112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams/* 212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * Copyright (C) 2009 The Android Open Source Project 312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * 412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * Licensed under the Apache License, Version 2.0 (the "License"); 512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * you may not use this file except in compliance with the License. 612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * You may obtain a copy of the License at 712b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * 812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * http://www.apache.org/licenses/LICENSE-2.0 912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * 1012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * Unless required by applicable law or agreed to in writing, software 1112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * distributed under the License is distributed on an "AS IS" BASIS, 1212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * See the License for the specific language governing permissions and 1412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams * limitations under the License. 1512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams */ 1612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 1712b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams#include "rsSignal.h" 1812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 1912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Samsusing namespace android; 2012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Samsusing namespace android::renderscript; 2112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 2212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 23afb743aca56c18beb7ab924e75cb6e070ef3e55aAlex SakhartchoukSignal::Signal() { 2412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams mSet = true; 2512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams} 2612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 27afb743aca56c18beb7ab924e75cb6e070ef3e55aAlex SakhartchoukSignal::~Signal() { 2812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams pthread_mutex_destroy(&mMutex); 2912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams pthread_cond_destroy(&mCondition); 3012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams} 3112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 32afb743aca56c18beb7ab924e75cb6e070ef3e55aAlex Sakhartchoukbool Signal::init() { 3312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams int status = pthread_mutex_init(&mMutex, NULL); 3412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 35af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessFifo mutex init failure"); 3612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams return false; 3712b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 3812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 3912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_cond_init(&mCondition, NULL); 4012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 41af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessFifo condition init failure"); 4212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams pthread_mutex_destroy(&mMutex); 4312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams return false; 4412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 4512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 4612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams return true; 4712b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams} 4812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 49afb743aca56c18beb7ab924e75cb6e070ef3e55aAlex Sakhartchoukvoid Signal::set() { 5012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams int status; 5112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 5212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_mutex_lock(&mMutex); 5312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 54af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i locking for set condition.", status); 5512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams return; 5612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 5712b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 5812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams mSet = true; 5912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 6012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_cond_signal(&mCondition); 6112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 62af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i on set condition.", status); 6312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 6412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 6512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_mutex_unlock(&mMutex); 6612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 67af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i unlocking for set condition.", status); 6812b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 6912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams} 7012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 71e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Samsbool Signal::wait(uint64_t timeout) { 7212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams int status; 73e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams bool ret = false; 7412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 7512b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_mutex_lock(&mMutex); 7612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 77af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i locking for condition.", status); 78e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams return false; 7912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 8012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 8112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (!mSet) { 82e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams if (!timeout) { 83e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams status = pthread_cond_wait(&mCondition, &mMutex); 84e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams } else { 85e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams#if defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE) 86e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams status = pthread_cond_timeout_np(&mCondition, &mMutex, timeout / 1000000); 87e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams#else 88e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams // This is safe it will just make things less reponsive 89e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams status = pthread_cond_wait(&mCondition, &mMutex); 90e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams#endif 91e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams } 92e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams } 93e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams 94e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams if (!status) { 95e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams mSet = false; 96e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams ret = true; 97e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams } else { 98e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams if (status != ETIMEDOUT) { 99af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i waiting for condition.", status); 10012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 10112b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 10212b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 10312b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams status = pthread_mutex_unlock(&mMutex); 10412b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams if (status) { 105af12ac6a08651464f8d823add667c706f993b587Steve Block ALOGE("LocklessCommandFifo: error %i unlocking for condition.", status); 10612b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams } 107e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams 108e0aab4a8ff1cffd8cfaedc2623db94072549e0e5Jason Sams return ret; 10912b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams} 11012b14ae9fa34f4fd0bf21a2a4ac95a4864248fe9Jason Sams 111