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gsocketlistener: Document the need to call g_socket_listener_close()

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GSocketListener can keep internal references to itself for pending
accept() calls, which mean that it can stay alive (and keep listening
on ports) even after a user drops their last reference to it. They need
to call g_socket_listener_close() explicitly to avoid that.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://bugzilla.gnome.org/show_bug.cgi?id=794207
This commit is contained in:
Philip Withnall 2018-03-13 14:03:24 +00:00
parent dd815c3d2b
commit d1077304ec
1 changed files with 15 additions and 0 deletions
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15
gio/gsocketlistener.c
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@ -49,6 +49,13 @@
* of server sockets and helps you accept sockets from any of the
* socket, either sync or async.
*
* Add addresses and ports to listen on using g_socket_listener_add_address()
* and g_socket_listener_add_inet_port(). These will be listened on until
* g_socket_listener_close() is called. Dropping your final reference to the
* #GSocketListener will not cause g_socket_listener_close() to be called
* implicitly, as some references to the #GSocketListener may be held
* internally.
*
* If you want to implement a network server, also look at #GSocketService
* and #GThreadedSocketService which are subclasses of #GSocketListener
* that make this even easier.
@ -309,6 +316,10 @@ g_socket_listener_add_socket (GSocketListener *listener,
* requesting a binding to port 0 (ie: "any port"). This address, if
* requested, belongs to the caller and must be freed.
*
* Call g_socket_listener_close() to stop listening on @address; this will not
* be done automatically when you drop your final reference to @listener, as
* references may be held internally.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.22
@ -404,6 +415,10 @@ g_socket_listener_add_address (GSocketListener *listener,
* useful if you're listening on multiple addresses and do
* different things depending on what address is connected to.
*
* Call g_socket_listener_close() to stop listening on @port; this will not
* be done automatically when you drop your final reference to @listener, as
* references may be held internally.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.22