1570af302Sopenharmony_ci#define _GNU_SOURCE 2570af302Sopenharmony_ci#include <unistd.h> 3570af302Sopenharmony_ci#include <sys/time.h> 4570af302Sopenharmony_ci 5570af302Sopenharmony_ciunsigned ualarm(unsigned value, unsigned interval) 6570af302Sopenharmony_ci{ 7570af302Sopenharmony_ci struct itimerval it = { 8570af302Sopenharmony_ci .it_interval.tv_usec = interval, 9570af302Sopenharmony_ci .it_value.tv_usec = value 10570af302Sopenharmony_ci }, it_old; 11570af302Sopenharmony_ci setitimer(ITIMER_REAL, &it, &it_old); 12570af302Sopenharmony_ci return it_old.it_value.tv_sec*1000000 + it_old.it_value.tv_usec; 13570af302Sopenharmony_ci} 14