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