Mercurial > hg
annotate mercurial/util_win32.py @ 6404:f08662abdf3f
merge with crew
author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
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date | Sat, 29 Mar 2008 21:15:54 +0100 |
parents | a88259018f79 |
children | 892806b3fc0f |
rev | line source |
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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 |
6216 | 16 import errno, os, sys, pywintypes, win32con, win32file, win32process |
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17 import cStringIO, winerror |
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18 import osutil |
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19 from win32com.shell import shell,shellcon |
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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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125 winerror.ERROR_WAIT_NO_CHILDREN: errno.ECHILD, |
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126 winerror.ERROR_WRITE_FAULT: errno.EIO, |
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127 winerror.ERROR_WRITE_PROTECT: errno.EROFS, |
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128 } |
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129 |
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130 def __init__(self, err): |
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131 self.win_errno, self.win_function, self.win_strerror = err |
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132 if self.win_strerror.endswith('.'): |
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133 self.win_strerror = self.win_strerror[:-1] |
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134 |
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135 class WinIOError(WinError, IOError): |
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136 def __init__(self, err, filename=None): |
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137 WinError.__init__(self, err) |
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138 IOError.__init__(self, self.winerror_map.get(self.win_errno, 0), |
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139 self.win_strerror) |
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140 self.filename = filename |
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141 |
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142 class WinOSError(WinError, OSError): |
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143 def __init__(self, err): |
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144 WinError.__init__(self, err) |
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145 OSError.__init__(self, self.winerror_map.get(self.win_errno, 0), |
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146 self.win_strerror) |
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147 |
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148 def os_link(src, dst): |
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149 try: |
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150 win32file.CreateHardLink(dst, src) |
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151 # CreateHardLink sometimes succeeds on mapped drives but |
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152 # following nlinks() returns 1. Check it now and bail out. |
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153 if nlinks(src) < 2: |
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154 try: |
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155 win32file.DeleteFile(dst) |
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156 except: |
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157 pass |
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158 # Fake hardlinking error |
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159 raise WinOSError((18, 'CreateHardLink', 'The system cannot ' |
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160 'move the file to a different disk drive')) |
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161 except pywintypes.error, details: |
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162 raise WinOSError(details) |
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163 |
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164 def nlinks(pathname): |
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165 """Return number of hardlinks for the given file.""" |
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166 try: |
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167 fh = win32file.CreateFile(pathname, |
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168 win32file.GENERIC_READ, win32file.FILE_SHARE_READ, |
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169 None, win32file.OPEN_EXISTING, 0, None) |
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170 res = win32file.GetFileInformationByHandle(fh) |
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171 fh.Close() |
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172 return res[7] |
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173 except pywintypes.error: |
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174 return os.lstat(pathname).st_nlink |
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175 |
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176 def testpid(pid): |
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177 '''return True if pid is still running or unable to |
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178 determine, False otherwise''' |
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179 try: |
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180 handle = win32api.OpenProcess( |
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181 win32con.PROCESS_QUERY_INFORMATION, False, pid) |
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182 if handle: |
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183 status = win32process.GetExitCodeProcess(handle) |
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184 return status == win32con.STILL_ACTIVE |
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185 except pywintypes.error, details: |
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186 return details[0] != winerror.ERROR_INVALID_PARAMETER |
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187 return True |
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188 |
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189 def lookup_reg(key, valname=None, scope=None): |
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190 ''' Look up a key/value name in the Windows registry. |
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191 |
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192 valname: value name. If unspecified, the default value for the key |
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193 is used. |
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194 scope: optionally specify scope for registry lookup, this can be |
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195 a sequence of scopes to look up in order. Default (CURRENT_USER, |
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196 LOCAL_MACHINE). |
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197 ''' |
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198 try: |
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199 from _winreg import HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, \ |
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200 QueryValueEx, OpenKey |
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201 except ImportError: |
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202 return None |
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203 |
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204 def query_val(scope, key, valname): |
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205 try: |
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206 keyhandle = OpenKey(scope, key) |
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207 return QueryValueEx(keyhandle, valname)[0] |
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208 except EnvironmentError: |
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209 return None |
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210 |
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211 if scope is None: |
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212 scope = (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE) |
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213 elif not isinstance(scope, (list, tuple)): |
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214 scope = (scope,) |
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215 for s in scope: |
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216 val = query_val(s, key, valname) |
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217 if val is not None: |
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218 return val |
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219 |
2117 | 220 def system_rcpath_win32(): |
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221 '''return default os-specific hgrc search path''' |
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222 proc = win32api.GetCurrentProcess() |
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223 try: |
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224 # This will fail on windows < NT |
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225 filename = win32process.GetModuleFileNameEx(proc, 0) |
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226 except: |
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227 filename = win32api.GetModuleFileName(0) |
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228 # Use mercurial.ini found in directory with hg.exe |
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229 progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini') |
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230 if os.path.isfile(progrc): |
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231 return [progrc] |
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232 # else look for a system rcpath in the registry |
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233 try: |
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234 value = win32api.RegQueryValue( |
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235 win32con.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Mercurial') |
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236 rcpath = [] |
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237 for p in value.split(os.pathsep): |
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238 if p.lower().endswith('mercurial.ini'): |
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239 rcpath.append(p) |
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240 elif os.path.isdir(p): |
