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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <android/performance_hint.h>
#include <future>
#include "utils/TimeUtils.h"
namespace android {
namespace uirenderer {
namespace renderthread {
class HintSessionWrapper {
public:
HintSessionWrapper(pid_t uiThreadId, pid_t renderThreadId);
~HintSessionWrapper();
void updateTargetWorkDuration(long targetDurationNanos);
void reportActualWorkDuration(long actualDurationNanos);
void sendLoadResetHint();
void sendLoadIncreaseHint();
bool init();
private:
APerformanceHintSession* mHintSession = nullptr;
std::future<APerformanceHintSession*> mHintSessionFuture;
int mResetsSinceLastReport = 0;
nsecs_t mLastFrameNotification = 0;
nsecs_t mLastTargetWorkDuration = 0;
pid_t mUiThreadId;
pid_t mRenderThreadId;
bool mSessionValid = true;
static constexpr nsecs_t kResetHintTimeout = 100_ms;
static constexpr int64_t kSanityCheckLowerBound = 100_us;
static constexpr int64_t kSanityCheckUpperBound = 10_s;
};
} /* namespace renderthread */
} /* namespace uirenderer */
} /* namespace android */
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