#include <condition_variable> // std::condition_variable, std::cv_status std::condition_variable cv; int value; void do_read_value() { std::cin >> value; cv.notify_one(); } int main () { std::cout << "Please, enter an integer (I'll be printing dots): \n"; std::thread t...
#include <iostream>//std::cout#include <thread>//std::thread#include <chrono>//std::chrono::seconds#include <mutex>//std::mutex, std::unique_lock#include <condition_variable>//std::condition_variable, std::cv_statusstd::condition_variable cv;intvalue;voiddo_read_value() { std::cin>>...
std::unique_lock#include <condition_variable> // std::condition_variable, std::cv_statusstd::condition_variable cv;int value;void do_read_value(){ std::cin >> value; cv.notify_one();}int main (){ std::cout << "Please,
<condition_variable > 头⽂件主要包含了与条件变量相关的类和函数。相关的类包括 std::condition_variable 和 std::condition_variable_any，还有枚举类型std::cv_status。另外还包括函数 std::notify_all_at_thread_exit()，下⾯分别介绍⼀下以上⼏种类型。std::condition_variable 类介绍 std::condition_...
好了,到此为止,<condition_variable> 头文件中的两个条件变量类(std::condition_variable 和 std::condition_variable_any)、枚举类型(std::cv_status)、以及辅助函数(std::notify_all_at_thread_exit)都已经介绍完了。 1、 C++ 内存对齐 3、 多线程队列的算法优化返回搜狐,查看更多...
<condition_variable > 头文件主要包含了与条件变量相关的类和函数。相关的类包括 std::condition_variable 和 std::condition_variable_any,还有枚举类型std::cv_status。另外还包括函数 std::notify_all_at_thread_exit(),下面分别介绍一下以上几种类型。
while (cv3.wait_for(lck, std::chrono::seconds(1)) == std::cv_status::timeout) { std::cout << '.' << std::endl; } std::cout << "You entered: " << value << '\n'; th.join(); return 0; } /// // reference: http://www.cplusplus.com/reference/condition_variable/condi...
(), 超时, 线程伪唤醒, 并且谓词为 true 时结束等待. cv_status wait_for(std::unique_lock<std::mutex>& lock, const std::chrono::duration<Rep, Period>& relative_time); 调用 notify_one(), notify_all(), 指定时间内达成条件或线程伪唤醒时,结束等待 bool wait_for(std::unique_lock<std::...
{std::cin>>value;cv.notify_one();}intmain(){std::cout<<"Please, enter an integer (I'll be printing dots):\n";std::threadth(read_value);std::mutexmtx;std::unique_lock<std::mutex>lck(mtx);while(cv.wait_for(lck,std::chrono::seconds(1))==std::cv_status::timeout){std::...
opencv的头文件:#include 2、然后使用cv::imread()函数可以读取一张图片;3、使用cv::imwrite()函数输出转换后的图片;jpg转png...std::string outputFileName = "output.png"; // 将图片格式从 JPEG 转换为 PNG cv::imwrite(outputFileName...Output file: " std::endl; return 0;}YUV直接转BMPC/C++也...