#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>);
- virtual ~Job() {}
+ virtual ~Job ();
/** @return user-readable name of this job */
virtual std::string name () const = 0;
+ virtual std::string json_name () const = 0;
/** Run this job in the current thread. */
virtual void run () = 0;
-
+
void start ();
void pause ();
void resume ();
int elapsed_time () const;
virtual std::string status () const;
+ std::string json_status () const;
std::string sub_name () const {
return _sub_name;
}
void set_progress_unknown ();
- void set_progress (float);
+ 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;
}
+ void when_finished (boost::signals2::connection& connection, boost::function<void()> finished);
+
boost::signals2::signal<void()> Progress;
/** Emitted from the UI thread when the job is finished */
boost::signals2::signal<void()> Finished;
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);
private:
void run_wrapper ();
+ void set_progress_common (boost::optional<float> p);
boost::thread* _thread;
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;
};