'''
Task Coach - Your friendly task manager
Copyright (C) 2008 Jerome Laheurte <fraca7@free.fr>
Copyright (C) 2009 Frank Niessink <frank@niessink.com>
Task Coach is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Task Coach is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import asynchat, socket
class Acceptor(asynchat.async_chat):
"""Basic Acceptor using asynchat."""
def __init__(self, handlerFactory, host, port):
"""@param handlerFactory: A callable used to instantiate connection
handlers. Takes the socket and client address as parameters.
@param host: Host to bind to.
@param port: Port to bind to. If None, a free port between 4096
and 8192 is used."""
asynchat.async_chat.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
if port is None:
for port in xrange(4096, 8192):
try:
self.bind((host, port))
except socket.error:
pass
else:
break
else:
raise RuntimeError, 'Could not find a free port to bind to.'
else:
self.bind((host, port))
self.port = port
self.listen(5)
self.handlerFactory = handlerFactory
def handle_accept(self):
fp, addr = self.accept()
self.handlerFactory(fp, addr)
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