android_hardware_qcom_display/libqcomui/utils/IdleTimer.h

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/*
* 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