executed.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1789
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1790 Receives the command name, a dict of arguments to pass to the command,
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1791 and an optional file object containing the raw data for the command.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1792
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1793 Returns a 3-tuple of (request, action, action data).
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1794 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1795 if not self._canissuecommands:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1796 raise error.ProgrammingError(b'cannot issue new commands')
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1797
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1798 requestid = self._nextrequestid
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1799 self._nextrequestid += 2
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1800
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1801 request = commandrequest(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1802 requestid, name, args, datafh=datafh, redirect=redirect
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1803 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1804
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1805 if self._buffersends:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1806 self._pendingrequests.append(request)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1807 return request, b'noop', {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1808 else:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1809 if not self._cansend:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1810 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1811 b'sends cannot be performed on this instance'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1812 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1813
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1814 if not self._hasmultiplesend:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1815 self._cansend = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1816 self._canissuecommands = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1817
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1818 return (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1819 request,
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1820 b'sendframes',
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1821 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1822 b'framegen': self._makecommandframes(request),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1823 },
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1824 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1825
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1826 def flushcommands(self):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1827 """Request that all queued commands be sent.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1828
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1829 If any commands are buffered, this will instruct the caller to send
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1830 them over the wire. If no commands are buffered it instructs the client
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1831 to no-op.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1832
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1833 If instances aren't configured for multiple sends, no new command
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1834 requests are allowed after this is called.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1835 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1836 if not self._pendingrequests:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1837 return b'noop', {}
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1838
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1839 if not self._cansend:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1840 raise error.ProgrammingError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
1841 b'sends cannot be performed on this instance'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1842 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1843
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1844 # If the instance only allows sending once, mark that we have fired
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1845 # our one shot.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1846 if not self._hasmultiplesend:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1847 self._canissuecommands = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1848 self._cansend = False
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1849
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1850 def makeframes():
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1851 while self._pendingrequests:
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1852 request = self._pendingrequests.popleft()
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1853 yield from self._makecommandframes(request)
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1854
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1855 return b'sendframes', {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1856 b'framegen': makeframes(),
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1857 }
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1858
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1859 def _makecommandframes(self, request):
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1860 """Emit frames to issue a command request.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1861
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1862 As a side-effect, update request accounting to reflect its changed
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1863 state.
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1864 """
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1865 self._activerequests[request.requestid] = request
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1866 request.state = b'sending'
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1867
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1868 if not self._protocolsettingssent and self._clientcontentencoders:
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1869 self._protocolsettingssent = True
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1870
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1871 payload = b''.join(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1872 cborutil.streamencode(
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1873 {
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1874 b'contentencodings': self._clientcontentencoders,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 43554
diff changeset
1875 }
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1876 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1877 )
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1878
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1879 yield self._outgoingstream.makeframe(
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1880 requestid=request.requestid,
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1881 typeid=FRAME_TYPE_SENDER_PROTOCOL_SETTINGS,
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1882 flags=FLAG_SENDER_PROTOCOL_SETTINGS_EOS,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1883 payload=payload,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1884 )
40133
762ef19a07e3 wireprotov2: send protocol settings frame from client
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40132
diff changeset
1885
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1886 res = createcommandframes(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1887 self._outgoingstream,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1888 request.requestid,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1889 request.name,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1890 request.args,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1891 datafh=request.datafh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1892 redirect=request.redirect,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1893 )
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1894
52669
e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52668
diff changeset
1895 yield from res
37543
01361be9e2dc wireproto: introduce a reactor for client-side state
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37485
diff changeset
1896
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1897 request.state = b'sent'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1898
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1899 def onframerecv(self, frame):
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1900 """Process a frame that has been received off the wire.
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1901
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1902 Returns a 2-tuple of (action, meta) describing further action the
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1903 caller needs to take as a result of receiving this frame.
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1904 """
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1905 if frame.streamid % 2:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1906 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1907 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1908 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1909 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1910 _(b'received frame with odd numbered stream ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1911 % frame.streamid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1912 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1913 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1914 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1915
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1916 if frame.streamid not in self._incomingstreams:
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1917 if not frame.streamflags & STREAM_FLAG_BEGIN_STREAM:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1918 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1919 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1920 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1921 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1922 b'received frame on unknown stream '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1923 b'without beginning of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1924 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1925 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1926 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1927
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1928 self._incomingstreams[frame.streamid] = inputstream(frame.streamid)
37656
e6870bca1f47 wireprotoframing: record when new stream is encountered
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37655
diff changeset
1929
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1930 stream = self._incomingstreams[frame.streamid]
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1931
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1932 # If the payload is encoded, ask the stream to decode it. We
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1933 # merely substitute the decoded result into the frame payload as
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1934 # if it had been transferred all along.
