test_devshell.py 文件源码

def run(self):
        s = None
        try:
            # Do not set the timeout on the socket, leave it in the blocking
            # mode as setting the timeout seems to cause spurious EAGAIN
            # errors on OSX.
            self._socket.settimeout(None)

            s, unused_addr = self._socket.accept()
            resp_buffer = ''
            resp_1 = s.recv(6).decode()
            nstr, extra = resp_1.split('\n', 1)
            resp_buffer = extra
            n = int(nstr)
            to_read = n - len(extra)
            if to_read > 0:
                resp_buffer += _helpers._from_bytes(
                    s.recv(to_read, socket.MSG_WAITALL))
            if resp_buffer != devshell.CREDENTIAL_INFO_REQUEST_JSON:
                self.bad_request = True
            response_len = len(self.response)
            s.sendall('{0}\n{1}'.format(response_len, self.response).encode())
        finally:
            # Will fail if s is None, but these tests never encounter
            # that scenario.
            s.close()