/*****************************************************************************
* screensaver.c : disable screen savers when VLC is playing
*****************************************************************************
- * Copyright (C) 2006 the VideoLAN team
+ * Copyright (C) 2006-2009 the VideoLAN team
* $Id$
*
* Authors: Sam Hocevar <sam@zoy.org>
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc_input.h>
-#include <vlc_interface.h>
-#include <vlc_aout.h>
-#include <vlc_vout.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_inhibit.h>
+#include <vlc_fs.h>
#include <sys/types.h>
#include <sys/wait.h>
-#include <unistd.h>
-
-#ifdef HAVE_DBUS
-
-#define DBUS_API_SUBJECT_TO_CHANGE
-#include <dbus/dbus.h>
-
-#define GS_SERVICE "org.gnome.ScreenSaver"
-#define GS_PATH "/org/gnome/ScreenSaver"
-#define GS_INTERFACE "org.gnome.ScreenSaver"
-
-#endif
-
-/* this is for dbus < 0.3 */
-#ifndef HAVE_DBUS_1
-#define dbus_bus_name_has_owner(connection, name, err) dbus_bus_service_exists(connection, name, err)
-#endif
+#include <fcntl.h>
+#include <signal.h>
+#include <spawn.h>
/*****************************************************************************
* Local prototypes
static int Activate ( vlc_object_t * );
static void Deactivate ( vlc_object_t * );
-static void Run ( intf_thread_t *p_intf );
-
-#ifdef HAVE_DBUS
+static void Timer( void * );
+static void Inhibit( vlc_inhibit_t *, bool );
-static DBusConnection * dbus_init( intf_thread_t *p_intf );
-static void poke_screensaver( intf_thread_t *p_intf,
- DBusConnection *p_connection );
-static void screensaver_send_message_void ( intf_thread_t *p_intf,
- DBusConnection *p_connection,
- const char *psz_name );
-static vlc_bool_t screensaver_is_running( DBusConnection *p_connection );
-
-
-struct intf_sys_t
+struct vlc_inhibit_sys
{
- DBusConnection *p_connection;
+ vlc_timer_t timer;
+ posix_spawn_file_actions_t actions;
+ posix_spawnattr_t attr;
+ int nullfd;
};
-#endif
+extern char **environ;
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-vlc_module_begin();
- set_description( _("X Screensaver disabler") );
- set_capability( "interface", 0 );
- set_callbacks( Activate, Deactivate );
-vlc_module_end();
+vlc_module_begin ()
+ set_description( N_("X Screensaver disabler") )
+ set_capability( "inhibit", 5 )
+ set_callbacks( Activate, Deactivate )
+vlc_module_end ()
/*****************************************************************************
* Activate: initialize and create stuff
*****************************************************************************/
static int Activate( vlc_object_t *p_this )
{
- intf_thread_t *p_intf = (intf_thread_t*)p_this;
+ vlc_inhibit_t *p_ih = (vlc_inhibit_t*)p_this;
+ vlc_inhibit_sys_t *p_sys;
- p_intf->pf_run = Run;
+ p_sys = p_ih->p_sys = malloc( sizeof( *p_sys ) );
+ if( !p_sys )
+ return VLC_ENOMEM;
-#ifdef HAVE_DBUS
- p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
