Beispiel #1
0
    def run(self):
        """
        Manager's mainloop executed from within a thread.

        Constantly poll for read events and, when available,
        call related websockets' `once` method to
        read and process the incoming data.

        If the :meth:`once() <ws4py.websocket.WebSocket.once>`
        method returns a `False` value, its :meth:`terminate() <ws4py.websocket.WebSocket.terminate>`
        method is also applied to properly close
        the websocket and its socket is unregistered from the poller.

        Note that websocket shouldn't take long to process
        their data or they will block the remaining
        websockets with data to be handled. As for what long means,
        it's up to your requirements.
        """
        self.running = True
        while self.running:
            with self.lock:
                polled = self.poller.poll()

            if not self.running:
                break

            # This fixes an error in the ws4py package - not yet in the upstream
            # package. --Kitware
            #
            # workaround wss + cherrypy bug
            import itertools
            for ws in self.websockets.itervalues():
                if hasattr(ws.sock, 'pending') and ws.sock.pending() != 0:
                    polled = itertools.chain(polled, [ws.sock.fileno()])

            for fd in polled:
                if not self.running:
                    break

                ws = self.websockets.get(fd)

                if ws and not ws.terminated:
                    if not ws.once():
                        with self.lock:
                            fd = ws.sock.fileno()
                            self.websockets.pop(fd, None)
                            self.poller.unregister(fd)

                        if not ws.terminated:
                            logger.info("Terminating websocket %s" %
                                        format_addresses(ws))
                            ws.terminate()
Beispiel #2
0
    def remove(self, websocket):
        """
        Remove the given ``websocket`` from the manager.

        This does not call its :meth:`closed() <ws4py.websocket.WebSocket.closed>`
        method as it's out-of-band by your application
        or from within the manager's run loop.
        """
        logger.info("Removing websocket %s" % format_addresses(websocket))
        with self.lock:
            fd = websocket.sock.fileno()
            self.websockets.pop(fd, None)
            self.poller.unregister(fd)
Beispiel #3
0
    def remove(self, websocket):
        """
        Remove the given ``websocket`` from the manager.

        This does not call its :meth:`closed() <ws4py.websocket.WebSocket.closed>`
        method as it's out-of-band by your application
        or from within the manager's run loop.
        """
        logger.info("Removing websocket %s" % format_addresses(websocket))
        with self.lock:
            fd = websocket.sock.fileno()
            self.websockets.pop(fd, None)
            self.poller.unregister(fd)
Beispiel #4
0
    def run(self):
        """
        Manager's mainloop executed from within a thread.

        Constantly poll for read events and, when available,
        call related websockets' `once` method to
        read and process the incoming data.

        If the :meth:`once() <ws4py.websocket.WebSocket.once>`
        method returns a `False` value, its :meth:`terminate() <ws4py.websocket.WebSocket.terminate>`
        method is also applied to properly close
        the websocket and its socket is unregistered from the poller.

        Note that websocket shouldn't take long to process
        their data or they will block the remaining
        websockets with data to be handled. As for what long means,
        it's up to your requirements.
        """
        self.running = True
        while self.running:
            with self.lock:
                polled = self.poller.poll()

            if not self.running:
                break

            # This fixes an error in the ws4py package - not yet in the upstream
            # package. --Kitware
            #
            # workaround wss + cherrypy bug
            import itertools
            for ws in self.websockets.itervalues():
                if hasattr(ws.sock, 'pending') and ws.sock.pending() != 0:
                    polled = itertools.chain(polled, [ws.sock.fileno()])

            for fd in polled:
                if not self.running:
                    break

                ws = self.websockets.get(fd)

                if ws and not ws.terminated:
                    if not ws.once():
                        with self.lock:
                            fd = ws.sock.fileno()
                            self.websockets.pop(fd, None)
                            self.poller.unregister(fd)

                        if not ws.terminated:
                            logger.info("Terminating websocket %s" % format_addresses(ws))
                            ws.terminate()
Beispiel #5
0
    def add(self, websocket):
        """
        Manage a new websocket.

        First calls its :meth:`opened() <ws4py.websocket.WebSocket.opened>`
        method and register its socket against the poller
        for reading events.
        """
        logger.info("Managing websocket %s" % format_addresses(websocket))
        websocket.opened()
        with self.lock:
            fd = websocket.sock.fileno()
            self.websockets[fd] = websocket
            self.poller.register(fd)
Beispiel #6
0
    def add(self, websocket):
        """
        Manage a new websocket.

        First calls its :meth:`opened() <ws4py.websocket.WebSocket.opened>`
        method and register its socket against the poller
        for reading events.
        """
        logger.info("Managing websocket %s" % format_addresses(websocket))
        websocket.opened()
        with self.lock:
            fd = websocket.sock.fileno()
            self.websockets[fd] = websocket
            self.poller.register(fd)
Beispiel #7
0
    def run(self):
        """
        Manager's mainloop executed from within a thread.

        Constantly poll for read events and, when available,
        call related websockets' `once` method to
        read and process the incoming data.

        If the :meth:`once() <ws4py.websocket.WebSocket.once>`
        method returns a `False` value, its :meth:`terminate() <ws4py.websocket.WebSocket.terminate>`
        method is also applied to properly close
        the websocket and its socket is unregistered from the poller.

        Note that websocket shouldn't take long to process
        their data or they will block the remaining
        websockets with data to be handled. As for what long means,
        it's up to your requirements.
        """
        self.running = True
        while self.running:
            with self.lock:
                polled = self.poller.poll()

            if not self.running:
                break

            for fd in polled:
                if not self.running:
                    break

                ws = self.websockets.get(fd)

                if ws and not ws.terminated:
                    if not ws.once():
                        with self.lock:
                            fd = ws.sock.fileno()
                            self.websockets.pop(fd, None)
                            self.poller.unregister(fd)

                        if not ws.terminated:
                            logger.info("Terminating websocket %s" %
                                        format_addresses(ws))
                            ws.terminate()
Beispiel #8
0
    def run(self):
        """
        Manager's mainloop executed from within a thread.

        Constantly poll for read events and, when available,
        call related websockets' `once` method to
        read and process the incoming data.

        If the :meth:`once() <ws4py.websocket.WebSocket.once>`
        method returns a `False` value, its :meth:`terminate() <ws4py.websocket.WebSocket.terminate>`
        method is also applied to properly close
        the websocket and its socket is unregistered from the poller.

        Note that websocket shouldn't take long to process
        their data or they will block the remaining
        websockets with data to be handled. As for what long means,
        it's up to your requirements.
        """
        self.running = True
        while self.running:
            with self.lock:
                polled = self.poller.poll()

            if not self.running:
                break

            for fd in polled:
                if not self.running:
                    break

                ws = self.websockets.get(fd)

                if ws and not ws.terminated:
                    if not ws.once():
                        with self.lock:
                            fd = ws.sock.fileno()
                            self.websockets.pop(fd, None)
                            self.poller.unregister(fd)

                        if not ws.terminated:
                            logger.info("Terminating websocket %s" % format_addresses(ws))
                            ws.terminate()