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;
59 TextReceiver text_receiver ("ardour");
61 extern int curvetest (string);
63 static ARDOUR_UI *ui = 0;
72 msg = _("ardour is killing itself for a clean exit\n");
73 write (1, msg, strlen (msg));
74 /* drastic, but perhaps necessary */
75 kill (-getpgrp(), SIGKILL);
81 msg = _("stopping user interface\n");
82 write (1, msg, strlen (msg));
86 pthread_cancel_all ();
99 /* XXX its doubtful that snprintf() is async-safe */
100 n = snprintf (buf, sizeof(buf), _("%d(%d): received signal %d\n"), getpid(), (int) pthread_self(), sig);
107 signal_thread (void *arg)
112 PBD::ThreadCreated (pthread_self(), X_("Signal"));
114 pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
116 /* find out what's blocked right now */
118 //sigprocmask (SIG_SETMASK, 0, &blocked);
119 if (pthread_sigmask (SIG_SETMASK, 0, &blocked)) {
120 cerr << "getting blocked signals failed\n";
123 /* wait for any of the currently blocked signals.
125 According to the man page found in linux 2.6 and 2.4, sigwait()
126 never returns an error. This is incorrect. Checking the man
127 pages for some other *nix systems makes it clear that
128 sigwait() can return several error codes, one of which
129 is EINTR. This happens if the thread receives a signal
130 which is not in the blocked set.
132 We do not expect that to happen, and if it did we should generally
133 exit as planned. However, under 2.6, the ptrace facility used
134 by gdb seems to also cause sigwait() to return with EINTR
135 but with a signal that sigwait cannot understand. As a result,
136 "sig" is set to zero, an impossible signal number.
138 Handling the EINTR code makes it possible to debug
139 ardour on a 2.6 kernel.
146 if ((swerr = sigwait (&blocked, &sig))) {
147 if (swerr == EINTR) {
150 cerr << "sigwait failed with " << swerr << endl;
154 cerr << "Signal " << sig << " received\n";
156 if (sig != SIGSEGV) {
158 /* unblock signals so we can see them during shutdown.
159 this will help prod developers not to lose sight
160 of bugs that cause segfaults etc. during shutdown.
163 sigprocmask (SIG_UNBLOCK, &blocked, 0);
174 struct sigaction action;
175 pthread_t signal_thread_id;
178 // if (setpgid (0,0)) {
180 warning << string_compose (_("cannot become new process group leader (%1)"),
185 sigemptyset (&signals);
186 sigaddset(&signals, SIGHUP);
187 sigaddset(&signals, SIGINT);
188 sigaddset(&signals, SIGQUIT);
189 sigaddset(&signals, SIGPIPE);
190 sigaddset(&signals, SIGTERM);
191 sigaddset(&signals, SIGUSR1);
192 sigaddset(&signals, SIGUSR2);
195 /* install a handler because otherwise
196 pthreads behaviour is undefined when we enter
200 action.sa_handler = handler;
201 action.sa_mask = signals;
202 action.sa_flags = SA_RESTART|SA_RESETHAND;
204 for (int i = 1; i < 32; i++) {
205 if (sigismember (&signals, i)) {
206 if (sigaction (i, &action, 0)) {
207 cerr << string_compose (_("cannot setup signal handling for %1"), i) << endl;
213 /* this sets the signal mask for this and all
214 subsequent threads that do not reset it.
