/*****************************************************************************
- * vlc.c: the vlc player
+ * vlc.c: the VLC player
*****************************************************************************
- * Copyright (C) 1998-2001 VideoLAN
- * $Id: vlc.c,v 1.8 2002/08/08 00:35:11 sam Exp $
+ * Copyright (C) 1998-2008 the VideoLAN team
+ * $Id$
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
- * Gildas Bazin <gbazin@netcourrier.com>
+ * Gildas Bazin <gbazin@videolan.org>
+ * Derk-Jan Hartman <hartman at videolan dot org>
+ * Lots of other people, see the libvlc AUTHORS file
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
-#include <stdio.h> /* fprintf() */
-#include <stdlib.h> /* putenv(), strtol(), */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
#include <vlc/vlc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <locale.h>
+
+
+/* Explicit HACK */
+extern void LocaleFree (const char *);
+extern char *FromLocale (const char *);
+
+# include <signal.h>
+# include <time.h>
+# include <pthread.h>
+
+static void *SigHandler (void *set);
/*****************************************************************************
- * main: parse command line, start interface and spawn threads
+ * main: parse command line, start interface and spawn threads.
*****************************************************************************/
-int main(int i_argc, char *ppsz_argv[])
+int main( int i_argc, const char *ppsz_argv[] )
{
- vlc_error_t err;
+ int i_ret;
+
+ setlocale (LC_ALL, "");
+
+#ifndef __APPLE__
+ /* This clutters OSX GUI error logs */
+ fprintf( stderr, "VLC media player %s\n", libvlc_get_version() );
+#endif
-#ifdef SYS_LINUX
-# ifdef DEBUG
+#ifdef HAVE_PUTENV
+# ifndef NDEBUG
/* Activate malloc checking routines to detect heap corruptions. */
- putenv( "MALLOC_CHECK_=2" );
+ putenv( (char*)"MALLOC_CHECK_=2" );
+# ifdef __APPLE__
+ putenv( (char*)"MallocErrorAbort=crash_my_baby_crash" );
+# endif
/* Disable the ugly Gnome crash dialog so that we properly segfault */
- putenv( "GNOME_DISABLE_CRASH_DIALOG=1" );
+ putenv( (char *)"GNOME_DISABLE_CRASH_DIALOG=1" );
# endif
#endif
- /* Create the vlc structure */
- err = vlc_create();
- if( err != VLC_SUCCESS )
+#if defined (HAVE_GETEUID) && !defined (SYS_BEOS)
+ /* FIXME: rootwrap (); */
+#endif
+
+ /* Synchronously intercepted POSIX signals.
+ *
+ * In a threaded program such as VLC, the only sane way to handle signals
+ * is to block them in all thread but one - this is the only way to
+ * predict which thread will receive them. If any piece of code depends
+ * on delivery of one of this signal it is intrinsically not thread-safe
+ * and MUST NOT be used in VLC, whether we like it or not.
+ * There is only one exception: if the signal is raised with
+ * pthread_kill() - we do not use this in LibVLC but some pthread
+ * implementations use them internally. You should really use conditions
+ * for thread synchronization anyway.
+ *
+ * Signal that request a clean shutdown, and force an unclean shutdown
+ * if they are triggered again 2+ seconds later.
+ * We have to handle SIGTERM cleanly because of daemon mode.
+ * Note that we set the signals after the vlc_create call. */
+ static const int exitsigs[] = { SIGINT, SIGHUP, SIGQUIT, SIGTERM };
+ /* Signals that cause a no-op:
+ * - SIGALRM should not happen, but lets stay on the safe side.
+ * - SIGPIPE might happen with sockets and would crash VLC. It MUST be
+ * blocked by any LibVLC-dependent application, in addition to VLC.
+ * - SIGCHLD is comes after exec*() (such as httpd CGI support) and must
+ * be dequeued to cleanup zombie processes.
+ */
+ static const int dummysigs[] = { SIGALRM, SIGPIPE, SIGCHLD };
+
+ sigset_t set;
+ pthread_t sigth;
+
+ sigemptyset (&set);
+ for (unsigned i = 0; i < sizeof (exitsigs) / sizeof (exitsigs[0]); i++)
+ sigaddset (&set, exitsigs[i]);
+ for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
+ sigaddset (&set, dummysigs[i]);
+
+ /* Block all these signals */
+ pthread_sigmask (SIG_BLOCK, &set, NULL);
+
+ for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
+ sigdelset (&set, dummysigs[i]);
+
+ pthread_create (&sigth, NULL, SigHandler, &set);
+
+ /* Note that FromLocale() can be used before libvlc is initialized */
+ for (int i = 0; i < i_argc; i++)
+ if ((ppsz_argv[i] = FromLocale (ppsz_argv[i])) == NULL)
+ return 1; // BOOM!
