Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/util_win32.py @ 2176:9b42304d9896

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fix file handling bugs on windows. add util.posixfile class that has posix semantics on windows. fix util.rename so it works with stupid windows delete semantics.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Tue, 02 May 2006 14:30:00 -0700
parents 760339ccc799
children caf2c6ef5b0e
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2054
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1 # util_win32.py - utility functions that use win32 API
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2 #
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com>
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4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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5 #
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6 # This software may be used and distributed according to the terms of
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7 # the GNU General Public License, incorporated herein by reference.
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8
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9 # Mark Hammond's win32all package allows better functionality on
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10 # Windows. this module overrides definitions in util.py. if not
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11 # available, import of this module will fail, and generic code will be
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12 # used.
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13
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14 import win32api
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15
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16 from demandload import *
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17 from i18n import gettext as _
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18 demandload(globals(), 'errno os pywintypes win32con win32file win32process')
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19 demandload(globals(), 'cStringIO winerror')
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20
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21 class WinError:
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22 winerror_map = {
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23 winerror.ERROR_ACCESS_DENIED: errno.EACCES,
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24 winerror.ERROR_ACCOUNT_DISABLED: errno.EACCES,
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25 winerror.ERROR_ACCOUNT_RESTRICTION: errno.EACCES,
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26 winerror.ERROR_ALREADY_ASSIGNED: errno.EBUSY,
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27 winerror.ERROR_ALREADY_EXISTS: errno.EEXIST,
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28 winerror.ERROR_ARITHMETIC_OVERFLOW: errno.ERANGE,
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29 winerror.ERROR_BAD_COMMAND: errno.EIO,
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30 winerror.ERROR_BAD_DEVICE: errno.ENODEV,
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31 winerror.ERROR_BAD_DRIVER_LEVEL: errno.ENXIO,
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32 winerror.ERROR_BAD_EXE_FORMAT: errno.ENOEXEC,
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33 winerror.ERROR_BAD_FORMAT: errno.ENOEXEC,
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34 winerror.ERROR_BAD_LENGTH: errno.EINVAL,
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35 winerror.ERROR_BAD_PATHNAME: errno.ENOENT,
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36 winerror.ERROR_BAD_PIPE: errno.EPIPE,
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37 winerror.ERROR_BAD_UNIT: errno.ENODEV,
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38 winerror.ERROR_BAD_USERNAME: errno.EINVAL,
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39 winerror.ERROR_BROKEN_PIPE: errno.EPIPE,
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40 winerror.ERROR_BUFFER_OVERFLOW: errno.ENAMETOOLONG,
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41 winerror.ERROR_BUSY: errno.EBUSY,
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42 winerror.ERROR_BUSY_DRIVE: errno.EBUSY,
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43 winerror.ERROR_CALL_NOT_IMPLEMENTED: errno.ENOSYS,
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44 winerror.ERROR_CANNOT_MAKE: errno.EACCES,
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45 winerror.ERROR_CANTOPEN: errno.EIO,
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46 winerror.ERROR_CANTREAD: errno.EIO,
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47 winerror.ERROR_CANTWRITE: errno.EIO,
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48 winerror.ERROR_CRC: errno.EIO,
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49 winerror.ERROR_CURRENT_DIRECTORY: errno.EACCES,
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50 winerror.ERROR_DEVICE_IN_USE: errno.EBUSY,
