2 Copyright (C) 2001-2006 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <sys/types.h>
29 #include <sigc++/bind.h>
30 #include <gtkmm/settings.h>
32 #include <pbd/error.h>
33 #include <pbd/textreceiver.h>
34 #include <pbd/failed_constructor.h>
35 #include <pbd/pthread_utils.h>
37 #include <jack/jack.h>
39 #include <ardour/version.h>
40 #include <ardour/ardour.h>
41 #include <ardour/audioengine.h>
43 #include <gtkmm/main.h>
44 #include <gtkmm2ext/popup.h>
45 #include <gtkmm2ext/utils.h>
48 #include "ardour_ui.h"
54 using namespace GTK_ARDOUR;
55 using namespace ARDOUR;
58 TextReceiver text_receiver ("ardour");
60 extern int curvetest (string);
62 static ARDOUR_UI *ui = 0;
71 msg = _("ardour is killing itself for a clean exit\n");
72 write (1, msg, strlen (msg));
73 /* drastic, but perhaps necessary */
74 kill (-getpgrp(), SIGKILL);
80 msg = _("stopping user interface\n");
81 write (1, msg, strlen (msg));
85 pthread_cancel_all ();
98 /* XXX its doubtful that snprintf() is async-safe */
99 n = snprintf (buf, sizeof(buf), _("%d(%d): received signal %d\n"), getpid(), (int) pthread_self(), sig);
106 handler2 (int sig, siginfo_t* ctxt, void* ignored)
112 signal_thread (void *arg)
117 PBD::ThreadCreated (pthread_self(), X_("Signal"));
119 pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
121 /* find out what's blocked right now */
123 //sigprocmask (SIG_SETMASK, 0, &blocked);
124 if (pthread_sigmask (SIG_SETMASK, 0, &blocked)) {
125 cerr << "getting blocked signals failed\n";
128 /* wait for any of the currently blocked signals.
130 According to the man page found in linux 2.6 and 2.4, sigwait()
131 never returns an error. This is incorrect. Checking the man
132 pages for some other *nix systems makes it clear that
133 sigwait() can return several error codes, one of which
134 is EINTR. This happens if the thread receives a signal
135 which is not in the blocked set.
137 We do not expect that to happen, and if it did we should generally
138 exit as planned. However, under 2.6, the ptrace facility used
139 by gdb seems to also cause sigwait() to return with EINTR
140 but with a signal that sigwait cannot understand. As a result,
141 "sig" is set to zero, an impossible signal number.
143 Handling the EINTR code makes it possible to debug
144 ardour on a 2.6 kernel.
151 if ((swerr = sigwait (&blocked, &sig))) {
152 if (swerr == EINTR) {
155 cerr << "sigwait failed with " << swerr << endl;
159 cerr << "Signal " << sig << " received\n";
161 if (sig != SIGSEGV) {
163 /* unblock signals so we can see them during shutdown.
164 this will help prod developers not to lose sight
165 of bugs that cause segfaults etc. during shutdown.
168 sigprocmask (SIG_UNBLOCK, &blocked, 0);
179 struct sigaction action;
180 pthread_t signal_thread_id;
183 // if (setpgid (0,0)) {
185 warning << string_compose (_("cannot become new process group leader (%1)"),
190 sigemptyset (&signals);
191 sigaddset(&signals, SIGHUP);
192 sigaddset(&signals, SIGINT);
193 sigaddset(&signals, SIGQUIT);
194 sigaddset(&signals, SIGPIPE);
195 sigaddset(&signals, SIGTERM);
196 sigaddset(&signals, SIGUSR1);
197 sigaddset(&signals, SIGUSR2);
200 /* install a handler because otherwise
201 pthreads behaviour is undefined when we enter
205 action.sa_handler = handler;
206 action.sa_mask = signals;
207 action.sa_flags = SA_RESTART|SA_RESETHAND;
209 for (int i = 1; i < 32; i++) {
210 if (sigismember (&signals, i)) {
211 if (sigaction (i, &action, 0)) {
212 cerr << string_compose (_("cannot setup signal handling for %1"), i) << endl;
218 /* this sets the signal mask for this and all
219 subsequent threads that do not reset it.
