Move things round a bit.

1 files changed, 54 insertions, 0 deletions

diff --git a/src/lib/job_manager.h b/src/lib/job_manager.h
new file mode 100644
index 000000000..f2f5e0057
--- /dev/null
+++ b/src/lib/job_manager.h
@@ -0,0 +1,54 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file  src/job_manager.h
+ *  @brief A simple scheduler for jobs.
+ */
+
+#include <list>
+#include <boost/thread/mutex.hpp>
+
+class Job;
+
+/** @class JobManager
+ *  @brief A simple scheduler for jobs.
+ *
+ *  JobManager simply keeps a list of pending jobs, and assumes that all the jobs
+ *  are sufficiently CPU intensive that there is no point running them in parallel;
+ *  so jobs are just run one after the other.
+ */
+class JobManager
+{
+public:
+
+	void add (boost::shared_ptr<Job>);
+	std::list<boost::shared_ptr<Job> > get () const;
+	bool work_to_do () const;
+
+	static JobManager* instance ();
+
+private:
+	JobManager ();
+	void scheduler ();
+	
+	mutable boost::mutex _mutex;
+	std::list<boost::shared_ptr<Job> > _jobs;
+
+	static JobManager* _instance;
+};