\n| \u8c03\u7528\u6b21\u6570<\/td>\n | \u53ea\u80fd join \u4e00\u6b21<\/td>\n | \u53ea\u80fd detach \u4e00\u6b21<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n3. \u7ebf\u7a0b\u540c\u6b65\u673a\u5236 (Synchronization)<\/h3>\n\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6，\u9700\u540c\u6b65\u4ee5\u907f\u514d\u6570\u636e\u7ade\u4e89 (Data Race) \u548c\u7ade\u6001\u6761\u4ef6 (Race Condition)\u3002\u4e3b\u8981\u673a\u5236：<\/p>\n 3.1 \u4e92\u65a5\u9501 (Mutexes, pthread_mutex_t)<\/h4>\n\u63d0\u4f9b\u5bf9\u5171\u4eab\u8d44\u6e90\u7684\u72ec\u5360\u8bbf\u95ee\u3002\u7ebf\u7a0b\u8bbf\u95ee\u4e34\u754c\u533a\u524d\u52a0\u9501，\u8bbf\u95ee\u540e\u89e3\u9501\u3002<\/p>\n #include <pthread.h>
\npthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; \/\/ \u9759\u6001\u521d\u59cb\u5316<\/p>\n \/\/ \u52a8\u6001\u521d\u59cb\u5316
\nint pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
\nint pthread_mutex_destroy(pthread_mutex_t *mutex);<\/p>\n int pthread_mutex_lock(pthread_mutex_t *mutex); \/\/ \u963b\u585e\u52a0\u9501
\nint pthread_mutex_trylock(pthread_mutex_t *mutex); \/\/ \u975e\u963b\u585e\u52a0\u9501
\nint pthread_mutex_unlock(pthread_mutex_t *mutex); \/\/ \u89e3\u9501<\/p>\n \u793a\u4f8b (\u94f6\u884c\u8d26\u6237\u5b58\u53d6\u6b3e)：<\/p>\n struct account {
\n pthread_mutex_t lock;
\n int balance;
\n};<\/p>\n void* deposit(void* arg) {
\n struct account *acc = (struct account*)arg;
\n for (int i = 0; i < 10000; ++i) {
\n pthread_mutex_lock(&acc->lock);
\n acc->balance += 1;
\n pthread_mutex_unlock(&acc->lock);
\n }
\n return NULL;
\n}
\n\/\/ … \u7c7b\u4f3c\u5730\u5b9e\u73b0 withdraw …<\/p>\n 3.2 \u6761\u4ef6\u53d8\u91cf (Condition Variables, pthread_cond_t)<\/h4>\n\u7528\u4e8e\u7ebf\u7a0b\u95f4\u7b49\u5f85\u67d0\u4e2a\u6761\u4ef6\u6210\u7acb\u3002\u5fc5\u987b\u4e0e\u4e92\u65a5\u9501\u914d\u5408\u4f7f\u7528\u3002<\/p>\n #include <pthread.h>
\npthread_cond_t cond = PTHREAD_COND_INITIALIZER;<\/p>\n int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr);
\nint pthread_cond_destroy(pthread_cond_t *cond);<\/p>\n int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); \/\/ \u7b49\u5f85\u6761\u4ef6，\u91ca\u653e\u9501，\u88ab\u5524\u9192\u540e\u91cd\u65b0\u83b7\u5f97\u9501
\nint pthread_cond_signal(pthread_cond_t *cond); \/\/ \u5524\u9192\u81f3\u5c11\u4e00\u4e2a\u7b49\u5f85\u8be5\u6761\u4ef6\u7684\u7ebf\u7a0b
\nint pthread_cond_broadcast(pthread_cond_t *cond); \/\/ \u5524\u9192\u6240\u6709\u7b49\u5f85\u8be5\u6761\u4ef6\u7684\u7ebf\u7a0b<\/p>\n \u4f7f\u7528\u8303\u5f0f (\u751f\u4ea7\u8005-\u6d88\u8d39\u8005)：<\/p>\n pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
