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

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