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annotate mercurial/win32.py @ 33419:7c33adc823e0

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win32: work around a WinError problem handling HRESULT types I ran into this ctypes bug while working with the Crypto API. While this could be an issue with any Win32 API in theory, the handful of things that we call are older functions that are unlikely to return COM errors, so I didn't retrofit this everywhere.
author Matt Harbison <matt_harbison@yahoo.com>
date Thu, 30 Mar 2017 00:33:00 -0400
parents 4c3d9ee87382
children 14af04391fb9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # win32.py - utility functions that use win32 API
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2 #
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
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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 from __future__ import absolute_import
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9
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10 import ctypes
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11 import errno
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12 import msvcrt
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13 import os
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14 import random
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15 import subprocess
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16
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17 from . import (
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18 encoding,
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19 pycompat,
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20 )
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21
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22 _kernel32 = ctypes.windll.kernel32
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23 _advapi32 = ctypes.windll.advapi32
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24 _user32 = ctypes.windll.user32
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25
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26 _BOOL = ctypes.c_long
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27 _WORD = ctypes.c_ushort
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28 _DWORD = ctypes.c_ulong
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29 _UINT = ctypes.c_uint
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30 _LONG = ctypes.c_long
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31 _LPCSTR = _LPSTR = ctypes.c_char_p
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32 _HANDLE = ctypes.c_void_p
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33 _HWND = _HANDLE
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34
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35 _INVALID_HANDLE_VALUE = _HANDLE(-1).value
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36
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37 # GetLastError
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38 _ERROR_SUCCESS = 0
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39 _ERROR_NO_MORE_FILES = 18
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40 _ERROR_INVALID_PARAMETER = 87
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41 _ERROR_BROKEN_PIPE = 109
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42 _ERROR_INSUFFICIENT_BUFFER = 122
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43
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44 # WPARAM is defined as UINT_PTR (unsigned type)
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45 # LPARAM is defined as LONG_PTR (signed type)
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46 if ctypes.sizeof(ctypes.c_long) == ctypes.sizeof(ctypes.c_void_p):
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47 _WPARAM = ctypes.c_ulong
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48 _LPARAM = ctypes.c_long
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49 elif ctypes.sizeof(ctypes.c_longlong) == ctypes.sizeof(ctypes.c_void_p):
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50 _WPARAM = ctypes.c_ulonglong
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51 _LPARAM = ctypes.c_longlong
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52
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53 class _FILETIME(ctypes.Structure):
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54 _fields_ = [('dwLowDateTime', _DWORD),
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55 ('dwHighDateTime', _DWORD)]
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56
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57 class _BY_HANDLE_FILE_INFORMATION(ctypes.Structure):
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58 _fields_ = [('dwFileAttributes', _DWORD),
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59 ('ftCreationTime', _FILETIME),
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60 ('ftLastAccessTime', _FILETIME),
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61 ('ftLastWriteTime', _FILETIME),
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62 ('dwVolumeSerialNumber', _DWORD),
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63 ('nFileSizeHigh', _DWORD),
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64 ('nFileSizeLow', _DWORD),
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65 ('nNumberOfLinks', _DWORD),
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66 ('nFileIndexHigh', _DWORD),
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67 ('nFileIndexLow', _DWORD)]
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68
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69 # CreateFile
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70 _FILE_SHARE_READ = 0x00000001
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71 _FILE_SHARE_WRITE = 0x00000002
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72 _FILE_SHARE_DELETE = 0x00000004
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73
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74 _OPEN_EXISTING = 3
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75
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76 _FILE_FLAG_BACKUP_SEMANTICS = 0x02000000
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77
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78 # SetFileAttributes
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79 _FILE_ATTRIBUTE_NORMAL = 0x80
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80 _FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x2000
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81
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82 # Process Security and Access Rights
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83 _PROCESS_QUERY_INFORMATION = 0x0400
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84
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85 # GetExitCodeProcess
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86 _STILL_ACTIVE = 259
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87
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88 class _STARTUPINFO(ctypes.Structure):
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89 _fields_ = [('cb', _DWORD),
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90 ('lpReserved', _LPSTR),