\npthread_cond_t cond = PTHREAD_COND_INITIALIZER;
\nqueue_t queue; \/\/ \u5171\u4eab\u961f\u5217<\/p>\n \/\/ \u751f\u4ea7\u8005\u7ebf\u7a0b
\nvoid* producer(void* arg) {
\n while (\/* \u6709\u6570\u636e\u751f\u4ea7 *\/) {
\n data_t data = produce_data();
\n pthread_mutex_lock(&mutex);
\n enqueue(&queue, data); \/\/ \u5c06\u6570\u636e\u653e\u5165\u961f\u5217
\n pthread_cond_signal(&cond); \/\/ \u901a\u77e5\u53ef\u80fd\u6709\u6d88\u8d39\u8005\u5728\u7b49\u5f85
\n pthread_mutex_unlock(&mutex);
\n }
\n return NULL;
\n}<\/p>\n \/\/ \u6d88\u8d39\u8005\u7ebf\u7a0b
\nvoid* consumer(void* arg) {
\n while (\/* \u9700\u8981\u6d88\u8d39 *\/) {
\n pthread_mutex_lock(&mutex);
\n while (queue_empty(&queue)) { \/\/ \u5fc5\u987b\u7528 while \u5faa\u73af\u68c0\u67e5，\u907f\u514d\u865a\u5047\u5524\u9192
\n pthread_cond_wait(&cond, &mutex); \/\/ \u7b49\u5f85\u6761\u4ef6，\u91ca\u653e\u9501
\n }
\n data_t data = dequeue(&queue); \/\/ \u961f\u5217\u4e0d\u7a7a，\u53d6\u51fa\u6570\u636e
\n pthread_mutex_unlock(&mutex);
\n consume_data(data);
\n }
\n return NULL;
\n}<\/p>\n \u5173\u952e\u70b9：<\/p>\n \n- pthread_cond_wait \u4f1a\u91ca\u653e\u5173\u8054\u7684\u4e92\u65a5\u9501，\u5e76\u963b\u585e\u7ebf\u7a0b\u3002<\/li>\n
- \u88ab\u5524\u9192\u65f6（\u901a\u8fc7 signal \u6216 broadcast），\u5b83\u4f1a\u5728\u8fd4\u56de\u524d\u91cd\u65b0\u83b7\u5f97\u4e92\u65a5\u9501\u3002<\/li>\n
- \u5524\u9192\u540e，\u6761\u4ef6\u53ef\u80fd\u4e0d\u518d\u6210\u7acb（\u5176\u4ed6\u7ebf\u7a0b\u62a2\u5148\u6d88\u8d39\u4e86），\u56e0\u6b64\u5fc5\u987b\u5728\u5faa\u73af\u4e2d\u68c0\u67e5\u6761\u4ef6 (while (condition))\u3002<\/li>\n<\/ul>\n
3.3 \u5176\u4ed6\u540c\u6b65\u673a\u5236<\/h4>\n\n- \u8bfb\u5199\u9501 (pthread_rwlock_t): \u5141\u8bb8\u591a\u4e2a\u8bfb\u7ebf\u7a0b\u5e76\u53d1，\u4f46\u5199\u7ebf\u7a0b\u72ec\u5360\u3002<\/li>\n
- \u4fe1\u53f7\u91cf (sem_t): \u66f4\u901a\u7528\u7684\u8ba1\u6570\u5668，\u53ef\u7528\u4e8e\u63a7\u5236\u5e76\u53d1\u8bbf\u95ee\u6570\u91cf\u3002<\/li>\n
- \u5c4f\u969c (pthread_barrier_t): \u8ba9\u4e00\u7ec4\u7ebf\u7a0b\u5728\u4ee3\u7801\u4e2d\u7684\u67d0\u4e00\u70b9\u7b49\u5f85，\u76f4\u5230\u6240\u6709\u6210\u5458\u90fd\u5230\u8fbe\u3002<\/li>\n<\/ul>\n
4. C++ \u591a\u7ebf\u7a0b\u5b9e\u6218 (std::thread)<\/h3>\nC++11 \u5f15\u5165\u4e86 <thread> \u5934\u6587\u4ef6，\u63d0\u4f9b\u4e86\u66f4\u73b0\u4ee3\u3001\u9762\u5411\u5bf9\u8c61\u7684\u7ebf\u7a0b\u63a5\u53e3 std::thread，\u901a\u5e38\u6bd4\u76f4\u63a5\u4f7f\u7528 pthread API \u66f4\u7b80\u6d01\u5b89\u5168\u3002<\/p>\n 4.1 \u521b\u5efa\u7ebf\u7a0b<\/h4>\n#include <thread>
\n#include <iostream><\/p>\n void hello() {
