ack/mach/sun2/libsys/_alarm.c
1990-01-22 11:56:01 +00:00

14 lines
200 B
C

unsigned
_alarm(n)
unsigned n;
{
struct { long l1,l2,l3,l4; } t1,t2;
t1.l1 = 0;
t1.l2 = 0;
t1.l4 = 0;
t1.l3 = n;
if (_setitimer(0,&t1,&t2) < 0) return -1;
if (t2.l4) t2.l3++;
return t2.l3;
}