annotate mercurial/pure/osutil.py @ 48946:642e31cb55f0

py3: use class X: instead of class X(object): The inheritance from object is implied in Python 3. So this should be equivalent. This change was generated via an automated search and replace. So there may have been some accidental changes. Differential Revision: https://phab.mercurial-scm.org/D12352
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 21 Feb 2022 13:08:28 -0700
parents 6000f5b25c9b
children c6a3243567b6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8232
823f25b25dea pure/osutil: add copyright and license header
Martin Geisler <mg@lazybytes.net>
parents: 7704
diff changeset
1 # osutil.py - pure Python version of osutil.c
823f25b25dea pure/osutil: add copyright and license header
Martin Geisler <mg@lazybytes.net>
parents: 7704
diff changeset
2 #
46819
d4ba4d51f85f contributor: change mentions of mpm to olivia
Rapha?l Gom?s <rgomes@octobus.net>
parents: 46786
diff changeset
3 # Copyright 2009 Olivia Mackall <olivia@selenic.com> and others
8232
823f25b25dea pure/osutil: add copyright and license header
Martin Geisler <mg@lazybytes.net>
parents: 7704
diff changeset
4 #
823f25b25dea pure/osutil: add copyright and license header
Martin Geisler <mg@lazybytes.net>
parents: 7704
diff changeset
5 # This software may be used and distributed according to the terms of the
10263
25e572394f5c Update license to GPLv2+
Matt Mackall <mpm@selenic.com>
parents: 9031
diff changeset
6 # GNU General Public License version 2 or any later version.
8232
823f25b25dea pure/osutil: add copyright and license header
Martin Geisler <mg@lazybytes.net>
parents: 7704
diff changeset
7
27338
810337ae1b76 osutil: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25645
diff changeset
8
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
9 import ctypes
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
10 import ctypes.util
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
11 import os
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
12 import socket
10651
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
13 import stat as statmod
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
14
43089
c59eb1560c44 py3: manually import getattr where it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents: 43077
diff changeset
15 from ..pycompat import getattr
32367
a9c71d578a1c osutil: switch to policy importer
Yuya Nishihara <yuya@tcha.org>
parents: 31644
diff changeset
16 from .. import (
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
17 encoding,
30304
ba2c04059317 py3: use pycompat.ossep at certain places
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29821
diff changeset
18 pycompat,
ba2c04059317 py3: use pycompat.ossep at certain places
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29821
diff changeset
19 )
ba2c04059317 py3: use pycompat.ossep at certain places
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29821
diff changeset
20
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
21
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
22 def _mode_to_kind(mode):
10651
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
23 if statmod.S_ISREG(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
24 return statmod.S_IFREG
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
25 if statmod.S_ISDIR(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
26 return statmod.S_IFDIR
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
27 if statmod.S_ISLNK(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
28 return statmod.S_IFLNK
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
29 if statmod.S_ISBLK(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
30 return statmod.S_IFBLK
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
31 if statmod.S_ISCHR(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
32 return statmod.S_IFCHR
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
33 if statmod.S_ISFIFO(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
34 return statmod.S_IFIFO
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
35 if statmod.S_ISSOCK(mode):
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
36 return statmod.S_IFSOCK
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
37 return mode
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
38
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
39
32512
0e8b0b9a7acc cffi: split modules from pure
Yuya Nishihara <yuya@tcha.org>
parents: 32506
diff changeset
40 def listdir(path, stat=False, skip=None):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
41 """listdir(path, stat=False) -> list_of_tuples
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
42
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
43 Return a sorted list containing information about the entries
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
44 in the directory.
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
45
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
46 If stat is True, each element is a 3-tuple:
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
47
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
48 (name, type, stat object)
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
49
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
50 Otherwise, each element is a 2-tuple:
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
51
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
52 (name, type)
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
53 """
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
54 result = []
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
55 prefix = path
30304
ba2c04059317 py3: use pycompat.ossep at certain places
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29821
diff changeset
56 if not prefix.endswith(pycompat.ossep):
ba2c04059317 py3: use pycompat.ossep at certain places
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29821
diff changeset
57 prefix += pycompat.ossep
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
58 names = os.listdir(path)
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
59 names.sort()
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
60 for fn in names:
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
61 st = os.lstat(prefix + fn)
10651
5f091fc1bab7 style: use consistent variable names (*mod) with imports which would shadow
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10282
diff changeset
62 if fn == skip and statmod.S_ISDIR(st.st_mode):
7704
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
63 return []
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
64 if stat:
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
65 result.append((fn, _mode_to_kind(st.st_mode), st))
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
66 else:
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
67 result.append((fn, _mode_to_kind(st.st_mode)))
30d1d313370b move mercurial.osutil to mercurial.pure.osutil
Martin Geisler <mg@daimi.au.dk>
parents:
diff changeset
68 return result
8421
b6d0fa8c7685 posixfile: remove posixfile_nt and fix import bug in windows.py
Sune Foldager <cryo@cyanite.org>
parents: 8232
diff changeset
69
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
70
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 32512
diff changeset
71 if not pycompat.iswindows:
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
72 posixfile = open
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
73
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
74 _SCM_RIGHTS = 0x01
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
75 _socklen_t = ctypes.c_uint
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
76
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
77 if pycompat.sysplatform.startswith(b'linux'):
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
78 # socket.h says "the type should be socklen_t but the definition of
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
79 # the kernel is incompatible with this."
