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