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241 for f, kind in osutil.listdir(p): |
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242 if f.endswith('.rc'): |
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243 rcpath.append(os.path.join(p, f)) |
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244 return rcpath |
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245 except pywintypes.error: |
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246 return [] |
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247 |
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248 def user_rcpath_win32(): |
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249 '''return os-specific hgrc search path to the user dir''' |
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250 userdir = os.path.expanduser('~') |
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251 if sys.getwindowsversion() != 2 and userdir == '~': |
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252 # We are on win < nt: fetch the APPDATA directory location and use |
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253 # the parent directory as the user home dir. |
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254 appdir = shell.SHGetPathFromIDList( |
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255 shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA)) |
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256 userdir = os.path.dirname(appdir) |
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257 return [os.path.join(userdir, 'mercurial.ini'), |
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258 os.path.join(userdir, '.hgrc')] |
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259 |
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260 class posixfile_nt(object): |
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261 '''file object with posix-like semantics. on windows, normal |
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262 files can not be deleted or renamed if they are open. must open |
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263 with win32file.FILE_SHARE_DELETE. this flag does not exist on |
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264 windows < nt, so do not use this class there.''' |
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265 |
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266 # tried to use win32file._open_osfhandle to pass fd to os.fdopen, |
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267 # but does not work at all. wrap win32 file api instead. |
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268 |
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269 def __init__(self, name, mode='rb'): |
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270 self.closed = False |
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271 self.name = name |
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272 self.mode = mode |
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273 access = 0 |
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274 if 'r' in mode or '+' in mode: |
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275 access |= win32file.GENERIC_READ |
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276 if 'w' in mode or 'a' in mode or '+' in mode: |
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277 access |= win32file.GENERIC_WRITE |
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278 if 'r' in mode: |
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279 creation = win32file.OPEN_EXISTING |
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280 elif 'a' in mode: |
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281 creation = win32file.OPEN_ALWAYS |
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282 else: |
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283 creation = win32file.CREATE_ALWAYS |
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284 try: |
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285 self.handle = win32file.CreateFile(name, |
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286 access, |
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287 win32file.FILE_SHARE_READ | |
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288 win32file.FILE_SHARE_WRITE | |
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289 win32file.FILE_SHARE_DELETE, |
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290 None, |
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291 creation, |
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292 win32file.FILE_ATTRIBUTE_NORMAL, |
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293 0) |
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|
294 except pywintypes.error, err: |
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295 raise WinIOError(err, name) |
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296 |
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297 def __iter__(self): |
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298 for line in self.read().splitlines(True): |
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299 yield line |
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300 |
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301 def read(self, count=-1): |
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302 try: |
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303 cs = cStringIO.StringIO() |
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|
304 while count: |
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|
305 wincount = int(count) |
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|
306 if wincount == -1: |
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307 wincount = 1048576 |
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|
308 val, data = win32file.ReadFile(self.handle, wincount) |
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|
309 if not data: break |
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|
310 cs.write(data) |
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311 if count != -1: |
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312 count -= len(data) |
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313 return cs.getvalue() |
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314 except pywintypes.error, err: |
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315 raise WinIOError(err) |
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316 |
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317 def write(self, data): |
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318 try: |
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319 if 'a' in self.mode: |
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320 win32file.SetFilePointer(self.handle, 0, win32file.FILE_END) |
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321 nwrit = 0 |
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322 while nwrit < len(data): |
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323 val, nwrit = win32file.WriteFile(self.handle, data) |
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324 data = data[nwrit:] |
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325 except pywintypes.error, err: |
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326 raise WinIOError(err) |
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327 |
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328 def writelines(self, sequence): |
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329 for s in sequence: |
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330 self.write(s) |
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331 |
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332 def seek(self, pos, whence=0): |
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333 try: |
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334 win32file.SetFilePointer(self.handle, int(pos), whence) |
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335 except pywintypes.error, err: |
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336 raise WinIOError(err) |
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337 |
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338 def tell(self): |
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339 try: |
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340 return win32file.SetFilePointer(self.handle, 0, |
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341 win32file.FILE_CURRENT) |
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342 except pywintypes.error, err: |
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343 raise WinIOError(err) |
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344 |
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345 def close(self): |
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346 if not self.closed: |
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347 self.handle = None |
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348 self.closed = True |
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349 |
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350 def flush(self): |
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351 # we have no application-level buffering |
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352 pass |
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353 |
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354 def truncate(self, pos=0): |
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355 try: |
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356 win32file.SetFilePointer(self.handle, int(pos), |
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357 win32file.FILE_BEGIN) |
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358 win32file.SetEndOfFile(self.handle) |
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359 except pywintypes.error, err: |
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360 raise WinIOError(err) |
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361 |
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362 getuser_fallback = win32api.GetUserName |
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363 |
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364 def set_signal_handler_win32(): |
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365 """Register a termination handler for console events including |
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366 CTRL+C. python signal handlers do not work well with socket |
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367 operations. |
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368 """ |
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369 def handler(event): |
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370 win32process.ExitProcess(1) |
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371 win32api.SetConsoleCtrlHandler(handler) |