CheckpointSignaler.h

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/*
 * University of Illinois Open Source License
 * Copyright 2012-2018 Luthey-Schulten Group,
 * All rights reserved.
 * 
 * Developed by: Luthey-Schulten Group
 *               University of Illinois at Urbana-Champaign
 *               http://www.scs.uiuc.edu/~schulten
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the Software), to deal with 
 * the Software without restriction, including without limitation the rights to 
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
 * of the Software, and to permit persons to whom the Software is furnished to 
 * do so, subject to the following conditions:
 * 
 * - Redistributions of source code must retain the above copyright notice, 
 * this list of conditions and the following disclaimers.
 * 
 * - Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimers in the documentation 
 * and/or other materials provided with the distribution.
 * 
 * - Neither the names of the Luthey-Schulten Group, University of Illinois at
 * Urbana-Champaign, nor the names of its contributors may be used to endorse or
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
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 * Author(s): Elijah Roberts
 */
 
#ifndef LM_MAIN_CHECKPOINTSIGNALER
#define LM_MAIN_CHECKPOINTSIGNALER
 
#include <ctime>
#include <pthread.h>
#include "thread/Thread.h"
#include "thread/Worker.h"
 
using lm::thread::PthreadException;
using lm::thread::Worker;
 
 
namespace lm {
namespace main {

class CheckpointSignaler : public Worker
{
public:
    CheckpointSignaler();
    virtual ~CheckpointSignaler();
    
    virtual void startCheckpointing(time_t checkpointInterval);
    virtual void stopCheckpointing();
    virtual void wake();
 
private:
    pthread_cond_t controlChange;
    time_t checkpointInterval;
    struct timespec nextCheckpoint;
 
protected:
    virtual int run();
    void setNextCheckpointTime();
};
 
}
}
 
 
#endif