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Producer-Consumer Proxy.
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    I can act as a man in the middle between any Producer and Consumer.

    @ivar producer: the Producer I subscribe to.
    @type producer: L{IProducer<interfaces.IProducer>}
    @ivar consumer: the Consumer I publish to.
    @type consumer: L{IConsumer<interfaces.IConsumer>}
    @ivar paused: As a Producer, am I paused?
    @type paused: bool
    cCs8g|_|dk	r4||_|j||jƒndS(N(t_buffertNonetconsumertregisterProducertiAmStreaming(tselfR((s9/usr/lib/python2.7/dist-packages/twisted/protocols/pcp.pyt__init__#s		cCs&t|_|jr"|jjƒndS(N(tTruetpausedtproducertpauseProducing(R((s9/usr/lib/python2.7/dist-packages/twisted/protocols/pcp.pyR
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		cCsd|jt|ƒ|jfS(Ns<%s@%x around %s>(t	__class__tidR(R((s9/usr/lib/python2.7/dist-packages/twisted/protocols/pcp.pyt__repr__^sN(t__name__t
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d„Zd„ZRS(	s˜ProducerConsumerProxy with a finite buffer.

    When my buffer fills up, I have my parent Producer pause until my buffer
    has room in it again.
    icCs
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|ƒ^qÔƒ}||jkr|jjƒt|_qndS(Ns9Writing fresh data to consumer before my buffer is empty!s.Streaming producer did not write all its data.(RRRRRRRR'R%RR&RRR)R+R
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cCs3t|_tj|||ƒ|s/|jƒndS(N(RR(RRR(RRR((s9/usr/lib/python2.7/dist-packages/twisted/protocols/pcp.pyR¶s	cCsN|jdk	r|`|`nt|_|jrJ|jrJ|jjƒndS(N(RRRR
R(RRR(R((s9/usr/lib/python2.7/dist-packages/twisted/protocols/pcp.pyR¼s		cCs-|jdkrdS|jj|ƒt|ƒS(s`Write as much of this data as possible.

        @returns: The number of bytes written.
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