Files
xliu 6803ce26e3 Runner task multithreading problem
Description
  1. The runner task will crash probabilistically in the case of multithreading.
  2. Add locks in the runner task to solve the problem of multi-threaded
  concurrent access.
Issue:
  #I51UZB: Runner task multithreading problem

Signed-off-by: xliu <liuxin259@huawei.com>
Change-Id: I04afedd505b90d0ba8124b9a88d398234f71f3be
2022-04-09 17:04:57 +08:00

75 lines
2.0 KiB
C++

/*
* Copyright (c) 2021 Huawei Device Co., Ltd.
* 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.
*/
#ifndef ECMASCRIPT_TASKPOOL_RUNNER_H
#define ECMASCRIPT_TASKPOOL_RUNNER_H
#include <array>
#include <memory>
#include <thread>
#include <vector>
#include "ecmascript/common.h"
#include "ecmascript/taskpool/task_queue.h"
#include "os/mutex.h"
namespace panda::ecmascript {
static constexpr uint32_t MAX_TASKPOOL_THREAD_NUM = 7;
static constexpr uint32_t DEFAULT_TASKPOOL_THREAD_NUM = 0;
class Runner {
public:
explicit Runner(uint32_t threadNum);
~Runner() = default;
NO_COPY_SEMANTIC(Runner);
NO_MOVE_SEMANTIC(Runner);
void PostTask(std::unique_ptr<Task> task)
{
taskQueue_.PostTask(std::move(task));
}
void PUBLIC_API TerminateThread();
void TerminateTask();
uint32_t GetTotalThreadNum() const
{
return totalThreadNum_;
}
bool IsInThreadPool(std::thread::id id) const
{
for (auto &thread : threadPool_) {
if (thread->get_id() == id) {
return true;
}
}
return false;
}
private:
void Run(uint32_t threadId);
void SetRunTask(uint32_t threadId, Task *task);
std::vector<std::unique_ptr<std::thread>> threadPool_ {};
TaskQueue taskQueue_ {};
std::array<Task*, MAX_TASKPOOL_THREAD_NUM + 1> runningTask_;
uint32_t totalThreadNum_ {0};
os::memory::Mutex mtx_;
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_TASKPOOL_RUNNER_H