Difference between revisions of "cpp/thread/sleep for"
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Blocks the execution of the current thread for ''at least'' the specified {{tt|sleep_duration}}. | Blocks the execution of the current thread for ''at least'' the specified {{tt|sleep_duration}}. | ||
| − | A steady clock is used to measure the duration. This function may block for longer than {{tt|sleep_duration}} due to scheduling or resource contention delays. | + | A steady clock or system clock(Based on implementation) is used to measure the duration. This function may block for longer than {{tt|sleep_duration}} due to scheduling or resource contention delays. |
===Parameters=== | ===Parameters=== | ||
Revision as of 03:54, 30 April 2017
| 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.
A steady clock or system clock(Based on implementation) is used to measure the duration. This function may block for longer than sleep_duration due to scheduling or resource contention delays.
Contents |
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 <iostream> #include <chrono> #include <thread> int main() { using namespace std::chrono_literals; std::cout << "Hello waiter" << std::endl; auto start = std::chrono::high_resolution_clock::now(); std::this_thread::sleep_for(2s); auto end = std::chrono::high_resolution_clock::now(); std::chrono::duration<double, std::milli> elapsed = end-start; std::cout << "Waited " << elapsed.count() << " ms\n"; }
Possible output:
Hello waiter Waited 2000.12 ms
See also
| (C++11) |
stops the execution of the current thread until a specified time point (function) |
