Add vlc_pa_rttime_free()

This makes up for the lack of pa_context_rttime_free() in libpulse.

include/vlc_pulse.h

@@ -35,6 +35,8 @@ VLC_API void vlc_pa_disconnect (vlc_object_t *obj, pa_context *ctx);
 VLC_API void vlc_pa_error (vlc_object_t *, const char *msg, pa_context *);
 #define vlc_pa_error(o, m, c) vlc_pa_error(VLC_OBJECT(o), m, c)
 
+VLC_API void vlc_pa_rttime_free (pa_time_event *);
+
 # ifdef __cplusplus
 }
 # endif

src/pulse/mainloop.c

@@ -255,3 +255,14 @@ void vlc_pa_disconnect (vlc_object_t *obj, pa_context *ctx)
     vlc_pa_mainloop_deinit ();
     (void) obj;
 }
+
+/**
+ * Frees a timer event.
+ * \note Timer events can be created with pa_context_rttime_new().
+ * \warning This function must be called from the mainloop,
+ * or with the mainloop lock held.
+ */
+void vlc_pa_rttime_free(pa_time_event *e)
+{
+    (pa_threaded_mainloop_get_api (vlc_pa_mainloop))->time_free (e);
+}