/* Copyright (C) 1989, 1995, 1998 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.
 */

/*$Id: gp_dvx.c $ */
/* Desqview/X-specific routines for Ghostscript */
#include "string_.h"
#include "gx.h"
#include "gsexit.h"
#include "gp.h"
#include "time_.h"

/* Do platform-dependent initialization. */
void
gp_init(void)
{
}

/* 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);
}

/* ------ Miscellaneous ------ */

/* Get the string corresponding to an OS error number. */
/* All reasonable compilers support it. */
const char *
gp_strerror(int errnum)
{
    return strerror(errnum);
}

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

/* Read the current time (in seconds since Jan. 1, 1970) */
/* and fraction (in nanoseconds). */
void
gp_get_realtime(long *pdt)
{
    struct timeval tp;
    struct timezone tzp;

    if (gettimeofday(&tp, &tzp) == -1) {
	lprintf("Ghostscript: gettimeofday failed!\n");
	gs_exit(1);
    }
    /* tp.tv_sec is #secs since Jan 1, 1970 */
    pdt[0] = tp.tv_sec;
    pdt[1] = tp.tv_usec * 1000;

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

/* Read the current user CPU time (in seconds) */
/* and fraction (in nanoseconds).  */
void
gp_get_usertime(long *pdt)
{
    gp_get_realtime(pdt);	/* Use an approximation for now.  */
}

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

/* Open a connection to a printer.  A null file name means use the */
/* standard printer connected to the machine, if any. */
/* Return NULL if the connection could not be opened. */
extern void gp_set_file_binary(P2(int, int));
FILE *
gp_open_printer(char fname[gp_file_name_sizeof], int binary_mode)
{
    if (strlen(fname) == 0 || !strcmp(fname, "PRN")) {
	if (binary_mode)
	    gp_set_file_binary(fileno(stdprn), 1);
	stdprn->_flag = _IOWRT;	/* Make stdprn buffered to improve performance */
	return stdprn;
    } else
	return fopen(fname, (binary_mode ? "wb" : "w"));
}

/* Close the connection to the printer. */
void
gp_close_printer(FILE * pfile, const char *fname)
{
    if (pfile == stdprn)
	fflush(pfile);
    else
	fclose(pfile);
}
