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# -*- test-case-name: twisted.test.test_stdio -*-
"""
Windows-specific implementation of the L{twisted.internet.stdio} interface.
"""
from __future__ import absolute_import, division
import win32api
import os
import msvcrt
from zope.interface import implementer
from twisted.internet.interfaces import (IHalfCloseableProtocol, ITransport,
IConsumer, IPushProducer, IAddress)
from twisted.internet import _pollingfile, main
from twisted.python.failure import Failure
@implementer(IAddress)
class Win32PipeAddress(object):
pass
@implementer(ITransport, IConsumer, IPushProducer)
class StandardIO(_pollingfile._PollingTimer):
disconnecting = False
disconnected = False
def __init__(self, proto, reactor=None):
"""
Start talking to standard IO with the given protocol.
Also, put it stdin/stdout/stderr into binary mode.
"""
if reactor is None:
from twisted.internet import reactor
for stdfd in range(0, 1, 2):
msvcrt.setmode(stdfd, os.O_BINARY)
_pollingfile._PollingTimer.__init__(self, reactor)
self.proto = proto
hstdin = win32api.GetStdHandle(win32api.STD_INPUT_HANDLE)
hstdout = win32api.GetStdHandle(win32api.STD_OUTPUT_HANDLE)
self.stdin = _pollingfile._PollableReadPipe(
hstdin, self.dataReceived, self.readConnectionLost)
self.stdout = _pollingfile._PollableWritePipe(
hstdout, self.writeConnectionLost)
self._addPollableResource(self.stdin)
self._addPollableResource(self.stdout)
self.proto.makeConnection(self)
def dataReceived(self, data):
self.proto.dataReceived(data)
def readConnectionLost(self):
if IHalfCloseableProtocol.providedBy(self.proto):
self.proto.readConnectionLost()
self.checkConnLost()
def writeConnectionLost(self):
if IHalfCloseableProtocol.providedBy(self.proto):
self.proto.writeConnectionLost()
self.checkConnLost()
connsLost = 0
def checkConnLost(self):
self.connsLost += 1
if self.connsLost >= 2:
self.disconnecting = True
self.disconnected = True
self.proto.connectionLost(Failure(main.CONNECTION_DONE))
# ITransport
def write(self, data):
self.stdout.write(data)
def writeSequence(self, seq):
self.stdout.write(b''.join(seq))
def loseConnection(self):
self.disconnecting = True
self.stdin.close()
self.stdout.close()
def getPeer(self):
return Win32PipeAddress()
def getHost(self):
return Win32PipeAddress()
# IConsumer
def registerProducer(self, producer, streaming):
return self.stdout.registerProducer(producer, streaming)
def unregisterProducer(self):
return self.stdout.unregisterProducer()
# def write() above
# IProducer
def stopProducing(self):
self.stdin.stopProducing()
# IPushProducer
def pauseProducing(self):
self.stdin.pauseProducing()
def resumeProducing(self):
self.stdin.resumeProducing()