int main(void)
{
printf("before\n");
sleep1(5);
printf("after\n");
return 0;
}
int main(int argc, char *argv[])
{
printf("start...\n");
sleep1(5);
printf("end...\n");
return 0;
}
int main(int argc, char const *argv[])
{
unsigned int unslep;
if (signal(SIGINT,sig_int)==SIG_ERR)
{
/* code */printf("err sig int\n");
}
unslep = sleep1(5);
printf("sleep1 return %u\n",unslep );
return 0;
}
int test_sleep1()
{
int ret;
time_t beg, end;
signal(SIGINT, sleep1_sig_interrupt);
beg = time(NULL);
ret = sleep1(8);
printf("sleep left time is %d\n", ret);
end = time(NULL);
printf("duration %d\n", end - beg);
return 0;
}
int main(void){
alarm(5);
printf("main sleep1 before\n");
sleep1(3);
printf("main sleep1 after\n");
}