def readall( self ):
"""Reads all the data of the file until EOF."""
self.__check_not_closed()
size = _win32kernel.LARGE_INTEGER()
_win32kernel.check_io_succeed(
_win32kernel.GetFileSizeEx( self.__handle, ctypes.byref(size) ) )
return self.read( size.value )
def readall(self):
"""Reads all the data of the file until EOF."""
self.__check_not_closed()
size = _win32kernel.LARGE_INTEGER()
_win32kernel.check_io_succeed(
_win32kernel.GetFileSizeEx(self.__handle, ctypes.byref(size)))
return self.read(size.value)
def flush(self):
"""Flush pending write to disk. If file is a pipe, wait for client to read all data.
"""
self.__check_not_closed()
# Notes: FlushFileBuffers will fail if file was not open with
# GENERIC_WRITE access
if self.__writable:
_win32kernel.check_io_succeed(
_win32kernel.FlushFileBuffers(self.__handle))
def seek(self, offset, whence=SEEK_SET):
self.__check_not_closed()
seek_method = _WIN32_SEEK[whence]
new_pos = _win32kernel.LARGE_INTEGER()
_win32kernel.check_io_succeed(
_win32kernel.SetFilePointerEx(self.__handle,
_win32kernel.LARGE_INTEGER(offset),
ctypes.byref(new_pos), seek_method))
return new_pos.value
def flush( self ):
"""Flush pending write to disk. If file is a pipe, wait for client to read all data.
"""
self.__check_not_closed()
# Notes: FlushFileBuffers will fail if file was not open with
# GENERIC_WRITE access
if self.__writable:
_win32kernel.check_io_succeed(
_win32kernel.FlushFileBuffers( self.__handle ) )
def seek( self, offset, whence=SEEK_SET):
self.__check_not_closed()
seek_method = _WIN32_SEEK[whence]
new_pos = _win32kernel.LARGE_INTEGER()
_win32kernel.check_io_succeed(
_win32kernel.SetFilePointerEx( self.__handle,
_win32kernel.LARGE_INTEGER( offset ),
ctypes.byref( new_pos ),
seek_method ) )
return new_pos.value
def truncate(self, size=None):
self.__check_not_closed()
if size is not None:
self.seek(size, whence=SEEK_SET)
# Truncate file at current position
_win32kernel.check_io_succeed(SetEndOfFile(self.__handle))
def truncate( self, size=None ):
self.__check_not_closed()
if size is not None:
self.seek( size, whence=SEEK_SET )
# Truncate file at current position
_win32kernel.check_io_succeed( SetEndOfFile( self.__handle ) )