222 if (pthread_sigmask (SIG_SETMASK, &signals, 0)) {
223 cerr << string_compose (_("cannot set default signal mask (%1)"), strerror (errno)) << endl;
227 /* start a thread to wait for signals */
229 if (pthread_create_and_store ("signal", &signal_thread_id, 0, signal_thread, 0)) {
230 cerr << "cannot create signal catching thread" << endl;
234 pthread_detach (signal_thread_id);
244 if ((env = getenv ("ARDOUR2_UI_RC")) != 0 && strlen (env)) {
247 rcfile = "ardour2_ui.rc";
250 rcfile = find_config_file (rcfile);
252 if (rcfile.empty()) {
253 warning << _("Without a UI style file, ardour will look strange.\n Please set ARDOUR2_UI_RC to point to a valid UI style file") << endmsg;
255 cerr << "Loading ui configuration file " << rcfile << endl;
262 show_ui_callback (void *arg)
264 ARDOUR_UI * ui = (ARDOUR_UI *) arg;
275 MessageDialog win (_("Ardour could not connect to JACK."),
278 (Gtk::ButtonsType)(Gtk::BUTTONS_NONE));
279 win.set_secondary_text(_("There are several possible reasons:\n\
281 1) JACK is not running.\n\
282 2) JACK is running as another user, perhaps root.\n\
283 3) There is already another client called \"ardour\".\n\
285 Please consider the possibilities, and perhaps (re)start JACK."));
287 win.add_button (Stock::QUIT, RESPONSE_CLOSE);
288 win.set_default_response (RESPONSE_CLOSE);
291 win.set_position (Gtk::WIN_POS_CENTER);
293 /* we just don't care about the result */
299 maybe_load_session ()
302 /* load session, if given */
305 if (session_name.length()){
308 if (Session::find_session (session_name, path, name, isnew)) {
309 error << string_compose(_("could not load command line session \"%1\""), session_name) << endmsg;
314 /* command line required that the session be new */
318 /* popup the new session dialog
319 once everything else is OK.
322 Glib::signal_idle().connect (bind (mem_fun (*ui, &ARDOUR_UI::cmdline_new_session), path));
323 ui->set_will_create_new_session_automatically (true);
327 /* it wasn't new, but we require a new session */
329 error << string_compose (_("\n\nA session named \"%1\" already exists.\n\
330 To avoid this message, start ardour as \"ardour %1"), path)
337 /* command line didn't require a new session */
340 error << string_compose (_("\n\nNo session named \"%1\" exists.\n\
341 To create it from the command line, start ardour as \"ardour --new %1"), path)
346 ui->load_session (path, name);
356 if (!Config->get_no_new_session_dialog()) {
357 ui->new_session (true);
365 main (int argc, char *argv[])
367 ARDOUR::AudioEngine *engine;
368 vector<Glib::ustring> null_file_list;
370 // needs a better home.
375 (void) bindtextdomain (PACKAGE, LOCALEDIR);
376 (void) textdomain (PACKAGE);
378 pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
382 text_receiver.listen_to (error);
383 text_receiver.listen_to (info);
384 text_receiver.listen_to (fatal);
385 text_receiver.listen_to (warning);
387 if (parse_opts (argc, argv)) {
391 if (curvetest_file) {
392 return curvetest (curvetest_file);
395 cout << _("Ardour/GTK ")
397 << _("\n (built using ")
398 << gtk_ardour_major_version << '.'
399 << gtk_ardour_minor_version << '.'
400 << gtk_ardour_micro_version
401 << _(" with libardour ")
402 << libardour_major_version << '.'
403 << libardour_minor_version << '.'
404 << libardour_micro_version
406 << _(" and GCC version ") << __VERSION__
416 cerr << _("Copyright (C) 1999-2006 Paul Davis") << endl
417 << _("Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren, Joel Baker") << endl
419 << _("Ardour comes with ABSOLUTELY NO WARRANTY") << endl
420 << _("not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.") << endl
421 << _("This is free software, and you are welcome to redistribute it ") << endl
422 << _("under certain conditions; see the source for copying conditions.")
427 ui = new ARDOUR_UI (&argc, &argv, which_ui_rcfile());
430 catch (failed_constructor& err) {
431 error << _("could not create ARDOUR GUI") << endmsg;
438 if (session_name.length()) {
439 gtk_timeout_add (4000, show_ui_callback, ui);
444 engine = new ARDOUR::AudioEngine (jack_client_name);
445 ARDOUR::init (*engine, use_vst, try_hw_optimization, handler2);
446 ui->set_engine (*engine);
447 } catch (AudioEngine::NoBackendAvailable& err) {
449 error << string_compose (_("Could not connect to JACK server as \"%1\""), jack_client_name) << endmsg;
451 } catch (failed_constructor& err) {
452 error << _("could not initialize Ardour.") << endmsg;
456 if (maybe_load_session ()) {
457 ui->run (text_receiver);
466 /* just another commit forcing change */