npipesocket.py 文件源码

def connect(self, address):
        win32pipe.WaitNamedPipe(address, self._timeout)
        try:
            handle = win32file.CreateFile(
                address,
                win32file.GENERIC_READ | win32file.GENERIC_WRITE,
                0,
                None,
                win32file.OPEN_EXISTING,
                cSECURITY_ANONYMOUS | cSECURITY_SQOS_PRESENT,
                0
            )
        except win32pipe.error as e:
            # See Remarks:
            # https://msdn.microsoft.com/en-us/library/aa365800.aspx
            if e.winerror == cERROR_PIPE_BUSY:
                # Another program or thread has grabbed our pipe instance
                # before we got to it. Wait for availability and attempt to
                # connect again.
                win32pipe.WaitNamedPipe(address, RETRY_WAIT_TIMEOUT)
                return self.connect(address)
            raise e

        self.flags = win32pipe.GetNamedPipeInfo(handle)[0]

        self._handle = handle
        self._address = address