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51 winerror.ERROR_DEV_NOT_EXIST: errno.ENODEV,
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52 winerror.ERROR_DIRECTORY: errno.EINVAL,
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53 winerror.ERROR_DIR_NOT_EMPTY: errno.ENOTEMPTY,
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54 winerror.ERROR_DISK_CHANGE: errno.EIO,
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55 winerror.ERROR_DISK_FULL: errno.ENOSPC,
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56 winerror.ERROR_DRIVE_LOCKED: errno.EBUSY,
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57 winerror.ERROR_ENVVAR_NOT_FOUND: errno.EINVAL,
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58 winerror.ERROR_EXE_MARKED_INVALID: errno.ENOEXEC,
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59 winerror.ERROR_FILENAME_EXCED_RANGE: errno.ENAMETOOLONG,
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60 winerror.ERROR_FILE_EXISTS: errno.EEXIST,
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61 winerror.ERROR_FILE_INVALID: errno.ENODEV,
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62 winerror.ERROR_FILE_NOT_FOUND: errno.ENOENT,
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63 winerror.ERROR_GEN_FAILURE: errno.EIO,
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64 winerror.ERROR_HANDLE_DISK_FULL: errno.ENOSPC,
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65 winerror.ERROR_INSUFFICIENT_BUFFER: errno.ENOMEM,
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66 winerror.ERROR_INVALID_ACCESS: errno.EACCES,
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67 winerror.ERROR_INVALID_ADDRESS: errno.EFAULT,
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68 winerror.ERROR_INVALID_BLOCK: errno.EFAULT,
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69 winerror.ERROR_INVALID_DATA: errno.EINVAL,
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70 winerror.ERROR_INVALID_DRIVE: errno.ENODEV,
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71 winerror.ERROR_INVALID_EXE_SIGNATURE: errno.ENOEXEC,
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72 winerror.ERROR_INVALID_FLAGS: errno.EINVAL,
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73 winerror.ERROR_INVALID_FUNCTION: errno.ENOSYS,
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74 winerror.ERROR_INVALID_HANDLE: errno.EBADF,
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75 winerror.ERROR_INVALID_LOGON_HOURS: errno.EACCES,
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76 winerror.ERROR_INVALID_NAME: errno.EINVAL,
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77 winerror.ERROR_INVALID_OWNER: errno.EINVAL,
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78 winerror.ERROR_INVALID_PARAMETER: errno.EINVAL,
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79 winerror.ERROR_INVALID_PASSWORD: errno.EPERM,
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80 winerror.ERROR_INVALID_PRIMARY_GROUP: errno.EINVAL,
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81 winerror.ERROR_INVALID_SIGNAL_NUMBER: errno.EINVAL,
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82 winerror.ERROR_INVALID_TARGET_HANDLE: errno.EIO,
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83 winerror.ERROR_INVALID_WORKSTATION: errno.EACCES,
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84 winerror.ERROR_IO_DEVICE: errno.EIO,
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85 winerror.ERROR_IO_INCOMPLETE: errno.EINTR,
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86 winerror.ERROR_LOCKED: errno.EBUSY,
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87 winerror.ERROR_LOCK_VIOLATION: errno.EACCES,
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88 winerror.ERROR_LOGON_FAILURE: errno.EACCES,
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89 winerror.ERROR_MAPPED_ALIGNMENT: errno.EINVAL,
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90 winerror.ERROR_META_EXPANSION_TOO_LONG: errno.E2BIG,
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91 winerror.ERROR_MORE_DATA: errno.EPIPE,
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92 winerror.ERROR_NEGATIVE_SEEK: errno.ESPIPE,
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93 winerror.ERROR_NOACCESS: errno.EFAULT,
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94 winerror.ERROR_NONE_MAPPED: errno.EINVAL,
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95 winerror.ERROR_NOT_ENOUGH_MEMORY: errno.ENOMEM,
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96 winerror.ERROR_NOT_READY: errno.EAGAIN,
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97 winerror.ERROR_NOT_SAME_DEVICE: errno.EXDEV,
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98 winerror.ERROR_NO_DATA: errno.EPIPE,
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99 winerror.ERROR_NO_MORE_SEARCH_HANDLES: errno.EIO,
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100 winerror.ERROR_NO_PROC_SLOTS: errno.EAGAIN,
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101 winerror.ERROR_NO_SUCH_PRIVILEGE: errno.EACCES,
