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

   1 /* -*-c-*-
   2  *
   3  * $Id: arena.c,v 1.1 2000/06/17 10:40:10 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 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: arena.c,v $
  33  * Revision 1.1  2000/06/17 10:40:10  mdw
  34  * Support for secure memory arenas.
  35  *
  36  */
  37
  38 /*----- Header files ------------------------------------------------------*/
  39
  40 #include <mLib/arena.h>
  41 #include <mLib/sub.h>
  42
  43 #include "arena.h"
  44
  45 /*----- Global variables --------------------------------------------------*/
  46
  47 arena *arena_secure = &arena_stdlib;
  48 subarena *arena_subsecure = &sub_global;
  49
  50 /*----- Static variables --------------------------------------------------*/
  51
  52 static subarena sub;
  53
  54 /*----- Main code ---------------------------------------------------------*/
  55
  56 /* --- @arena_setsecure@ --- *
  57  *
  58  * Arguments:   @arena *a@ = arena to use for secure allocation
  59  *
  60  * Returns:     ---
  61  *
  62  * Use:         Call at the beginning of the program to set the arena for
  63  *              secure allocations.
  64  */
  65
  66 void arena_setsecure(arena *a)
  67 {
  68   arena_secure = a;
  69   subarena_create(&sub, a);
  70   arena_subsecure = &sub;
  71 }
  72
  73 /*----- That's all, folks -------------------------------------------------*/