104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "CameraServiceWatchdog"
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#include "CameraServiceWatchdog.h"
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namespace android {
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bool CameraServiceWatchdog::threadLoop()
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{
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{
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AutoMutex _l(mWatchdogLock);
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while (mPause) {
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mWatchdogCondition.wait(mWatchdogLock);
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}
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}
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std::this_thread::sleep_for(std::chrono::milliseconds(mCycleLengthMs));
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{
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AutoMutex _l(mWatchdogLock);
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for (auto it = tidToCycleCounterMap.begin(); it != tidToCycleCounterMap.end(); it++) {
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uint32_t currentThreadId = it->first;
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tidToCycleCounterMap[currentThreadId]++;
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if (tidToCycleCounterMap[currentThreadId] >= mMaxCycles) {
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ALOGW("CameraServiceWatchdog triggering abort for pid: %d", getpid());
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// We use abort here so we can get a tombstone for better
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// debugging.
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abort();
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}
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}
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}
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return true;
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}
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void CameraServiceWatchdog::requestExit()
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{
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Thread::requestExit();
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AutoMutex _l(mWatchdogLock);
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tidToCycleCounterMap.clear();
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if (mPause) {
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mPause = false;
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mWatchdogCondition.signal();
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}
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}
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void CameraServiceWatchdog::setEnabled(bool enable)
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{
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AutoMutex _l(mEnabledLock);
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if (enable) {
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mEnabled = true;
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} else {
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mEnabled = false;
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}
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}
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void CameraServiceWatchdog::stop(uint32_t tid)
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{
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AutoMutex _l(mWatchdogLock);
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tidToCycleCounterMap.erase(tid);
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if (tidToCycleCounterMap.empty()) {
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mPause = true;
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}
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}
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void CameraServiceWatchdog::start(uint32_t tid)
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{
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AutoMutex _l(mWatchdogLock);
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tidToCycleCounterMap[tid] = 0;
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if (mPause) {
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mPause = false;
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mWatchdogCondition.signal();
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}
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}
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} // namespace android
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