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102 winerror.ERROR_OPEN_FAILED: errno.EIO,
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103 winerror.ERROR_OPEN_FILES: errno.EBUSY,
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104 winerror.ERROR_OPERATION_ABORTED: errno.EINTR,
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105 winerror.ERROR_OUTOFMEMORY: errno.ENOMEM,
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106 winerror.ERROR_PASSWORD_EXPIRED: errno.EACCES,
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107 winerror.ERROR_PATH_BUSY: errno.EBUSY,
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108 winerror.ERROR_PATH_NOT_FOUND: errno.ENOENT,
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109 winerror.ERROR_PIPE_BUSY: errno.EBUSY,
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110 winerror.ERROR_PIPE_CONNECTED: errno.EPIPE,
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111 winerror.ERROR_PIPE_LISTENING: errno.EPIPE,
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112 winerror.ERROR_PIPE_NOT_CONNECTED: errno.EPIPE,
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113 winerror.ERROR_PRIVILEGE_NOT_HELD: errno.EACCES,
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114 winerror.ERROR_READ_FAULT: errno.EIO,
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115 winerror.ERROR_SEEK: errno.EIO,
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116 winerror.ERROR_SEEK_ON_DEVICE: errno.ESPIPE,
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117 winerror.ERROR_SHARING_BUFFER_EXCEEDED: errno.ENFILE,
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118 winerror.ERROR_SHARING_VIOLATION: errno.EACCES,
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119 winerror.ERROR_STACK_OVERFLOW: errno.ENOMEM,
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120 winerror.ERROR_SWAPERROR: errno.ENOENT,
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121 winerror.ERROR_TOO_MANY_MODULES: errno.EMFILE,
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122 winerror.ERROR_TOO_MANY_OPEN_FILES: errno.EMFILE,
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123 winerror.ERROR_UNRECOGNIZED_MEDIA: errno.ENXIO,
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124 winerror.ERROR_UNRECOGNIZED_VOLUME: errno.ENODEV,
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
125 winerror.ERROR_WAIT_NO_CHILDREN: errno.ECHILD,
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
126 winerror.ERROR_WRITE_FAULT: errno.EIO,
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
127 winerror.ERROR_WRITE_PROTECT: errno.EROFS,
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
128 }
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
129
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
130 def __init__(self, err):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
131 self.win_errno, self.win_function, self.win_strerror = err
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
132 if self.win_strerror.endswith('.'):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
133 self.win_strerror = self.win_strerror[:-1]
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
134
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
135 class WinIOError(WinError, IOError):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
136 def __init__(self, err, filename=None):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
137 WinError.__init__(self, err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
138 IOError.__init__(self, self.winerror_map.get(self.win_errno, 0),
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
139 self.win_strerror)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
140 self.filename = filename
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
141
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
142 class WinOSError(WinError, OSError):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
143 def __init__(self, err):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
144 WinError.__init__(self, err)
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
145 OSError.__init__(self, self.winerror_map.get(self.win_errno, 0),
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
146 self.win_strerror)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
147
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
148 def os_link(src, dst):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
149 # NB will only succeed on NTFS
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
150 try:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
151 win32file.CreateHardLink(dst, src)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
152 except pywintypes.error, details:
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
153 raise WinOSError(details)
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
154
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
155 def nlinks(pathname):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
156 """Return number of hardlinks for the given file."""
