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��Yf��@sqdZddddgZGdd�d�ZGdd�de�ZGdd�de�ZGdd�de�Zd	S)
zAbstract Protocol class.�BaseProtocol�Protocol�DatagramProtocol�SubprocessProtocolc@sFeZdZdZdd�Zdd�Zdd�Zdd	�Zd
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        more), and eventually resume_writing() is called once when the
        buffer size reaches the low-water mark.

        Note that if the buffer size equals the high-water mark,
        pause_writing() is not called -- it must go strictly over.
        Conversely, resume_writing() is called when the buffer size is
        equal or lower than the low-water mark.  These end conditions
        are important to ensure that things go as expected when either
        mark is zero.

        NOTE: This is the only Protocol callback that is not called
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pause_writing!szBaseProtocol.pause_writingcCsdS)zvCalled when the transport's buffer drains below the low-water mark.

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c@s.eZdZdZdd�Zdd�ZdS)ranInterface for stream protocol.

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    factory to a utility function (e.g., EventLoop.create_connection()).

    When the connection is made successfully, connection_made() is
    called with a suitable transport object.  Then data_received()
    will be called 0 or more times with data (bytes) received from the
    transport; finally, connection_lost() will be called exactly once
    with either an exception object or None as an argument.

    State machine of calls:

      start -> CM [-> DR*] [-> ER?] -> CL -> end

    * CM: connection_made()
    * DR: data_received()
    * ER: eof_received()
    * CL: connection_lost()
    cCsdS)zTCalled when some data is received.

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data_receivedXszProtocol.data_receivedcCsdS)z�Called when the other end calls write_eof() or equivalent.

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rrrrrrrrrr>sc@s.eZdZdZdd�Zdd�ZdS)rz Interface for datagram protocol.cCsdS)z&Called when some datagram is received.Nr)rrZaddrrrr�datagram_receivedjsz"DatagramProtocol.datagram_receivedcCsdS)z~Called when a send or receive operation raises an OSError.

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rrrrrrrrrrgsc@s:eZdZdZdd�Zdd�Zdd�ZdS)	rz,Interface for protocol for subprocess calls.cCsdS)z�Called when the subprocess writes data into stdout/stderr pipe.

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        Nr)rrr	rrr�pipe_connection_lost~sz'SubprocessProtocol.pipe_connection_lostcCsdS)z"Called when subprocess has exited.Nr)rrrr�process_exited�sz!SubprocessProtocol.process_exitedN)r
rrrrrrrrrrrtsN)r�__all__rrrrrrrr�<module>s		7)
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