\n std::cout << "Hello Concurrent World from thread!" << std::endl;
\n}<\/p>\n int main() {
\n std::thread t(hello); \/\/ \u521b\u5efa\u5e76\u542f\u52a8\u7ebf\u7a0b，\u6267\u884c hello \u51fd\u6570
\n t.join(); \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f
\n \/\/ t.detach(); \/\/ \u6216\u8005\u5206\u79bb\u5b83
\n return 0;
\n}<\/p>\n \n- \u7ebf\u7a0b\u51fd\u6570\u53ef\u4ee5\u662f\u4efb\u4f55\u53ef\u8c03\u7528\u5bf9\u8c61（\u51fd\u6570\u3001\u51fd\u6570\u5bf9\u8c61\u3001Lambda \u8868\u8fbe\u5f0f）\u3002<\/li>\n
- \u6ce8\u610f：\u5982\u679c\u7ebf\u7a0b\u51fd\u6570\u629b\u51fa\u5f02\u5e38\u4e14\u672a\u88ab\u6355\u83b7，\u7a0b\u5e8f\u5c06\u8c03\u7528 std::terminate\u3002<\/li>\n<\/ul>\n
4.2 \u4f20\u9012\u53c2\u6570<\/h4>\n\u53c2\u6570\u6309\u503c\u590d\u5236\u6216\u79fb\u52a8\u4f20\u9012\u5230\u7ebf\u7a0b\u5185\u90e8\u5b58\u50a8\u3002\u82e5\u9700\u4f20\u9012\u5f15\u7528，\u9700\u4f7f\u7528 std::ref \u6216 std::cref \u5305\u88c5\u3002<\/p>\n void modify(int &x) {
\n x = 42;
\n}<\/p>\n int main() {
\n int value = 10;
\n std::thread t(modify, std::ref(value)); \/\/ \u4f20\u9012\u5f15\u7528
\n t.join();
\n std::cout << value << std::endl; \/\/ \u8f93\u51fa 42
\n return 0;
\n}<\/p>\n 4.3 \u7b49\u5f85\u4e0e\u5206\u79bb (join, detach)<\/h4>\n\u4e0e pthread \u6982\u5ff5\u4e00\u81f4：<\/p>\n std::thread t(background_task);<\/p>\n if (t.joinable()) { \/\/ \u68c0\u67e5\u662f\u5426\u53ef\u4ee5 join \u6216 detach
\n t.join(); \/\/ \u7b49\u5f85 t \u7ed3\u675f
\n \/\/ \u6216 t.detach(); \/\/ \u5206\u79bb t
\n}<\/p>\n \n- \u5fc5\u987b\u5728 std::thread \u5bf9\u8c61\u9500\u6bc1\u524d\u51b3\u5b9a\u662f join \u8fd8\u662f detach（\u6216\u5df2 join\/detach），\u5426\u5219\u7a0b\u5e8f\u7ec8\u6b62 (std::terminate)\u3002<\/li>\n<\/ul>\n
4.4 C++ \u540c\u6b65\u673a\u5236 (<mutex>, <condition_variable>)<\/h4>\nC++11 \u4e5f\u63d0\u4f9b\u4e86\u6807\u51c6\u5e93\u7684\u4e92\u65a5\u9501\u548c\u6761\u4ef6\u53d8\u91cf\u3002<\/p>\n 4.4.1 \u4e92\u65a5\u9501<\/h5>\n#include <mutex>
\nstd::mutex mtx;<\/p>\n void safe_increment(int &counter) {
\n std::lock_guard<std::mutex> lock(mtx); \/\/ RAII: \u6784\u9020\u65f6\u52a0\u9501，\u6790\u6784\u65f6\u89e3\u9501
\n ++counter;
\n \/\/ \u4e5f\u53ef\u4f7f\u7528 std::unique_lock (\u66f4\u7075\u6d3b，\u53ef\u5ef6\u8fdf\u52a0\u9501\u3001\u63d0\u524d\u89e3\u9501，\u7528\u4e8e\u6761\u4ef6\u53d8\u91cf)
\n}<\/p>\n \n- std::lock_guard: \u4f5c\u7528\u57df\u9501，\u6784\u9020\u65f6\u9501\u5b9a，\u6790\u6784\u65f6\u89e3\u9501\u3002<\/li>\n
- std::unique_lock: \u66f4\u7075\u6d3b，\u652f\u6301\u5ef6\u8fdf\u9501\u5b9a\u3001\u624b\u52a8\u9501\u5b9a\u89e3\u9501\u3001\u8f6c\u79fb\u6240\u6709\u6743\u7b49\u3002<\/li>\n<\/ul>\n
