58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright (C) 2015 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 "JobQueue.h"
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JobQueue::Job JobQueue::pop() {
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Job job;
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std::lock_guard<std::mutex> lock(m_lock);
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if (!m_queue.empty()) {
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std::swap(job, m_queue.front());
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m_queue.pop_front();
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}
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return job;
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}
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void JobQueue::enqueue(JobQueue::Job&& job) {
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std::lock_guard<std::mutex> lock(m_lock);
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m_queue.push_back(std::forward<JobQueue::Job>(job));
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}
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bool JobQueue::runJobIfAny() {
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Job job(pop());
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// call the job without holding our lock
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if (job) {
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job();
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return true;
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}
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return false;
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}
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void JobQueue::runAllJobs() {
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std::deque<Job> q;
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std::unique_lock<std::mutex> lock(m_lock);
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std::swap(q, m_queue);
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lock.unlock();
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for (auto& job : q) {
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job();
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}
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}
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bool JobQueue::isEmpty() const {
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std::lock_guard<std::mutex> lock(m_lock);
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return m_queue.empty();
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}
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