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, "inet6_rth_add") && !dlsym (RTLD_NEXT, "qsort_r"))
72 /* Way too many Linux users have glibc 2.5-2.7 that keeps crashing
73 * inside its non-thread-safe dcgettext(). */
74 /* Hopefully glibc 2.8 will eventually work, not sure though */
76 "***************************************************\n"
77 "*** glibc version with broken libintl detected. ***\n"
78 "*** Messages localization will be disabled. ***\n"
79 "***************************************************\n");
80 setenv ("LC_MESSAGES", "C", 1);
83 setlocale (LC_ALL, "");
86 /* This clutters OSX GUI error logs */
87 fprintf( stderr, "VLC media player %s\n", VLC_Version() );
92 /* Activate malloc checking routines to detect heap corruptions. */
93 putenv( (char*)"MALLOC_CHECK_=2" );
95 /* Disable the ugly Gnome crash dialog so that we properly segfault */
96 putenv( (char *)"GNOME_DISABLE_CRASH_DIALOG=1" );
100 #if defined (HAVE_GETEUID) && !defined (SYS_BEOS)
101 /* FIXME: rootwrap (); */
104 /* Create a libvlc structure */
105 i_ret = VLC_Create();
111 #if !defined(WIN32) && !defined(UNDER_CE)
112 /* Synchronously intercepted POSIX signals.
114 * In a threaded program such as VLC, the only sane way to handle signals
115 * is to block them in all thread but one - this is the only way to
116 * predict which thread will receive them. If any piece of code depends
117 * on delivery of one of this signal it is intrinsically not thread-safe
118 * and MUST NOT be used in VLC, whether we like it or not.
119 * There is only one exception: if the signal is raised with
120 * pthread_kill() - we do not use this in LibVLC but some pthread
121 * implementations use them internally. You should really use conditions
122 * for thread synchronization anyway.
124 * Signal that request a clean shutdown, and force an unclean shutdown
125 * if they are triggered again 2+ seconds later.
126 * We have to handle SIGTERM cleanly because of daemon mode.
127 * Note that we set the signals after the vlc_create call. */
128 static const int exitsigs[] = { SIGINT, SIGHUP, SIGQUIT, SIGTERM };
129 /* Signals that cause a no-op:
130 * - SIGALRM should not happen, but lets stay on the safe side.
131 * - SIGPIPE might happen with sockets and would crash VLC. It MUST be
132 * blocked by any LibVLC-dependant application, in addition to VLC.
133 * - SIGCHLD is comes after exec*() (such as httpd CGI support) and must
134 * be dequeued to cleanup zombie processes.
136 static const int dummysigs[] = { SIGALRM, SIGPIPE, SIGCHLD };
142 for (unsigned i = 0; i < sizeof (exitsigs) / sizeof (exitsigs[0]); i++)
143 sigaddset (&set, exitsigs[i]);
144 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
145 sigaddset (&set, dummysigs[i]);
147 /* Block all these signals */
148 pthread_sigmask (SIG_BLOCK, &set, NULL);
150 for (unsigned i = 0; i < sizeof (dummysigs) / sizeof (dummysigs[0]); i++)
151 sigdelset (&set, dummysigs[i]);
153 pthread_create (&sigth, NULL, SigHandler, &set);
157 /* Replace argv[1..n] with unicode for Windows NT and above */
158 if( GetVersion() < 0x80000000 )
160 wchar_t **wargv, **wenvp;
163 __wgetmainargs(&i_wargc, &wargv, &wenvp, 0, &si);
165 for( i = 0; i < i_wargc; i++ )
167 int len = WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, NULL, 0, NULL, NULL);
171 char *utf8arg = (char *)malloc(len);
172 if( NULL != utf8arg )
174 WideCharToMultiByte(CP_UTF8, 0, wargv[i], -1, utf8arg, len, NULL, NULL);
175 ppsz_argv[i] = utf8arg;
185 ppsz_argv[i] = strdup ("");
198 for (int i = 0; i < i_argc; i++)
199 if ((ppsz_argv[i] = FromLocale (ppsz_argv[i])) == NULL)
203 /* Initialize libvlc */
204 i_ret = VLC_Init( 0, i_argc, ppsz_argv );
208 return i_ret == VLC_EEXITSUCCESS ? 0 : -i_ret;
211 i_ret = VLC_AddIntf( 0, NULL, VLC_TRUE, VLC_TRUE );
213 /* Finish the threads */
218 /* Destroy the libvlc structure */
221 for (int i = 0; i < i_argc; i++)
222 LocaleFree (ppsz_argv[i]);
224 #if !defined(WIN32) && !defined(UNDER_CE)
225 pthread_cancel (sigth);
227 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
228 * cancellation point, so we throw a dummy quit signal to end
229 * sigwait() in the sigth thread */
230 pthread_kill (sigth, SIGQUIT);
232 pthread_join (sigth, NULL);
238 #if !defined(WIN32) && !defined(UNDER_CE)
239 /*****************************************************************************
240 * SigHandler: system signal handler
241 *****************************************************************************
242 * This thread receives all handled signals synchronously.
243 * It tries to end the program in a clean way.
244 *****************************************************************************/
245 static void *SigHandler (void *data)
247 const sigset_t *exitset = (sigset_t *)data;
249 time_t abort_time = 0;
251 pthread_sigmask (SIG_BLOCK, exitset, &fullset);
256 if( sigwait (&fullset, &i_signal) != 0 )
260 /* In Mac OS X up to 10.4.8 sigwait (among others) is not a pthread
261 * cancellation point */
262 pthread_testcancel();
265 if (!sigismember (exitset, i_signal))
266 continue; /* Ignore "dummy" signals */
268 /* Once a signal has been trapped, the termination sequence will be
269 * armed and subsequent signals will be ignored to avoid sending
270 * signals to a libvlc structure having been destroyed */
272 pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
278 fprintf (stderr, "signal %d received, terminating vlc - do it "
279 "again in case it gets stuck\n", i_signal);
281 /* Acknowledge the signal received */
285 if (time (NULL) <= abort_time)
287 /* If user asks again more than 2 seconds later, die badly */
288 pthread_sigmask (SIG_UNBLOCK, exitset, NULL);
289 fprintf (stderr, "user insisted too much, dying badly\n");
292 pthread_setcancelstate (state, NULL);
298 static void KillOnce (void)
303 static void Kill (void)
305 static pthread_once_t once = PTHREAD_ONCE_INIT;
306 pthread_once (&once, KillOnce);
311 #if defined(UNDER_CE)
312 # if defined( _MSC_VER ) && defined( UNDER_CE )
313 # include "vlc_common.h"
315 /*****************************************************************************
316 * WinMain: parse command line, start interface and spawn threads. (WinCE only)
317 *****************************************************************************/
318 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
319 LPTSTR lpCmdLine, int nCmdShow )
321 char **argv, psz_cmdline[MAX_PATH];
324 WideCharToMultiByte( CP_ACP, 0, lpCmdLine, -1,
325 psz_cmdline, MAX_PATH, NULL, NULL );
327 argv = vlc_parse_cmdline( psz_cmdline, &argc );
328 argv = realloc( argv, (argc + 1) * sizeof(char *) );
329 if( !argv ) return -1;
331 if( argc ) memmove( argv + 1, argv, argc * sizeof(char *) );
332 argv[0] = ""; /* Fake program path */
334 i_ret = main( argc + 1, argv );
336 /* No need to free the argv memory */