xref: /plan9/sys/src/cmd/gs/src/gp_os9.c (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)

/* Copyright (C) 1989, 2000-2003 artofcode LLC.  All rights reserved.

  This software is provided AS-IS with no warranty, either express or
  implied.

  This software is distributed under license and may not be copied,
  modified or distributed except as expressly authorized under the terms
  of the license contained in the file LICENSE in this distribution.

  For more information about licensing, please refer to
  http://www.ghostscript.com/licensing/. For information on
  commercial licensing, go to http://www.artifex.com/licensing/ or
  contact Artifex Software, Inc., 101 Lucas Valley Road #110,
  San Rafael, CA  94903, U.S.A., +1(415)492-9861.
*/

/* $Id: gp_os9.c,v 1.12 2004/01/15 09:27:10 giles Exp $ */
/* OSK-specific routines for Ghostscript */

#include "pipe_.h"
#include "string_.h"
#include "time_.h"
#include "gx.h"
#include "gp.h"
#include <signal.h>
#include <stdlib.h>		/* for exit */

int interrupted;

/* Forward declarations */
private void signalhandler(int);
private FILE *rbfopen(char *, char *);

/* Do platform-dependent initialization */
void
gp_init(void)
{
    intercept(signalhandler);
}

/* Do platform-dependent cleanup. */
void
gp_exit(int exit_status, int code)
{
}

/* Exit the program. */
void
gp_do_exit(int exit_status)
{
    exit(exit_status);
}

private void
signalhandler(int sig)
{
    clearerr(stdin);
    switch (sig) {
	case SIGINT:
	case SIGQUIT:
	    interrupted = 1;
	    break;
	case SIGFPE:
	    interrupted = 2;
	    break;
	default:
	    break;
    }
}

/* ------ Date and time ------ */

/* Read the current time (in seconds since Jan. 1, 1980) */
/* and fraction (in nanoseconds). */
#define PS_YEAR_0 80
#define PS_MONTH_0 1
#define PS_DAY_0 1
void
gp_get_realtime(long *pdt)
{
    long date, time, pstime, psdate, tick;
    short day;

    _sysdate(0, &time, &date, &day, &tick);
    _julian(&time, &date);

    pstime = 0;
    psdate = (PS_YEAR_0 << 16) + (PS_MONTH_0 << 8) + PS_DAY_0;
    _julian(&pstime, &psdate);

    pdt[0] = (date - psdate) * 86400 + time;
    pdt[1] = 0;

#ifdef DEBUG_CLOCK
    printf("pdt[0] = %ld  pdt[1] = %ld\n", pdt[0], pdt[1]);
#endif
}

/* Read the current user CPU time (in seconds) */
/* and fraction (in nanoseconds).  */
void
gp_get_usertime(long *pdt)
{
    return gp_get_realtime(pdt);	/* not yet implemented */
}


/* ------ Persistent data cache ------*/

/* insert a buffer under a (type, key) pair */
int gp_cache_insert(int type, byte *key, int keylen, void *buffer, int buflen)
{
    /* not yet implemented */
    return 0;
}

/* look up a (type, key) in the cache */
int gp_cache_query(int type, byte* key, int keylen, void **buffer,
    gp_cache_alloc alloc, void *userdata)
{
    /* not yet implemented */
    return -1;
}

/* ------ Printer accessing ------ */

/* Open a connection to a printer.  A null file name means use the */
/* standard printer connected to the machine, if any. */
/* "|command" opens an output pipe. */
/* Return NULL if the connection could not be opened. */
FILE *
gp_open_printer(char fname[gp_file_name_sizeof], int binary_mode)
{
    return
	(strlen(fname) == 0 ? 0 :
	 fname[0] == '|' ? popen(fname + 1, "w") :
	 rbfopen(fname, "w"));
}

FILE *
rbfopen(char *fname, char *perm)
{
    FILE *file = fopen(fname, perm);

    file->_flag |= _RBF;
    return file;
}

/* Close the connection to the printer. */
void
gp_close_printer(FILE * pfile, const char *fname)
{
    if (fname[0] == '|')
	pclose(pfile);
    else
	fclose(pfile);
}

/* ------ File accessing -------- */

/* Set a file into binary or text mode. */
int
gp_setmode_binary(FILE * pfile, bool binary)
{
    if (binary)
	file->_flag |= _RBF;
    else
	file->_flag &= ~_RBF;
    return 0;
}

/* ------ Font enumeration ------ */

 /* This is used to query the native os for a list of font names and
  * corresponding paths. The general idea is to save the hassle of
  * building a custom fontmap file.
  */

void *gp_enumerate_fonts_init(gs_memory_t *mem)
{
    return NULL;
}

int gp_enumerate_fonts_next(void *enum_state, char **fontname, char **path)
{
    return 0;
}

void gp_enumerate_fonts_free(void *enum_state)
{
}