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v4l2: device provider: Fix GMainLoop leak

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On very quick start/stop, the mainloop may never be run. As a side
effect, our idle stop function is not really being ran, so we can't rely
on that to free the main loop. Simply unref the mainloop when the
thread have completely stop.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4521>
This commit is contained in:
Nicolas Dufresne 2023-05-01 14:01:02 -04:00 committed by GStreamer Marge Bot
parent 3fbcf5fcf3
commit 3bd43672ec
1 changed files with 10 additions and 3 deletions
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13
subprojects/gst-plugins-good/sys/v4l2/gstv4l2deviceprovider.c
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@ -369,6 +369,8 @@ provider_thread (gpointer data)
if (context == NULL || loop == NULL) {
provider->started = TRUE;
g_cond_broadcast (&provider->started_cond);
g_clear_pointer (&loop, g_main_loop_unref);
g_clear_pointer (&context, g_main_context_unref);
GST_OBJECT_UNLOCK (provider);
return NULL;
}
@ -451,19 +453,24 @@ gst_v4l2_device_provider_stop (GstDeviceProvider * provider)
self->loop = NULL;
GST_OBJECT_UNLOCK (self);
if (!context || !loop)
if (!context || !loop) {
g_clear_pointer (&self->loop, g_main_loop_unref);
g_clear_pointer (&self->context, g_main_context_unref);
return;
}
idle_stop_source = g_idle_source_new ();
g_source_set_callback (idle_stop_source, (GSourceFunc) g_main_loop_quit, loop,
(GDestroyNotify) g_main_loop_unref);
NULL);
g_source_attach (idle_stop_source, context);
g_source_unref (idle_stop_source);
g_main_context_unref (context);
g_thread_join (self->thread);
self->thread = NULL;
self->started = FALSE;
g_main_loop_unref (loop);
g_main_context_unref (context);
}
#endif