#include "job_manager.h"
#include "job.h"
#include "cross.h"
+#include "ui_signaller.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);
+ }
+
+ if (ui_signaller) {
+ ui_signaller->emit (boost::bind (boost::ref (JobAdded), weak_ptr<Job> (j)));
+ }
+
+ return j;
}
list<shared_ptr<Job> >
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;
+ if (ui_signaller) {
+ ui_signaller->emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs));
+ }
+ }
+
+ dcpomatic_sleep (1);
}
}
return _instance;
}
+
+void
+JobManager::drop ()
+{
+ delete _instance;
+ _instance = 0;
+}