4.4.2 \u6761\u4ef6\u53d8\u91cf<\/h5>\n#include <mutex>
\n#include <condition_variable>
\n#include <queue><\/p>\n std::mutex mtx;
\nstd::condition_variable cv;
\nstd::queue<data_t> data_queue;<\/p>\n \/\/ \u751f\u4ea7\u8005
\nvoid producer() {
\n while (\/* … *\/) {
\n data_t data = produce_data();
\n {
\n std::lock_guard<std::mutex> lk(mtx);
\n data_queue.push(data);
\n }
\n cv.notify_one(); \/\/ \u901a\u77e5\u4e00\u4e2a\u6d88\u8d39\u8005
\n }
\n}<\/p>\n \/\/ \u6d88\u8d39\u8005
\nvoid consumer() {
\n while (\/* … *\/) {
\n std::unique_lock<std::mutex> lk(mtx); \/\/ \u5fc5\u987b\u7528 unique_lock
\n cv.wait(lk, []{ return !data_queue.empty(); }); \/\/ \u7b49\u5f85\u6761\u4ef6\u6210\u7acb，\u4f7f\u7528 Lambda \u8c13\u8bcd\u68c0\u67e5
\n data_t data = data_queue.front();
\n data_queue.pop();
\n lk.unlock(); \/\/ \u53ef\u4ee5\u63d0\u524d\u89e3\u9501，\u5904\u7406\u6570\u636e\u65f6\u4e0d\u9700\u9501
\n consume_data(data);
\n }
\n}<\/p>\n \n- \u4f7f\u7528 std::unique_lock \u914d\u5408\u6761\u4ef6\u53d8\u91cf，\u56e0\u4e3a wait \u65b9\u6cd5\u9700\u8981\u80fd\u89e3\u9501\u548c\u91cd\u65b0\u52a0\u9501\u3002<\/li>\n
- cv.wait(lk, predicate) \u7b49\u4ef7\u4e8e： while (!predicate()) {
\n cv.wait(lk);
\n}<\/p>\n<\/li>\n<\/ul>\n4.4.3 std::future \u548c std::async<\/h5>\n\u7528\u4e8e\u5f02\u6b65\u6267\u884c\u4efb\u52a1\u5e76\u83b7\u53d6\u7ed3\u679c\u3002<\/p>\n #include <future>
\n#include <iostream><\/p>\n int compute_value() {
\n \/\/ … \u8017\u65f6\u8ba1\u7b97 …
\n return 42;
\n}<\/p>\n int main() {
\n std::future<int> fut = std::async(std::launch::async, compute_value); \/\/ \u5f02\u6b65\u6267\u884c
\n \/\/ … \u505a\u5176\u4ed6\u4e8b\u60c5 …
\n int result = fut.get(); \/\/ \u83b7\u53d6\u7ed3\u679c（\u5982\u679c\u9700\u8981，\u4f1a\u7b49\u5f85\u8ba1\u7b97\u5b8c\u6210）
\n std::cout << "Result: " << result << std::endl;
\n return 0;
\n}<\/p>\n \n- std::async \u53ef\u4ee5\u6307\u5b9a\u7b56\u7565 (std::launch::async \u7acb\u5373\u5f02\u6b65\u6267\u884c, std::launch::deferred \u5ef6\u8fdf\u6267\u884c\u76f4\u5230\u8c03\u7528 get\/wait)\u3002<\/li>\n
- fut.get() \u963b\u585e\u76f4\u5230\u7ed3\u679c\u53ef\u7528，\u5e76\u53ea\u80fd\u8c03\u7528\u4e00\u6b21\u3002fut.wait() \u53ea\u7b49\u5f85\u5b8c\u6210\u4e0d\u53d6\u7ed3\u679c\u3002<\/li>\n<\/ul>\n
5. \u7ebf\u7a0b\u6c60 (Thread Pool)<\/h3>\n\u9891\u7e41\u521b\u5efa\u9500\u6bc1\u7ebf\u7a0b\u5f00\u9500\u5927\u3002\u7ebf\u7a0b\u6c60\u9884\u5148\u521b\u5efa\u4e00\u7ec4\u7ebf\u7a0b，\u7b49\u5f85\u4efb\u52a1\u5230\u6765\u3002\u4efb\u52a1\u88ab\u653e\u5165\u961f\u5217，\u7a7a\u95f2\u7ebf\u7a0b\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\u6267\u884c\u3002<\/p>\n \u6838\u5fc3\u7ec4\u4ef6：<\/p>\n - \u7ebf\u7a0b\u961f\u5217：\u4e00\u7ec4\u5de5\u4f5c\u7ebf\u7a0b\u3002<\/li>\n
