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std::this_thread::sleep_for

From cppreference.com
< cpp‎ | thread
 
 
Concurrency support library
Threads
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this_thread namespace
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sleep_for
(C++11)
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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.

Contents

[edit] Parameters

sleep_duration - time duration to sleep

[edit] Return value

(none)

[edit] 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).

[edit] Example

#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

[edit] See also

stops the execution of the current thread until a specified time point
(function) [edit]