/*
 * 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_NET_THREADMANAGER_H_
#define MAD_NET_THREADMANAGER_H_

#include <config.h>

#include <Common/Initializable.h>

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

#include <boost/thread/thread.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/locks.hpp>

namespace Mad {
namespace Net {

class ThreadManager : public Common::Initializable {
  private:
    boost::thread::id mainThreadId;
    boost::thread *workerThread, *loggerThread, *ioThread;
    boost::thread_group threads;

    boost::mutex threadLock;

    boost::mutex runLock;
    bool running;

    boost::mutex workLock;
    boost::condition_variable workCond;
    std::queue<sigc::slot<void> > work;

    static ThreadManager threadManager;

    ThreadManager() {}

    void workerFunc();

    void threadFinished(boost::thread *thread) {
      threadLock.lock();
      threads.remove_thread(thread);
      threadLock.unlock();

      thread->join();
      delete thread;
    }

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

  public:
    bool isThisMainThread() {
      return (mainThreadId == boost::this_thread::get_id());
    }

    bool isThisWorkerThread() {
      boost::lock_guard<boost::mutex> lock(threadLock);
      return (workerThread->get_id() == boost::this_thread::get_id());
    }

    void detach();

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

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

}
}

#endif /* MAD_NET_THREADMANAGER_H_ */