/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
* @brief A simple scheduler for jobs.
*/
-#include <iostream>
-#include <boost/thread.hpp>
#include "job_manager.h"
#include "job.h"
#include "cross.h"
-#include "ui_signaller.h"
+#include "analyse_audio_job.h"
+#include "film.h"
+#include <boost/thread.hpp>
+#include <boost/foreach.hpp>
+#include <iostream>
using std::string;
using std::list;
using std::cout;
using boost::shared_ptr;
using boost::weak_ptr;
+using boost::function;
+using boost::dynamic_pointer_cast;
+using boost::optional;
+using boost::bind;
JobManager* JobManager::_instance = 0;
JobManager::JobManager ()
: _terminate (false)
- , _last_active_jobs (false)
- , _scheduler (new boost::thread (boost::bind (&JobManager::scheduler, this)))
+ , _paused (false)
+ , _scheduler (0)
{
-
+
+}
+
+void
+JobManager::start ()
+{
+ _scheduler = new boost::thread (boost::bind (&JobManager::scheduler, this));
+#ifdef DCPOMATIC_LINUX
+ pthread_setname_np (_scheduler->native_handle(), "job-scheduler");
+#endif
}
JobManager::~JobManager ()
{
+ BOOST_FOREACH (boost::signals2::connection& i, _connections) {
+ i.disconnect ();
+ }
+
{
boost::mutex::scoped_lock lm (_mutex);
_terminate = true;
+ _empty_condition.notify_all ();
}
- if (_scheduler->joinable ()) {
- _scheduler->join ();
+ if (_scheduler) {
+ /* Ideally this would be a DCPOMATIC_ASSERT(_scheduler->joinable()) but we
+ can't throw exceptions from a destructor.
+ */
+ if (_scheduler->joinable ()) {
+ _scheduler->join ();
+ }
}
+
+ delete _scheduler;
}
shared_ptr<Job>
{
boost::mutex::scoped_lock lm (_mutex);
_jobs.push_back (j);
+ _empty_condition.notify_all ();
}
- if (ui_signaller) {
- ui_signaller->emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+ emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+
+ return j;
+}
+
+shared_ptr<Job>
+JobManager::add_after (shared_ptr<Job> after, shared_ptr<Job> j)
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ list<shared_ptr<Job> >::iterator i = find (_jobs.begin(), _jobs.end(), after);
+ DCPOMATIC_ASSERT (i != _jobs.end());
+ _jobs.insert (i, j);
+ _empty_condition.notify_all ();
}
-
+
+ emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+
return j;
}
JobManager::errors () const
{
boost::mutex::scoped_lock lm (_mutex);
- for (list<shared_ptr<Job> >::const_iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
- if ((*i)->finished_in_error ()) {
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ if (i->finished_in_error ()) {
return true;
}
}
return false;
-}
+}
void
JobManager::scheduler ()
{
while (true) {
- bool active_jobs = false;
-
- {
- boost::mutex::scoped_lock lm (_mutex);
- if (_terminate) {
- return;
- }
-
- for (list<shared_ptr<Job> >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
+ boost::mutex::scoped_lock lm (_mutex);
- if (!(*i)->finished ()) {
- active_jobs = true;
- }
-
- if ((*i)->running ()) {
- /* Something is already happening */
- break;
+ while (true) {
+ bool have_new = false;
+ bool have_running = false;
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ if (i->running()) {
+ have_running = true;
}
-
- if ((*i)->is_new()) {
- (*i)->start ();
-
- /* Only start one job at once */
- break;
+ if (i->is_new()) {
+ have_new = true;
}
}
+
+ if ((!have_running && have_new) || _terminate) {
+ break;
+ }
+
+ _empty_condition.wait (lm);
+ }
+
+ if (_terminate) {
+ break;
}
- if (active_jobs != _last_active_jobs) {
- _last_active_jobs = active_jobs;
- if (ui_signaller) {
- ui_signaller->emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs));
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ if (i->is_new()) {
+ _connections.push_back (i->FinishedImmediate.connect(bind(&JobManager::job_finished, this)));
+ i->start ();
+ emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, i->json_name()));
+ _last_active_job = i->json_name ();
+ /* Only start one job at once */
+ break;
}
}
+ }
+}
- dcpomatic_sleep (1);
+void
+JobManager::job_finished ()
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, optional<string>()));
+ _last_active_job = optional<string>();
}
+
+ _empty_condition.notify_all ();
}
JobManager *
{
if (_instance == 0) {
_instance = new JobManager ();
+ _instance->start ();
}
return _instance;
delete _instance;
_instance = 0;
}
+
+void
+JobManager::analyse_audio (
+ shared_ptr<const Film> film,
+ shared_ptr<const Playlist> playlist,
+ bool from_zero,
+ boost::signals2::connection& connection,
+ function<void()> ready
+ )
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ shared_ptr<AnalyseAudioJob> a = dynamic_pointer_cast<AnalyseAudioJob> (i);
+ if (a && a->path() == film->audio_analysis_path(playlist)) {
+ i->when_finished (connection, ready);
+ return;
+ }
+ }
+ }
+
+ shared_ptr<AnalyseAudioJob> job;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ job.reset (new AnalyseAudioJob (film, playlist, from_zero));
+ connection = job->Finished.connect (ready);
+ _jobs.push_back (job);
+ _empty_condition.notify_all ();
+ }
+
+ emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (job)));
+}
+
+void
+JobManager::increase_priority (shared_ptr<Job> job)
+{
+ bool changed = false;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ list<shared_ptr<Job> >::iterator last = _jobs.end ();
+ for (list<shared_ptr<Job> >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
+ if (*i == job && last != _jobs.end()) {
+ swap (*i, *last);
+ changed = true;
+ break;
+ }
+ last = i;
+ }
+ }
+
+ if (changed) {
+ priority_changed ();
+ }
+}
+
+void
+JobManager::priority_changed ()
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ bool first = true;
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ if (first) {
+ if (i->is_new ()) {
+ i->start ();
+ } else if (i->paused_by_priority ()) {
+ i->resume ();
+ }
+ first = false;
+ } else {
+ if (i->running ()) {
+ i->pause_by_priority ();
+ }
+ }
+ }
+ }
+
+ emit (boost::bind (boost::ref (JobsReordered)));
+}
+
+void
+JobManager::decrease_priority (shared_ptr<Job> job)
+{
+ bool changed = false;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ for (list<shared_ptr<Job> >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
+ list<shared_ptr<Job> >::iterator next = i;
+ ++next;
+ if (*i == job && next != _jobs.end()) {
+ swap (*i, *next);
+ changed = true;
+ break;
+ }
+ }
+ }
+
+ if (changed) {
+ priority_changed ();
+ }
+}
+
+void
+JobManager::pause ()
+{
+ boost::mutex::scoped_lock lm (_mutex);
+
+ if (_paused) {
+ return;
+ }
+
+ BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ if (i->pause_by_user()) {
+ _paused_job = i;
+ }
+ }
+
+ _paused = true;
+}
+
+void
+JobManager::resume ()
+{
+ boost::mutex::scoped_lock lm (_mutex);
+ if (!_paused) {
+ return;
+ }
+
+ if (_paused_job) {
+ _paused_job->resume ();
+ }
+
+ _paused_job.reset ();
+ _paused = false;
+}
projects / dcpomatic.git / blobdiff