src/misc/exit.c

   1 /*****************************************************************************
   2  * exit.c: LibVLC termination event
   3  *****************************************************************************
   4  * Copyright (C) 2009-2010 VLC authors and VideoLAN
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include "config.h"
  23 #endif
  24
  25 #include <vlc_common.h>
  26 #include <vlc_interface.h>
  27 #include "libvlc.h"
  28 #include "../lib/libvlc_internal.h"
  29
  30 void vlc_ExitInit( vlc_exit_t *exit )
  31 {
  32     vlc_mutex_init( &exit->lock );
  33     exit->handler = NULL;
  34     exit->opaque = NULL;
  35 }
  36
  37 void vlc_ExitDestroy( vlc_exit_t *exit )
  38 {
  39     vlc_mutex_destroy( &exit->lock );
  40 }
  41
  42
  43 /**
  44  * Registers a callback for the LibVLC exit event.
  45  */
  46 void libvlc_SetExitHandler( libvlc_int_t *p_libvlc, void (*handler) (void *),
  47                             void *opaque )
  48 {
  49     vlc_exit_t *exit = &libvlc_priv( p_libvlc )->exit;
  50
  51     vlc_mutex_lock( &exit->lock );
  52     exit->handler = handler;
  53     exit->opaque = opaque;
  54     vlc_mutex_unlock( &exit->lock );
  55 }
  56
  57 /**
  58  * Posts an exit signal to LibVLC instance.
  59  * This function should only be called on behalf of the user.
  60  */
  61 void libvlc_Quit( libvlc_int_t *p_libvlc )
  62 {
  63     vlc_exit_t *exit = &libvlc_priv( p_libvlc )->exit;
  64
  65     msg_Dbg( p_libvlc, "exiting" );
  66     vlc_mutex_lock( &exit->lock );
  67     if( exit->handler != NULL )
  68         exit->handler( exit->opaque );
  69     else
  70         msg_Dbg( p_libvlc, "no exit handler" );
  71     vlc_mutex_unlock( &exit->lock );
  72 }