#include <vlc/vlc.h>
-#include <stdio.h> /* required */
-#include <stdlib.h> /* malloc() */
-
#include <assert.h>
#include <vlc_events.h>
* Documentation : Read vlc_events.h
*****************************************************************************/
+//#define DEBUG_EVENT
+
/*****************************************************************************
* Private types.
*****************************************************************************/
{
void * p_user_data;
vlc_event_callback_t pf_callback;
+#ifdef DEBUG_EVENT
+ char * psz_debug_name;
+#endif
} vlc_event_listener_t;
typedef struct vlc_event_listeners_group_t
DECL_ARRAY(struct vlc_event_listener_t *) listeners;
} vlc_event_listeners_group_t;
+#ifdef DEBUG_EVENT
+static const char * ppsz_event_type_to_name[] =
+{
+ [vlc_InputItemMetaChanged] = "vlc_InputItemMetaChanged",
+ [vlc_InputItemSubItemAdded] = "vlc_InputItemSubItemAdded",
+ [vlc_ServicesDiscoveryItemAdded] = "vlc_ServicesDiscoveryItemAdded",
+ [vlc_ServicesDiscoveryItemRemoved] = "vlc_ServicesDiscoveryItemRemoved"
+};
+#endif
+
/*****************************************************************************
- *
+ *
*****************************************************************************/
/**
* Initialize event manager object
- * p_this is the object that contains the event manager. But not
+ * p_obj is the object that contains the event manager. But not
* necessarily a vlc_object_t (an input_item_t is not a vlc_object_t
* for instance).
+ * p_parent_obj gives a libvlc instance
*/
-int event_manager_Create( vlc_event_manager_t * p_em, void * p_obj )
+int vlc_event_manager_init( vlc_event_manager_t * p_em, void * p_obj,
+ vlc_object_t * p_parent_obj )
{
p_em->p_obj = p_obj;
+ p_em->p_parent_object = p_parent_obj;
+ vlc_mutex_init( p_parent_obj, &p_em->object_lock );
ARRAY_INIT( p_em->listeners_groups );
return VLC_SUCCESS;
}
/**
* Destroy the event manager
*/
-void event_manager_Destroy( vlc_event_manager_t * p_em )
+void vlc_event_manager_fini( vlc_event_manager_t * p_em )
{
struct vlc_event_listeners_group_t * listeners_group;
struct vlc_event_listener_t * listener;
+ 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()
- free( p_em );
+ ARRAY_RESET( p_em->listeners_groups );
}
/**
* Destroy the event manager
*/
-int event_manager_RegisterEventType(
+int vlc_event_manager_register_event_type(
vlc_event_manager_t * p_em,
vlc_event_type_t event_type )
{
listeners_group->event_type = event_type;
ARRAY_INIT( listeners_group->listeners );
-
+
+ vlc_mutex_lock( &p_em->object_lock );
ARRAY_APPEND( p_em->listeners_groups, listeners_group );
+ vlc_mutex_unlock( &p_em->object_lock );
return VLC_SUCCESS;
}
/**
* Send an event to the listener attached to this p_em.
*/
-void event_Send( vlc_event_manager_t * p_em,
- vlc_event_t * p_event )
+void vlc_event_send( vlc_event_manager_t * p_em,
+ vlc_event_t * p_event )
{
vlc_event_listeners_group_t * listeners_group;
vlc_event_listener_t * listener;
+ vlc_event_listener_t * array_of_cached_listeners = NULL;
+ vlc_event_listener_t * cached_listener;
+ int i, i_cached_listeners = 0;
/* Fill event with the sending object now */
p_event->p_obj = p_em->p_obj;
+ vlc_mutex_lock( &p_em->object_lock );
FOREACH_ARRAY( listeners_group, p_em->listeners_groups )
if( listeners_group->event_type == p_event->type )
{
- /* We found the group, now send every one the event */
+ if( listeners_group->listeners.i_size <= 0 )
+ break;
+
+ /* Save the function to call */
+ i_cached_listeners = listeners_group->listeners.i_size;
+ array_of_cached_listeners = malloc(
+ sizeof(vlc_event_listener_t)*i_cached_listeners );
+ if( !array_of_cached_listeners )
+ {
+ msg_Err( p_em->p_parent_object, "Not enough memory in vlc_event_send" );
+ vlc_mutex_unlock( &p_em->object_lock );
+ return;
+ }
+
+ cached_listener = array_of_cached_listeners;
FOREACH_ARRAY( listener, listeners_group->listeners )
- listener->pf_callback( p_event, listener->p_user_data );
+ memcpy( cached_listener, listener, sizeof(vlc_event_listener_t));
+#ifdef DEBUG_EVENT
+ cached_listener->psz_debug_name = strdup(cached_listener->psz_debug_name);
+#endif
+ cached_listener++;
FOREACH_END()
+
break;
}
FOREACH_END()
+ vlc_mutex_unlock( &p_em->object_lock );
+
+ /* Call the function attached */
+ cached_listener = array_of_cached_listeners;
+ for( i = 0; i < i_cached_listeners; i++ )
+ {
+#ifdef DEBUG_EVENT
+ msg_Dbg( p_em->p_parent_object,
+ "Calling '%s' with a '%s' event (data %p)",
+ cached_listener->psz_debug_name,
+ ppsz_event_type_to_name[p_event->type],
+ cached_listener->p_user_data );
+ free(cached_listener->psz_debug_name);
+#endif
+
+ cached_listener->pf_callback( p_event, cached_listener->p_user_data );
+ cached_listener++;
+ }
+ free( array_of_cached_listeners );
+
}
/**
* Add a callback for an event.
