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/*
* clock_getres() for uClibc
*
* Copyright (C) 2005 by Peter Kjellerstedt <pkj@axis.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
* for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define _GNU_SOURCE
#include "syscalls.h"
#include <time.h>
#include <unistd.h>
#ifdef __NR_clock_getres
_syscall2(int, clock_getres, clockid_t, clock_id, struct timespec*, res);
#else
int clock_getres(clockid_t clock_id, struct timespec* res)
{
long clk_tck;
int retval = -1;
switch (clock_id) {
case CLOCK_REALTIME:
if ((clk_tck = sysconf(_SC_CLK_TCK)) < 0)
clk_tck = 100;
res->tv_sec = 0;
res->tv_nsec = 1000000000 / clk_tck;
retval = 0;
break;
default:
errno = EINVAL;
break;
}
return retval;
}
#endif
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