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
157 try:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
158 fh = win32file.CreateFile(pathname,
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
159 win32file.GENERIC_READ, win32file.FILE_SHARE_READ,
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
160 None, win32file.OPEN_EXISTING, 0, None)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
161 res = win32file.GetFileInformationByHandle(fh)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
162 fh.Close()
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
163 return res[7]
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
164 except pywintypes.error:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
165 return os.stat(pathname).st_nlink
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
166
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
167 def testpid(pid):
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
168 '''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
169 determine, False otherwise'''
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
170 try:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
171 handle = win32api.OpenProcess(
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
172 win32con.PROCESS_QUERY_INFORMATION, False, pid)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
173 if handle:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
174 status = win32process.GetExitCodeProcess(handle)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
175 return status == win32con.STILL_ACTIVE
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
176 except pywintypes.error, details:
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
177 return details[0] != winerror.ERROR_INVALID_PARAMETER
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
178 return True
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
179
2117
760339ccc799 fix issue 217.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2054
diff changeset
180 def system_rcpath_win32():
2054
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
181 '''return default os-specific hgrc search path'''
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
182 proc = win32api.GetCurrentProcess()
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
183 filename = win32process.GetModuleFileNameEx(proc, 0)
e18beba54a7e fix exception handling on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
184 return [os.path.join(os.path.dirname(filename), 'mercurial.ini')]
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
185
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
186 class posixfile(object):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
187 '''file object with posix-like semantics. on windows, normal
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
188 files can not be deleted or renamed if they are open. must open
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
189 with win32file.FILE_SHARE_DELETE. this flag does not exist on
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
190 windows <= nt.'''
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
191
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
192 # tried to use win32file._open_osfhandle to pass fd to os.fdopen,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
193 # but does not work at all. wrap win32 file api instead.
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
194
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
195 def __init__(self, name, mode='rb'):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
196 access = 0
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
197 if 'r' in mode or '+' in mode:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
198 access |= win32file.GENERIC_READ
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
199 if 'w' in mode or 'a' in mode:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
200 access |= win32file.GENERIC_WRITE
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
201 if 'r' in mode:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
202 creation = win32file.OPEN_EXISTING
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
203 elif 'a' in mode:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
204 creation = win32file.OPEN_ALWAYS
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
205 else:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
206 creation = win32file.CREATE_ALWAYS
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
207 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
208 self.handle = win32file.CreateFile(name,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
209 access,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
210 win32file.FILE_SHARE_READ |
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
211 win32file.FILE_SHARE_WRITE |
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
212 win32file.FILE_SHARE_DELETE,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
213 None,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
214 creation,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
215 win32file.FILE_ATTRIBUTE_NORMAL,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
216 0)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
217 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
218 raise WinIOError(err, name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
219 self.closed = False
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
220 self.name = name
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
221 self.mode = mode
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
222
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
223 def read(self, count=-1):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
224 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
225 cs = cStringIO.StringIO()
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
226 while count:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
227 wincount = int(count)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
228 if wincount == -1:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
229 wincount = 1048576
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
230 val, data = win32file.ReadFile(self.handle, wincount)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
231 if not data: break
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
232 cs.write(data)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
233 if count != -1:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
234 count -= len(data)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
235 return cs.getvalue()
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
236 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
237 raise WinIOError(err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
238
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
239 def write(self, data):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
240 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
241 if 'a' in self.mode:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
242 win32file.SetFilePointer(self.handle, 0, win32file.FILE_END)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
243 nwrit = 0
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
244 while nwrit < len(data):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
245 val, nwrit = win32file.WriteFile(self.handle, data)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
246 data = data[nwrit:]
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
247 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
248 raise WinIOError(err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
249
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
250 def seek(self, pos, whence=0):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
251 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
252 win32file.SetFilePointer(self.handle, int(pos), whence)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
253 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
254 raise WinIOError(err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
255
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
256 def tell(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
257 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
258 return win32file.SetFilePointer(self.handle, 0,
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
259 win32file.FILE_CURRENT)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
260 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
261 raise WinIOError(err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
262
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
263 def close(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
264 if not self.closed:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
265 self.handle = None
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
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266 self.closed = True
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
267
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
268 def flush(self):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
269 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
270 win32file.FlushFileBuffers(self.handle)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
271 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
272 raise WinIOError(err)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
273
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
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274 def truncate(self, pos=0):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
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275 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
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276 win32file.SetFilePointer(self.handle, int(pos),
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
277 win32file.FILE_BEGIN)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
278 win32file.SetEndOfFile(self.handle)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
279 except pywintypes.error, err:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
280 raise WinIOError(err)