job.h

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// -*- mode: c++; tab-width: 4; indent-tabs-mode: t; c-file-style: "stroustrup"; -*-
// vi:set ts=4 sts=4 sw=4 noet cino+=(0 :
// Copyright 2011, The TPIE development team
// 
// This file is part of TPIE.
// 
// TPIE is free software: you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
// 
// TPIE 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 Lesser General Public
// License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with TPIE.  If not, see <http://www.gnu.org/licenses/>
 
#ifndef __TPIE_JOB_MANAGER_H__
#define __TPIE_JOB_MANAGER_H__
 
 
#include <tpie/tpie_export.h>
#include <stddef.h>
#include <condition_variable>
#include <tpie/types.h>
 
namespace tpie {
 
class TPIE_EXPORT job {
 
    enum job_state { job_idle, job_enqueued, job_running };
 
public:
 
    job();
 
    virtual ~job() {}
 
    virtual void operator()() = 0;
 
    void join();
 
    bool is_done();
 
    void enqueue(job * parent = 0);
 
    void run();
 
protected:
 
    virtual void on_done() {}
 
private:
 
    size_t m_dependencies;
    job * m_parent;
    job_state m_state;
 
    std::condition_variable m_done;
 
    void done();
 
    friend class job_manager;
};
 
TPIE_EXPORT memory_size_type default_worker_count();
 
void init_job();
 
void finish_job();
 
} // namespace tpie
 
#endif