详解C++11 线程休眠函数

sleep(2*1000); //sleep for 2 seconds

sleep(2);  //sleep for 2 seconds

std::this_thread::sleep_for

std::this_thread::sleep_untill

template< class Rep, class Period >
void sleep_for( const std::chrono::duration<Rep, Period>& sleep_duration );

std::chrono::nanoseconds
std::chrono::microseconds
std::chrono::milliseconds
std::chrono::seconds
std::chrono::minutes
std::chrono::hours

std::this_thread::sleep_for(std::chrono::milliseconds(100));

std::this_thread::sleep_for(std::chrono::minutes(1));

#include <iostream>
#include <chrono>
#include <thread>
 
int main() {
  std::cout << "Hello waiter\n" << std::flush;

  auto start = std::chrono::high_resolution_clock::now();

  std::this_thread::sleep_for(std::chrono::milliseconds(2000));
  
  auto end = std::chrono::high_resolution_clock::now();
  
  std::chrono::duration<double, std::milli> elapsed = end-start;
  std::cout << "Waited " << elapsed.count() << " ms\n";
}

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

#include <iostream>
#include <thread>
#include <chrono>

// Print Current Time
void print_time_point(std::chrono::system_clock::time_point timePoint) {
  std::time_t timeStamp = std::chrono::system_clock::to_time_t(timePoint);
  std::cout << std::ctime(&timeStamp) << std::endl;
}

void threadFunc() {
  std::cout<<"Current Time :: ";
  // Print Current Time
  print_time_point(std::chrono::system_clock::now());
  // create a time point pointing to 10 second in future
  std::chrono::system_clock::time_point timePoint =
      std::chrono::system_clock::now() + std::chrono::seconds(10);
  std::cout << "Going to Sleep Until :: "; print_time_point(timePoint);
  // Sleep Till specified time point
  // Accepts std::chrono::system_clock::time_point as argument
  std::this_thread::sleep_until(timePoint);
  std::cout<<"Current Time :: ";
  // Print Current Time
  print_time_point(std::chrono::system_clock::now());
}

int main() {
  std::thread th(&threadFunc);
  th.join();

  return 0;
}