test_socket.py 文件源码

def testFDPassCMSG_SPACE(self):
        # Test using CMSG_SPACE() to calculate ancillary buffer size.
        self.checkRecvmsgFDs(
            4, self.doRecvmsg(self.serv_sock, len(MSG),
                              socket.CMSG_SPACE(4 * SIZEOF_INT)))