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91 ('lpDesktop', _LPSTR),
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92 ('lpTitle', _LPSTR),
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93 ('dwX', _DWORD),
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94 ('dwY', _DWORD),
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95 ('dwXSize', _DWORD),
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96 ('dwYSize', _DWORD),
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97 ('dwXCountChars', _DWORD),
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98 ('dwYCountChars', _DWORD),
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99 ('dwFillAttribute', _DWORD),
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100 ('dwFlags', _DWORD),
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101 ('wShowWindow', _WORD),
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102 ('cbReserved2', _WORD),
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103 ('lpReserved2', ctypes.c_char_p),
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104 ('hStdInput', _HANDLE),
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105 ('hStdOutput', _HANDLE),
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106 ('hStdError', _HANDLE)]
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107
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108 class _PROCESS_INFORMATION(ctypes.Structure):
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109 _fields_ = [('hProcess', _HANDLE),
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110 ('hThread', _HANDLE),
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111 ('dwProcessId', _DWORD),
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112 ('dwThreadId', _DWORD)]
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113
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114 _CREATE_NO_WINDOW = 0x08000000
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115 _SW_HIDE = 0
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116
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117 class _COORD(ctypes.Structure):
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118 _fields_ = [('X', ctypes.c_short),
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119 ('Y', ctypes.c_short)]
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120
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121 class _SMALL_RECT(ctypes.Structure):
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122 _fields_ = [('Left', ctypes.c_short),
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123 ('Top', ctypes.c_short),
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124 ('Right', ctypes.c_short),
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125 ('Bottom', ctypes.c_short)]
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126
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127 class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure):
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128 _fields_ = [('dwSize', _COORD),
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129 ('dwCursorPosition', _COORD),
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130 ('wAttributes', _WORD),
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131 ('srWindow', _SMALL_RECT),
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132 ('dwMaximumWindowSize', _COORD)]
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133
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134 _STD_OUTPUT_HANDLE = _DWORD(-11).value
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135 _STD_ERROR_HANDLE = _DWORD(-12).value
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136
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diff changeset
137 # types of parameters of C functions used (required by pypy)
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diff changeset
138
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diff changeset
139 _kernel32.CreateFileA.argtypes = [_LPCSTR, _DWORD, _DWORD, ctypes.c_void_p,
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140 _DWORD, _DWORD, _HANDLE]
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diff changeset
141 _kernel32.CreateFileA.restype = _HANDLE
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diff changeset
142
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143 _kernel32.GetFileInformationByHandle.argtypes = [_HANDLE, ctypes.c_void_p]
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144 _kernel32.GetFileInformationByHandle.restype = _BOOL
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145
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146 _kernel32.CloseHandle.argtypes = [_HANDLE]
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147 _kernel32.CloseHandle.restype = _BOOL
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148
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149 try:
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150 _kernel32.CreateHardLinkA.argtypes = [_LPCSTR, _LPCSTR, ctypes.c_void_p]
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151 _kernel32.CreateHardLinkA.restype = _BOOL
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diff changeset
152 except AttributeError:
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153 pass
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154
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155 _kernel32.SetFileAttributesA.argtypes = [_LPCSTR, _DWORD]
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156 _kernel32.SetFileAttributesA.restype = _BOOL
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157
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158 _kernel32.OpenProcess.argtypes = [_DWORD, _BOOL, _DWORD]
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159 _kernel32.OpenProcess.restype = _HANDLE
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160
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diff changeset
161 _kernel32.GetExitCodeProcess.argtypes = [_HANDLE, ctypes.c_void_p]
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162 _kernel32.GetExitCodeProcess.restype = _BOOL
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163
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164 _kernel32.GetLastError.argtypes = []
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165 _kernel32.GetLastError.restype = _DWORD
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166
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167 _kernel32.GetModuleFileNameA.argtypes = [_HANDLE, ctypes.c_void_p, _DWORD]
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168 _kernel32.GetModuleFileNameA.restype = _DWORD
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169
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170 _kernel32.CreateProcessA.argtypes = [_LPCSTR, _LPCSTR, ctypes.c_void_p,
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171 ctypes.c_void_p, _BOOL, _DWORD, ctypes.c_void_p, _LPCSTR, ctypes.c_void_p,
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diff changeset
172 ctypes.c_void_p]
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diff changeset
173 _kernel32.CreateProcessA.restype = _BOOL
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diff changeset
174
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diff changeset
175 _kernel32.ExitProcess.argtypes = [_UINT]