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
80 _cmsg_len_t = ctypes.c_size_t
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
81 _msg_controllen_t = ctypes.c_size_t
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
82 _msg_iovlen_t = ctypes.c_size_t
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
83 else:
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
84 _cmsg_len_t = _socklen_t
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
85 _msg_controllen_t = _socklen_t
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
86 _msg_iovlen_t = ctypes.c_int
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
87
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
88 class _iovec(ctypes.Structure):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
89 _fields_ = [
29698
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
90 (u'iov_base', ctypes.c_void_p),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
91 (u'iov_len', ctypes.c_size_t),
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
92 ]
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
93
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
94 class _msghdr(ctypes.Structure):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
95 _fields_ = [
29698
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
96 (u'msg_name', ctypes.c_void_p),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
97 (u'msg_namelen', _socklen_t),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
98 (u'msg_iov', ctypes.POINTER(_iovec)),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
99 (u'msg_iovlen', _msg_iovlen_t),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
100 (u'msg_control', ctypes.c_void_p),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
101 (u'msg_controllen', _msg_controllen_t),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
102 (u'msg_flags', ctypes.c_int),
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
103 ]
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
104
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
105 class _cmsghdr(ctypes.Structure):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
106 _fields_ = [
29698
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
107 (u'cmsg_len', _cmsg_len_t),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
108 (u'cmsg_level', ctypes.c_int),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
109 (u'cmsg_type', ctypes.c_int),
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
110 (u'cmsg_data', ctypes.c_ubyte * 0),
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
111 ]
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
112
29698
f15f31505f12 py3: use unicode literals in pure/osutil.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29600
diff changeset
113 _libc = ctypes.CDLL(ctypes.util.find_library(u'c'), use_errno=True)
27971
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
114 _recvmsg = getattr(_libc, 'recvmsg', None)
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
115 if _recvmsg:
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
116 _recvmsg.restype = getattr(ctypes, 'c_ssize_t', ctypes.c_long)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
117 _recvmsg.argtypes = (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
118 ctypes.c_int,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
119 ctypes.POINTER(_msghdr),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
120 ctypes.c_int,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
121 )
27971
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
122 else:
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
123 # recvmsg isn't always provided by libc; such systems are unsupported
f7d0c28d34b3 osutil: do not abort loading pure module just because libc has no recvmsg()
Yuya Nishihara <yuya@tcha.org>
parents: 27704
diff changeset
124 def _recvmsg(sockfd, msg, flags):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
125 raise NotImplementedError(b'unsupported platform')
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
126
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
127 def _CMSG_FIRSTHDR(msgh):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
128 if msgh.msg_controllen < ctypes.sizeof(_cmsghdr):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
129 return
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
130 cmsgptr = ctypes.cast(msgh.msg_control, ctypes.POINTER(_cmsghdr))
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
131 return cmsgptr.contents
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
132
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
133 # The pure version is less portable than the native version because the
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
134 # handling of socket ancillary data heavily depends on C preprocessor.
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
135 # Also, some length fields are wrongly typed in Linux kernel.
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
136 def recvfds(sockfd):
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
137 """receive list of file descriptors via socket"""
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
138 dummy = (ctypes.c_ubyte * 1)()
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
139 iov = _iovec(ctypes.cast(dummy, ctypes.c_void_p), ctypes.sizeof(dummy))
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
140 cbuf = ctypes.create_string_buffer(256)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
141 msgh = _msghdr(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
142 None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
143 0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
144 ctypes.pointer(iov),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
145 1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
146 ctypes.cast(cbuf, ctypes.c_void_p),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
147 ctypes.sizeof(cbuf),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
148 0,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
149 )
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
150 r = _recvmsg(sockfd, ctypes.byref(msgh), 0)
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
151 if r < 0:
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
152 e = ctypes.get_errno()
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
153 raise OSError(e, os.strerror(e))
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
154 # assumes that the first cmsg has fds because it isn't easy to write
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
155 # portable CMSG_NXTHDR() with ctypes.
