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- /* Copyright (C) 1992 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: gp_sysv.c,v 1.2 2000/09/19 19:00:25 lpd Exp $ */
- /* System V Unix-specific routines for Ghostscript */
-
- /* This file contains a couple of standard Unix library procedures */
- /* that a few System V platforms don't provide. */
- /* Note that this file is NOT used for SVR4 platforms. */
- #include <errno.h>
- #include "stdio_.h"
- #include "time_.h"
- #include <sys/types.h>
- #include <sys/times.h>
- #include <sys/stat.h>
- #include <sys/param.h>
-
- /* rename */
- int
- rename(const char *a, const char *b)
- {
- if (access(a, 0) == -1)
- return (-1);
- unlink(b);
- if (link(a, b) == -1)
- return (-1);
- if (unlink(a) == -1) {
- unlink(b); /* ??? */
- return (-1);
- }
- return (0);
- }
-
- /* gettimeofday */
- #ifndef HZ
- # define HZ 100 /* see sys/param.h */
- #endif
- int
- gettimeofday(struct timeval *tvp, struct timezone *tzp)
- {
- struct tms tms;
- static long offset = 0;
- long ticks;
-
- if (!offset) {
- time(&offset);
- offset -= (times(&tms) / HZ);
- }
- ticks = times(&tms);
- tvp->tv_sec = ticks / HZ + offset;
- tvp->tv_usec = (ticks % HZ) * (1000 * 1000 / HZ);
- return 0;
- }
-