- \u4efb\u52a1\u961f\u5217：\u5b58\u653e\u5f85\u6267\u884c\u7684\u4efb\u52a1（\u901a\u5e38\u662f\u51fd\u6570\u5bf9\u8c61）\u3002<\/li>\n
- \u540c\u6b65\u673a\u5236：\u4e92\u65a5\u9501\u4fdd\u62a4\u4efb\u52a1\u961f\u5217，\u6761\u4ef6\u53d8\u91cf\u901a\u77e5\u7ebf\u7a0b\u6709\u65b0\u4efb\u52a1\u3002<\/li>\n
\u7b80\u5316\u7248 C++11 \u7ebf\u7a0b\u6c60\u793a\u4f8b：<\/p>\n #include <thread>
\n#include <mutex>
\n#include <condition_variable>
\n#include <queue>
\n#include <functional>
\n#include <vector>
\n#include <stdexcept><\/p>\n class ThreadPool {
\npublic:
\n ThreadPool(size_t threads);
\n ~ThreadPool();<\/p>\n template<class F, class… Args>
\n auto enqueue(F&& f, Args&&… args)
\n -> std::future<typename std::result_of<F(Args…)>::type>;<\/p>\n private:
\n std::vector<std::thread> workers;
\n std::queue<std::function<void()>> tasks;
\n std::mutex queue_mutex;
\n std::condition_variable condition;
\n bool stop;
\n};<\/p>\n \/\/ \u6784\u9020\u51fd\u6570：\u521b\u5efa threads \u4e2a\u5de5\u4f5c\u7ebf\u7a0b
\nThreadPool::ThreadPool(size_t threads) : stop(false) {
\n for (size_t i = 0; i < threads; ++i) {
\n workers.emplace_back([this] {
\n for (;;) {
\n std::function<void()> task;
\n {
\n std::unique_lock<std::mutex> lock(this->queue_mutex);
\n this->condition.wait(lock,
\n [this]{ return this->stop || !this->tasks.empty(); });
\n if (this->stop && this->tasks.empty())
\n return;
\n task = std::move(this->tasks.front());
\n this->tasks.pop();
\n }
\n task(); \/\/ \u6267\u884c\u4efb\u52a1
\n }
\n });
\n }
\n}<\/p>\n \/\/ \u6790\u6784\u51fd\u6570：\u505c\u6b62\u6240\u6709\u7ebf\u7a0b
\nThreadPool::~ThreadPool() {
\n {
\n std::unique_lock<std::mutex> lock(queue_mutex);
\n stop = true;
\n }
\n condition.notify_all(); \/\/ \u5524\u9192\u6240\u6709\u7ebf\u7a0b
\n for (std::thread &worker : workers) {
\n worker.join(); \/\/ \u7b49\u5f85\u6240\u6709\u7ebf\u7a0b\u7ed3\u675f
\n }
\n}<\/p>\n \/\/ \u6dfb\u52a0\u4efb\u52a1\u5230\u961f\u5217
\ntemplate<class F, class… Args>
\nauto ThreadPool::enqueue(F&& f, Args&&… args)
\n -> std::future<typename std::result_of<F(Args…)>::type> {
\n using return_type = typename std::result_of<F(Args…)>::type;<\/p>\n auto task = std::make_shared<std::packaged_task<return_type()>>(
\n std::bind(std::forward<F>(f), std::forward<Args>(args)…)
\n );<\/p>\n std::future<return_type> res = task->get_future();
\n {
\n std::unique_lock<std::mutex> lock(queue_mutex);
\n if (stop)
