| 1 | #define _GNU_SOURCE |
| 2 | #include <unistd.h> |
| 3 | #include <sys/time.h> |
| 4 | |
| 5 | unsigned ualarm(unsigned value, unsigned interval) |
| 6 | { |
| 7 | struct itimerval it = { |
| 8 | .it_interval.tv_usec = interval, |
| 9 | .it_value.tv_usec = value |
| 10 | }, it_old; |
| 11 | setitimer(ITIMER_REAL, &it, &it_old); |
| 12 | return it_old.it_value.tv_sec*1000000 + it_old.it_value.tv_usec; |
| 13 | } |