217 if (pthread_sigmask (SIG_SETMASK, &signals, 0)) {
218 cerr << string_compose (_("cannot set default signal mask (%1)"), strerror (errno)) << endl;
222 /* start a thread to wait for signals */
224 if (pthread_create_and_store ("signal", &signal_thread_id, 0, signal_thread, 0)) {
225 cerr << "cannot create signal catching thread" << endl;
229 pthread_detach (signal_thread_id);
239 if ((env = getenv ("ARDOUR2_UI_RC")) != 0 && strlen (env)) {
242 rcfile = "ardour2_ui.rc";
245 rcfile = find_config_file (rcfile);
247 if (rcfile.empty()) {
248 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;
250 cerr << "Loading ui configuration file " << rcfile << endl;
257 show_ui_callback (void *arg)
259 ARDOUR_UI * ui = (ARDOUR_UI *) arg;
270 MessageDialog win (_("Ardour could not connect to JACK."),
273 (Gtk::ButtonsType)(Gtk::BUTTONS_NONE));
274 win.set_secondary_text(_("There are several possible reasons:\n\
276 1) JACK is not running.\n\
277 2) JACK is running as another user, perhaps root.\n\
278 3) There is already another client called \"ardour\".\n\
280 Please consider the possibilities, and perhaps (re)start JACK."));
282 win.add_button (Stock::QUIT, RESPONSE_CLOSE);
283 win.set_default_response (RESPONSE_CLOSE);
286 win.set_position (Gtk::WIN_POS_CENTER);
292 /* we just don't care about the result, but we want to block */
298 maybe_load_session ()
300 /* If no session name is given: we're not loading a session yet, nor creating a new one */
301 if (!session_name.length()) {
303 if (!Config->get_no_new_session_dialog()) {
304 ui->new_session (true);
310 /* Load session or start the new session dialog */
315 if (Session::find_session (session_name, path, name, isnew)) {
316 error << string_compose(_("could not load command line session \"%1\""), session_name) << endmsg;
322 /* Loading a session, but the session doesn't exist */
324 error << string_compose (_("\n\nNo session named \"%1\" exists.\n\
325 To create it from the command line, start ardour as \"ardour --new %1"), path) << endmsg;
329 ui->load_session (path, name);
332 /* TODO: This bit of code doesn't work properly yet
333 Glib::signal_idle().connect (bind (mem_fun (*ui, &ARDOUR_UI::cmdline_new_session), path));
334 ui->set_will_create_new_session_automatically (true); */
338 if (!Config->get_no_new_session_dialog()) {
339 ui->new_session (true);
347 /* this is called from the entry point of a wine-compiled
348 executable that is linked against gtk2_ardour built
352 int ardour_main (int argc, char *argv[])
354 int main (int argc, char *argv[])
358 ARDOUR::AudioEngine *engine;
359 vector<Glib::ustring> null_file_list;
363 (void) bindtextdomain (PACKAGE, LOCALEDIR);
364 (void) textdomain (PACKAGE);
366 pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
370 text_receiver.listen_to (error);
371 text_receiver.listen_to (info);
372 text_receiver.listen_to (fatal);
373 text_receiver.listen_to (warning);
375 if (parse_opts (argc, argv)) {
379 if (curvetest_file) {
380 return curvetest (curvetest_file);
383 cout << _("Ardour/GTK ")
385 << _("\n (built using ")
386 << ARDOUR::get_ardour_revision ()
388 << _(" and GCC version ") << __VERSION__
398 cerr << _("Copyright (C) 1999-2006 Paul Davis") << endl
399 << _("Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren, Joel Baker") << endl
401 << _("Ardour comes with ABSOLUTELY NO WARRANTY") << endl
402 << _("not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.") << endl
403 << _("This is free software, and you are welcome to redistribute it ") << endl
404 << _("under certain conditions; see the source for copying conditions.")
408 // needs a better home.
412 ui = new ARDOUR_UI (&argc, &argv, which_ui_rcfile());
413 } catch (failed_constructor& err) {
414 error << _("could not create ARDOUR GUI") << endmsg;
421 if (session_name.length()) {
422 g_timeout_add (4000, show_ui_callback, ui);
428 engine = new ARDOUR::AudioEngine (jack_client_name);
429 } catch (AudioEngine::NoBackendAvailable& err) {
431 error << string_compose (_("Could not connect to JACK server as \"%1\""), jack_client_name) << endmsg;
437 ARDOUR::init (use_vst, try_hw_optimization);
438 Config->set_current_owner (ConfigVariableBase::Interface);
439 ui->set_engine (*engine);
440 } catch (failed_constructor& err) {
441 error << _("could not initialize Ardour.") << endmsg;
446 if (maybe_load_session ()) {
447 ui->run (text_receiver);
458 } // end of extern C block