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/* Copyright (C) 1992 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gp_sysv.c,v 1.4 2002/02/21 22:24:52 giles Exp $ */
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/* System V Unix-specific routines for Ghostscript */
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/* This file contains a couple of standard Unix library procedures */
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/* that a few System V platforms don't provide. */
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/* Note that this file is NOT used for SVR4 platforms. */
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#include <errno.h>
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#include "stdio_.h"
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#include "time_.h"
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#include <sys/types.h>
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#include <sys/times.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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/* rename */
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int
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rename(const char *a, const char *b)
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{
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if (access(a, 0) == -1)
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return (-1);
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unlink(b);
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if (link(a, b) == -1)
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return (-1);
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if (unlink(a) == -1) {
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unlink(b); /* ??? */
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return (-1);
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}
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return (0);
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}
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/* gettimeofday */
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#ifndef HZ
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# define HZ 100 /* see sys/param.h */
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#endif
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int
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gettimeofday(struct timeval *tvp, struct timezone *tzp)
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{
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struct tms tms;
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static long offset = 0;
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long ticks;
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if (!offset) {
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time(&offset);
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offset -= (times(&tms) / HZ);
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}
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ticks = times(&tms);
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tvp->tv_sec = ticks / HZ + offset;
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tvp->tv_usec = (ticks % HZ) * (1000 * 1000 / HZ);
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return 0;
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}
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