Class Server

Lib/multiprocessing/managers.py:143–469

Server class which runs in a process controlled by a manager object

#

class Server(object):
    '''
    Server class which runs in a process controlled by a manager object
    '''
    public = ['shutdown', 'create', 'accept_connection', 'get_methods',
              'debug_info', 'number_of_objects', 'dummy', 'incref', 'decref']

    def __init__(self, registry, address, authkey, serializer):
        if not isinstance(authkey, bytes):
            raise TypeError(
                "Authkey {0!r} is type {1!s}, not bytes".format(
                    authkey, type(authkey)))
        self.registry = registry
        self.authkey = process.AuthenticationString(authkey)
        Listener, Client = listener_client[serializer]

        # do authentication later
        self.listener = Listener(address=address, backlog=128)
        self.address = self.listener.address

        self.id_to_obj = {'0': (None, ())}
        self.id_to_refcount = {}
        self.id_to_local_proxy_obj = {}
        self.mutex = threading.Lock()

    def serve_forever(self):
        '''
        Run the server forever
        '''
        self.stop_event = threading.Event()
        process.current_process()._manager_server = self
        try:
            accepter = threading.Thread(target=self.accepter)
            accepter.daemon = True
            accepter.start()
            try:
                while not self.stop_event.is_set():
                    self.stop_event.wait(1)
            except (KeyboardInterrupt, SystemExit):
                pass
        finally:
            if sys.stdout != sys.__stdout__: # what about stderr?
                util.debug('resetting stdout, stderr')
                sys.stdout = sys.__stdout__
                sys.stderr = sys.__stderr__
            sys.exit(0)

    def accepter(self):
        while True:
            try:
                c = self.listener.accept()
            except OSError:
                continue
            t = threading.Thread(target=self.handle_request, args=(c,))
            t.daemon = True
            t.start()

    def _handle_request(self, c):