X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fjob.h;h=06a341f40d6808581d4bcf44ed3f2805f15285d1;hb=99428af22969a6cfb1dbd2053a9356bb23b3182f;hp=5e3127dc158a432522590ffec566e5cfa1e21bbf;hpb=85c65bd422742813992686c17a5e1b718cc3c449;p=dcpomatic.git

diff --git a/src/lib/job.h b/src/lib/job.h
index 5e3127dc1..06a341f40 100644
--- a/src/lib/job.h
+++ b/src/lib/job.h
@@ -24,18 +24,19 @@
 #ifndef DCPOMATIC_JOB_H
 #define DCPOMATIC_JOB_H
 
-#include <string>
+#include "signaller.h"
 #include <boost/thread/mutex.hpp>
 #include <boost/enable_shared_from_this.hpp>
 #include <boost/signals2.hpp>
 #include <boost/thread.hpp>
+#include <string>
 
 class Film;
 
 /** @class Job
  *  @brief A parent class to represent long-running tasks which are run in their own thread.
  */
-class Job : public boost::enable_shared_from_this<Job>, public boost::noncopyable
+class Job : public boost::enable_shared_from_this<Job>, public Signaller, public boost::noncopyable
 {
 public:
 	Job (boost::shared_ptr<const Film>);
@@ -46,7 +47,7 @@ public:
 	virtual std::string json_name () const = 0;
 	/** Run this job in the current thread. */
 	virtual void run () = 0;
-	
+
 	void start ();
 	void pause ();
 	void resume ();
@@ -73,10 +74,7 @@ public:
 	void set_progress_unknown ();
 	void set_progress (float, bool force = false);
 	void sub (std::string);
-	float progress () const;
-	bool progress_unknown () const {
-		return !_progress;
-	}
+	boost::optional<float> progress () const;
 
 	boost::shared_ptr<const Film> film () const {
 		return _film;
@@ -99,7 +97,7 @@ protected:
 		FINISHED_ERROR, ///< the job has finished in error
 		FINISHED_CANCELLED ///< the job was cancelled
 	};
-	
+
 	void set_state (State);
 	void set_error (std::string s, std::string d);
 
@@ -127,6 +125,11 @@ private:
 	mutable boost::mutex _progress_mutex;
 	boost::optional<float> _progress;
 
+	/** condition to signal changes to pause/resume so that we know when to wake;
+	    this could be a general _state_change if it made more sense.
+	*/
+	boost::condition_variable _pause_changed;
+
 	int _ran_for;
 };