/*
 * Copyright (c) 2012, Code Aurora Forum. All rights reserved.

 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   * Neither the name of Code Aurora Forum, Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef INCLUDE_IDLETIMER
#define INCLUDE_IDLETIMER

#include <signal.h>
#include <time.h>
#include <cutils/log.h>

typedef void (*TimerFP)(int, siginfo_t *, void*);
typedef void (*TimerHandler)(void*);

class IdleTimer
{
    struct sigaction mSAction;
    struct sigevent mSEvent;
    struct itimerspec mSpec;
    timer_t mID;
    static TimerHandler mHandler;

public:
    IdleTimer():mID(-1){};
    /* create timer obj */
    int create(TimerHandler reg_handler, void* user_data);
    /* arm timer with given value */
    int reset();
    /* set timeout period */
    void setFreq(unsigned long freq_msecs);
    /* internal timeout callback function before
     * invoking user registered handler */
    static void timer_cb(int sig, siginfo_t* si, void* uc);
};


#endif // INCLUDE_IDLETIMER