view src/dump-data.c @ 5075:868a9ffcc37b

Normally return a compiled function if one argument, #'constantly. 2010-02-24 Aidan Kehoe <kehoea@parhasard.net> * cl-extra.el (constantly): Normally return a compiled function from #'constantly if we are handed a single argument. Shouldn't actually matter, the overhead for returning a single constant in a lambda form vs. in a compiled function is minuscule, but using compiled functions as much as possible is good style in XEmacs, our interpreter is not stellar (nor indeed should it need to be).
author Aidan Kehoe <kehoea@parhasard.net>
date Wed, 24 Feb 2010 17:17:13 +0000
parents ecf1ebac70d8
children 308d34e9f07d
line wrap: on
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/* Static array to put the dumped data in and its management
   Copyright (C) 2003 Olivier Galibert

This file is part of XEmacs.

XEmacs is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* Mule-ized? Mwahahahahahaha */

/* Magic values by Larry McVoy to prevent every known compiler, including
   an especially perverse HP-UX one, from putting the array in BSS.
*/


#include <config.h>
#include "lisp.h"
#include "dump-data.h"

/* 4 bytes for the data size, 4096 for alignment */

static Rawbyte dumped_data[MAX_SIZE+4096+4] = {
  255,
  6,
  1,
  2,
  3,
  4,
  255,
  3,
  9,
  62,
  255,
  10,
  4,
  61,
  255
};

size_t
dumped_data_size (void)
{
  return dumped_data[0] | (dumped_data[1] << 8) | (dumped_data[2] << 16) |
    (dumped_data[3] << 24);
}

size_t
dumped_data_max_size (void)
{
  return MAX_SIZE;
}

size_t
dumped_data_align_offset (void)
{
  EMACS_INT iptr = (EMACS_INT) dumped_data;
  EMACS_INT iptr2;
  iptr2 = (iptr + 4 + 4095) & ~(EMACS_INT) 4095;
  
  return iptr2 - iptr;
}

Rawbyte *
dumped_data_get (void)
{
  EMACS_INT iptr = (EMACS_INT) dumped_data;
  iptr = (iptr + 4 + 4095) & ~(EMACS_INT) 4095;
  return (Rawbyte *) iptr;
}