git.distorted.org.uk Git - u/mdw/catacomb/blob - arena.c

   1 /* -*-c-*-
   2  *
   3  * $Id: arena.c,v 1.2 2004/04/08 01:36:15 mdw Exp $
   4  *
   5  * Abstraction for memory allocation arenas
   6  *
   7  * (c) 2000 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Header files ------------------------------------------------------*/
  31
  32 #include <mLib/arena.h>
  33 #include <mLib/sub.h>
  34
  35 #include "arena.h"
  36
  37 /*----- Global variables --------------------------------------------------*/
  38
  39 arena *arena_secure = &arena_stdlib;
  40 subarena *arena_subsecure = &sub_global;
  41
  42 /*----- Static variables --------------------------------------------------*/
  43
  44 static subarena sub;
  45
  46 /*----- Main code ---------------------------------------------------------*/
  47
  48 /* --- @arena_setsecure@ --- *
  49  *
  50  * Arguments:   @arena *a@ = arena to use for secure allocation
  51  *
  52  * Returns:     ---
  53  *
  54  * Use:         Call at the beginning of the program to set the arena for
  55  *              secure allocations.
  56  */
  57
  58 void arena_setsecure(arena *a)
  59 {
  60   arena_secure = a;
  61   subarena_create(&sub, a);
  62   arena_subsecure = &sub;
  63 }
  64
  65 /*----- That's all, folks -------------------------------------------------*/