1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "location/lbs/contexthub/nanoapps/nearby/timer.h" 18 19 #include <chre.h> 20 21 #include "third_party/contexthub/chre/util/include/chre/util/nanoapp/log.h" 22 #include "third_party/contexthub/chre/util/include/chre/util/time.h" 23 24 #define LOG_TAG "[NEARBY][TIMER]" 25 26 namespace nearby { 27 StartTimer()28bool Timer::StartTimer() { 29 if (duration_ms_ == 0) { 30 LOGD("Timer is not started. Timer duration is 0."); 31 return false; 32 } 33 if (!is_one_shot_ && timer_id_ != CHRE_TIMER_INVALID) { 34 chreTimerCancel(timer_id_); 35 timer_id_ = CHRE_TIMER_INVALID; 36 } 37 timer_id_ = chreTimerSet(duration_ms_ * chre::kOneMillisecondInNanoseconds, 38 &timer_id_, /*oneShot=*/is_one_shot_); 39 if (timer_id_ == CHRE_TIMER_INVALID) { 40 LOGE("Error in configuring timer."); 41 return false; 42 } 43 return true; 44 } 45 StopTimer()46bool Timer::StopTimer() { 47 if (timer_id_ == CHRE_TIMER_INVALID) { 48 LOGD("Timer is already stopped."); 49 return false; 50 } 51 if (!chreTimerCancel(timer_id_)) { 52 LOGW( 53 "Error in stopping timer. For a one-shot timer, it may have just " 54 "fired or expired."); 55 return false; 56 } 57 timer_id_ = CHRE_TIMER_INVALID; 58 return true; 59 } 60 61 } // namespace nearby 62