Thread.h

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// Copyright 2024 libsese
//
// 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.
 
#pragma once
 
#include "sese/Config.h"
#include "sese/util/Initializer.h"
#include "sese/util/Noncopyable.h"
 
#include <functional>
#include <thread>
 
#ifdef __linux__
#include <sys/syscall.h>
#include <unistd.h>
#endif
 
#ifdef _WIN32
#include <windows.h>
#pragma warning(disable : 4251)
#pragma warning(disable : 4624)
#endif
 
namespace sese {
 
class ThreadInitiateTask final : public InitiateTask {
public:
    ThreadInitiateTask() : InitiateTask(__FUNCTION__){};
 
    int32_t init() noexcept override;
 
    int32_t destroy() noexcept override;
};
 
class Thread final : public Noncopyable { // GCOVR_EXCL_LINE
public:
    using Ptr = std::unique_ptr<Thread>;
 
    struct RuntimeData;
 
    explicit Thread(const std::function<void()> &function, const std::string &name = THREAD_DEFAULT_NAME);
    Thread(Thread &thread);
 
    void start();
    void join();
    void detach();
    [[nodiscard]] bool joinable() const;
 
    static void run(std::shared_ptr<RuntimeData> data);
 
    [[nodiscard]] tid_t getTid() const noexcept { return data->id; }
    [[nodiscard]] const std::string &getThreadName() const noexcept { return this->data->name; }
 
public:
    struct RuntimeData {
        tid_t id = 0;
 
        std::string name;
        std::thread th;
        std::function<void()> function;
    };
 
    static tid_t getCurrentThreadId() noexcept;
    static const char *getCurrentThreadName() noexcept;
    static void setCurrentThreadAsMain() noexcept;
    static tid_t getMainThreadId() noexcept;
 
    static Thread::RuntimeData *getCurrentThreadData() noexcept;
 
private:
    static tid_t main_id;
    std::shared_ptr<RuntimeData> data = nullptr;
};
 
} // namespace sese