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176 _kernel32.ExitProcess.restype = None
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diff changeset
177
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diff changeset
178 _kernel32.GetCurrentProcessId.argtypes = []
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179 _kernel32.GetCurrentProcessId.restype = _DWORD
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diff changeset
180
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diff changeset
181 _SIGNAL_HANDLER = ctypes.WINFUNCTYPE(_BOOL, _DWORD)
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182 _kernel32.SetConsoleCtrlHandler.argtypes = [_SIGNAL_HANDLER, _BOOL]
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diff changeset
183 _kernel32.SetConsoleCtrlHandler.restype = _BOOL
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184
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185 _kernel32.SetConsoleMode.argtypes = [_HANDLE, _DWORD]
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186 _kernel32.SetConsoleMode.restype = _BOOL
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diff changeset
187
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diff changeset
188 _kernel32.GetConsoleMode.argtypes = [_HANDLE, ctypes.c_void_p]
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189 _kernel32.GetConsoleMode.restype = _BOOL
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190
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191 _kernel32.GetStdHandle.argtypes = [_DWORD]
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192 _kernel32.GetStdHandle.restype = _HANDLE
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diff changeset
193
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diff changeset
194 _kernel32.GetConsoleScreenBufferInfo.argtypes = [_HANDLE, ctypes.c_void_p]
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195 _kernel32.GetConsoleScreenBufferInfo.restype = _BOOL
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diff changeset
196
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diff changeset
197 _advapi32.GetUserNameA.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
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198 _advapi32.GetUserNameA.restype = _BOOL
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diff changeset
199
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200 _user32.GetWindowThreadProcessId.argtypes = [_HANDLE, ctypes.c_void_p]
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diff changeset
201 _user32.GetWindowThreadProcessId.restype = _DWORD
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diff changeset
202
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diff changeset
203 _user32.ShowWindow.argtypes = [_HANDLE, ctypes.c_int]
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204 _user32.ShowWindow.restype = _BOOL
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diff changeset
205
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206 _WNDENUMPROC = ctypes.WINFUNCTYPE(_BOOL, _HWND, _LPARAM)
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diff changeset
207 _user32.EnumWindows.argtypes = [_WNDENUMPROC, _LPARAM]
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diff changeset
208 _user32.EnumWindows.restype = _BOOL
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diff changeset
209
24652
232bf0028596 win32: add a method to fetch the available pipe data size
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diff changeset
210 _kernel32.PeekNamedPipe.argtypes = [_HANDLE, ctypes.c_void_p, _DWORD,
232bf0028596 win32: add a method to fetch the available pipe data size
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diff changeset
211 ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
232bf0028596 win32: add a method to fetch the available pipe data size
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diff changeset
212 _kernel32.PeekNamedPipe.restype = _BOOL
232bf0028596 win32: add a method to fetch the available pipe data size
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diff changeset
213
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diff changeset
214 def _raiseoserror(name):
33419
7c33adc823e0 win32: work around a WinError problem handling HRESULT types
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215 # Force the code to a signed int to avoid an 'int too large' error.
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216 # See https://bugs.python.org/issue28474
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diff changeset
217 code = _kernel32.GetLastError()
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diff changeset
218 if code > 0x7fffffff:
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diff changeset
219 code -= 2**32
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diff changeset
220 err = ctypes.WinError(code=code)
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221 raise OSError(err.errno, '%s: %s' % (name, err.strerror))
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diff changeset
222
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
223 def _getfileinfo(name):
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diff changeset
224 fh = _kernel32.CreateFileA(name, 0,
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225 _FILE_SHARE_READ | _FILE_SHARE_WRITE | _FILE_SHARE_DELETE,
17006
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
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diff changeset
226 None, _OPEN_EXISTING, _FILE_FLAG_BACKUP_SEMANTICS, None)
13375
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diff changeset
227 if fh == _INVALID_HANDLE_VALUE:
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diff changeset
228 _raiseoserror(name)
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
229 try:
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
230 fi = _BY_HANDLE_FILE_INFORMATION()
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diff changeset
231 if not _kernel32.GetFileInformationByHandle(fh, ctypes.byref(fi)):
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
232 _raiseoserror(name)
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
233 return fi
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
234 finally:
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
235 _kernel32.CloseHandle(fh)
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
236
14235
b9e1b041744f rename util.os_link to oslink
Adrian Buehlmann <adrian@cadifra.com>
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diff changeset
237 def oslink(src, dst):
13976
9ca1ff3d4f8c win32: Wine doesn't know about hardlinks
Matt Mackall <mpm@selenic.com>
parents: 13795
diff changeset
238 try:
9ca1ff3d4f8c win32: Wine doesn't know about hardlinks
Matt Mackall <mpm@selenic.com>
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diff changeset
239 if not _kernel32.CreateHardLinkA(dst, src, None):
9ca1ff3d4f8c win32: Wine doesn't know about hardlinks
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diff changeset
240 _raiseoserror(src)
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Matt Mackall <mpm@selenic.com>
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diff changeset
241 except AttributeError: # Wine doesn't support this function
13375
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diff changeset
242 _raiseoserror(src)
2054
e18beba54a7e fix exception handling on windows.
