android_device_xiaomi_sdm66.../utils/LocTimer.h
Kevin Tang 58c3d32868 Adding a number of utilities
LocHeap, LocThread, LocTimer, and moved MsgTask to
utils. Also added are LocRankable and LocRunnable
abstract classes.

Change-Id: I76975455d24f2c84a95dcc1b04f79fea562ea5ba
CRs-Fixed: 855222
2015-11-12 12:56:25 +05:30

67 lines
2.8 KiB
C++

/* Copyright (c) 2015, The Linux Foundation. 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 The Linux Foundation, 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 __LOC_TIMER_CPP_H__
#define __LOC_TIMER_CPP_H__
#include <stddef.h>
#include <log_util.h>
// opaque class to provide service implementation.
class LocTimerDelegate;
// LocTimer client must extend this class and implementthe callback.
// start() / stop() methods are to arm / disarm timer.
class LocTimer
{
LocTimerDelegate* mTimer;
public:
inline LocTimer() : mTimer(NULL) {}
inline virtual ~LocTimer() { stop(); }
// timeOutInMs: timeout delay in ms
// wakeOnExpire: true if to wake up CPU (if sleeping) upon timer
// expiration and notify the client.
// false if to wait until next time CPU wakes up (if
// sleeping) and then notify the client.
// return: true on success;
// false on failure, e.g. timer is already running.
bool start(uint32_t timeOutInMs, bool wakeOnExpire);
// return: true on success;
// false on failure, e.g. timer is not running.
bool stop();
// LocTimer client Should implement this method.
// This method is used for timeout calling back to client. This method
// should be short enough (eg: send a message to your own thread).
virtual void timeOutCallback() = 0;
};
#endif //__LOC_DELAY_H__