Separate out SPL/SPLEntry; start trying to make player read SPLs sensibly.

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

diff --git a/src/lib/job_manager.cc b/src/lib/job_manager.cc
index 6d651d2ba1d51adc531efc64b51c6c5f88002d31..d29138e9f44baca8e34045bba9e46bdb7631a651 100644 (file)
--- a/src/lib/job_manager.cc
+++ b/src/lib/job_manager.cc
@@ -39,11 +39,13 @@ 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)
+       , _paused (false)
        , _scheduler (0)
 {
 
@@ -60,6 +62,10 @@ JobManager::start ()
 
 JobManager::~JobManager ()
 {
+       BOOST_FOREACH (boost::signals2::connection& i, _connections) {
+               i.disconnect ();
+       }
+
        {
                boost::mutex::scoped_lock lm (_mutex);
                _terminate = true;
@@ -83,6 +89,7 @@ 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)));
@@ -98,6 +105,7 @@ JobManager::add_after (shared_ptr<Job> after, shared_ptr<Job> j)
                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)));
@@ -142,42 +150,58 @@ JobManager::scheduler ()
 {
        while (true) {
 
+               boost::mutex::scoped_lock lm (_mutex);
+
                optional<string> active_job;
 
-               {
-                       boost::mutex::scoped_lock lm (_mutex);
-                       if (_terminate) {
-                               return;
+               while (true) {
+                       bool have_new = false;
+                       bool have_running = false;
+                       BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+                               if (i->running()) {
+                                       have_running = true;
+                                       active_job = i->json_name();
+                               }
+                               if (i->is_new()) {
+                                       have_new = true;
+                               }
                        }
 
-                       BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+                       if ((!have_running && have_new) || _terminate) {
+                               break;
+                       }
 
-                               if (!i->finished ()) {
-                                       active_job = i->json_name ();
-                               }
+                       _empty_condition.wait (lm);
+               }
 
-                               if (i->running ()) {
-                                       /* Something is already happening */
-                                       break;
-                               }
+               if (_terminate) {
+                       break;
+               }
 
-                               if (i->is_new()) {
-                                       i->start ();
-                                       /* Only start one job at once */
-                                       break;
-                               }
+               BOOST_FOREACH (shared_ptr<Job> i, _jobs) {
+                       if (i->is_new()) {
+                               _connections.push_back (i->FinishedImmediate.connect(bind(&JobManager::job_finished, this)));
+                               i->start ();
+                               /* Only start one job at once */
+                               break;
                        }
                }
 
+               lm.unlock ();
+
                if (active_job != _last_active_job) {
                        emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, active_job));
                        _last_active_job = active_job;
                }
-
-               dcpomatic_sleep (1);
        }
 }
 
+void
+JobManager::job_finished ()
+{
+       _empty_condition.notify_all ();
+}
+
 JobManager *
 JobManager::instance ()
 {
@@ -284,13 +308,16 @@ JobManager::decrease_priority (shared_ptr<Job> job)
 {
        bool changed = false;
 
-       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;
+       {
+               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;
+                       }
                }
        }
 
@@ -298,3 +325,37 @@ JobManager::decrease_priority (shared_ptr<Job> job)
                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;
+}