:right-sidebar: True SocketService =================================================================== .. currentmodule:: gi.repository.Gio .. versionadded:: 2.22 .. class:: SocketService(**properties: ~typing.Any) :no-contents-entry: Superclasses: :class:`~gi.repository.Gio.SocketListener`, :class:`~gi.repository.GObject.Object` Subclasses: :class:`~gi.repository.Gio.ThreadedSocketService` A ``GSocketService`` is an object that represents a service that is provided to the network or over local sockets. When a new connection is made to the service the :obj:`~gi.repository.Gio.SocketService.signals.incoming` signal is emitted. A ``GSocketService`` is a subclass of :obj:`~gi.repository.Gio.SocketListener` and you need to add the addresses you want to accept connections on with the :obj:`~gi.repository.Gio.SocketListener` APIs. There are two options for implementing a network service based on ``GSocketService``\. The first is to create the service using :obj:`~gi.repository.Gio.SocketService.new` and to connect to the :obj:`~gi.repository.Gio.SocketService.signals.incoming` signal. The second is to subclass ``GSocketService`` and override the default signal handler implementation. In either case, the handler must immediately return, or else it will block additional incoming connections from being serviced. If you are interested in writing connection handlers that contain blocking code then see :obj:`~gi.repository.Gio.ThreadedSocketService`\. The socket service runs on the main loop of the thread-default context (see :obj:`~gi.repository.GLib.MainContext.push_thread_default`\) of the thread it is created in, and is not threadsafe in general. However, the calls to start and stop the service are thread-safe so these can be used from threads that handle incoming clients. Constructors ------------ .. rst-class:: interim-class .. class:: SocketService :no-index: .. classmethod:: new() -> ~gi.repository.Gio.SocketService Creates a new :obj:`~gi.repository.Gio.SocketService` with no sockets to listen for. New listeners can be added with e.g. :func:`~gi.repository.Gio.SocketListener.add_address` or :func:`~gi.repository.Gio.SocketListener.add_inet_port`. New services are created active, there is no need to call :func:`~gi.repository.Gio.SocketService.start`, unless :func:`~gi.repository.Gio.SocketService.stop` has been called before. .. versionadded:: 2.22 Methods ------- .. rst-class:: interim-class .. class:: SocketService :no-index: .. method:: do_incoming(self, connection: ~gi.repository.Gio.SocketConnection, source_object: ~gi.repository.GObject.Object) -> bool :param connection: :param source_object: .. method:: is_active() -> bool Check whether the service is active or not. An active service will accept new clients that connect, while a non-active service will let connecting clients queue up until the service is started. .. versionadded:: 2.22 .. method:: start() -> None Restarts the service, i.e. start accepting connections from the added sockets when the mainloop runs. This only needs to be called after the service has been stopped from :func:`~gi.repository.Gio.SocketService.stop`. This call is thread-safe, so it may be called from a thread handling an incoming client request. .. versionadded:: 2.22 .. method:: stop() -> None Stops the service, i.e. stops accepting connections from the added sockets when the mainloop runs. This call is thread-safe, so it may be called from a thread handling an incoming client request. Note that this only stops accepting new connections; it does not close the listening sockets, and you can call :func:`~gi.repository.Gio.SocketService.start` again later to begin listening again. To close the listening sockets, call :func:`~gi.repository.Gio.SocketListener.close`. (This will happen automatically when the :obj:`~gi.repository.Gio.SocketService` is finalized.) This must be called before calling :func:`~gi.repository.Gio.SocketListener.close` as the socket service will start accepting connections immediately when a new socket is added. .. versionadded:: 2.22 Properties ---------- .. rst-class:: interim-class .. class:: SocketService :no-index: .. attribute:: props.active :type: bool Whether the service is currently accepting connections. .. versionadded:: 2.46 Signals ------- .. rst-class:: interim-class .. class:: SocketService.signals :no-index: .. method:: incoming(connection: ~gi.repository.Gio.SocketConnection, source_object: ~gi.repository.GObject.Object | None = None) -> bool The ::incoming signal is emitted when a new incoming connection to ``service`` needs to be handled. The handler must initiate the handling of ``connection``\, but may not block; in essence, asynchronous operations must be used. ``connection`` will be unreffed once the signal handler returns, so you need to ref it yourself if you are planning to use it. .. versionadded:: 2.22 :param connection: a new :obj:`~gi.repository.Gio.SocketConnection` object :param source_object: the source_object passed to :func:`~gi.repository.Gio.SocketListener.add_address` Virtual Methods --------------- .. rst-class:: interim-class .. class:: SocketService :no-index: .. method:: do_incoming(connection: ~gi.repository.Gio.SocketConnection, source_object: ~gi.repository.GObject.Object) -> bool signal emitted when new connections are accepted :param connection: :param source_object: Fields ------ .. rst-class:: interim-class .. class:: SocketService :no-index: .. attribute:: parent_instance .. attribute:: priv