/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 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/>.
*/
+
/** @file src/job_manager.cc
* @brief A simple scheduler for jobs.
*/
-#include <iostream>
-#include <boost/thread.hpp>
-#include "job_manager.h"
+
+#include "analyse_audio_job.h"
+#include "analyse_subtitles_job.h"
+#include "cross.h"
+#include "film.h"
#include "job.h"
+#include "job_manager.h"
+#include <boost/thread.hpp>
+
+
+using std::dynamic_pointer_cast;
+using std::function;
+using std::list;
+using std::make_shared;
+using std::shared_ptr;
+using std::string;
+using std::weak_ptr;
+using boost::bind;
+using boost::optional;
-using namespace std;
-using namespace boost;
-JobManager* JobManager::_instance = 0;
+JobManager* JobManager::_instance = nullptr;
+
JobManager::JobManager ()
{
- boost::thread (boost::bind (&JobManager::scheduler, this));
+
}
+
void
+JobManager::start ()
+{
+ _scheduler = boost::thread (boost::bind(&JobManager::scheduler, this));
+#ifdef DCPOMATIC_LINUX
+ pthread_setname_np (_scheduler.native_handle(), "job-scheduler");
+#endif
+}
+
+
+JobManager::~JobManager ()
+{
+ boost::this_thread::disable_interruption dis;
+
+ for (auto& i: _connections) {
+ i.disconnect ();
+ }
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _terminate = true;
+ _empty_condition.notify_all ();
+ }
+
+ try {
+ _scheduler.join();
+ } catch (...) {}
+}
+
+
+shared_ptr<Job>
JobManager::add (shared_ptr<Job> j)
{
- boost::mutex::scoped_lock lm (_mutex);
-
- _jobs.push_back (j);
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _jobs.push_back (j);
+ _empty_condition.notify_all ();
+ }
+
+ emit (boost::bind(boost::ref(JobAdded), weak_ptr<Job>(j)));
+
+ return j;
}
-list<shared_ptr<Job> >
+
+shared_ptr<Job>
+JobManager::add_after (shared_ptr<Job> after, shared_ptr<Job> j)
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ auto 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;
+}
+
+
+list<shared_ptr<Job>>
JobManager::get () const
{
boost::mutex::scoped_lock lm (_mutex);
-
return _jobs;
}
+
bool
JobManager::work_to_do () const
{
boost::mutex::scoped_lock lm (_mutex);
- list<shared_ptr<Job> >::const_iterator i = _jobs.begin();
+ auto i = _jobs.begin();
while (i != _jobs.end() && (*i)->finished()) {
++i;
}
return i != _jobs.end ();
}
+
+bool
+JobManager::errors () const
+{
+ boost::mutex::scoped_lock lm (_mutex);
+ for (auto i: _jobs) {
+ if (i->finished_in_error()) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
void
JobManager::scheduler ()
{
- while (1) {
- {
- boost::mutex::scoped_lock lm (_mutex);
- int running = 0;
- shared_ptr<Job> first_new;
- for (list<shared_ptr<Job> >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
- if ((*i)->running ()) {
- ++running;
- } else if (!(*i)->finished () && first_new == 0) {
- first_new = *i;
- }
+ start_of_thread ("JobManager");
+
+ while (true) {
+
+ boost::mutex::scoped_lock lm (_mutex);
+
+ if (_terminate) {
+ break;
+ }
- if (running == 0 && first_new) {
- first_new->start ();
- break;
+ bool have_running = false;
+ for (auto i: _jobs) {
+ if (have_running && i->running()) {
+ i->pause_by_priority();
+ } else if (!have_running && (i->is_new() || i->paused_by_priority())) {
+ if (i->is_new()) {
+ _connections.push_back (i->FinishedImmediate.connect(bind(&JobManager::job_finished, this)));
+ i->start ();
+ } else {
+ i->resume ();
}
+ emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, i->json_name()));
+ _last_active_job = i->json_name ();
+ have_running = true;
+ } else if (!have_running && i->running()) {
+ have_running = true;
}
}
- sleep (1);
+ _empty_condition.wait (lm);
}
}
+
+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 *
JobManager::instance ()
{
- if (_instance == 0) {
+ if (!_instance) {
_instance = new JobManager ();
+ _instance->start ();
}
return _instance;
}
+
+
+void
+JobManager::drop ()
+{
+ delete _instance;
+ _instance = nullptr;
+}
+
+
+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);
+
+ for (auto i: _jobs) {
+ auto a = dynamic_pointer_cast<AnalyseAudioJob> (i);
+ if (a && a->path() == film->audio_analysis_path(playlist) && !i->finished_cancelled()) {
+ i->when_finished (connection, ready);
+ return;
+ }
+ }
+ }
+
+ shared_ptr<AnalyseAudioJob> job;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ job = make_shared<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::analyse_subtitles (
+ shared_ptr<const Film> film,
+ shared_ptr<Content> content,
+ boost::signals2::connection& connection,
+ function<void()> ready
+ )
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ for (auto i: _jobs) {
+ auto a = dynamic_pointer_cast<AnalyseSubtitlesJob> (i);
+ if (a && a->path() == film->subtitle_analysis_path(content)) {
+ i->when_finished (connection, ready);
+ return;
+ }
+ }
+ }
+
+ shared_ptr<AnalyseSubtitlesJob> job;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+
+ job = make_shared<AnalyseSubtitlesJob>(film, content);
+ 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);
+ auto last = _jobs.end ();
+ for (auto i = _jobs.begin(); i != _jobs.end(); ++i) {
+ if (*i == job && last != _jobs.end()) {
+ swap (*i, *last);
+ changed = true;
+ break;
+ }
+ last = i;
+ }
+ }
+
+ if (changed) {
+ _empty_condition.notify_all ();
+ emit (boost::bind(boost::ref(JobsReordered)));
+ }
+}
+
+
+void
+JobManager::decrease_priority (shared_ptr<Job> job)
+{
+ bool changed = false;
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ for (auto i = _jobs.begin(); i != _jobs.end(); ++i) {
+ auto next = i;
+ ++next;
+ if (*i == job && next != _jobs.end()) {
+ swap (*i, *next);
+ changed = true;
+ break;
+ }
+ }
+ }
+
+ if (changed) {
+ _empty_condition.notify_all ();
+ emit (boost::bind(boost::ref(JobsReordered)));
+ }
+}
+
+
+void
+JobManager::pause ()
+{
+ boost::mutex::scoped_lock lm (_mutex);
+
+ if (_paused) {
+ return;
+ }
+
+ for (auto 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