\n throw std::runtime_error("enqueue on stopped ThreadPool");
\n tasks.emplace([task](){ (*task)(); }); \/\/ \u5c06\u53ef\u8c03\u7528\u5bf9\u8c61\u653e\u5165\u4efb\u52a1\u961f\u5217
\n }
\n condition.notify_one(); \/\/ \u901a\u77e5\u4e00\u4e2a\u5de5\u4f5c\u7ebf\u7a0b
\n return res;
\n}<\/p>\n \u4f7f\u7528：<\/p>\n ThreadPool pool(4); \/\/ 4\u4e2a\u5de5\u4f5c\u7ebf\u7a0b<\/p>\n auto result = pool.enqueue([](int answer) {
\n std::this_thread::sleep_for(std::chrono::seconds(1));
\n return answer;
\n}, 42);<\/p>\n \/\/ … \u505a\u5176\u4ed6\u4e8b …
\nstd::cout << "Result: " << result.get() << std::endl; \/\/ \u7b49\u5f85\u5e76\u83b7\u53d6\u7ed3\u679c<\/p>\n 6. \u7ebf\u7a0b\u5b89\u5168\u4e0e\u5e38\u89c1\u9677\u9631<\/h3>\n\n- \u6570\u636e\u7ade\u4e89 (Data Race)：\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bfb\u5199\u540c\u4e00\u5185\u5b58\u4f4d\u7f6e\u4e14\u65e0\u540c\u6b65\u3002\u4f7f\u7528\u4e92\u65a5\u9501\u6216\u539f\u5b50\u64cd\u4f5c\u89e3\u51b3\u3002<\/li>\n
- \u6b7b\u9501 (Deadlock)：\u4e24\u4e2a\u6216\u591a\u4e2a\u7ebf\u7a0b\u76f8\u4e92\u7b49\u5f85\u5bf9\u65b9\u6301\u6709\u7684\u9501\u3002\u907f\u514d\u65b9\u6cd5：\n
\n- \u9501\u987a\u5e8f：\u6240\u6709\u7ebf\u7a0b\u6309\u76f8\u540c\u987a\u5e8f\u83b7\u53d6\u9501\u3002<\/li>\n
- \u907f\u514d\u5d4c\u5957\u9501：\u5c3d\u91cf\u907f\u514d\u5728\u4e00\u4e2a\u9501\u4fdd\u62a4\u533a\u5185\u83b7\u53d6\u53e6\u4e00\u4e2a\u9501\u3002<\/li>\n
- \u4f7f\u7528 std::lock \u6216 std::scoped_lock (C++17)：\u4e00\u6b21\u9501\u5b9a\u591a\u4e2a\u4e92\u65a5\u91cf，\u907f\u514d\u6b7b\u9501\u3002<\/li>\n<\/ul>\n<\/li>\n
- \u865a\u5047\u5524\u9192 (Spurious Wakeup)：\u6761\u4ef6\u53d8\u91cf wait \u53ef\u80fd\u5728\u6ca1\u6709 signal\/broadcast \u7684\u60c5\u51b5\u4e0b\u8fd4\u56de\u3002\u56e0\u6b64\u5fc5\u987b\u5728\u5faa\u73af\u4e2d\u68c0\u67e5\u6761\u4ef6\u3002<\/li>\n
- \u4f18\u5148\u7ea7\u53cd\u8f6c (Priority Inversion)：\u4f4e\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6301\u6709\u9ad8\u4f18\u5148\u7ea7\u7ebf\u7a0b\u9700\u8981\u7684\u9501\u3002\u53ef\u901a\u8fc7\u4f18\u5148\u7ea7\u7ee7\u627f\u534f\u8bae\u89e3\u51b3 (\u5982 pthread_mutexattr_setprotocol)\u3002<\/li>\n<\/ul>\n
7. \u8c03\u8bd5\u4e0e\u5206\u6790\u5de5\u5177<\/h3>\n\n- Valgrind (Helgrind, DRD)：\u68c0\u6d4b\u7ebf\u7a0b\u9519\u8bef（\u6570\u636e\u7ade\u4e89\u3001\u6b7b\u9501）\u3002<\/li>\n
- GDB：\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f (info threads, thread <id>, break <function> thread <id>).<\/li>\n
- ps -eLf \/ top -H：\u67e5\u770b\u8fdb\u7a0b\u7684\u7ebf\u7a0b\u4fe1\u606f\u3002<\/li>\n
- perf：\u6027\u80fd\u5206\u6790，\u67e5\u770b\u7ebf\u7a0b\u8c03\u5ea6\u3001CPU \u4f7f\u7528\u3001Cache \u547d\u4e2d\u7387\u7b49\u3002<\/li>\n<\/ul>\n
