]> git.sesse.net Git - vlc/blobdiff - src/control/event.c
Use the longtext as longtext.
[vlc] / src / control / event.c
index ea0492c48a600a3d0f2120b8a68e68b01e6d222d..1e9c9dec09d5432ef42e60d1a7519736284f6bb1 100644 (file)
@@ -31,7 +31,6 @@
  * Private functions
  */
 
-
 /*
  * Internal libvlc functions
  */
@@ -51,7 +50,7 @@ void libvlc_event_init( libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
  *
  * finalization function.
  **************************************************************************/
-void libvlc_event_fini( libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
+void libvlc_event_fini( libvlc_instance_t *p_instance )
 {
 }
 
@@ -75,9 +74,10 @@ libvlc_event_manager_new( void * p_obj, libvlc_instance_t * p_libvlc_inst,
 
     p_em->p_obj = p_obj;
     p_em->p_libvlc_instance = p_libvlc_inst;
+    libvlc_retain( p_libvlc_inst );
     ARRAY_INIT( p_em->listeners_groups );
     vlc_mutex_init( p_libvlc_inst->p_libvlc_int, &p_em->object_lock );
-
+    vlc_mutex_init( p_libvlc_inst->p_libvlc_int, &p_em->event_sending_lock );
     return p_em;
 }
 
@@ -91,14 +91,19 @@ void libvlc_event_manager_release( libvlc_event_manager_t * p_em )
     libvlc_event_listeners_group_t * listeners_group;
     libvlc_event_listener_t * listener;
 
+    vlc_mutex_destroy( &p_em->event_sending_lock );
     vlc_mutex_destroy( &p_em->object_lock );
 
     FOREACH_ARRAY( listeners_group, p_em->listeners_groups )
         FOREACH_ARRAY( listener, listeners_group->listeners )
             free( listener );
         FOREACH_END()
+        ARRAY_RESET( listeners_group->listeners );
         free( listeners_group );
     FOREACH_END()
+    ARRAY_RESET( p_em->listeners_groups );
+
+    libvlc_release( p_em->p_libvlc_instance, NULL );
     free( p_em );
 }
 
@@ -145,6 +150,8 @@ void libvlc_event_send( libvlc_event_manager_t * p_em,
     /* Fill event with the sending object now */
     p_event->p_obj = p_em->p_obj;
 
+    /* Here a read/write lock would be nice */
+
     vlc_mutex_lock( &p_em->object_lock );
     FOREACH_ARRAY( listeners_group, p_em->listeners_groups )
         if( listeners_group->event_type == p_event->type )
@@ -164,19 +171,28 @@ void libvlc_event_send( libvlc_event_manager_t * p_em,
             listener_cached = array_listeners_cached;
             FOREACH_ARRAY( listener, listeners_group->listeners )
                 memcpy( listener_cached, listener, sizeof(libvlc_event_listener_t));
-                listener_cached += sizeof(libvlc_event_listener_t) ;
+                listener_cached++;
             FOREACH_END()
             break;
         }
     FOREACH_END()
+
     vlc_mutex_unlock( &p_em->object_lock );
 
+    /* Here a read/write lock would be *especially* nice,
+     * We would be able to send event without blocking */
+    /* The only reason for this lock is to be able to wait the
+     * End of events sending with libvlc_event_manager_lock_event_sending.
+     * This can be useful to make sure a callback is completely detached. */
+    vlc_mutex_lock( &p_em->event_sending_lock );
     listener_cached = array_listeners_cached;
     for( i = 0; i < i_cached_listeners; i++ )
     {
         listener_cached->pf_callback( p_event, listener_cached->p_user_data );
-        listener_cached += sizeof(libvlc_event_listener_t) ;
+        listener_cached++;
     }
+    vlc_mutex_unlock( &p_em->event_sending_lock );
+
     free( array_listeners_cached );
 }
 
@@ -184,6 +200,49 @@ void libvlc_event_send( libvlc_event_manager_t * p_em,
  * Public libvlc functions
  */
 