- if( !p_intf->p_sys ) return VLC_ENOMEM;
-#endif
+ if( vlc_timer_create( &p_sys->timer, Timer, p_ih ) )
+ {
+ free( p_sys );
+ return VLC_ENOMEM;
+ }
+ p_ih->inhibit = Inhibit;
+
+ int fd = vlc_open ("/dev/null", O_WRONLY);
+ posix_spawn_file_actions_init (&p_sys->actions);
+ if (fd != -1)
+ {
+ posix_spawn_file_actions_adddup2 (&p_sys->actions, fd, 1);
+ posix_spawn_file_actions_adddup2 (&p_sys->actions, fd, 2);
+ posix_spawn_file_actions_addclose (&p_sys->actions, fd);
+ }
+ p_sys->nullfd = fd;
+ sigset_t set;
+ posix_spawnattr_init (&p_sys->attr);
+ sigemptyset (&set);
+ posix_spawnattr_setsigmask (&p_sys->attr, &set);
+
return VLC_SUCCESS;
}
*****************************************************************************/
static void Deactivate( vlc_object_t *p_this )
{
-#ifdef HAVE_DBUS
- intf_thread_t *p_intf = (intf_thread_t*)p_this;
-
- if( p_intf->p_sys->p_connection )
- {
-# ifdef HAVE_DBUS_2
- dbus_connection_unref( p_intf->p_sys->p_connection );
-# else
- dbus_connection_disconnect( p_intf->p_sys->p_connection );
-# endif
- }
+ vlc_inhibit_t *p_ih = (vlc_inhibit_t*)p_this;
+ vlc_inhibit_sys_t *p_sys = p_ih->p_sys;
+
+ vlc_timer_destroy( p_sys->timer );
+ if (p_sys->nullfd != -1)
+ close (p_sys->nullfd);
+ posix_spawnattr_destroy (&p_sys->attr);
+ posix_spawn_file_actions_destroy (&p_sys->actions);
+ free( p_sys );
+}
- if( p_intf->p_sys )
- {
- free( p_intf->p_sys );
- p_intf->p_sys = NULL;
- }
-#endif
+static void Inhibit( vlc_inhibit_t *p_ih, bool suspend )
+{
+ mtime_t d = suspend ? 30*CLOCK_FREQ : 0;
+ vlc_timer_schedule( p_ih->p_sys->timer, false, d, d );
}
/*****************************************************************************
* Execute: Spawns a process using execv()
*****************************************************************************/
-static void Execute( intf_thread_t *p_this, const char *const *ppsz_args )
+static void Execute (vlc_inhibit_t *p_ih, const char *const *argv)
{
- pid_t pid = fork();
- switch( pid )
- {
- case 0: /* we're the child */
- {
- sigset_t set;
- sigemptyset (&set);
- pthread_sigmask (SIG_SETMASK, &set, NULL);
+ vlc_inhibit_sys_t *p_sys = p_ih->p_sys;
+ pid_t pid;
- /* We don't want output */
- freopen( "/dev/null", "w", stdout );
- freopen( "/dev/null", "w", stderr );
- execv( ppsz_args[0] , (char *const *)ppsz_args );
- /* If the file we want to execute doesn't exist we exit() */
- exit( EXIT_FAILURE );
- }
- case -1: /* we're the error */
- msg_Dbg( p_this, "Couldn't fork() while launching %s",
- ppsz_args[0] );
- break;
- default: /* we're the parent */
- /* Wait for the child to exit.
- * We will not deadlock because we ran "/bin/sh &" */
- while( waitpid( pid, NULL, 0 ) != pid);
- break;
+ if (posix_spawn (&pid, argv[0], &p_sys->actions, &p_sys->attr,
+ (char **)argv, environ) == 0)
+ {
+ while (waitpid (pid, NULL, 0) != pid);
}
}
* This part of the module is in a separate thread so that we do not have
* too much system() overhead.
