home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1992 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin 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 Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin 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 Aladdin 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.
- */
-
- /* gp_sysv.c */
- /* 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;
- }
-