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 \��@sRdZddddgZGdd�d�ZGdd�de�ZGdd�de�ZGdd�de�Zd	S)
zAbstract Protocol class.�BaseProtocol�Protocol�DatagramProtocol�SubprocessProtocolc@s0eZdZdZdd�Zdd�Zdd�Zdd	�Zd
S)raCommon base class for protocol interfaces.

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    cCsdS)z�Called when a connection is made.

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        N�)�selfZ	transportrr�)/usr/lib64/python3.6/asyncio/protocols.py�connection_madeszBaseProtocol.connection_madecCsdS)z�Called when the connection is lost or closed.

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        Nr)r�excrrr�connection_lostszBaseProtocol.connection_lostcCsdS)aCalled when the transport's buffer goes over the high-water mark.

        Pause and resume calls are paired -- pause_writing() is called
        once when the buffer goes strictly over the high-water mark
        (even if subsequent writes increases the buffer size even
        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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        effect when it's most needed (when the app keeps writing
        without yielding until pause_writing() is 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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        Nr)rrrr�resume_writing7szBaseProtocol.resume_writingN)�__name__�
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c@s eZdZdZdd�Zdd�ZdS)ranInterface for stream protocol.

    The user should implement this interface.  They can inherit from
    this class but don't need to.  The implementations here do
    nothing (they don't raise exceptions).

    When the user wants to requests a transport, they pass a protocol
    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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        Nr)r�datarrr�
data_receivedXszProtocol.data_receivedcCsdS)z�Called when the other end calls write_eof() or equivalent.

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        Nr)rrrr�eof_received^szProtocol.eof_receivedN)r
rrrrrrrrrr>sc@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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        Nr)rr	rrr�error_receivedmszDatagramProtocol.error_receivedN)r
rrrrrrrrrrgsc@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)r�fdrrrr�pipe_data_receivedwsz%SubprocessProtocol.pipe_data_receivedcCsdS)z�Called when a file descriptor associated with the child process is
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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
rrrrrrrrrrrtsN)r�__all__rrrrrrrr�<module>s7)