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