\u603b\u7ed3<\/h3>\n\u7406\u89e3 Linux \u7ebf\u7a0b\u7684\u6838\u5fc3\u5728\u4e8e\u638c\u63e1\u5176\u751f\u547d\u5468\u671f\u7ba1\u7406（\u521b\u5efa\u3001\u7b49\u5f85\u3001\u5206\u79bb）\u548c\u540c\u6b65\u673a\u5236（\u4e92\u65a5\u9501\u3001\u6761\u4ef6\u53d8\u91cf）\u3002C++ \u7684 std::thread \u53ca\u76f8\u5173\u5e93\u63d0\u4f9b\u4e86\u66f4\u73b0\u4ee3\u4fbf\u6377\u7684\u63a5\u53e3\u3002\u7ebf\u7a0b\u6c60\u662f\u7ba1\u7406\u5e76\u53d1\u4efb\u52a1\u7684\u5e38\u7528\u6a21\u5f0f\u3002\u59cb\u7ec8\u8b66\u60d5\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898（\u6570\u636e\u7ade\u4e89\u3001\u6b7b\u9501），\u5e76\u5584\u7528\u8c03\u8bd5\u5de5\u5177\u3002\u901a\u8fc7\u5408\u7406\u7684\u8bbe\u8ba1\u548c\u5b9e\u8df5，\u591a\u7ebf\u7a0b\u7f16\u7a0b\u80fd\u663e\u8457\u63d0\u5347\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u54cd\u5e94\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" Linux \u7ebf\u7a0b\u6df1\u5ea6\u6307\u5357：\u4ece\u7b49\u5f85\u3001\u5206\u79bb\u5230 C \u591a\u7ebf\u7a0b\u5b9e\u6218
\n1. \u7ebf\u7a0b\u57fa\u7840\u6982\u5ff5\u56de\u987e
\n\u5728 Linux \u7cfb\u7edf\u4e2d，\u7ebf\u7a0b\u662f\u8f7b\u91cf\u7ea7\u7684\u6267\u884c\u5355\u5143，\u5171\u4eab\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49\u8d44\u6e90，\u4f46\u62e5\u6709\u72ec\u7acb\u7684\u6808\u3001\u5bc4\u5b58\u5668\u72b6\u6001\u548c\u7a0b\u5e8f\u8ba1\u6570\u5668\u3002\u4f7f\u7528 POSIX \u7ebf\u7a0b\u5e93 (pthread) \u8fdb\u884c\u7ebf\u7a0b\u64cd\u4f5c\u3002
\n\u521b\u5efa\u7ebf\u7a0b：pthread_create\u83b7\u53d6\u7ebf\u7a0b ID：pthread_self\u7ec8\u6b62\u7ebf\u7a0b：pthread_e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,190],"topic":[],"class_list":["post-64214","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-190"],"yoast_head":"\n Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/64214.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Linux \u7ebf\u7a0b\u6df1\u5ea6\u6307\u5357：\u4ece\u7b49\u5f85\u3001\u5206\u79bb\u5230 C \u591a\u7ebf\u7a0b\u5b9e\u6218 1. \u7ebf\u7a0b\u57fa\u7840\u6982\u5ff5\u56de\u987e \u5728 Linux \u7cfb\u7edf\u4e2d，\u7ebf\u7a0b\u662f\u8f7b\u91cf\u7ea7\u7684\u6267\u884c\u5355\u5143，\u5171\u4eab\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49\u8d44\u6e90，\u4f46\u62e5\u6709\u72ec\u7acb\u7684\u6808\u3001\u5bc4\u5b58\u5668\u72b6\u6001\u548c\u7a0b\u5e8f\u8ba1\u6570\u5668\u3002\u4f7f\u7528 POSIX \u7ebf\u7a0b\u5e93 (pthread) \u8fdb\u884c\u7ebf\u7a0b\u64cd\u4f5c\u3002 \u521b\u5efa\u7ebf\u7a0b：pthread_create\u83b7\u53d6\u7ebf\u7a0b ID：pthread_self\u7ec8\u6b62\u7ebf\u7a0b：pthread_e\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/64214.