04167cb639
Protect invalidator data from accessing multiple threads asynchronously. Composition thread and idle invalidator threads could access at same time. Add locking to protect invalidator class member variables. Change-Id: I568ec367958c88f70f7aa4e6917abd53830adfd3
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/*
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* Copyright (c) 2012, The Linux Foundation. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef INCLUDE_IDLEINVALIDATOR
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#define INCLUDE_IDLEINVALIDATOR
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#include <cutils/log.h>
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#include <utils/threads.h>
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#include <gr.h>
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typedef void (*InvalidatorHandler)(void*);
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class IdleInvalidator : public android::Thread {
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void *mHwcContext;
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bool mSleepAgain;
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unsigned int mSleepTime;
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static InvalidatorHandler mHandler;
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static android::sp<IdleInvalidator> sInstance;
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mutable Locker mLock;
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public:
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IdleInvalidator();
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/* init timer obj */
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int init(InvalidatorHandler reg_handler, void* user_data, unsigned int
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idleSleepTime);
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void markForSleep();
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/*Overrides*/
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virtual bool threadLoop();
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virtual int readyToRun();
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virtual void onFirstRef();
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static IdleInvalidator *getInstance();
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};
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#endif // INCLUDE_IDLEINVALIDATOR
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