#include <iostream> #include <string> #include <thread> #include <mutex> #include <condition_variable> std::mutex m; std::condition_variable cv; std::string data; bool ready = false; bool processed = false; void
std::condition_variable cv; bool ready = false; void print_id (int id) { std::unique_lock<std::mutex> lck(mtx); while (!ready) cv.wait(lck); // ... std::cout << "thread " << id << '\n'; } void go() { std::unique_lock<std::mutex> lck(mtx); ready = true; cv....
#include <iostream> #include <string> #include <thread> #include <mutex> #include <condition_variable> #include <chrono> std::mutex m; std::condition_variable cv; void fn(){ std::cout<<"fn start\n"; std::unique_lock<std::mutex> lck(m); cv.wait(lck); std::cout<<"fn finish\...
pthread_mutex_tmutex; intshared_variable=0; void*increment(void*arg) { pthread_mutex_lock(&mutex);// 加锁,进入临界区 shared_variable++; printf("Thread %ld incremented shared_variable: %d\n", (long)arg,shared_variable); pthread_mutex_unlock(&mutex);// 解锁,离开临界区 returnNULL; } intm...
<thread> // std::thread, std::this_thread::yield #include <mutex> // std::mutex, std::unique_lock #include <condition_variable> // std::condition_variable std::mutex mtx; std::condition_variable cv; int cargo = 0; bool shipment_available() { return cargo!=0; } void consume (...
6. condition_variable 6.1 wait 6.2 wait_for 7.std::async 7.1 理解 7.2 异同 7.3 参数 7.4 注意 7.5 async不确定性问题的解决 7.6使用 8.std::future 9.std::promise 10.std::packaged_task 11.线程池 11, 安全工作队列实现 10.2 线程池 10.3 线程池测试 12.线程在网络编程中的应用 多线程(multithrea...
std::mutex g_cvMutex;std::condition_variable g_cv;//缓存区std::deque<int>g_data_deque;//缓存区最大数目const int MAX_NUM = 30;//数据int g_next_index = 0;//生产者,消费者线程个数const int PRODUCER_THREAD_NUM = 3;const int CONSUMER_THREAD_NUM = 3;void producer_thread(int thread_...
一、thread thread概述 thread可以用来启动一个线程,其参数也接受一个callable object(函数、成员函数、函数对象、lambda) callable object的传参方式与async()一样,并且也有传值调用和传引用调用的方式,详情可以参阅前一篇async()的文章
#include <condition_variable> #include <iostream> #include <mutex> #include <queue> template <typename T> class TSQueue { private: std::queue<T> m_queue; // mutex for thread synchronization std::mutex m_mutex; // Condition variable for signaling std::condition_variable m_cond; public: ...
类型:std::condition_variable(只和std::mutex一起工作) 和 std::condition_variable_any(符合类似互斥元的最低标准的任何东西一起工作)。 最为常见的就是在线程池中,初始情况下因为没有任务使得任务队列为空,此时线程池中的线程因为“任务队列为空”这个条件处于阻塞状态。一旦有任务进来,就会以信号量的方式唤醒...