#include "stdafx.h"
#include <iostream>
#include <chrono>
#include <thread>
int main()
{
using namespace std::chrono_literals;
std::cout << "Hello waiter\n" << std::flush;
auto start = std::chrono::high_resolution_clock::now();
//std::this_thread::sleep_for(2s);
std::this_thread::sleep_for(std::chrono::seconds(2));
auto end = std::chrono::high_resolution_clock::now();
std::chrono::duration<double, std::milli> elapsed = end - start;
std::cout << "Waited " << elapsed.count() << " ms\n";
return 0;
}
Blocks the execution of the current thread for at least the specified sleep_duration
.
This function may block for longer than sleep_duration
due to scheduling or resource contention delays.
The standard recommends that a steady clock is used to measure the duration. If an implementation uses a system clock instead, the wait time may also be sensitive to clock adjustments.
至少在指定的sleep_duration内阻止当前线程的执行。
由于调度或资源争用延迟,此功能可能阻塞的时间比sleep_duration长。
该标准建议使用稳定的时钟来测量持续时间。 如果实现使用系统时钟代替,则等待时间也可能对时钟调整敏感。