| 1 | #include <stdio.h> |
|---|---|
| 2 | #include <stdint.h> |
| 3 | |
| 4 | #include <chrono> |
| 5 | #include <thread> |
| 6 | |
| 7 | |
| 8 | int |
| 9 | wait_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(rtime: wait_time); |
| 20 | if (std::chrono::system_clock::now() > end_time) |
| 21 | break; |
| 22 | } |
| 23 | return num_times; |
| 24 | } |
| 25 | |
| 26 | int |
| 27 | main (int argc, char **argv) |
| 28 | { |
| 29 | printf (format: "stop here in main.\n"); |
| 30 | int num_times = wait_a_while (microseconds: argc * 1000); |
| 31 | printf (format: "Done, took %d times.\n", num_times); |
| 32 | |
| 33 | return 0; |
| 34 | |
| 35 | } |
| 36 |