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parents:
diff changeset
243
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
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diff changeset
244 def nlinks(name):
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diff changeset
245 '''return number of hardlinks for the given file'''
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diff changeset
246 return _getfileinfo(name).nNumberOfLinks
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e18beba54a7e fix exception handling on windows.
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parents:
diff changeset
247
17006
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
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diff changeset
248 def samefile(path1, path2):
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
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diff changeset
249 '''Returns whether path1 and path2 refer to the same file or directory.'''
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
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diff changeset
250 res1 = _getfileinfo(path1)
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
parents: 16807
diff changeset
251 res2 = _getfileinfo(path2)
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
252 return (res1.dwVolumeSerialNumber == res2.dwVolumeSerialNumber
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
253 and res1.nFileIndexHigh == res2.nFileIndexHigh
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
254 and res1.nFileIndexLow == res2.nFileIndexLow)
10218
750b7a4f01f6 Add support for relinking on Windows.
Siddharth Agarwal <sid.bugzilla@gmail.com>
parents: 9198
diff changeset
255
17006
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
parents: 16807
diff changeset
256 def samedevice(path1, path2):
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
parents: 16807
diff changeset
257 '''Returns whether path1 and path2 are on the same device.'''
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
parents: 16807
diff changeset
258 res1 = _getfileinfo(path1)
6fc7fd72ba3e win32.py: let samefile and samedevice work on directories too
Adrian Buehlmann <adrian@cadifra.com>
parents: 16807
diff changeset
259 res2 = _getfileinfo(path2)
13375
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Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
260 return res1.dwVolumeSerialNumber == res2.dwVolumeSerialNumber
10218
750b7a4f01f6 Add support for relinking on Windows.
Siddharth Agarwal <sid.bugzilla@gmail.com>
parents: 9198
diff changeset
261
24652
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
262 def peekpipe(pipe):
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
263 handle = msvcrt.get_osfhandle(pipe.fileno())
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
264 avail = _DWORD()
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
265
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
266 if not _kernel32.PeekNamedPipe(handle, None, 0, None, ctypes.byref(avail),
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
267 None):
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
268 err = _kernel32.GetLastError()
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
269 if err == _ERROR_BROKEN_PIPE:
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
270 return 0
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
271 raise ctypes.WinError(err)
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
272
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
273 return avail.value
232bf0028596 win32: add a method to fetch the available pipe data size
Matt Harbison <matt_harbison@yahoo.com>
parents: 24494
diff changeset
274
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
275 def testpid(pid):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
276 '''return True if pid is still running or unable to
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
277 determine, False otherwise'''
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
278 h = _kernel32.OpenProcess(_PROCESS_QUERY_INFORMATION, False, pid)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
279 if h:
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
280 try:
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
281 status = _DWORD()
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
282 if _kernel32.GetExitCodeProcess(h, ctypes.byref(status)):
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
283 return status.value == _STILL_ACTIVE
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
284 finally:
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
285 _kernel32.CloseHandle(h)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
286 return _kernel32.GetLastError() != _ERROR_INVALID_PARAMETER
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
287
14236
e949a008999d rename util.executable_path to executablepath
Adrian Buehlmann <adrian@cadifra.com>
parents: 14235
diff changeset
288 def executablepath():
13376
60b5c6c3fd12 win32: new function executable_path
Adrian Buehlmann <adrian@cadifra.com>
parents: 13375
diff changeset
289 '''return full path of hg.exe'''
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
290 size = 600
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
291 buf = ctypes.create_string_buffer(size + 1)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
