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135 lines
3.9 KiB
135 lines
3.9 KiB
/*
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* Copyright (C) 2021 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_NDEBUG 0
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#define LOG_TAG "TranscodingThermalPolicy"
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#include <media/TranscodingDefs.h>
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#include <media/TranscodingThermalPolicy.h>
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#include <media/TranscodingUidPolicy.h>
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#include <utils/Log.h>
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namespace android {
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static bool needThrottling(AThermalStatus status) {
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return (status >= ATHERMAL_STATUS_SEVERE);
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}
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//static
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void TranscodingThermalPolicy::onStatusChange(void* data, AThermalStatus status) {
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TranscodingThermalPolicy* policy = static_cast<TranscodingThermalPolicy*>(data);
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policy->onStatusChange(status);
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}
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TranscodingThermalPolicy::TranscodingThermalPolicy()
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: mRegistered(false), mThermalManager(nullptr), mIsThrottling(false) {
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registerSelf();
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}
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TranscodingThermalPolicy::~TranscodingThermalPolicy() {
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unregisterSelf();
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}
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void TranscodingThermalPolicy::registerSelf() {
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ALOGI("TranscodingThermalPolicy: registerSelf");
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std::scoped_lock lock{mRegisteredLock};
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if (mRegistered) {
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return;
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}
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if (__builtin_available(android __TRANSCODING_MIN_API__, *)) {
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AThermalManager* thermalManager = AThermal_acquireManager();
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if (thermalManager == nullptr) {
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ALOGE("Failed to acquire thermal manager");
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return;
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}
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int ret = AThermal_registerThermalStatusListener(thermalManager, onStatusChange, this);
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if (ret != 0) {
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ALOGE("Failed to register thermal status listener");
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AThermal_releaseManager(thermalManager);
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return;
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}
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mIsThrottling = needThrottling(AThermal_getCurrentThermalStatus(thermalManager));
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mThermalManager = thermalManager;
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}
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mRegistered = true;
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}
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void TranscodingThermalPolicy::unregisterSelf() {
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ALOGI("TranscodingThermalPolicy: unregisterSelf");
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std::scoped_lock lock{mRegisteredLock};
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if (!mRegistered) {
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return;
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}
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if (__builtin_available(android __TRANSCODING_MIN_API__, *)) {
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if (mThermalManager != nullptr) {
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// Unregister listener
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int ret =
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AThermal_unregisterThermalStatusListener(mThermalManager, onStatusChange, this);
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if (ret != 0) {
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ALOGW("Failed to unregister thermal status listener");
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}
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AThermal_releaseManager(mThermalManager);
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mThermalManager = nullptr;
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}
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}
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mRegistered = false;
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}
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void TranscodingThermalPolicy::setCallback(
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const std::shared_ptr<ThermalPolicyCallbackInterface>& cb) {
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std::scoped_lock lock{mCallbackLock};
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mThermalPolicyCallback = cb;
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}
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bool TranscodingThermalPolicy::getThrottlingStatus() {
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std::scoped_lock lock{mRegisteredLock};
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return mIsThrottling;
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}
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void TranscodingThermalPolicy::onStatusChange(AThermalStatus status) {
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bool isThrottling = needThrottling(status);
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{
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std::scoped_lock lock{mRegisteredLock};
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if (isThrottling == mIsThrottling) {
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return;
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}
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ALOGI("Transcoding thermal throttling changed: %d", isThrottling);
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mIsThrottling = isThrottling;
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}
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std::scoped_lock lock{mCallbackLock};
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std::shared_ptr<ThermalPolicyCallbackInterface> cb;
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if ((cb = mThermalPolicyCallback.lock()) != nullptr) {
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if (isThrottling) {
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cb->onThrottlingStarted();
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} else {
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cb->onThrottlingStopped();
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}
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}
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}
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} // namespace android
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