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-22T19:08:18+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/64214.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/64214.html\",\"name\":\"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-01-22T19:08:18+00:00\",\"dateModified\":\"2026-01-22T19:08:18+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/64214.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/64214.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/64214.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/64214.html","og_locale":"zh_CN","og_type":"article","og_title":"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"Linux \u7ebf\u7a0b\u6df1\u5ea6\u6307\u5357：\u4ece\u7b49\u5f85\u3001\u5206\u79bb\u5230 C \u591a\u7ebf\u7a0b\u5b9e\u6218 1. \u7ebf\u7a0b\u57fa\u7840\u6982\u5ff5\u56de\u987e \u5728 Linux \u7cfb\u7edf\u4e2d，\u7ebf\u7a0b\u662f\u8f7b\u91cf\u7ea7\u7684\u6267\u884c\u5355\u5143，\u5171\u4eab\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49\u8d44\u6e90，\u4f46\u62e5\u6709\u72ec\u7acb\u7684\u6808\u3001\u5bc4\u5b58\u5668\u72b6\u6001\u548c\u7a0b\u5e8f\u8ba1\u6570\u5668\u3002\u4f7f\u7528 POSIX \u7ebf\u7a0b\u5e93 (pthread) \u8fdb\u884c\u7ebf\u7a0b\u64cd\u4f5c\u3002 \u521b\u5efa\u7ebf\u7a0b：pthread_create\u83b7\u53d6\u7ebf\u7a0b ID：pthread_self\u7ec8\u6b62\u7ebf\u7a0b：pthread_e","og_url":"https:\/\/www.wsisp.com\/helps\/64214.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-01-22T19:08:18+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"8 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/64214.html","url":"https:\/\/www.wsisp.com\/helps\/64214.html","name":"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-01-22T19:08:18+00:00","dateModified":"2026-01-22T19:08:18+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/64214.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/64214.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/64214.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"Linux\u7ebf\u7a0b\u5b9e\u6218\uff1a\u4ece\u7b49\u5f85\u5230C++\u591a\u7ebf\u7a0b"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/64214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=64214"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/64214\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=64214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=64214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=64214"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=64214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |