/*

 *

 * (C) 2017-26 - ntop.org

 *

 *

 * 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, write to the Free Software Foundation,

 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 *

 */

#ifndef _THREAD_POOL_H_

#define _THREAD_POOL_H_

#include "ntop_includes.h"

class ThreadPool {

 private:

  u_int16_t num_threads;

  bool terminating;

  pthread_cond_t condvar;

  Mutex* m;

#ifdef __linux__

  cpu_set_t affinity_mask;

#endif

  std::vector<pthread_t> threadsState;

  std::queue<QueuedThreadData*> threads;

  QueuedThreadData* dequeueJob(bool waitIfEmpty);

  /* Creates and starts a new pool thread */

  bool spawn();

  bool isQueueable(ThreadedActivityState cur_state);

 public:

  ThreadPool(char* comma_separated_affinity_mask = NULL);

  virtual ~ThreadPool();

  void shutdown();

  inline bool isTerminating() { return terminating; };

  void run();

  bool queueJob(ThreadedActivity* ta, char* path, NetworkInterface* iface,

                time_t scheduled_time, time_t deadline, PeriodicActivities* pa,

                bool hourly_daily_activity);

};

#endif /* _THREAD_POOL_H_ */