Esempio n. 1
0
    def run(self):
        try:
            # acquire a socket
            list(self.collection.find())

            pool = get_pool(self.collection.database.connection)
            socket_info = pool._get_request_state()
            assert isinstance(socket_info, SocketInfo)
            self.request_sock = socket_info.sock
            assert not _closed(self.request_sock)

            # Dereference socket_info so it can potentially return to the pool
            del socket_info
        finally:
            self.rendezvous()

        # all threads have passed the rendezvous, wait for
        # test_server_disconnect() to disconnect the connection
        self.state.ev_resume.wait()

        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly closed all threads' request sockets, then
        # this won't raise AutoReconnect because it will acquire a new socket
        assert self.request_sock == pool._get_request_state().sock
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        assert self.request_sock != pool._get_request_state().sock
        self.passed = True
Esempio n. 2
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    def run(self):
        try:
            # acquire a socket
            list(self.collection.find())

            pool = get_pool(self.collection.database.connection)
            socket_info = pool._get_request_state()
            assert isinstance(socket_info, SocketInfo)
            self.request_sock = socket_info.sock
            assert not _closed(self.request_sock)

            # Dereference socket_info so it can potentially return to the pool
            del socket_info
        finally:
            self.rendezvous()

        # all threads have passed the rendezvous, wait for
        # test_server_disconnect() to disconnect the connection
        self.state.ev_resume.wait()

        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly closed all threads' request sockets, then
        # this won't raise AutoReconnect because it will acquire a new socket
        assert self.request_sock == pool._get_request_state().sock
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        assert self.request_sock != pool._get_request_state().sock
        self.passed = True
Esempio n. 3
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    def alive(self):
        """Return ``False`` if there has been an error communicating with the
        server, else ``True``.

        This method attempts to check the status of the server with minimal I/O.
        The current thread / greenlet retrieves a socket from the pool (its
        request socket if it's in a request, or a random idle socket if it's not
        in a request) and checks whether calling `select`_ on it raises an
        error. If there are currently no idle sockets, :meth:`alive` will
        attempt to actually connect to the server.

        A more certain way to determine server availability is::

            client.admin.command('ping')

        .. _select: http://docs.python.org/2/library/select.html#select.select
        """
        # In the common case, a socket is available and was used recently, so
        # calling select() on it is a reasonable attempt to see if the OS has
        # reported an error. Note this can be wasteful: __socket implicitly
        # calls select() if the socket hasn't been checked in the last second,
        # or it may create a new socket, in which case calling select() is
        # redundant.
        try:
            sock_info = self.__socket()
            return not pool._closed(sock_info.sock)
        except (socket.error, ConnectionFailure):
            return False
Esempio n. 4
0
    def alive(self):
        """Return ``False`` if there has been an error communicating with the
        server, else ``True``.

        This method attempts to check the status of the server with minimal I/O.
        The current thread / greenlet retrieves a socket from the pool (its
        request socket if it's in a request, or a random idle socket if it's not
        in a request) and checks whether calling `select`_ on it raises an
        error. If there are currently no idle sockets, :meth:`alive` will
        attempt to actually connect to the server.

        A more certain way to determine server availability is::

            client.admin.command('ping')

        .. _select: http://docs.python.org/2/library/select.html#select.select
        """
        # In the common case, a socket is available and was used recently, so
        # calling select() on it is a reasonable attempt to see if the OS has
        # reported an error. Note this can be wasteful: __socket implicitly
        # calls select() if the socket hasn't been checked in the last second,
        # or it may create a new socket, in which case calling select() is
        # redundant.
        try:
            sock_info = self.__socket()
            return not pool._closed(sock_info.sock)
        except (socket.error, ConnectionFailure):
            return False
    def before_rendezvous(self):
        # acquire a socket
        list(self.collection.find())

        self.pool = get_pool(self.collection.database.connection)
        socket_info = self.pool._get_request_state()
        assert isinstance(socket_info, SocketInfo)
        self.request_sock = socket_info.sock
        assert not _closed(self.request_sock)
    def before_rendezvous(self):
        # acquire a socket
        list(self.collection.find())

        pool = get_pool(self.collection.database.connection)
        socket_info = pool._get_request_state()
        assert isinstance(socket_info, SocketInfo)
        self.request_sock = socket_info.sock
        assert not _closed(self.request_sock)
    def after_rendezvous(self):
        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly closed all threads' request sockets, then
        # this won't raise AutoReconnect because it will acquire a new socket
        assert self.request_sock == self.pool._get_request_state().sock
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        assert self.request_sock != self.pool._get_request_state().sock
Esempio n. 8
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    def after_rendezvous(self):
        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly replaced the pool, then this won't raise
        # AutoReconnect because it will acquire a new socket
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        pool = get_pool(self.collection.database.connection)
        assert self.request_sock != pool._get_request_state().sock
    def after_rendezvous(self):
        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly replaced the pool, then this won't raise
        # AutoReconnect because it will acquire a new socket
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        pool = get_pool(self.collection.database.connection)
        assert self.request_sock != pool._get_request_state().sock
Esempio n. 10
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    def after_rendezvous(self):
        # test_server_disconnect() has closed this socket, but that's ok
        # because it's not our request socket anymore
        assert _closed(self.request_sock)

        # if disconnect() properly closed all threads' request sockets, then
        # this won't raise AutoReconnect because it will acquire a new socket
        assert self.request_sock == self.pool._get_request_state().sock
        list(self.collection.find())
        assert self.collection.database.connection.in_request()
        assert self.request_sock != self.pool._get_request_state().sock