home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1992 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must 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. */
- #include <errno.h>
- #include "time_.h"
- #include <sys/types.h>
- #include <sys/times.h>
- #include <sys/stat.h>
- #include <sys/param.h>
-
- extern long timezone; /* doesn't seem to be declared anywhere */
-
- /* rename */
- int
- rename(char *a, 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);
- /* call localtime to set the timezone variable */
- localtime(&offset);
- offset -= (times(&tms) / HZ);
- }
- ticks = times(&tms);
- tvp->tv_sec = ticks/HZ + offset;
- tvp->tv_usec = (ticks % HZ) * (1000*1000/HZ);
- tzp->tz_minuteswest = timezone/60;
- }
-