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52 lines
1.5 KiB
52 lines
1.5 KiB
/*
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* Copyright 2016 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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#include "Event.h"
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using namespace android;
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using Increment = surfaceflinger::Increment;
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Event::Event(Increment::IncrementCase type) : mIncrementType(type) {}
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void Event::readyToExecute() {
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changeState(Event::EventState::Waiting);
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waitUntil(Event::EventState::Signaled);
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changeState(Event::EventState::Running);
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}
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void Event::complete() {
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waitUntil(Event::EventState::Waiting);
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changeState(Event::EventState::Signaled);
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waitUntil(Event::EventState::Running);
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}
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void Event::waitUntil(Event::EventState state) {
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std::unique_lock<std::mutex> lock(mLock);
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mCond.wait(lock, [this, state] { return (mState == state); });
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}
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void Event::changeState(Event::EventState state) {
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std::unique_lock<std::mutex> lock(mLock);
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mState = state;
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lock.unlock();
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mCond.notify_one();
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}
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Increment::IncrementCase Event::getIncrementType() {
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return mIncrementType;
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}
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