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
156 cmsg = _CMSG_FIRSTHDR(msgh)
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
157 if not cmsg:
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
158 return []
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
159 if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
160 cmsg.cmsg_level != socket.SOL_SOCKET
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
161 or cmsg.cmsg_type != _SCM_RIGHTS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
162 ):
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
163 return []
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
164 rfds = ctypes.cast(cmsg.cmsg_data, ctypes.POINTER(ctypes.c_int))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
165 rfdscount = (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
166 cmsg.cmsg_len - _cmsghdr.cmsg_data.offset
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
167 ) // ctypes.sizeof(ctypes.c_int)
38783
e7aa113b14f7 global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34645
diff changeset
168 return [rfds[i] for i in pycompat.xrange(rfdscount)]
27474
e517a89c24e1 osutil: implement pure version of recvfds() for PyPy
Yuya Nishihara <yuya@tcha.org>
parents: 27338
diff changeset
169
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
170
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
171 else:
27338
810337ae1b76 osutil: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25645
diff changeset
172 import msvcrt
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
173
46786
52528570312e typing: disable module attribute warnings for properly conditionalized code
Matt Harbison <matt_harbison@yahoo.com>
parents: 45942
diff changeset
174 _kernel32 = ctypes.windll.kernel32 # pytype: disable=module-attr
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
175
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
176 _DWORD = ctypes.c_ulong
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
177 _LPCSTR = _LPSTR = ctypes.c_char_p
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
178 _HANDLE = ctypes.c_void_p
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
179
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
180 _INVALID_HANDLE_VALUE = _HANDLE(-1).value
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
181
18959
2f6418d8a4c9 check-code: catch trailing space in comments
Mads Kiilerich <madski@unity3d.com>
parents: 17429
diff changeset
182 # CreateFile
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
183 _FILE_SHARE_READ = 0x00000001
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
184 _FILE_SHARE_WRITE = 0x00000002
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
185 _FILE_SHARE_DELETE = 0x00000004
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
186
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
187 _CREATE_ALWAYS = 2
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
188 _OPEN_EXISTING = 3
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
189 _OPEN_ALWAYS = 4
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
190
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
191 _GENERIC_READ = 0x80000000
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
192 _GENERIC_WRITE = 0x40000000
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
193
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
194 _FILE_ATTRIBUTE_NORMAL = 0x80
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
195
17429
72fa4ef2245f declare local constants instead of using magic values and comments
Mads Kiilerich <mads@kiilerich.com>
parents: 16686
diff changeset
196 # open_osfhandle flags
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
197 _O_RDONLY = 0x0000
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
198 _O_RDWR = 0x0002
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
199 _O_APPEND = 0x0008
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
200
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
201 _O_TEXT = 0x4000
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
202 _O_BINARY = 0x8000
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
203
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
204 # types of parameters of C functions used (required by pypy)
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
205
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
206 _kernel32.CreateFileA.argtypes = [
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
207 _LPCSTR,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
208 _DWORD,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
209 _DWORD,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
210 ctypes.c_void_p,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
211 _DWORD,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
212 _DWORD,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
213 _HANDLE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
214 ]
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
215 _kernel32.CreateFileA.restype = _HANDLE
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
216
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
217 def _raiseioerror(name):
46786
52528570312e typing: disable module attribute warnings for properly conditionalized code
Matt Harbison <matt_harbison@yahoo.com>
parents: 45942
diff changeset
218 err = ctypes.WinError() # pytype: disable=module-attr
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
219 raise IOError(
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43503
diff changeset
220 err.errno, '%s: %s' % (encoding.strfromlocal(name), err.strerror)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
221 )
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
222
48946
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
223 class posixfile:
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
224 """a file object aiming for POSIX-like semantics
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
225
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
226 CPython's open() returns a file that was opened *without* setting the
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
227 _FILE_SHARE_DELETE flag, which causes rename and unlink to abort.
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
228 This even happens if any hardlinked copy of the file is in open state.
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
229 We set _FILE_SHARE_DELETE here, so files opened with posixfile can be
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
230 renamed and deleted while they are held open.
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
231 Note that if a file opened with posixfile is unlinked, the file
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
232 remains but cannot be opened again or be recreated under the same name,
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
233 until all reading processes have closed the file."""
