apps/plugins/doom/z_bmalloc.h

   1 /* Emacs style mode select   -*- C++ -*-
   2  *-----------------------------------------------------------------------------
   3  *
   4  *
   5  *  PrBoom a Doom port merged with LxDoom and LSDLDoom
   6  *  based on BOOM, a modified and improved DOOM engine
   7  *  Copyright (C) 1999 by
   8  *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
   9  *  Copyright (C) 1999-2000 by
  10  *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
  11  *
  12  *  This program is free software; you can redistribute it and/or
  13  *  modify it under the terms of the GNU General Public License
  14  *  as published by the Free Software Foundation; either version 2
  15  *  of the License, or (at your option) any later version.
  16  *
  17  *  This program 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 General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software
  24  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  25  *  02111-1307, USA.
  26  *
  27  * DESCRIPTION:
  28  *  Block memory allocator
  29  *  This is designed to be a fast allocator for small, regularly used block sizes
  30  *-----------------------------------------------------------------------------*/
  31 #include "rockmacros.h"
  32
  33 struct block_memory_alloc_s {
  34    void  *firstpool;
  35    size_t size;
  36    size_t perpool;
  37    int    tag;
  38    const char *desc;
  39 };
  40
  41 #define DECLARE_BLOCK_MEMORY_ALLOC_ZONE(name) extern struct block_memory_alloc_s name
  42 #define IMPLEMENT_BLOCK_MEMORY_ALLOC_ZONE(name, size, tag, num, desc) \
  43 struct block_memory_alloc_s name = { NULL, size, num, tag, desc}
  44 #define NULL_BLOCK_MEMORY_ALLOC_ZONE(name) name.firstpool = NULL
  45
  46 void* Z_BMalloc(struct block_memory_alloc_s *pzone);
  47
  48 inline static void* Z_BCalloc(struct block_memory_alloc_s *pzone)
  49 { void *p = Z_BMalloc(pzone); memset(p,0,pzone->size); return p; }
  50
  51 void Z_BFree(struct block_memory_alloc_s *pzone, void* p);