view src/blocktype.c @ 2500:3d8143fc88e1

[xemacs-hg @ 2005-01-24 23:33:30 by ben] get working with VC7 config.inc.samp: Declare OPTIONAL_LIBRARY_DIR as root of library directories. Redo all graphics library defaults to mirror the versions and directories in the current binary aux distribution on xemacs web site. Enable TIFF and COMPFACE by default since you can now compile with them and binary libs are provided. xemacs.mak: Put our own directories first in case of conflict (e.g. config.h in compface). xemacs.mak: Use MSVCRT to avoid link problems. s/windowsnt.h: bytecode.c, print.c: Add casts to avoid warning. compiler.h: Add MSC_VERSION and include definitions of DOESNT_RETURN and friends here, like for GCC. Need different definitions for VC7 and VC6. s/windowsnt.h: Remove stuff moved to compiler.h. Disable warning 4646 ("function declared with __declspec(noreturn) has non-void return type") on VC7 since lots of Lisp primitives trigger this and there is no easy way to kludge around the warning. glyphs-eimage.c: Some really nasty hacks to allow TIFF and JPEG to both be compiled. #### The better solution is to move the TIFF and JPEG code to different files. glyphs-msw.c: Define __STDC__ to avoid problems with compface.h. intl-auto-encap-win32.c, intl-auto-encap-win32.h, intl-encap-win32.c, syswindows.h: Those wankers at Microsoft cannot leave well enough alone. Various functions change parameter types semi-randomly between VC6 and VC7, so we need to include our own versions that can handle both kinds with appropriate casting. EmacsFrame.c, EmacsShell-sub.c, EmacsShell.c, alloc.c, alloca.c, buffer.c, bytecode.c, charset.h, chartab.c, cm.c, console-stream.c, console.c, data.c, debug.h, device-msw.c, device-tty.c, device-x.c, doprnt.c, dumper.c, dynarr.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, events.c, extents.c, faces.c, file-coding.c, fileio.c, fns.c, font-lock.c, frame-gtk.c, frame-x.c, frame.c, free-hook.c, gccache-gtk.c, glyphs-eimage.c, glyphs-gtk.c, glyphs-msw.c, glyphs-x.c, glyphs.c, gtk-glue.c, gutter.c, input-method-xlib.c, insdel.c, intl-win32.c, keymap.c, lisp.h, lread.c, lstream.c, macros.c, malloc.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, mule-coding.c, native-gtk-toolbar.c, number.c, objects-msw.c, objects.c, print.c, process-nt.c, process-unix.c, process.c, ralloc.c, rangetab.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-tty.c, redisplay-x.c, redisplay.c, regex.c, scrollbar-gtk.c, scrollbar-x.c, search.c, select-x.c, signal.c, specifier.c, specifier.h, strftime.c, sunplay.c, symbols.c, sysdep.c, sysproc.h, text.c, text.h, toolbar-common.c, toolbar-msw.c, toolbar.c, ui-gtk.c, unexnt.c, unicode.c, win32.c, window.c, xgccache.c, s/windowsnt.h: abort() -> ABORT(). Eliminate preprocessor games with abort() since it creates huge problems in VC7, solvable only by including massive amounts of files in every compile (and not worth it).
author ben
date Mon, 24 Jan 2005 23:34:34 +0000
parents fdefd0186b75
children 308d34e9f07d
line wrap: on
line source

/* Fixed-size block allocator.
   Copyright (C) 1994 Free Software Foundation, Inc.

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. */

/* Authorship:

   Ben Wing: December 1994, for 19.12.
 */

/*

------------------------------------------------------------------------------

A "block-type object" is used to efficiently allocate and free blocks
of a particular size.  Freed blocks are remembered in a free list and
are reused as necessary to allocate new blocks, so as to avoid as
much as possible making calls to malloc() and free().

This is a container object.  Declare a block-type object of a specific type
as follows:

struct mytype_blocktype {
  Blocktype_declare (mytype);
};

Use the following functions/macros:

   structype *Blocktype_new(structype)
      [MACRO] Create a new block-type object of the specified type.
      The argument to this call should be the type of object to be
      created, e.g. foobar_blocktype.
   type *Blocktype_alloc(b)
      [MACRO] Allocate a block of the proper type for the specified
      block-type object and return a pointer to it.
   Blocktype_free(b, block)
      Free a block of the type corresponding to the specified block-type
      object.
   Blocktype_delete(b)
      Destroy a block-type object and the memory allocated to it.

*/

/* This file has been Mule-ized. */

#include <config.h>
#include "lisp.h"

#include "blocktype.h"

typedef struct blocktype
{
  Blocktype_declare (void);
} Blocktype;

struct block_internal
{
  void *next;
};

void *
Blocktype_newf (Bytecount elsize)
{
  Blocktype *b = xnew (Blocktype);
  b->elsize = max (elsize, (Bytecount) sizeof (void *));
  b->free = 0;
  return (void *) b;
}

void
Blocktype_allocf (void *bbb)
{
  Blocktype *b = (Blocktype *) bbb;
  if (b->free)
    {
      b->tempel = b->free;
      b->free = ((struct block_internal *) (b->free))->next;
    }
  else
    b->tempel = (void *) xmalloc (b->elsize);
}

void
Blocktype_free (void *bbb, void *el)
{
  Blocktype *b = (Blocktype *) bbb;
  ((struct block_internal *) el)->next = b->free;
  b->free = el;
}