1 /*****************************************************************************
2 * vlc.c: the vlc player
3 *****************************************************************************
4 * Copyright (C) 1998-2004 the VideoLAN team
7 * Authors: Vincent Seguin <seguin@via.ecp.fr>
8 * Samuel Hocevar <sam@zoy.org>
9 * Gildas Bazin <gbazin@videolan.org>
10 * Derk-Jan Hartman <hartman at videolan dot org>
11 * Lots of other people, see the libvlc AUTHORS file
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
26 *****************************************************************************/
40 extern void LocaleFree (const char *);
41 extern char *FromLocale (const char *);
44 /*****************************************************************************
46 *****************************************************************************/
49 extern void __wgetmainargs(int *argc, wchar_t ***wargv, wchar_t ***wenviron,
50 int expand_wildcards, int *startupinfo);
51 static inline void Kill(void) { }
58 static void Kill (void);
59 static void *SigHandler (void *set);
62 /*****************************************************************************
63 * main: parse command line, start interface and spawn threads.
64 *****************************************************************************/
65 int main( int i_argc, const char *ppsz_argv[] )
70 if (dlsym (RTLD_NEXT, "sync_file_range") && !dlsym (RTLD_NEXT, "qsort_r"))
72 /* Way too many Linux users have glibc 2.6 that keeps crashing
73 * inside its non-thread-safe dcgettext(). */
75 "***************************************************\n"
76 "*** glibc version with broken libintl detected. ***\n"
77 "*** Messages localization will be disabled. ***\n"
78 "***************************************************\n");
79 setenv ("LC_MESSAGES", "C", 1);
82 setlocale (LC_ALL, "");
85 /* This clutters OSX GUI error logs */
86 fprintf( stderr, "VLC media player %s\n", VLC_Version() );
91 /* Activate malloc checking routines to detect heap corruptions. */
92 putenv( (char*)"MALLOC_CHECK_=2" );
94 /* Disable the ugly Gnome crash dialog so that we properly segfault */
95 putenv( (char *)"GNOME_DISABLE_CRASH_DIALOG=1" );
99 #if defined (HAVE_GETEUID) && !defined (SYS_BEOS)
100 /* FIXME: rootwrap (); */
103 /* Create a libvlc structure */
104 i_ret = VLC_Create();
110 #if !defined(WIN32) && !defined(UNDER_CE)
111 /* Synchronously intercepted POSIX signals.
113 * In a threaded program such as VLC, the only sane way to handle signals
114 * is to block them in all thread but one - this is the only way to
115 * predict which thread will receive them. If any piece of code depends
116 * on delivery of one of this signal it is intrinsically not thread-safe
117 * and MUST NOT be used in VLC, whether we like it or not.
118 * There is only one exception: if the signal is raised with
119 * pthread_kill() - we do not use this in LibVLC but some pthread
120 * implementations use them internally. You should really use conditions
121 * for thread synchronization anyway.
123 * Signal that request a clean shutdown, and force an unclean shutdown
124 * if they are triggered again 2+ seconds later.
125 * We have to handle SIGTERM cleanly because of daemon mode.
126 * Note that we set the signals after the vlc_create call. */
127 static const int exitsigs[] = { SIGINT, SIGHUP, SIGQUIT, SIGTERM };
128 /* Signals that cause a no-op:
129 * - SIGALRM should not happen, but lets stay on the safe side.
130 * - SIGPIPE might happen with sockets and would crash VLC. It MUST be
131 * blocked by any LibVLC-dependant application, in addition to VLC.
132 * - SIGCHLD is comes after exec*() (such as httpd CGI support) and must
133 * be dequeued to cleanup zombie processes.
