/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
/** @file src/job_manager.cc
* @brief A simple scheduler for jobs.
*/
-#include "job_manager.h"
-#include "job.h"
-#include "cross.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>
-#include <boost/foreach.hpp>
-#include <iostream>
-using std::string;
+
+using std::dynamic_pointer_cast;
+using std::function;
using std::list;
-using std::cout;
-using boost::shared_ptr;
-using boost::weak_ptr;
-using boost::function;
-using boost::dynamic_pointer_cast;
+using std::make_shared;
+using std::shared_ptr;
+using std::string;
+using std::weak_ptr;
+using boost::bind;
using boost::optional;
-JobManager* JobManager::_instance = 0;
+
+JobManager* JobManager::_instance = nullptr;
+
JobManager::JobManager ()
- : _terminate (false)
- , _scheduler (0)
{
}
+
void
JobManager::start ()
{
- _scheduler = new boost::thread (boost::bind (&JobManager::scheduler, this));
+ _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 ();
}
- 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;
+ try {
+ _scheduler.join();
+ } catch (...) {}
}
+
shared_ptr<Job>
JobManager::add (shared_ptr<Job> 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)));
+ 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 (list<shared_ptr<Job> >::const_iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
- if ((*i)->finished_in_error ()) {
+ for (auto i: _jobs) {
+ if (i->finished_in_error()) {
return true;
}
}
return false;
}
+
void
JobManager::scheduler ()
{
- while (true) {
+ start_of_thread ("JobManager");
- optional<string> active_job;
-
- {
- boost::mutex::scoped_lock lm (_mutex);
- if (_terminate) {
- return;
- }
-
- BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+ while (true) {
- if (!i->finished ()) {
- active_job = i->json_name ();
- }
+ boost::mutex::scoped_lock lm (_mutex);
- if (i->running ()) {
- /* Something is already happening */
- break;
- }
+ if (_terminate) {
+ 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 ();
- /* Only start one job at once */
- break;
+ } 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;
}
}
- if (active_job != _last_active_job) {
- emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, active_job));
- _last_active_job = active_job;
- }
+ _empty_condition.wait (lm);
+ }
+}
- 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 *
JobManager::instance ()
{
- if (_instance == 0) {
+ if (!_instance) {
_instance = new JobManager ();
_instance->start ();
}
return _instance;
}
+
void
JobManager::drop ()
{
delete _instance;
- _instance = 0;
+ _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);
- BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
-
shared_ptr<AnalyseAudioJob> a = dynamic_pointer_cast<AnalyseAudioJob> (i);
- if (a && a->playlist () == playlist) {
+ 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;
}
{
boost::mutex::scoped_lock lm (_mutex);
- job.reset (new AnalyseAudioJob (film, playlist));
+ 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)
{
{
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) {
+ auto last = _jobs.end ();
+ for (auto i = _jobs.begin(); i != _jobs.end(); ++i) {
if (*i == job && last != _jobs.end()) {
swap (*i, *last);
changed = true;
}
if (changed) {
- priority_changed ();
+ _empty_condition.notify_all ();
+ emit (boost::bind(boost::ref(JobsReordered)));
}
}
+
void
-JobManager::priority_changed ()
+JobManager::decrease_priority (shared_ptr<Job> job)
{
+ bool changed = false;
+
{
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 ();
- }
+ 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;
}
}
}
- emit (boost::bind (boost::ref (JobsReordered)));
+ if (changed) {
+ _empty_condition.notify_all ();
+ emit (boost::bind(boost::ref(JobsReordered)));
+ }
}
+
void
-JobManager::decrease_priority (shared_ptr<Job> job)
+JobManager::pause ()
{
- 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 (_paused) {
+ return;
+ }
+
+ for (auto i: _jobs) {
+ if (i->pause_by_user()) {
+ _paused_job = i;
}
}
- if (changed) {
- priority_changed ();
+ _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