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1935 if frame.streamflags & STREAM_FLAG_ENCODING_APPLIED:
40132
e67522413ca8 wireprotov2: define and use stream encoders
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40131
diff changeset
1936 frame.payload = stream.decode(frame.payload)
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1937
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1938 if frame.streamflags & STREAM_FLAG_END_STREAM:
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1939 del self._incomingstreams[frame.streamid]
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1940
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1941 if frame.typeid == FRAME_TYPE_STREAM_SETTINGS:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1942 return self._onstreamsettingsframe(frame)
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1943
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1944 if frame.requestid not in self._activerequests:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1945 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1946 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1947 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1948 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1949 _(b'received frame for inactive request ID: %d')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1950 % frame.requestid
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1951 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1952 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1953 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1954
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1955 request = self._activerequests[frame.requestid]
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1956 request.state = b'receiving'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1957
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1958 handlers = {
37724
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
1959 FRAME_TYPE_COMMAND_RESPONSE: self._oncommandresponseframe,
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
1960 FRAME_TYPE_ERROR_RESPONSE: self._onerrorresponseframe,
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1961 }
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1962
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1963 meth = handlers.get(frame.typeid)
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1964 if not meth:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1965 raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1966 b'unhandled frame type: %d' % frame.typeid
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1967 )
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1968
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1969 return meth(request, frame)
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
1970
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1971 def _onstreamsettingsframe(self, frame):
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1972 assert frame.typeid == FRAME_TYPE_STREAM_SETTINGS
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1973
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1974 more = frame.flags & FLAG_STREAM_ENCODING_SETTINGS_CONTINUATION
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1975 eos = frame.flags & FLAG_STREAM_ENCODING_SETTINGS_EOS
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1976
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1977 if more and eos:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1978 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1979 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1980 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1981 b'message': (
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1982 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1983 b'stream encoding settings frame cannot have both '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1984 b'continuation and end of stream flags set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1985 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1986 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1987 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1988 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1989
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
1990 if not more and not eos:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1991 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1992 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1993 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1994 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1995 b'stream encoding settings frame must have '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1996 b'continuation or end of stream flag set'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1997 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1998 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
1999 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2000
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2001 if frame.streamid not in self._streamsettingsdecoders:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2002 decoder = cborutil.bufferingdecoder()
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2003 self._streamsettingsdecoders[frame.streamid] = decoder
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2004
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2005 decoder = self._streamsettingsdecoders[frame.streamid]
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2006
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2007 try:
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2008 decoder.decode(frame.payload)
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2009 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2010 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2011 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2012 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2013 b'message': (
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2014 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2015 b'error decoding CBOR from stream encoding '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2016 b'settings frame: %s'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2017 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2018 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2019 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2020 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2021 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2022
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2023 if more:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2024 return b'noop', {}
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2025
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2026 assert eos
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2027
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2028 decoded = decoder.getavailable()
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2029 del self._streamsettingsdecoders[frame.streamid]
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2030
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2031 if not decoded:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2032 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2033 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2034 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2035 b'message': _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2036 b'stream encoding settings frame did not contain '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2037 b'CBOR data'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2038 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2039 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2040 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2041
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2042 try:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2043 self._incomingstreams[frame.streamid].setdecoder(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2044 self._ui, decoded[0], decoded[1:]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2045 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2046 except Exception as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2047 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2048 b'error',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2049 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2050 b'message': (
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2051 _(b'error setting stream decoder: %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2052 % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2053 ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2054 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2055 )
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2056
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2057 return b'noop', {}
40129
57782791b7e9 wireprotov2: handle stream encoding settings frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40128
diff changeset
2058
37724
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
2059 def _oncommandresponseframe(self, request, frame):
deff7cf7eefd wireprotov2: change frame type and name for command response
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37723
diff changeset
2060 if frame.flags & FLAG_COMMAND_RESPONSE_EOS:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2061 request.state = b'received'
37544
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
2062 del self._activerequests[request.requestid]
55b5ba8d4e68 wireproto: client reactor support for receiving frames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37543
diff changeset
2063
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2064 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2065 b'responsedata',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2066 {
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2067 b'request': request,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2068 b'expectmore': frame.flags & FLAG_COMMAND_RESPONSE_CONTINUATION,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2069 b'eos': frame.flags & FLAG_COMMAND_RESPONSE_EOS,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2070 b'data': frame.payload,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2071 },
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2072 )
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2073
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2074 def _onerrorresponseframe(self, request, frame):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2075 request.state = b'errored'
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2076 del self._activerequests[request.requestid]
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2077
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2078 # The payload should be a CBOR map.
39465
36f487a332ad wireprotoframing: use our CBOR module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37728
diff changeset
2079 m = cborutil.decodeall(frame.payload)[0]
37726
0c184ca594bb wireprotov2: change behavior of error frame
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37725
diff changeset
2080
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2081 return (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2082 b'error',
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2083 {
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2084 b'request': request,
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2085 b'type': m[b'type'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2086 b'message': m[b'message'],
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
2087 },
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 40328
diff changeset
2088 )