1 /* 2 * Copyright (c) 2012, The Linux Foundation. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "idle_invalidator.h" 31 #include <unistd.h> 32 33 #define II_DEBUG 0 34 35 static const char *threadName = "Invalidator"; 36 InvalidatorHandler IdleInvalidator::mHandler = NULL; 37 android::sp<IdleInvalidator> IdleInvalidator::sInstance(0); 38 39 IdleInvalidator::IdleInvalidator(): Thread(false), mHwcContext(0), 40 mSleepAgain(false), mSleepTime(0) { 41 ALOGD_IF(II_DEBUG, "%s", __func__); 42 } 43 44 int IdleInvalidator::init(InvalidatorHandler reg_handler, void* user_data, 45 unsigned int idleSleepTime) { 46 ALOGD_IF(II_DEBUG, "%s", __func__); 47 48 Locker::Autolock _l(mLock); 49 /* store registered handler */ 50 mHandler = reg_handler; 51 mHwcContext = user_data; 52 mSleepTime = idleSleepTime; //Time in millis 53 return 0; 54 } 55 56 bool IdleInvalidator::threadLoop() { 57 ALOGD_IF(II_DEBUG, "%s", __func__); 58 usleep(mSleepTime * 500); 59 60 Locker::Autolock _l(mLock); 61 if(mSleepAgain) { 62 //We need to sleep again! 63 mSleepAgain = false; 64 return true; 65 } 66 67 mHandler((void*)mHwcContext); 68 return false; 69 } 70 71 int IdleInvalidator::readyToRun() { 72 ALOGD_IF(II_DEBUG, "%s", __func__); 73 return 0; /*NO_ERROR*/ 74 } 75 76 void IdleInvalidator::onFirstRef() { 77 ALOGD_IF(II_DEBUG, "%s", __func__); 78 } 79 80 void IdleInvalidator::markForSleep() { 81 Locker::Autolock _l(mLock); 82 mSleepAgain = true; 83 //Triggers the threadLoop to run, if not already running. 84 run(threadName, android::PRIORITY_AUDIO); 85 } 86 87 IdleInvalidator *IdleInvalidator::getInstance() { 88 ALOGD_IF(II_DEBUG, "%s", __func__); 89 if(sInstance.get() == NULL) 90 sInstance = new IdleInvalidator(); 91 return sInstance.get(); 92 } 93