+/**************************************************************************
+ *       libvlc_event_type_name (public) :
+ *
+ * Get the char * name of an event type.
+ **************************************************************************/
+static const char * event_type_to_name[] =
+{
+#define EVENT(a) [a]=#a
+    EVENT(libvlc_MediaDescriptorMetaChanged),
+    EVENT(libvlc_MediaDescriptorSubItemAdded),
+    EVENT(libvlc_MediaDescriptorDurationChanged),
+    EVENT(libvlc_MediaDescriptorPreparsedChanged),
+    EVENT(libvlc_MediaDescriptorFreed),
+
+    EVENT(libvlc_MediaInstancePlayed),
+    EVENT(libvlc_MediaInstancePaused),
+    EVENT(libvlc_MediaInstanceReachedEnd),
+    EVENT(libvlc_MediaInstancePositionChanged),
+
+    EVENT(libvlc_MediaListItemAdded),
+    EVENT(libvlc_MediaListWillAddItem),
+    EVENT(libvlc_MediaListItemDeleted),
+    EVENT(libvlc_MediaListWillDeleteItem),
+
+    EVENT(libvlc_MediaListViewItemAdded),
+    EVENT(libvlc_MediaListViewWillAddItem),
+    EVENT(libvlc_MediaListViewItemDeleted),
+    EVENT(libvlc_MediaListViewWillDeleteItem),
+
+    EVENT(libvlc_MediaListPlayerPlayed),
+    EVENT(libvlc_MediaListPlayerNextItemSet),
+    EVENT(libvlc_MediaListPlayerStopped)
+#undef EVENT
+};
+static const char * unkwown_event_name = "Unknown Event";
+
+const char * libvlc_event_type_name( libvlc_event_type_t event_type )
+{
+    if( event_type >= sizeof(event_type_to_name)/sizeof(event_type_to_name[0]))
+        return unkwown_event_name;
+    return strdup(event_type_to_name[event_type]);
+}
+
 /**************************************************************************
  *       libvlc_event_attach (public) :
  *
@@ -203,7 +262,7 @@ void libvlc_event_attach( libvlc_event_manager_t * p_event_manager,
         libvlc_exception_raise( p_e, "No Memory left" );
         return;
     }
-    
     listener->event_type = event_type;
     listener->p_user_data = p_user_data;
     listener->pf_callback = pf_callback;
@@ -222,7 +281,7 @@ void libvlc_event_attach( libvlc_event_manager_t * p_event_manager,
     free(listener);
     libvlc_exception_raise( p_e,
             "This object event manager doesn't know about '%s' events",
-            libvlc_event_type_name(a));
+            libvlc_event_type_name(event_type));
 }
 
 /**************************************************************************
@@ -235,10 +294,28 @@ void libvlc_event_detach( libvlc_event_manager_t *p_event_manager,
                           libvlc_callback_t pf_callback,
                           void *p_user_data,
                           libvlc_exception_t *p_e )
+{
+    libvlc_event_detach_lock_state( p_event_manager, event_type, pf_callback,
+                                    p_user_data, libvlc_UnLocked, p_e );
+}
+
+/**************************************************************************
+ *       libvlc_event_detach_no_lock (internal) :
+ *
+ * Remove a callback for an event.
+ **************************************************************************/
+void libvlc_event_detach_lock_state( libvlc_event_manager_t *p_event_manager,
+                                     libvlc_event_type_t event_type,
+                                     libvlc_callback_t pf_callback,
+                                     void *p_user_data,
+                                     libvlc_lock_state_t lockstate,
+                                     libvlc_exception_t *p_e )
 {
     libvlc_event_listeners_group_t * listeners_group;
     libvlc_event_listener_t * listener;
 
+    if( lockstate == libvlc_UnLocked )
+        vlc_mutex_lock( &p_event_manager->event_sending_lock );
     vlc_mutex_lock( &p_event_manager->object_lock );
     FOREACH_ARRAY( listeners_group, p_event_manager->listeners_groups )
         if( listeners_group->event_type == event_type )
@@ -254,14 +331,18 @@ void libvlc_event_detach( libvlc_event_manager_t *p_event_manager,
                         fe_idx /* This comes from the macro (and that's why
                                   I hate macro) */ );
                     vlc_mutex_unlock( &p_event_manager->object_lock );
+                    if( lockstate == libvlc_UnLocked )
+                        vlc_mutex_unlock( &p_event_manager->event_sending_lock );
                     return;
                 }
             FOREACH_END()
         }
     FOREACH_END()
     vlc_mutex_unlock( &p_event_manager->object_lock );
+    if( lockstate == libvlc_UnLocked )
+        vlc_mutex_unlock( &p_event_manager->event_sending_lock );
 
     libvlc_exception_raise( p_e,
-            "This object event manager doesn't know about '%i,%p,%p' event observer",
-            event_type, pf_callback, p_user_data );
+            "This object event manager doesn't know about '%s,%p,%p' event observer",
+            libvlc_event_type_name(event_type), pf_callback, p_user_data );
 }