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Viewing changes to vendor/Twisted-10.0.0/twisted/test/stdio_test_producer.py

  • Committer: Jesse Andrews
  • Date: 2010-05-28 06:05:26 UTC
  • Revision ID: git-v1:bf6e6e718cdc7488e2da87b21e258ccc065fe499
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vendor/Twisted-10.0.0/twisted/test/stdio_test_producer.py
 
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# -*- test-case-name: twisted.test.test_stdio.StandardInputOutputTestCase.test_producer -*-
 
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# Copyright (c) 2006-2007 Twisted Matrix Laboratories.
 
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# See LICENSE for details.
 
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"""
 
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Main program for the child process run by
 
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L{twisted.test.test_stdio.StandardInputOutputTestCase.test_producer} to test
 
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that process transports implement IProducer properly.
 
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"""
 
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import sys
 
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from twisted.internet import stdio, protocol
 
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from twisted.python import log, reflect
 
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class ProducerChild(protocol.Protocol):
 
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    _paused = False
 
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    buf = ''
 
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    def connectionLost(self, reason):
 
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        log.msg("*****OVER*****")
 
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        reactor.callLater(1, reactor.stop)
 
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        # reactor.stop()
 
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    def dataReceived(self, bytes):
 
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        self.buf += bytes
 
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        if self._paused:
 
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            log.startLogging(sys.stderr)
 
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            log.msg("dataReceived while transport paused!")
 
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            self.transport.loseConnection()
 
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        else:
 
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            self.transport.write(bytes)
 
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            if self.buf.endswith('\n0\n'):
 
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                self.transport.loseConnection()
 
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            else:
 
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                self.pause()
 
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    def pause(self):
 
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        self._paused = True
 
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        self.transport.pauseProducing()
 
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        reactor.callLater(0.01, self.unpause)
 
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    def unpause(self):
 
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        self._paused = False
 
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        self.transport.resumeProducing()
 
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if __name__ == '__main__':
 
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    reflect.namedAny(sys.argv[1]).install()
 
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    from twisted.internet import reactor
 
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    stdio.StandardIO(ProducerChild())
 
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    reactor.run()