292 len = _kernel32.GetModuleFileNameA(None, ctypes.byref(buf), size)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
293 if len == 0:
24494
f2b87f4856bf win32: add comment about WinError
Adrian Buehlmann <adrian@cadifra.com>
parents: 24418
diff changeset
294 raise ctypes.WinError() # Note: WinError is a function
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
295 elif len == size:
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
296 raise ctypes.WinError(_ERROR_INSUFFICIENT_BUFFER)
13376
60b5c6c3fd12 win32: new function executable_path
Adrian Buehlmann <adrian@cadifra.com>
parents: 13375
diff changeset
297 return buf.value
60b5c6c3fd12 win32: new function executable_path
Adrian Buehlmann <adrian@cadifra.com>
parents: 13375
diff changeset
298
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7778
diff changeset
299 def getuser():
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7778
diff changeset
300 '''return name of current user'''
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
301 size = _DWORD(300)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
302 buf = ctypes.create_string_buffer(size.value + 1)
14345
bf9a105aed0a win32.py: add argtypes and restype
Adrian Buehlmann <adrian@cadifra.com>
parents: 14344
diff changeset
303 if not _advapi32.GetUserNameA(ctypes.byref(buf), ctypes.byref(size)):
24418
a2285e2fc949 win32: 'raise ctypes.WinError' -> 'raise ctypes.WinError()'
Matt Harbison <matt_harbison@yahoo.com>
parents: 21226
diff changeset
304 raise ctypes.WinError()
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
305 return buf.value
4672
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
diff changeset
306
14237
4d684d8210a1 rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents: 14236
diff changeset
307 _signalhandler = []
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
308
14237
4d684d8210a1 rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents: 14236
diff changeset
309 def setsignalhandler():
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
310 '''Register a termination handler for console events including
4672
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
diff changeset
311 CTRL+C. python signal handlers do not work well with socket
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
diff changeset
312 operations.
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
313 '''
4672
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
diff changeset
314 def handler(event):
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
315 _kernel32.ExitProcess(1)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
316
14237
4d684d8210a1 rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents: 14236
diff changeset
317 if _signalhandler:
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
318 return # already registered
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
319 h = _SIGNAL_HANDLER(handler)
14237
4d684d8210a1 rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents: 14236
diff changeset
320 _signalhandler.append(h) # needed to prevent garbage collection
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
321 if not _kernel32.SetConsoleCtrlHandler(h, True):
24418
a2285e2fc949 win32: 'raise ctypes.WinError' -> 'raise ctypes.WinError()'
Matt Harbison <matt_harbison@yahoo.com>
parents: 21226
diff changeset
322 raise ctypes.WinError()
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
323
10240
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
324 def hidewindow():
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
325
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
326 def callback(hwnd, pid):
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
327 wpid = _DWORD()
14345
bf9a105aed0a win32.py: add argtypes and restype
Adrian Buehlmann <adrian@cadifra.com>
parents: 14344
diff changeset
328 _user32.GetWindowThreadProcessId(hwnd, ctypes.byref(wpid))
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
329 if pid == wpid.value:
14345
bf9a105aed0a win32.py: add argtypes and restype
Adrian Buehlmann <adrian@cadifra.com>
parents: 14344
diff changeset
330 _user32.ShowWindow(hwnd, _SW_HIDE)
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
331 return False # stop enumerating windows
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
332 return True
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
333
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
334 pid = _kernel32.GetCurrentProcessId()
14345
bf9a105aed0a win32.py: add argtypes and restype
Adrian Buehlmann <adrian@cadifra.com>
parents: 14344
diff changeset
335 _user32.EnumWindows(_WNDENUMPROC(callback), pid)
11012
81631f0cf13b win32: detect console width on Windows
Patrick Mezard <pmezard@gmail.com>
parents: 10388
diff changeset
336
30314
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
337 def termsize():
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
338 # cmd.exe does not handle CR like a unix console, the CR is
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
339 # counted in the line length. On 80 columns consoles, if 80
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
340 # characters are written, the following CR won't apply on the
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
341 # current line but on the new one. Keep room for it.
