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src/twisted/test/process_twisted.py

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"""A process that reads from stdin and out using Twisted."""

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### Twisted Preamble

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# This makes sure that users don't have to set up their environment

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# specially in order to run these programs from bin/.

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import sys, os, string

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pos = string.find(os.path.abspath(sys.argv[0]), os.sep+'Twisted')

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if pos != -1:

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    sys.path.insert(0, os.path.abspath(sys.argv[0])[:pos+8])

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sys.path.insert(0, os.curdir)

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### end of preamble

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from twisted.python import log

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from zope.interface import implements

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from twisted.internet import interfaces

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log.startLogging(sys.stderr)

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from twisted.internet import protocol, reactor, stdio

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class Echo(protocol.Protocol):

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    implements(interfaces.IHalfCloseableProtocol)

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    def connectionMade(self):

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        print "connection made"

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    def dataReceived(self, data):

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        self.transport.write(data)

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    def readConnectionLost(self):

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        print "readConnectionLost"

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        self.transport.loseConnection()

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    def writeConnectionLost(self):

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        print "writeConnectionLost"

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    def connectionLost(self, reason):

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        print "connectionLost", reason

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        reactor.stop()

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stdio.StandardIO(Echo())

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reactor.run()

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