/* === S Y N F I G ========================================================= */
/*! \file synfig/rendering/renderqueue.h
** \brief RenderQueue Header
**
** $Id$
**
** \legal
** ......... ... 2015 Ivan Mahonin
**
** This package 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 package 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.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_RENDERING_RENDERQUEUE_H
#define __SYNFIG_RENDERING_RENDERQUEUE_H
/* === H E A D E R S ======================================================= */
#include <cstdio>
#include <map>
#include <mutex>
#include <condition_variable>
#include "task.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig
{
namespace rendering
{
class RenderQueue
{
public:
typedef std::list<Glib::Threads::Thread*> ThreadList;
typedef std::map<int, Task::Handle> ThreadTaskMap;
typedef std::set<Task::Handle> TaskSet;
typedef std::list<Task::Handle> TaskQueue;
private:
static int last_batch_index;
std::mutex mutex;
std::mutex threads_mutex;
std::condition_variable cond;
std::condition_variable single_cond;
TaskQueue ready_tasks;
TaskQueue single_ready_tasks;
TaskSet not_ready_tasks;
TaskSet single_not_ready_tasks;
bool started;
ThreadList threads;
ThreadTaskMap tasks_in_process;
void start();
void stop();
void process(int thread_index);
void done(int thread_index, const Task::Handle &task);
Task::Handle get(int thread_index);
static void fix_task(const Task &task, const Task::RunParams ¶ms);
bool remove_if_orphan(const Task::Handle &task, bool in_queue);
void remove_orphans();
bool remove_task(const Task::Handle &task);
public:
RenderQueue();
~RenderQueue();
int get_threads_count() const;
void enqueue(const Task::Handle &task, const Task::RunParams ¶ms);
void enqueue(const Task::List &tasks, const Task::RunParams ¶ms);
void cancel(const Task::Handle &task);
void cancel(const Task::List &list);
void clear();
};
} /* end namespace rendering */
} /* end namespace synfig */
/* -- E N D ----------------------------------------------------------------- */
#endif