30313
392633d7860e scmutil: clarify that we explicitly do termwidth - 1 on Windows
Yuya Nishihara <yuya@tcha.org>
parents: 25994
diff changeset
342 width = 80 - 1
30314
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
343 height = 25
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
344 # Query stderr to avoid problems with redirections
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
345 screenbuf = _kernel32.GetStdHandle(
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
346 _STD_ERROR_HANDLE) # don't close the handle returned
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
347 if screenbuf is None or screenbuf == _INVALID_HANDLE_VALUE:
30314
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
348 return width, height
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
349 csbi = _CONSOLE_SCREEN_BUFFER_INFO()
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
350 if not _kernel32.GetConsoleScreenBufferInfo(
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
351 screenbuf, ctypes.byref(csbi)):
30314
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
352 return width, height
30313
392633d7860e scmutil: clarify that we explicitly do termwidth - 1 on Windows
Yuya Nishihara <yuya@tcha.org>
parents: 25994
diff changeset
353 width = csbi.srWindow.Right - csbi.srWindow.Left # don't '+ 1'
30314
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
354 height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1
365812902904 scmutil: extend termwidth() to return terminal height, renamed to termsize()
Yuya Nishihara <yuya@tcha.org>
parents: 30313
diff changeset
355 return width, height
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
356
32664
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
357 def enablevtmode():
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
358 '''Enable virtual terminal mode for the associated console. Return True if
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
359 enabled, else False.'''
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
360
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
361 ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
362
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
363 handle = _kernel32.GetStdHandle(_STD_OUTPUT_HANDLE) # don't close the handle
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
364 if handle == _INVALID_HANDLE_VALUE:
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
365 return False
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
366
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
367 mode = _DWORD(0)
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
368
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
369 if not _kernel32.GetConsoleMode(handle, ctypes.byref(mode)):
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
370 return False
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
371
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
372 if (mode.value & ENABLE_VIRTUAL_TERMINAL_PROCESSING) == 0:
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
373 mode.value |= ENABLE_VIRTUAL_TERMINAL_PROCESSING
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
374
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
375 if not _kernel32.SetConsoleMode(handle, mode):
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
376 return False
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
377
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
378 return True
2d56e6d23be7 win32: add a method to enable ANSI color code processing on Windows 10
Matt Harbison <matt_harbison@yahoo.com>
parents: 30667
diff changeset
379
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
380 def spawndetached(args):
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
381 # No standard library function really spawns a fully detached
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
382 # process under win32 because they allocate pipes or other objects
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
383 # to handle standard streams communications. Passing these objects
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
384 # to the child process requires handle inheritance to be enabled
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
385 # which makes really detached processes impossible.
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
386 si = _STARTUPINFO()
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
387 si.cb = ctypes.sizeof(_STARTUPINFO)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
388
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
389 pi = _PROCESS_INFORMATION()
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
390
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
391 env = ''
30637
344e68882cd3 py3: replace os.environ with encoding.environ (part 4 of 5)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30314
diff changeset
392 for k in encoding.environ:
344e68882cd3 py3: replace os.environ with encoding.environ (part 4 of 5)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30314
diff changeset
393 env += "%s=%s\0" % (k, encoding.environ[k])
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
394 if not env:
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
395 env = '\0'
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
396 env += '\0'
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
397
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
398 args = subprocess.list2cmdline(args)
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
399
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
400 res = _kernel32.CreateProcessA(
17050
e780fb37168b win32: specify _CREATE_NO_WINDOW on spawndetached()
Adrian Buehlmann <adrian@cadifra.com>
parents: 17006
diff changeset
401 None, args, None, None, False, _CREATE_NO_WINDOW,
30667
5861bdbeb9a3 py3: use pycompat.getcwd instead of os.getcwd
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30637
diff changeset
402 env, pycompat.getcwd(), ctypes.byref(si), ctypes.byref(pi))
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
403 if not res:
24418
a2285e2fc949 win32: 'raise ctypes.WinError' -> 'raise ctypes.WinError()'
Matt Harbison <matt_harbison@yahoo.com>
parents: 21226
diff changeset
404 raise ctypes.WinError()
13375
f1fa8f481c7c port win32.py to using the Python ctypes library
Adrian Buehlmann <adrian@cadifra.com>
parents: 13374
diff changeset
