2 Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/job_manager.h
22 * @brief A simple scheduler for jobs.
25 #include "signaller.h"
26 #include <boost/thread/mutex.hpp>
27 #include <boost/thread.hpp>
28 #include <boost/signals2.hpp>
35 extern bool wait_for_jobs ();
38 * @brief A simple scheduler for jobs.
40 class JobManager : public Signaller, public boost::noncopyable
44 boost::shared_ptr<Job> add (boost::shared_ptr<Job>);
45 std::list<boost::shared_ptr<Job> > get () const;
46 bool work_to_do () const;
50 boost::shared_ptr<const Film> film,
51 boost::shared_ptr<const Playlist> playlist,
52 boost::signals2::connection& connection,
53 boost::function<void()> ready
56 boost::signals2::signal<void (boost::weak_ptr<Job>)> JobAdded;
57 boost::signals2::signal<void (boost::optional<std::string>, boost::optional<std::string>)> ActiveJobsChanged;
59 static JobManager* instance ();
63 /* This function is part of the test suite */
64 friend bool ::wait_for_jobs ();
71 mutable boost::mutex _mutex;
72 std::list<boost::shared_ptr<Job> > _jobs;
75 boost::optional<std::string> _last_active_job;
76 boost::thread* _scheduler;
78 static JobManager* _instance;