{"id":326,"date":"2025-09-13T15:46:53","date_gmt":"2025-09-13T07:46:53","guid":{"rendered":"http:\/\/www.tgwttt.xyz\/?p=326"},"modified":"2025-11-24T16:36:58","modified_gmt":"2025-11-24T08:36:58","slug":"%e6%b7%b1%e5%85%a5%e6%b5%85%e5%87%ba%e7%ba%bf%e7%a8%8b%e6%b1%a0","status":"publish","type":"post","link":"https:\/\/www.tgwttt.xyz\/?p=326","title":{"rendered":"\u6df1\u5165\u6d45\u51fa\u7ebf\u7a0b\u6c60"},"content":{"rendered":"\n

\u4ee3\u7801\u4ed3\u5e93\uff1ahttps:\/\/gitee.com\/tgwTTT\/linux-learning-dai\/tree\/master\/ThreadPool2<\/a><\/p>\n\n\n\n

\u5f15\u8a00<\/strong><\/h4>\n\n\n\n

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\u4e00\u3001\u7ebf\u7a0b\u6c60\u7684\u57fa\u672c\u6982\u5ff5<\/strong><\/h4>\n\n\n\n

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    \n
  1. \u6027\u80fd\u74f6\u9888\uff1a\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u6d89\u53ca\u7cfb\u7edf\u8c03\u7528\uff0c\u6d88\u8017CPU\u548c\u5185\u5b58\u8d44\u6e90\u3002<\/li>\n\n\n\n
  2. \u8d44\u6e90\u5931\u63a7\uff1a\u65e0\u9650\u5236\u5730\u521b\u5efa\u7ebf\u7a0b\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u8017\u5c3d\u3002<\/li>\n\n\n\n
  3. \u7f16\u7a0b\u590d\u6742\u6027\uff1a\u624b\u52a8\u7ba1\u7406\u7ebf\u7a0b\u7684\u751f\u547d\u5468\u671f\u5bb9\u6613\u51fa\u9519\u3002<\/li>\n<\/ol>\n\n\n\n

    \u4e8c\u3001\u6838\u5fc3\u7ec4\u4ef6\u4e0e\u5de5\u4f5c\u6d41\u7a0b<\/strong><\/h4>\n\n\n\n

    \u4e00\u4e2a\u5178\u578b\u7684\u7ebf\u7a0b\u6c60\u5305\u542b\u56db\u4e2a\u6838\u5fc3\u7ec4\u4ef6\uff1a\u7ebf\u7a0b\u96c6\u5408\u3001\u4efb\u52a1\u961f\u5217\u3001\u4e92\u65a5\u9501\u548c\u6761\u4ef6\u53d8\u91cf\u3002\u5b83\u4eec\u534f\u540c\u5de5\u4f5c\uff0c\u786e\u4fdd\u4efb\u52a1\u88ab\u5b89\u5168\u3001\u9ad8\u6548\u5730\u5904\u7406\u3002<\/p>\n\n\n\n

    1. \u4e92\u65a5\u9501\uff08Mutex\uff09\u4e0e\u6761\u4ef6\u53d8\u91cf\uff08Condition Variable\uff09<\/h5>\n\n\n\n

    \u4e92\u65a5\u9501\u7528\u4e8e\u4fdd\u62a4\u5171\u4eab\u8d44\u6e90\uff0c\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u5bfc\u81f4\u6570\u636e\u7ade\u4e89\u3002\u6761\u4ef6\u53d8\u91cf\u5219\u7528\u4e8e\u7ebf\u7a0b\u95f4\u7684\u540c\u6b65\uff0c\u5b9e\u73b0\u201c\u7b49\u5f85-\u901a\u77e5\u201d\u673a\u5236\u3002\u4e8c\u8005\u7ed3\u5408\u4f7f\u7528\uff0c\u662f\u6784\u5efa\u7ebf\u7a0b\u6c60\u7684\u57fa\u7840\u3002<\/p>\n\n\n\n

    \/\/ \u4e92\u65a5\u9501\u7c7b\uff0c\u7528\u4e8e\u4fdd\u62a4\u5171\u4eab\u6570\u636e\nclass Mutex {\npublic:\n    Mutex() { pthread_mutex_init(&_mutex, nullptr); }\n    ~Mutex() { pthread_mutex_destroy(&_mutex); }\n    void Lock() { pthread_mutex_lock(&_mutex); }\n    void Unlock() { pthread_mutex_unlock(&_mutex); }\n    pthread_mutex_t* GetPthreadMutex() { return &_mutex; }\nprivate:\n    pthread_mutex_t _mutex;\n};\n\n\/\/ \u6761\u4ef6\u53d8\u91cf\u7c7b\uff0c\u7528\u4e8e\u7ebf\u7a0b\u540c\u6b65\nclass Cond {\npublic:\n    Cond() { pthread_cond_init(&_cond, nullptr); }\n    ~Cond() { pthread_cond_destroy(&_cond); }\n    void Wait(Mutex* mutex) { \n        pthread_cond_wait(&_cond, mutex->GetPthreadMutex()); \n    }\n    void Signal() { pthread_cond_signal(&_cond); }\n    void Broadcast() { pthread_cond_broadcast(&_cond); }\nprivate:\n    pthread_cond_t _cond;\n};<\/code><\/pre>\n\n\n\n
    2. \u4efb\u52a1\u961f\u5217\u4e0e\u7ebf\u7a0b\u5904\u7406\u903b\u8f91<\/p>\n\n\n\n
    \u4efb\u52a1\u961f\u5217\u662f\u4e00\u4e2a\u7ebf\u7a0b\u5b89\u5168\u7684\u961f\u5217\uff0c\u7528\u4e8e\u5b58\u653e\u5f85\u5904\u7406\u7684\u4efb\u52a1\u3002\u5de5\u4f5c\u7ebf\u7a0b\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\u5e76\u6267\u884c\u3002<\/p>\n\n\n\n
    void HandlerTask() {\n    Task task;\n    while (true) {\n        LockGuard lock(_mutex);\n        \/\/ \u4f7f\u7528while\u5faa\u73af\u9632\u6b62\u865a\u5047\u5524\u9192\n        while (_taskq.empty() && _isrunning) {\n            _cond.Wait(&_mutex);\n        }\n        \/\/ \u68c0\u67e5\u7ebf\u7a0b\u6c60\u662f\u5426\u505c\u6b62\n        if (!_isrunning && _taskq.empty()) {\n            break;\n        }\n        \/\/ \u53d6\u51fa\u4efb\u52a1\n        task = std::move(_taskq.front());\n        _taskq.pop();\n    } \/\/ LockGuard\u6790\u6784\uff0c\u81ea\u52a8\u91ca\u653e\u9501\n    \/\/ \u5728\u9501\u5916\u6267\u884c\u4efb\u52a1\uff0c\u907f\u514d\u963b\u585e\u5176\u4ed6\u7ebf\u7a0b\n    task();\n}<\/code><\/pre>\n\n\n\n
    3. \u4efb\u52a1\u63d0\u4ea4\u63a5\u53e3<\/p>\n\n\n\n
    bool Enqueue(const Task& t) {\n    LockGuard lock(_mutex);\n    if (!_isrunning) {\n        return false; \/\/ \u7ebf\u7a0b\u6c60\u5df2\u505c\u6b62\n    }\n    _taskq.push(t);\n    _cond.Signal(); \/\/ \u5524\u9192\u4e00\u4e2a\u7b49\u5f85\u7684\u7ebf\u7a0b\n    return true;\n}<\/code><\/pre>\n\n\n\n
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