//
//  Aria - yet another download tool
//  Copyright (C) 2000, 2001 Tatsuhiro Tsujikawa
//
//  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 2 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, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//

// $Id: ThreadManager.h,v 1.13 2001/11/04 10:18:08 tujikawa Exp $

// definition of class ThreadManager

#ifndef _THREADMANAGER_H_
#define _THREADMANAGER_H_

#include <list>
#include "aria.h"
#include "ItemManager.h"
#include "ThreadSlot.h"
using namespace std;

typedef list<ThreadSlot*> ThreadList;

class ThreadManager {
private:
  int maxthread;
  bool halt_flag;
  bool autostart_flag;
  int n_thread_to_retire;
  ThreadList thread_list;//スレッド管理リスト
  pthread_mutex_t tm_lock;
  //ThreadSlot *token_thread;
  //struct timeval token_gettime;
  //struct timezone tz_dummy;
  //pthread_mutex_t token_lock;
  void *boss;
public:
  ThreadManager(int maxthread, void *boss_in);
  void setBoss(void *boss_in);
  void *getBoss() const;
  void ManageThread(int maxthread);
  void ManageThread();

  void waitThreadTermination(); // すべてのスレッドの終了を待つ
  int getTotalThread() const; // リストのスレッドの数を返す
  void retireThread(pthread_t thread_id); // 引数のスレッドをスレッドリスト
                                           // から削除
  bool retireThreadByRequest(pthread_t thread_id); //Whether_retire_is_requested()+Retire_thread(...)
  bool isNoActiveThread() const;
  void setThreadState(pthread_t thread_id, ItemCell *itemcell, ThreadStatusType status);
  bool getHaltFlag() const;
  void setHaltFlag();

  list<ItemCell *> getActiveItemCell();

  void setRetireNumber(int num_of_thread_to_retire);

  ThreadSlot *getThreadSlot(pthread_t thread);
  bool getAutostartFlag() const;
  void setAutostartFlag(bool flag);

  //bool get_token(pthread_t thread);
  //bool release_token(pthread_t thread);
  //ThreadSlot *get_next_token_thread(ThreadSlot *threadslot);
};
#endif // _THREADMANAGER_H_