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 *****************************************************************************/
44 extern void LocaleFree (const char *);
45 extern char *FromLocale (const char *);
48 /*****************************************************************************
50 *****************************************************************************/
53 extern void __wgetmainargs(int *argc, wchar_t ***wargv, wchar_t ***wenviron,
54 int expand_wildcards, int *startupinfo);
55 static inline void Kill(void) { }
62 static void Kill (void);
63 static void *SigHandler (void *set);
66 /*****************************************************************************
67 * main: parse command line, start interface and spawn threads.
68 *****************************************************************************/
69 int main( int i_argc, const char *ppsz_argv[] )
74 if (dlsym (RTLD_NEXT, "inet6_rth_add") && !dlsym (RTLD_NEXT, "qsort_r"))
76 /* Way too many Linux users have glibc 2.5-2.7 that keeps crashing
77 * inside its non-thread-safe dcgettext(). */
78 /* Hopefully glibc 2.8 will eventually work, not sure though */
80 "***************************************************\n"
81 "*** glibc version with broken libintl detected. ***\n"
82 "*** Messages localization will be disabled. ***\n"
83 "***************************************************\n");
84 setenv ("LC_MESSAGES", "C", 1);
87 setlocale (LC_ALL, "");
90 /* This clutters OSX GUI error logs */
91 fprintf( stderr, "VLC media player %s\n", VLC_Version() );
96 /* Activate malloc checking routines to detect heap corruptions. */
97 putenv( (char*)"MALLOC_CHECK_=2" );
99 putenv( (char*)"MallocErrorAbort=crash_my_baby_crash" );
102 /* Disable the ugly Gnome crash dialog so that we properly segfault */
103 putenv( (char *)"GNOME_DISABLE_CRASH_DIALOG=1" );
107 #if defined (HAVE_GETEUID) && !defined (SYS_BEOS)
108 /* FIXME: rootwrap (); */
111 /* Create a libvlc structure */
112 i_ret = VLC_Create();
118 #if !defined(WIN32) && !defined(UNDER_CE)
119 /* Synchronously intercepted POSIX signals.
121 * In a threaded program such as VLC, the only sane way to handle signals
122 * is to block them in all thread but one - this is the only way to
123 * predict which thread will receive them. If any piece of code depends
124 * on delivery of one of this signal it is intrinsically not thread-safe
125 * and MUST NOT be used in VLC, whether we like it or not.
126 * There is only one exception: if the signal is raised with
127 * pthread_kill() - we do not use this in LibVLC but some pthread
128 * implementations use them internally. You should really use conditions
129 * for thread synchronization anyway.
131 * Signal that request a clean shutdown, and force an unclean shutdown
132 * if they are triggered again 2+ seconds later.
133 * We have to handle SIGTERM cleanly because of daemon mode.
134 * Note that we set the signals after the vlc_create call. */
135 static const int exitsigs[] = { SIGINT, SIGHUP, SIGQUIT, SIGTERM };
136 /* Signals that cause a no-op:
137 * - SIGALRM should not happen, but lets stay on the safe side.
138 * - SIGPIPE might happen with sockets and would crash VLC. It MUST be
139 * blocked by any LibVLC-dependant application, in addition to VLC.
140 * - SIGCHLD is comes after exec*() (such as httpd CGI support) and must
141 * be dequeued to cleanup zombie processes.
