/*****************************************************************************
* StateChange: callback on input "state"
*****************************************************************************/
static int StateChange( intf_thread_t *p_intf )
{
intf_sys_t *p_sys = p_intf->p_sys;
playlist_t *p_playlist = p_sys->p_playlist;
input_thread_t *p_input;
input_item_t *p_item;
if( p_intf->p_sys->b_dead )
return VLC_SUCCESS;
UpdateCaps( p_intf );
if( !p_sys->b_meta_read && p_sys->i_playing_state == 0)
{
p_input = playlist_CurrentInput( p_playlist );
if( p_input )
{
p_item = input_GetItem( p_input );
if( p_item )
{
p_sys->b_meta_read = true;
TrackChangeEmit( p_intf, p_item );
}
vlc_object_release( p_input );
}
}
StatusChangeEmit( p_intf );
return VLC_SUCCESS;
}
/**
* ProcessEvents() reacts to a list of events originating from other VLC threads
*
* This function must be called with p_sys->lock unlocked
*
* @param intf_thread_t *p_intf This interface thread state
* @param callback_info_t *p_events the list of events to process
*/
static void ProcessEvents( intf_thread_t *p_intf,
callback_info_t **p_events, int i_events )
{
for( int i = 0; i < i_events; i++ )
{
switch( p_events[i]->signal )
{
case SIGNAL_ITEM_CURRENT:
TrackChange( p_intf );
break;
case SIGNAL_INTF_CHANGE:
case SIGNAL_PLAYLIST_ITEM_APPEND:
case SIGNAL_PLAYLIST_ITEM_DELETED:
TrackListChangeEmit( p_intf,
p_events[i]->signal,
p_events[i]->i_node );
break;
case SIGNAL_RANDOM:
case SIGNAL_REPEAT:
case SIGNAL_LOOP:
StatusChangeEmit( p_intf );
break;
case SIGNAL_STATE:
StateChange( p_intf );
break;
case SIGNAL_INPUT_METADATA:
break;
default:
assert(0);
}
free( p_events[i] );
}
}
static void Run ( intf_thread_t *p_intf )
{
for( ;; )
{
if( dbus_connection_get_dispatch_status(p_intf->p_sys->p_conn)
== DBUS_DISPATCH_COMPLETE )
msleep( INTF_IDLE_SLEEP );
int canc = vlc_savecancel();
dbus_connection_read_write_dispatch( p_intf->p_sys->p_conn, 0 );
/* Get the list of events to process
*
* We can't keep the lock on p_intf->p_sys->p_events, else we risk a
* deadlock:
* The signal functions could lock mutex X while p_events is locked;
* While some other function in vlc (playlist) might lock mutex X
* and then set a variable which would call AllCallback(), which itself
* needs to lock p_events to add a new event.
*/
vlc_mutex_lock( &p_intf->p_sys->lock );
int i_events = vlc_array_count( p_intf->p_sys->p_events );
callback_info_t* info[i_events];
for( int i = i_events - 1; i >= 0; i-- )
{
info[i] = vlc_array_item_at_index( p_intf->p_sys->p_events, i );
vlc_array_remove( p_intf->p_sys->p_events, i );
}
vlc_mutex_unlock( &p_intf->p_sys->lock );
for( int i = 0; i < i_events; i++ )
{
switch( info[i]->signal )
{
case SIGNAL_ITEM_CURRENT:
TrackChange( p_intf );
break;
case SIGNAL_INTF_CHANGE:
case SIGNAL_PLAYLIST_ITEM_APPEND:
case SIGNAL_PLAYLIST_ITEM_DELETED:
TrackListChangeEmit( p_intf, info[i]->signal, info[i]->i_node );
break;
case SIGNAL_RANDOM:
case SIGNAL_REPEAT:
case SIGNAL_LOOP:
StatusChangeEmit( p_intf );
break;
case SIGNAL_STATE:
StateChange( p_intf, info[i]->i_input_state );
break;
default:
assert(0);
}
free( info[i] );
}
vlc_restorecancel( canc );
}
}
