+void libvlc_retain( libvlc_instance_t *p_instance )
+{
+ assert( p_instance != NULL );
+ assert( p_instance->ref_count < UINT_MAX );
+
+ vlc_mutex_lock( &p_instance->instance_lock );
+ p_instance->ref_count++;
+ vlc_mutex_unlock( &p_instance->instance_lock );
+}
+
+void libvlc_release( libvlc_instance_t *p_instance )
+{
+ vlc_mutex_t *lock = &p_instance->instance_lock;
+ int refs;
+
+ vlc_mutex_lock( lock );
+ assert( p_instance->ref_count > 0 );
+ refs = --p_instance->ref_count;
+ vlc_mutex_unlock( lock );
+
+ if( refs == 0 )
+ {
+ vlc_mutex_destroy( lock );
+ vlc_mutex_destroy( &p_instance->event_callback_lock );
+ if( p_instance->p_event_manager )
+ libvlc_event_manager_release( p_instance->p_event_manager );
+ if( p_instance->p_vlm )
+ vlm_Delete( p_instance->p_vlm );
+ libvlc_InternalCleanup( p_instance->p_libvlc_int );
+ libvlc_InternalDestroy( p_instance->p_libvlc_int );
+ free( p_instance );
+ }
+}
+
+void libvlc_add_intf( libvlc_instance_t *p_i, const char *name,
+ libvlc_exception_t *p_e )