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
234
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
235 def __init__(self, name, mode=b'r', bufsize=-1):
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
236 if b'b' in mode:
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
237 flags = _O_BINARY
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
238 else:
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
239 flags = _O_TEXT
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
240
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
241 m0 = mode[0:1]
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
242 if m0 == b'r' and b'+' not in mode:
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
243 flags |= _O_RDONLY
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
244 access = _GENERIC_READ
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
245 else:
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
246 # work around http://support.microsoft.com/kb/899149 and
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
247 # set _O_RDWR for 'w' and 'a', even if mode has no '+'
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
248 flags |= _O_RDWR
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
249 access = _GENERIC_READ | _GENERIC_WRITE
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
250
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
251 if m0 == b'r':
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
252 creation = _OPEN_EXISTING
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
253 elif m0 == b'w':
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
254 creation = _CREATE_ALWAYS
39644
3b421154d2ca py3: fix str vs bytes in enough places to run `hg version` on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 38783
diff changeset
255 elif m0 == b'a':
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
256 creation = _OPEN_ALWAYS
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
257 flags |= _O_APPEND
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
258 else:
43503
313e3a279828 cleanup: remove pointless r-prefixes on double-quoted strings
Augie Fackler <augie@google.com>
parents: 43089
diff changeset
259 raise ValueError("invalid mode: %s" % pycompat.sysstr(mode))
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
260
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
261 fh = _kernel32.CreateFileA(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
262 name,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
263 access,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
264 _FILE_SHARE_READ | _FILE_SHARE_WRITE | _FILE_SHARE_DELETE,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
265 None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
266 creation,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
267 _FILE_ATTRIBUTE_NORMAL,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
268 None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42524
diff changeset
269 )
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
270 if fh == _INVALID_HANDLE_VALUE:
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
271 _raiseioerror(name)
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
272
46786
52528570312e typing: disable module attribute warnings for properly conditionalized code
Matt Harbison <matt_harbison@yahoo.com>
parents: 45942
diff changeset
273 fd = msvcrt.open_osfhandle(fh, flags) # pytype: disable=module-attr
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
274 if fd == -1:
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
275 _kernel32.CloseHandle(fh)
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
276 _raiseioerror(name)
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
277
30925
82f1ef8b4477 py3: convert the mode argument of os.fdopen to unicodes (2 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30642
diff changeset
278 f = os.fdopen(fd, pycompat.sysstr(mode), bufsize)
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
279 # unfortunately, f.name is '<fdopen>' at this point -- so we store
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
280 # the name on this wrapper. We cannot just assign to f.name,
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
281 # because that attribute is read-only.
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43503
diff changeset
282 object.__setattr__(self, 'name', name)
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43503
diff changeset
283 object.__setattr__(self, '_file', f)
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
284
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
285 def __iter__(self):
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
286 return self._file
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
287
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
288 def __getattr__(self, name):
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
289 return getattr(self._file, name)
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
290
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
291 def __setattr__(self, name, value):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
292 """mimics the read-only attributes of Python file objects
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
293 by raising 'TypeError: readonly attribute' if someone tries:
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
294 f = posixfile('foo.txt')
45941
346af7687c6f osutil: reformat triple-quoted string so black doesn't confuse itself
Augie Fackler <raf@durin42.com>
parents: 43506
diff changeset
295 f.name = 'bla'
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45941
diff changeset
296 """
14413
5ef18e28df19 pure: provide more correct implementation of posixfile for Windows
Adrian Buehlmann <adrian@cadifra.com>
parents: 10651
diff changeset
297 return self._file.__setattr__(name, value)
27704
051b0dcec98b osutil: implement __enter__ and __exit__ on posixfile
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27512
diff changeset
298
051b0dcec98b osutil: implement __enter__ and __exit__ on posixfile
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27512
diff changeset
299 def __enter__(self):
40940
120ecb17242b windows: ensure pure posixfile fd doesn't escape by entering context manager
Matt Harbison <matt_harbison@yahoo.com>
parents: 39644
diff changeset
300 self._file.__enter__()
120ecb17242b windows: ensure pure posixfile fd doesn't escape by entering context manager
Matt Harbison <matt_harbison@yahoo.com>
parents: 39644
diff changeset
301 return self
27704
051b0dcec98b osutil: implement __enter__ and __exit__ on posixfile
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27512
diff changeset
302
051b0dcec98b osutil: implement __enter__ and __exit__ on posixfile
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27512
diff changeset
303 def __exit__(self, exc_type, exc_value, exc_tb):
051b0dcec98b osutil: implement __enter__ and __exit__ on posixfile
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27512
diff changeset
304 return self._file.__exit__(exc_type, exc_value, exc_tb)