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/* vi: set sw=4 ts=4: */
/*
* alarm() for uClibc
*
* Copyright (C) 2000-2004 by Erik Andersen <andersen@codepoet.org>
*
* GNU Library General Public License (LGPL) version 2 or later.
*/
#include "syscalls.h"
#include <unistd.h>
#ifdef __NR_alarm
#define __NR___alarm __NR_alarm
_syscall1(unsigned int, alarm, unsigned int, seconds);
#else
#include <sys/time.h>
libc_hidden_proto(setitimer)
unsigned int alarm(unsigned int seconds)
{
struct itimerval old, new;
unsigned int retval;
new.it_value.tv_usec = 0;
new.it_interval.tv_sec = 0;
new.it_interval.tv_usec = 0;
new.it_value.tv_sec = (long int) seconds;
if (setitimer(ITIMER_REAL, &new, &old) < 0) {
return 0;
}
retval = old.it_value.tv_sec;
if (old.it_value.tv_usec) {
++retval;
}
return retval;
}
#endif
libc_hidden_proto(alarm)
libc_hidden_def(alarm)
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