143 static const int dummysigs[] = { SIGALRM, SIGPIPE, SIGCHLD };
149 for (unsigned i = 0; i < sizeof (exitsigs) / sizeof (exitsigs[0]); i++)
150 sigaddset (&set, exitsigs[i]);
151 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
152 sigaddset (&set, dummysigs[i]);
154 /* Block all these signals */
155 pthread_sigmask (SIG_BLOCK, &set, NULL);
157 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
158 sigdelset (&set, dummysigs[i]);
160 pthread_create (&sigth, NULL, SigHandler, &set);
164 /* Replace argv[1..n] with unicode for Windows NT and above */
165 if( GetVersion() < 0x80000000 )
167 wchar_t **wargv, **wenvp;
170 __wgetmainargs(&i_wargc, &wargv, &wenvp, 0, &si);
172 for( i = 0; i < i_wargc; i++ )
174 int len = WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, NULL, 0, NULL, NULL);
178 char *utf8arg = (char *)malloc(len);
179 if( NULL != utf8arg )
181 WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, utf8arg, len, NULL, NULL);
182 ppsz_argv[i] = utf8arg;
192 ppsz_argv[i] = strdup ("");
205 for (int i = 0; i < i_argc; i++)
206 if ((ppsz_argv[i] = FromLocale (ppsz_argv[i])) == NULL)
210 /* Initialize libvlc */
211 i_ret = VLC_Init( 0, i_argc, ppsz_argv );
215 return i_ret == VLC_EEXITSUCCESS ? 0 : -i_ret;
218 i_ret = VLC_AddIntf( 0, NULL, true, true );
220 /* Finish the threads */
225 /* Destroy the libvlc structure */
228 for (int i = 0; i < i_argc; i++)
229 LocaleFree (ppsz_argv[i]);
231 #if !defined(WIN32) && !defined(UNDER_CE)
232 pthread_cancel (sigth);
234 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
235 * cancellation point, so we throw a dummy quit signal to end
236 * sigwait() in the sigth thread */
237 pthread_kill (sigth, SIGQUIT);
239 pthread_join (sigth, NULL);
245 #if !defined(WIN32) && !defined(UNDER_CE)
246 /*****************************************************************************
247 * SigHandler: system signal handler
248 *****************************************************************************
249 * This thread receives all handled signals synchronously.
250 * It tries to end the program in a clean way.
251 *****************************************************************************/
252 static void *SigHandler (void *data)
254 const sigset_t *exitset = (sigset_t *)data;
256 time_t abort_time = 0;
258 pthread_sigmask (SIG_BLOCK, exitset, &fullset);
263 if( sigwait (&fullset, &i_signal) != 0 )
267 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
268 * cancellation point */
269 pthread_testcancel();
272 if (!sigismember (exitset, i_signal))
273 continue; /* Ignore "dummy" signals */
275 /* Once a signal has been trapped, the termination sequence will be
276 * armed and subsequent signals will be ignored to avoid sending
277 * signals to a libvlc structure having been destroyed */
279 pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
280 if (abort_time == 0 || time (NULL) > abort_time)
285 fprintf (stderr, "signal %d received, terminating vlc - do it "
286 "again quickly in case it gets stuck\n", i_signal);
288 /* Acknowledge the signal received */
291 else /* time (NULL) <= abort_time */
293 /* If user asks again more than 2 seconds later, die badly */
294 pthread_sigmask (SIG_UNBLOCK, exitset, NULL);
295 fprintf (stderr, "user insisted too much, dying badly\n");
297 /* On Mac OS X, use exit(-1) as it doesn't trigger
298 * backtrace generation, whereas abort() does.
299 * The backtrace generation trigger a Crash Dialog
300 * And takes way too much time, which is not what
307 pthread_setcancelstate (state, NULL);
313 static void KillOnce (void)
318 static void Kill (void)
320 static pthread_once_t once = PTHREAD_ONCE_INIT;
321 pthread_once (&once, KillOnce);
326 #if defined(UNDER_CE)
327 # if defined( _MSC_VER ) && defined( UNDER_CE )
328 # include "vlc_common.h"
330 /*****************************************************************************
331 * WinMain: parse command line, start interface and spawn threads. (WinCE only)
332 *****************************************************************************/
333 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
334 LPTSTR lpCmdLine, int nCmdShow )
336 char **argv, psz_cmdline[MAX_PATH];
339 WideCharToMultiByte( CP_ACP, 0, lpCmdLine, -1,
340 psz_cmdline, MAX_PATH, NULL, NULL );
342 argv = vlc_parse_cmdline( psz_cmdline, &argc );
343 argv = realloc( argv, (argc + 1) * sizeof(char *) );
344 if( !argv ) return -1;
346 if( argc ) memmove( argv + 1, argv, argc * sizeof(char *) );
347 argv[0] = ""; /* Fake program path */
349 i_ret = main( argc + 1, argv );
351 /* No need to free the argv memory */