36 lines · cpp
1#include <stdio.h>2#include <stdint.h>3 4#include <chrono>5#include <thread>6 7 8int9wait_a_while (int microseconds)10{11 int num_times = 0;12 auto end_time = std::chrono::system_clock::now() + std::chrono::microseconds(microseconds);13 14 while (1)15 {16 num_times++;17 auto wait_time = end_time - std::chrono::system_clock::now();18 19 std::this_thread::sleep_for(wait_time);20 if (std::chrono::system_clock::now() > end_time)21 break;22 }23 return num_times;24}25 26int27main (int argc, char **argv)28{29 printf ("stop here in main.\n");30 int num_times = wait_a_while (argc * 1000);31 printf ("Done, took %d times.\n", num_times);32 33 return 0;34 35}36