*/
-int event_Attach( vlc_event_manager_t * p_event_manager,
- vlc_event_type_t event_type,
- vlc_event_callback_t pf_callback,
- void *p_user_data )
+int __vlc_event_attach( vlc_event_manager_t * p_em,
+ vlc_event_type_t event_type,
+ vlc_event_callback_t pf_callback,
+ void *p_user_data,
+ const char * psz_debug_name )
{
vlc_event_listeners_group_t * listeners_group;
vlc_event_listener_t * listener;
listener = malloc(sizeof(vlc_event_listener_t));
if( !listener )
return VLC_ENOMEM;
-
+
listener->p_user_data = p_user_data;
listener->pf_callback = pf_callback;
-
- FOREACH_ARRAY( listeners_group, p_event_manager->listeners_groups )
+#ifdef DEBUG_EVENT
+ listener->psz_debug_name = strdup( psz_debug_name );
+#else
+ (void)psz_debug_name;
+#endif
+
+ vlc_mutex_lock( &p_em->object_lock );
+ FOREACH_ARRAY( listeners_group, p_em->listeners_groups )
if( listeners_group->event_type == event_type )
{
ARRAY_APPEND( listeners_group->listeners, listener );
+#ifdef DEBUG_EVENT
+ msg_Dbg( p_em->p_parent_object,
+ "Listening to '%s' event with '%s' (data %p)",
+ ppsz_event_type_to_name[event_type],
+ listener->psz_debug_name,
+ listener->p_user_data );
+#endif
+ vlc_mutex_unlock( &p_em->object_lock );
return VLC_SUCCESS;
}
FOREACH_END()
-
+ vlc_mutex_unlock( &p_em->object_lock );
+
+ msg_Err( p_em->p_parent_object, "Can't attach to an object event manager event" );
free(listener);
return VLC_EGENERIC;
}
/**
* Remove a callback for an event.
*/
-int event_Detach( vlc_event_manager_t *p_event_manager,
- vlc_event_type_t event_type,
- vlc_event_callback_t pf_callback,
- void *p_user_data )
+int vlc_event_detach( vlc_event_manager_t *p_em,
+ vlc_event_type_t event_type,
+ vlc_event_callback_t pf_callback,
+ void *p_user_data )
{
vlc_event_listeners_group_t * listeners_group;
struct vlc_event_listener_t * listener;
- FOREACH_ARRAY( listeners_group, p_event_manager->listeners_groups )
+
+ vlc_mutex_lock( &p_em->object_lock );
+ FOREACH_ARRAY( listeners_group, p_em->listeners_groups )
if( listeners_group->event_type == event_type )
{
FOREACH_ARRAY( listener, listeners_group->listeners )
listener->p_user_data == p_user_data )
{
/* that's our listener */
- free( listener );
ARRAY_REMOVE( listeners_group->listeners,
fe_idx /* This comes from the macro (and that's why
I hate macro) */ );
+#ifdef DEBUG_EVENT
+ msg_Dbg( p_em->p_parent_object,
+ "Detaching '%s' from '%s' event (data %p)",
+ listener->psz_debug_name,
+ ppsz_event_type_to_name[event_type],
+ listener->p_user_data );
+
+ free( listener->psz_debug_name );
+#endif
+ free( listener );
+ vlc_mutex_unlock( &p_em->object_lock );
return VLC_SUCCESS;
}
FOREACH_END()
}
FOREACH_END()
+ vlc_mutex_unlock( &p_em->object_lock );
+
+ msg_Warn( p_em->p_parent_object, "Can't detach to an object event manager event" );
return VLC_EGENERIC;
}
-
-
projects / vlc / blobdiff