std::this_thread::sleep_for
From cppreference.com
| Defined in header <thread>
|
||
template< class Rep, class Period >
void sleep_for( const std::chrono::duration<Rep, Period>& sleep_duration );
|
(since C++11) | |
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.
Parameters
| sleep_duration | - | time duration to sleep |
Return value
(none)
Exceptions
Any exception thrown by clock, time_point, or duration during the execution (clocks, time points, and durations provided by the standard library never throw).
Example
Run this code
#include <chrono>
#include <iostream>
#include <thread>
int main()
{
using namespace std::chrono_literals;
std::cout << "Hello waiter\n" << std::flush;
const auto start = std::chrono::high_resolution_clock::now();
std::this_thread::sleep_for(2000ms);
const auto end = std::chrono::high_resolution_clock::now();
const std::chrono::duration<double, std::milli> elapsed = end - start;
std::cout << "Waited " << elapsed << '\n';
}
Possible output:
Hello waiter
Waited 2000.13 ms
See also
(C++11) |
stops the execution of the current thread until a specified time point (function) |