135 static const int dummysigs[] = { SIGALRM, SIGPIPE, SIGCHLD };
141 for (unsigned i = 0; i < sizeof (exitsigs) / sizeof (exitsigs[0]); i++)
142 sigaddset (&set, exitsigs[i]);
143 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
144 sigaddset (&set, dummysigs[i]);
146 /* Block all these signals */
147 pthread_sigmask (SIG_BLOCK, &set, NULL);
149 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
150 sigdelset (&set, dummysigs[i]);
152 pthread_create (&sigth, NULL, SigHandler, &set);
156 /* Replace argv[1..n] with unicode for Windows NT and above */
157 if( GetVersion() < 0x80000000 )
159 wchar_t **wargv, **wenvp;
162 __wgetmainargs(&i_wargc, &wargv, &wenvp, 0, &si);
164 for( i = 0; i < i_wargc; i++ )
166 int len = WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, NULL, 0, NULL, NULL);
170 char *utf8arg = (char *)malloc(len);
171 if( NULL != utf8arg )
173 WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, utf8arg, len, NULL, NULL);
174 ppsz_argv[i] = utf8arg;
184 ppsz_argv[i] = strdup ("");
197 for (int i = 0; i < i_argc; i++)
198 if ((ppsz_argv[i] = FromLocale (ppsz_argv[i])) == NULL)
202 /* Initialize libvlc */
203 i_ret = VLC_Init( 0, i_argc, ppsz_argv );
207 return i_ret == VLC_EEXITSUCCESS ? 0 : -i_ret;
210 i_ret = VLC_AddIntf( 0, NULL, VLC_TRUE, VLC_TRUE );
212 /* Finish the threads */
217 /* Destroy the libvlc structure */
220 for (int i = 0; i < i_argc; i++)
221 LocaleFree (ppsz_argv[i]);
223 #if !defined(WIN32) && !defined(UNDER_CE)
224 pthread_cancel (sigth);
226 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
227 * cancellation point, so we throw a dummy quit signal to end
228 * sigwait() in the sigth thread */
229 pthread_kill (sigth, SIGQUIT);
231 pthread_join (sigth, NULL);
237 #if !defined(WIN32) && !defined(UNDER_CE)
238 /*****************************************************************************
239 * SigHandler: system signal handler
240 *****************************************************************************
241 * This thread receives all handled signals synchronously.
242 * It tries to end the program in a clean way.
243 *****************************************************************************/
244 static void *SigHandler (void *data)
246 const sigset_t *exitset = (sigset_t *)data;
248 time_t abort_time = 0;
250 pthread_sigmask (SIG_BLOCK, exitset, &fullset);
255 if( sigwait (&fullset, &i_signal) != 0 )
259 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
260 * cancellation point */
261 pthread_testcancel();
264 if (!sigismember (exitset, i_signal))
265 continue; /* Ignore "dummy" signals */
267 /* Once a signal has been trapped, the termination sequence will be
268 * armed and subsequent signals will be ignored to avoid sending
269 * signals to a libvlc structure having been destroyed */
271 pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
277 fprintf (stderr, "signal %d received, terminating vlc - do it "
278 "again in case it gets stuck\n", i_signal);
280 /* Acknowledge the signal received */
284 if (time (NULL) <= abort_time)
286 /* If user asks again more than 2 seconds later, die badly */
287 pthread_sigmask (SIG_UNBLOCK, exitset, NULL);
288 fprintf (stderr, "user insisted too much, dying badly\n");
291 pthread_setcancelstate (state, NULL);
297 static void KillOnce (void)
302 static void Kill (void)
304 static pthread_once_t once = PTHREAD_ONCE_INIT;
305 pthread_once (&once, KillOnce);
310 #if defined(UNDER_CE)
311 # if defined( _MSC_VER ) && defined( UNDER_CE )
312 # include "vlc_common.h"
314 /*****************************************************************************
315 * WinMain: parse command line, start interface and spawn threads. (WinCE only)
316 *****************************************************************************/
317 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
318 LPTSTR lpCmdLine, int nCmdShow )
320 char **argv, psz_cmdline[MAX_PATH];
323 WideCharToMultiByte( CP_ACP, 0, lpCmdLine, -1,
324 psz_cmdline, MAX_PATH, NULL, NULL );
326 argv = vlc_parse_cmdline( psz_cmdline, &argc );
327 argv = realloc( argv, (argc + 1) * sizeof(char *) );
328 if( !argv ) return -1;
330 if( argc ) memmove( argv + 1, argv, argc * sizeof(char *) );
331 argv[0] = ""; /* Fake program path */
333 i_ret = main( argc + 1, argv );
335 /* No need to free the argv memory */