/*
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* Copyright (C) 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 <hidl/TaskRunner.h>
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#include <utils/AndroidThreads.h>
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#include "SynchronizedQueue.h"
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#include <thread>
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namespace android {
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namespace hardware {
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namespace details {
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TaskRunner::TaskRunner() {
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}
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void TaskRunner::start(size_t limit) {
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mQueue = std::make_shared<SynchronizedQueue<Task>>(limit);
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}
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TaskRunner::~TaskRunner() {
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if (mQueue) {
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mQueue->push(nullptr);
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}
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}
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bool TaskRunner::push(const Task &t) {
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if (mQueue == nullptr || !t) {
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return false;
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}
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{
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std::unique_lock<std::mutex> lock = mQueue->lock();
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if (!mQueue->isInitializedLocked()) {
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// Allow the thread to continue running in background;
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// TaskRunner do not care about the std::thread object.
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std::thread{[q = mQueue] {
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androidSetThreadName("HIDL TaskRunner");
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Task nextTask;
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while (!!(nextTask = q->wait_pop())) {
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nextTask();
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}
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}}.detach();
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mQueue->setInitializedLocked(true);
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}
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}
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return this->mQueue->push(t);
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}
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} // namespace details
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} // namespace hardware
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} // namespace android
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