test_win32file.py 文件源码

def _IOCPServerThread(self, handle, port, drop_overlapped_reference):
        overlapped = pywintypes.OVERLAPPED()
        win32pipe.ConnectNamedPipe(handle, overlapped)
        if drop_overlapped_reference:
            # Be naughty - the overlapped object is now dead, but
            # GetQueuedCompletionStatus will still find it.  Our check of
            # reference counting should catch that error.
            overlapped = None
            # even if we fail, be sure to close the handle; prevents hangs
            # on Vista 64...
            try:
                self.failUnlessRaises(RuntimeError,
                                      win32file.GetQueuedCompletionStatus, port, -1)
            finally:
                handle.Close()
            return

        result = win32file.GetQueuedCompletionStatus(port, -1)
        ol2 = result[-1]
        self.failUnless(ol2 is overlapped)
        data = win32file.ReadFile(handle, 512)[1]
        win32file.WriteFile(handle, data)