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/*
 * ThreadManager.h
 *
 * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_COMMON_THREADMANAGER_H_
#define MAD_COMMON_THREADMANAGER_H_

#include <config.h>

#include "Initializable.h"
#include "LogManager.h"

#include <queue>
#include <set>
#include <sigc++/slot.h>

#include "glthread/thread.h"
#include "glthread/lock.h"
#include "glthread/cond.h"

namespace Mad {
namespace Common {

class ThreadManager : public Initializable {
  private:
    gl_thread_t mainThread, workerThread, loggerThread;
    std::set<gl_thread_t> threads;

    gl_lock_t runLock;
    bool running;

    gl_lock_t workLock;
    gl_cond_t workCond;
    std::queue<sigc::slot<void> > work;

    static ThreadManager threadManager;

    ThreadManager() {}

    static void* workerStart(void*) {
      threadManager.workerFunc();
      return 0;
    }

    static void* loggerStart(void*) {
      LogManager::get()->loggerThread();
      return 0;
    }

    void workerFunc();

  protected:
    virtual void doInit();
    virtual void doDeinit();

  public:
    bool isThisMainThread() const {
      return (mainThread == (gl_thread_t)gl_thread_self());
    }

    bool isThisWorkerThread() const {
      return (workerThread == (gl_thread_t)gl_thread_self());
    }

    void pushWork(const sigc::slot<void> &newWork);

    static ThreadManager* get() {
      return &threadManager;
    }
};

}
}

#endif /* MAD_COMMON_THREADMANAGER_H_ */