63 lines
1.7 KiB
C++
Executable File
63 lines
1.7 KiB
C++
Executable File
/*
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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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#pragma once
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#include <android/performance_hint.h>
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#include <future>
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#include "utils/TimeUtils.h"
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namespace android {
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namespace uirenderer {
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namespace renderthread {
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class HintSessionWrapper {
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public:
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HintSessionWrapper(pid_t uiThreadId, pid_t renderThreadId);
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~HintSessionWrapper();
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void updateTargetWorkDuration(long targetDurationNanos);
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void reportActualWorkDuration(long actualDurationNanos);
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void sendLoadResetHint();
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void sendLoadIncreaseHint();
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bool init();
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void destroy();
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private:
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APerformanceHintSession* mHintSession = nullptr;
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std::future<APerformanceHintSession*> mHintSessionFuture;
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int mResetsSinceLastReport = 0;
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nsecs_t mLastFrameNotification = 0;
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nsecs_t mLastTargetWorkDuration = 0;
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pid_t mUiThreadId;
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pid_t mRenderThreadId;
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bool mSessionValid = true;
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static constexpr nsecs_t kResetHintTimeout = 100_ms;
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static constexpr int64_t kSanityCheckLowerBound = 100_us;
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static constexpr int64_t kSanityCheckUpperBound = 10_s;
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};
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} /* namespace renderthread */
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} /* namespace uirenderer */
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} /* namespace android */
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