C++11this_threadsleep_until(11)

C++11this_threadsleep_until(11)

原文地址：http://www.cplusplus.com/reference/thread/this\_thread/sleep\_until/

function

std::this_thread::sleep_until

template <class Clock, class Duration>
void sleep_until (const chrono::time_point<Clock,Duration>& abs_time);

Sleep until time point

Blocks the calling thread until abs_time.

阻塞当前线程直到abs_time时间点到来。

The execution of the current thread is stopped until at least abs_time, while other threads may continue to advance.
该线程阻塞至少直到时间点abs_time到来。其他线程可能提前。

Parameters

abs_time

A point in time when the calling thread shall resume its execution.
Note that multi-threading management operations may cause certain delays beyond this.

time_point is an object that represents a specific absolute time.

线程应该恢复执行的时间点。

Return value

none

Example

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// this_thread::sleep_for example
#include <iostream>       // std::cout
#include <iomanip>        // std::put_time
#include <thread>         // std::this_thread::sleep_until
#include <chrono>         // std::chrono::system_clock
#include <ctime>          // std::time_t, std::tm, std::localtime, std::mktime

int main() 
{
  using std::chrono::system_clock;
  std::time_t tt = system_clock::to_time_t (system_clock::now());

  struct std::tm * ptm = std::localtime(&tt);
  std::cout << "Current time: " << std::put_time(ptm,"%X") << '\n';

  std::cout << "Waiting for the next minute to begin...\n";
  ++ptm->tm_min; ptm->tm_sec=0;
  std::this_thread::sleep_until (system_clock::from_time_t (mktime(ptm)));

  std::cout << std::put_time(ptm,"%X") << " reached!\n";

  return 0;
}

Edit & Run

Output (after an avg. of 30 seconds):

Current time: 11:52:36
Waiting for the next minute to begin…
11:53:00 reached!

Exception safety

If the type of abs_time never throws exceptions (like if it only uses values from the standard clocks provided in header ), this function never throws exceptions (no-throw guarantee).

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转载请注明出处：http://blog.csdn.net/qq844352155

author:天下无双

Email:coderguang@gmail.com

2014-9-4

于GDUT

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• 本文作者： royalchen
• 本文链接： http://www.royalchen.com/2016/02/24/c11this-threadsleep-until11/
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