*****************************************************************************/
-static void Run( intf_thread_t *p_intf )
-{
- vlc_object_lock( p_intf );
-
-#ifdef HAVE_DBUS
- p_intf->p_sys->p_connection = dbus_init( p_intf );
-#endif
-
- while( vlc_object_alive( p_intf ) )
- {
- vlc_object_t *p_vout;
-
- /* Check screensaver every 30 seconds */
- if( vlc_object_timedwait( p_intf, mdate() + 30000000 ) < 0 )
- continue;
-
- p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
-
- /* If there is a video output, disable xscreensaver */
- if( p_vout )
- {
- input_thread_t *p_input;
- p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );
- vlc_object_release( p_vout );
- if( p_input )
- {
- if( PLAYING_S == p_input->i_state )
- {
- /* http://www.jwz.org/xscreensaver/faq.html#dvd */
- const char *const ppsz_xsargs[] = { "/bin/sh", "-c",
- "xscreensaver-command -deactivate &", (char*)NULL };
- Execute( p_intf, ppsz_xsargs );
-
- /* If we have dbus support, let's communicate directly
- with gnome-screensave else, run
- gnome-screensaver-command */
-#ifdef HAVE_DBUS
- poke_screensaver( p_intf, p_intf->p_sys->p_connection );
-#else
- const char *const ppsz_gsargs[] = { "/bin/sh", "-c",
- "gnome-screensaver-command --poke &", (char*)NULL };
- Execute( p_intf, ppsz_gsargs );
-#endif
- /* FIXME: add support for other screensavers */
- }
- vlc_object_release( p_input );
- }
- }
- }
- vlc_object_unlock( p_intf );
-}
-
-#ifdef HAVE_DBUS
-
-static DBusConnection * dbus_init( intf_thread_t *p_intf )
+static void Timer( void *data )
{
- DBusError dbus_error;
+ vlc_inhibit_t *p_ih = data;
- dbus_error_init (&dbus_error);
- DBusConnection * p_connection = dbus_bus_get( DBUS_BUS_SESSION, &dbus_error );
+ /* If there is a playing video output, disable xscreensaver */
+ /* http://www.jwz.org/xscreensaver/faq.html#dvd */
+ const char *const ppsz_xsargs[] = { "/bin/sh", "-c",
+ "xscreensaver-command -deactivate &", (char*)NULL };
+ Execute (p_ih, ppsz_xsargs);
- if ( !p_connection )
- {
- msg_Warn( p_intf, "failed to connect to the D-BUS daemon: %s",
- dbus_error.message);
- dbus_error_free( &dbus_error );
- return NULL;
- }
-
- return p_connection;
+ const char *const ppsz_gsargs[] = { "/bin/sh", "-c",
+ "gnome-screensaver-command --poke &", (char*)NULL };
+ Execute (p_ih, ppsz_gsargs);
}
-
-static void poke_screensaver( intf_thread_t *p_intf,
- DBusConnection *p_connection )
-{
- if( screensaver_is_running( p_connection ) )
- {
-# ifdef SCREENSAVER_DEBUG
- msg_Dbg( p_intf, "found a running gnome-screensaver instance" );
-# endif
- /* gnome-screensaver changed it's D-Bus interface, so we need both */
- screensaver_send_message_void( p_intf, p_connection, "Poke" );
- screensaver_send_message_void( p_intf, p_connection,
- "SimulateUserActivity" );
- }
-# ifdef SCREENSAVER_DEBUG
- else
- {
- msg_Dbg( p_intf, "found no running gnome-screensaver instance" );
- }
-# endif
-}
-
-static void screensaver_send_message_void ( intf_thread_t *p_intf,
- DBusConnection *p_connection,
- const char *psz_name )
-{
- DBusMessage *p_message;
-
- if( !p_connection || !psz_name ) return;
-
- p_message = dbus_message_new_method_call( GS_SERVICE, GS_PATH,
- GS_INTERFACE, psz_name );
- if( p_message == NULL )
- {
- msg_Err( p_intf, "DBUS initialization failed: message initialization" );
- return;
- }
-
- if( !dbus_connection_send( p_connection, p_message, NULL ) )
- {
- msg_Err( p_intf, "DBUS communication failed" );
- }
-
- dbus_connection_flush( p_connection );
-
- dbus_message_unref( p_message );
-}
-
-static vlc_bool_t screensaver_is_running( DBusConnection *p_connection )
-{
- DBusError error;
- vlc_bool_t b_return;
-
- if( !p_connection ) return VLC_FALSE;
-
- dbus_error_init( &error );
- b_return = dbus_bus_name_has_owner( p_connection, GS_SERVICE, &error );
- if( dbus_error_is_set( &error ) ) dbus_error_free (&error);
-
- return b_return;
-}
-
-#endif
-
projects / vlc / blobdiff