No-op: remove all trailing whitespace.

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

diff --git a/src/lib/job_manager.cc b/src/lib/job_manager.cc
index 76fcc6c5d736d72a25b3079584706bb4b6b8963d..f31a00a18b33f0bce674f0406b06197f8fbea691 100644 (file)
--- a/src/lib/job_manager.cc
+++ b/src/lib/job_manager.cc
@@ -27,31 +27,45 @@
 #include "job.h"
 #include "cross.h"
 
-using namespace std;
-using namespace boost;
+using std::string;
+using std::list;
+using std::cout;
+using boost::shared_ptr;
+using boost::weak_ptr;
 
 JobManager* JobManager::_instance = 0;
 
 JobManager::JobManager ()
+       : _terminate (false)
+       , _last_active_jobs (false)
+       , _scheduler (new boost::thread (boost::bind (&JobManager::scheduler, this)))
 {
-       boost::thread (boost::bind (&JobManager::scheduler, this));
+
 }
 
-void
-JobManager::add (shared_ptr<Job> j)
+JobManager::~JobManager ()
 {
-       boost::mutex::scoped_lock lm (_mutex);
-       _jobs.push_back (j);
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               _terminate = true;
+       }
+
+       if (_scheduler->joinable ()) {
+               _scheduler->join ();
+       }
 }
 
-void
-JobManager::add_after (shared_ptr<Job> after, shared_ptr<Job> j)
+shared_ptr<Job>
+JobManager::add (shared_ptr<Job> j)
 {
-       boost::mutex::scoped_lock lm (_mutex);
-       list<shared_ptr<Job> >::iterator i = find (_jobs.begin(), _jobs.end(), after);
-       assert (i != _jobs.end ());
-       ++i;
-       _jobs.insert (i, j);
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               _jobs.push_back (j);
+       }
+
+       emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+
+       return j;
 }
 
 list<shared_ptr<Job> >
@@ -84,32 +98,47 @@ JobManager::errors () const
        }
 
        return false;
-}      
-
+}
 
 void
 JobManager::scheduler ()
 {
-       while (1) {
+       while (true) {
+
+               bool active_jobs = false;
+
                {
                        boost::mutex::scoped_lock lm (_mutex);
-                       int running = 0;
-                       shared_ptr<Job> first_new;
+                       if (_terminate) {
+                               return;
+                       }
+
                        for (list<shared_ptr<Job> >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) {
+
+                               if (!(*i)->finished ()) {
+                                       active_jobs = true;
+                               }
+
                                if ((*i)->running ()) {
-                                       ++running;
-                               } else if (!(*i)->finished () && first_new == 0) {
-                                       first_new = *i;
+                                       /* Something is already happening */
+                                       break;
                                }
 
-                               if (running == 0 && first_new) {
-                                       first_new->start ();
+                               if ((*i)->is_new()) {
+                                       (*i)->start ();
+
+                                       /* Only start one job at once */
                                        break;
                                }
                        }
                }
 
-               dvdomatic_sleep (1);
+               if (active_jobs != _last_active_jobs) {
+                       _last_active_jobs = active_jobs;
+                       emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs));
+               }
+
+               dcpomatic_sleep (1);
        }
 }
 
@@ -122,3 +151,10 @@ JobManager::instance ()
 
        return _instance;
 }
+
+void
+JobManager::drop ()
+{
+       delete _instance;
+       _instance = 0;
+}