+
+ libvlc_exception_t ex;
+ libvlc_exception_init (&ex);
+
+ /* Initialize libvlc */
+ int i_argc_real = i_argc ? i_argc - 1 : 0;
+ const char **ppsz_argv_real = i_argc ? &ppsz_argv[1] : ppsz_argv;
+ libvlc_instance_t *vlc = libvlc_new (i_argc_real, ppsz_argv_real, &ex);
+
+ if (vlc != NULL)
{
- return err;
+ libvlc_add_intf (vlc, NULL, &ex);
+ libvlc_wait (vlc);
+ libvlc_release (vlc);
}
+ i_ret = libvlc_exception_raised (&ex);
+ libvlc_exception_clear (&ex);
+
+ for (int i = 0; i < i_argc; i++)
+ LocaleFree (ppsz_argv[i]);
- /* Initialize vlc */
- err = vlc_init( i_argc, ppsz_argv );
- if( err != VLC_SUCCESS )
+ pthread_cancel (sigth);
+# ifdef __APPLE__
+ /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
+ * cancellation point, so we throw a dummy quit signal to end
+ * sigwait() in the sigth thread */
+ pthread_kill (sigth, SIGQUIT);
+# endif
+ pthread_join (sigth, NULL);
+
+ return i_ret;
+}
+
+/*****************************************************************************
+ * SigHandler: system signal handler
+ *****************************************************************************
+ * This thread receives all handled signals synchronously.
+ * It tries to end the program in a clean way.
+ *****************************************************************************/
+static void *SigHandler (void *data)
+{
+ const sigset_t *exitset = (sigset_t *)data;
+ sigset_t fullset;
+ time_t abort_time = 0;
+
+ pthread_sigmask (SIG_BLOCK, exitset, &fullset);
+
+ for (;;)
{
- vlc_destroy();
- return err;
- }
+ int i_signal, state;
+ if( sigwait (&fullset, &i_signal) != 0 )
+ continue;
- /* Run vlc, in non-blocking mode */
- err = vlc_run();
-
- /* Add background interfaces */
-#if 0
- { int i; for( i=10; i--; ) vlc_add_intf( NULL, "dummy", 0 ); }
- vlc_add_intf( NULL, "dummy", VLC_FALSE );
- vlc_add_intf( NULL, "logger", VLC_FALSE );
- vlc_add_intf( NULL, "xosd", VLC_FALSE );
- vlc_add_intf( NULL, "gtk", VLC_FALSE );
- vlc_add_intf( NULL, "kde", VLC_FALSE );
- vlc_add_intf( "rc", VLC_FALSE );
+#ifdef __APPLE__
+ /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
+ * cancellation point */
+ pthread_testcancel();
#endif
- /* Add a blocking interface and keep the return value */
- err = vlc_add_intf( NULL, VLC_TRUE );
+ if (!sigismember (exitset, i_signal))
+ continue; /* Ignore "dummy" signals */
- /* Finish the interface */
- vlc_stop();
+ /* Once a signal has been trapped, the termination sequence will be
+ * armed and subsequent signals will be ignored to avoid sending
+ * signals to a libvlc structure having been destroyed */
- /* Finish all threads */
- vlc_end();
+ pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
+ if (abort_time == 0 || time (NULL) > abort_time)
+ {
+ time (&abort_time);
+ abort_time += 2;
- /* Destroy the vlc structure */
- vlc_destroy();
-
- return err;
+ fprintf (stderr, "signal %d received, terminating vlc - do it "
+ "again quickly in case it gets stuck\n", i_signal);
+ //VLC_Die( 0 );
+ }
+ else /* time (NULL) <= abort_time */
+ {
+ /* If user asks again more than 2 seconds later, die badly */
+ pthread_sigmask (SIG_UNBLOCK, exitset, NULL);
+ fprintf (stderr, "user insisted too much, dying badly\n");
+#ifdef __APPLE__
+ /* On Mac OS X, use exit(-1) as it doesn't trigger
+ * backtrace generation, whereas abort() does.
+ * The backtrace generation trigger a Crash Dialog
+ * And takes way too much time, which is not what
+ * we want. */
+ exit (-1);
+#else
+ abort ();
+#endif
+ }
+ pthread_setcancelstate (state, NULL);
+ }
+ /* Never reached */
}
-
projects / vlc / blobdiff