405
32676
4c3d9ee87382 win32: drop a py26 daemonizing hack
Matt Harbison <matt_harbison@yahoo.com>
parents: 32664
diff changeset
406 return pi.dwProcessId
13775
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
407
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
408 def unlink(f):
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
409 '''try to implement POSIX' unlink semantics on Windows'''
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
410
21226
4898c37e03c0 win32: backout 1a9ebc83a74c
Steve Borho <steve@borho.org>
parents: 21193
diff changeset
411 if os.path.isdir(f):
4898c37e03c0 win32: backout 1a9ebc83a74c
Steve Borho <steve@borho.org>
parents: 21193
diff changeset
412 # use EPERM because it is POSIX prescribed value, even though
4898c37e03c0 win32: backout 1a9ebc83a74c
Steve Borho <steve@borho.org>
parents: 21193
diff changeset
413 # unlink(2) on directories returns EISDIR on Linux
4898c37e03c0 win32: backout 1a9ebc83a74c
Steve Borho <steve@borho.org>
parents: 21193
diff changeset
414 raise IOError(errno.EPERM,
4898c37e03c0 win32: backout 1a9ebc83a74c
Steve Borho <steve@borho.org>
parents: 21193
diff changeset
415 "Unlinking directory not permitted: '%s'" % f)
19159
1b329f8c7b24 windows: check target type before actual unlinking to follow POSIX semantics
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18959
diff changeset
416
13775
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
417 # POSIX allows to unlink and rename open files. Windows has serious
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
418 # problems with doing that:
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
419 # - Calling os.unlink (or os.rename) on a file f fails if f or any
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
420 # hardlinked copy of f has been opened with Python's open(). There is no
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
421 # way such a file can be deleted or renamed on Windows (other than
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
422 # scheduling the delete or rename for the next reboot).
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
423 # - Calling os.unlink on a file that has been opened with Mercurial's
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
424 # posixfile (or comparable methods) will delay the actual deletion of
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
425 # the file for as long as the file is held open. The filename is blocked
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
426 # during that time and cannot be used for recreating a new file under
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
427 # that same name ("zombie file"). Directories containing such zombie files
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
428 # cannot be removed or moved.
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
429 # A file that has been opened with posixfile can be renamed, so we rename
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
430 # f to a random temporary name before calling os.unlink on it. This allows
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
431 # callers to recreate f immediately while having other readers do their
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
432 # implicit zombie filename blocking on a temporary name.
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
433
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
434 for tries in xrange(10):
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
435 temp = '%s-%08x' % (f, random.randint(0, 0xffffffff))
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
436 try:
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
437 os.rename(f, temp) # raises OSError EEXIST if temp exists
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
438 break
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 24652
diff changeset
439 except OSError as e:
13775
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
440 if e.errno != errno.EEXIST:
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
441 raise
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
442 else:
18175
fd3f8b87b682 win32: clean up use of two-argument raise
Augie Fackler <raf@durin42.com>
parents: 17428
diff changeset
443 raise IOError(errno.EEXIST, "No usable temporary filename found")
13775
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
444
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
445 try:
930efdc6bfa4 windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents: 13379
diff changeset
446 os.unlink(temp)
13776
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
447 except OSError:
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
448 # The unlink might have failed because the READONLY attribute may heave
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
449 # been set on the original file. Rename works fine with READONLY set,
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
450 # but not os.unlink. Reset all attributes and try again.
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
451 _kernel32.SetFileAttributesA(temp, _FILE_ATTRIBUTE_NORMAL)
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
452 try:
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
453 os.unlink(temp)
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
454 except OSError:
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
455 # The unlink might have failed due to some very rude AV-Scanners.
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
456 # Leaking a tempfile is the lesser evil than aborting here and
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
457 # leaving some potentially serious inconsistencies.
a2f0fdb1e488 win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents: 13775
diff changeset
458 pass
13795
43b5fe18ea6c set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13776
diff changeset
459
43b5fe18ea6c set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13776
diff changeset
460 def makedir(path, notindexed):
43b5fe18ea6c set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13776
diff changeset
461 os.mkdir(path)
43b5fe18ea6c set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13776
diff changeset
462 if notindexed:
43b5fe18ea6c set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13776
diff changeset
463 _kernel32.SetFileAttributesA(path, _FILE_ATTRIBUTE_NOT_CONTENT_INDEXED)