130 lines
4.1 KiB
Python
130 lines
4.1 KiB
Python
#
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# signalreceiver.py
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#
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# Copyright (C) 2007, 2008 Andrew Resch <andrewresch@gmail.com>
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#
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# Deluge is free software.
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#
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# You may redistribute it and/or modify it under the terms of the
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# GNU General Public License, as published by the Free Software
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# Foundation; either version 3 of the License, or (at your option)
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# any later version.
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#
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# deluge is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with deluge. If not, write to:
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# The Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor
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# Boston, MA 02110-1301, USA.
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#
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import sys
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import socket
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import random
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import gobject
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from deluge.ui.client import aclient as client
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import deluge.SimpleXMLRPCServer as SimpleXMLRPCServer
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from SocketServer import ThreadingMixIn
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import deluge.xmlrpclib as xmlrpclib
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import threading
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import socket
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from deluge.log import LOG as log
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class SignalReceiver(ThreadingMixIn, SimpleXMLRPCServer.SimpleXMLRPCServer):
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def __init__(self):
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log.debug("SignalReceiver init..")
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# Set to true so that the receiver thread will exit
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self.signals = {}
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self.remote = False
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self.start_server()
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def start_server(self, port=None):
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# Setup the xmlrpc server
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host = "127.0.0.1"
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if self.remote:
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host = ""
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server_ready = False
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while not server_ready:
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if port:
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_port = port
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else:
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_port = random.randint(40000, 65535)
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try:
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SimpleXMLRPCServer.SimpleXMLRPCServer.__init__(
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self, (host, _port), logRequests=False, allow_none=True)
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except socket.error, e:
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log.debug("Trying again with another port: %s", e)
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except:
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log.error("Could not start SignalReceiver XMLRPC server: %s", e)
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sys.exit(0)
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else:
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self.port = _port
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server_ready = True
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# Register the emit_signal function
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self.register_function(self.emit_signal)
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self.socket.setblocking(False)
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gobject.io_add_watch(self.socket.fileno(), gobject.IO_IN | gobject.IO_OUT | gobject.IO_PRI | gobject.IO_ERR | gobject.IO_HUP, self._on_socket_activity)
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#gobject.timeout_add(50, self.handle_signals)
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def _on_socket_activity(self, source, condition):
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"""This gets called when there is activity on the socket, ie, data to read
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or to write."""
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self.handle_request()
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return True
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def shutdown(self):
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"""Shutdowns receiver thread"""
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log.debug("Shutting down signalreceiver")
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# De-register with the daemon so it doesn't try to send us more signals
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try:
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client.deregister_client()
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client.force_call()
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except Exception, e:
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log.debug("Unable to deregister client from server: %s", e)
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def set_remote(self, remote):
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self.remote = remote
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self.start_server(self.port)
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def run(self):
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"""This gets called when we start the thread"""
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# Register the signal receiver with the core
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client.register_client(str(self.port))
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def get_port(self):
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"""Get the port that the SignalReceiver is listening on"""
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return self.port
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def emit_signal(self, signal, *data):
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"""Exported method used by the core to emit a signal to the client"""
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try:
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for callback in self.signals[signal]:
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gobject.idle_add(callback, *data)
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except Exception, e:
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log.warning("Unable to call callback for signal %s: %s", signal, e)
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def connect_to_signal(self, signal, callback):
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"""Connect to a signal"""
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try:
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if callback not in self.signals[signal]:
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self.signals[signal].append(callback)
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except KeyError:
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self.signals[signal] = [callback]
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