Build Empty objects from the presence or absence of decoders in

[dcpomatic.git] / src / lib / job_manager.cc

diff --git a/src/lib/job_manager.cc b/src/lib/job_manager.cc
index c9924d226426c0da60d358d9b362fcd6f4d356f4..535830c0c43cc77cb42263f8af9f3e8164484251 100644 (file)
--- a/src/lib/job_manager.cc
+++ b/src/lib/job_manager.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -44,6 +44,7 @@ JobManager* JobManager::_instance = 0;
 
 JobManager::JobManager ()
        : _terminate (false)
+       , _paused (false)
        , _scheduler (0)
 {
 
@@ -53,6 +54,9 @@ 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 ()
@@ -87,6 +91,21 @@ JobManager::add (shared_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);
+       }
+
+       emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+
+       return j;
+}
+
 list<shared_ptr<Job> >
 JobManager::get () const
 {
@@ -132,21 +151,23 @@ JobManager::scheduler ()
                                return;
                        }
 
-                       BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+                       if (!_paused) {
+                               BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
 
-                               if (!i->finished ()) {
-                                       active_job = i->json_name ();
-                               }
+                                       if (!i->finished ()) {
+                                               active_job = i->json_name ();
+                                       }
 
-                               if (i->running ()) {
-                                       /* Something is already happening */
-                                       break;
-                               }
+                                       if (i->running ()) {
+                                               /* Something is already happening */
+                                               break;
+                                       }
 
-                               if (i->is_new()) {
-                                       i->start ();
-                                       /* Only start one job at once */
-                                       break;
+                                       if (i->is_new()) {
+                                               i->start ();
+                                               /* Only start one job at once */
+                                               break;
+                                       }
                                }
                        }
                }
@@ -182,6 +203,7 @@ void
 JobManager::analyse_audio (
        shared_ptr<const Film> film,
        shared_ptr<const Playlist> playlist,
+       bool from_zero,
        boost::signals2::connection& connection,
        function<void()> ready
        )
@@ -203,10 +225,116 @@ JobManager::analyse_audio (
        {
                boost::mutex::scoped_lock lm (_mutex);
 
-               job.reset (new AnalyseAudioJob (film, playlist));
+               job.reset (new AnalyseAudioJob (film, playlist, from_zero));
                connection = job->Finished.connect (ready);
                _jobs.push_back (job);
        }
 
        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;
+}