1 files changed, 129 insertions, 0 deletions

diff --git a/src/z_zone.h b/src/z_zone.h
new file mode 100644
index 0000000..f70ce08
--- /dev/null
+++ b/src/z_zone.h
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+/* Emacs style mode select   -*- C++ -*-
+ *-----------------------------------------------------------------------------
+ *
+ *
+ *  PrBoom: a Doom port merged with LxDoom and LSDLDoom
+ *  based on BOOM, a modified and improved DOOM engine
+ *  Copyright (C) 1999 by
+ *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
+ *  Copyright (C) 1999-2000 by
+ *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
+ *  Copyright 2005, 2006 by
+ *  Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
+ *
+ *  This program 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
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ *  02111-1307, USA.
+ *
+ * DESCRIPTION:
+ *      Zone Memory Allocation, perhaps NeXT ObjectiveC inspired.
+ *      Remark: this was the only stuff that, according
+ *       to John Carmack, might have been useful for
+ *       Quake.
+ *
+ * Rewritten by Lee Killough, though, since it was not efficient enough.
+ *
+ *---------------------------------------------------------------------*/
+
+#ifndef __Z_ZONE__
+#define __Z_ZONE__
+
+#ifndef __GNUC__
+#define __attribute__(x)
+#endif
+
+// Include system definitions so that prototypes become
+// active before macro replacements below are in effect.
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+// ZONE MEMORY
+// PU - purge tags.
+
+enum {PU_FREE, PU_STATIC, PU_SOUND, PU_MUSIC, PU_LEVEL, PU_LEVSPEC, PU_CACHE,
+      /* Must always be last -- killough */ PU_MAX};
+
+#define PU_PURGELEVEL PU_CACHE        /* First purgable tag's level */
+
+#ifdef INSTRUMENTED
+#define DA(x,y) ,x,y
+#define DAC(x,y) x,y
+#else
+#define DA(x,y) 
+#define DAC(x,y)
+#endif
+
+void *(Z_Malloc)(size_t size, int tag, void **ptr DA(const char *, int));
+void (Z_Free)(void *ptr DA(const char *, int));
+void (Z_FreeTags)(int lowtag, int hightag DA(const char *, int));
+void (Z_ChangeTag)(void *ptr, int tag DA(const char *, int));
+void (Z_Init)(void);
+void Z_Close(void);
+void *(Z_Calloc)(size_t n, size_t n2, int tag, void **user DA(const char *, int));
+void *(Z_Realloc)(void *p, size_t n, int tag, void **user DA(const char *, int));
+char *(Z_Strdup)(const char *s, int tag, void **user DA(const char *, int));
+void (Z_CheckHeap)(DAC(const char *,int));   // killough 3/22/98: add file/line info
+void Z_DumpHistory(char *);
+
+#ifdef INSTRUMENTED
+/* cph - save space if not debugging, don't require file 
+ * and line to memory calls */
+#define Z_Free(a)          (Z_Free)     (a,      __FILE__,__LINE__)
+#define Z_FreeTags(a,b)    (Z_FreeTags) (a,b,    __FILE__,__LINE__)
+#define Z_ChangeTag(a,b)   (Z_ChangeTag)(a,b,    __FILE__,__LINE__)
+#define Z_Malloc(a,b,c)    (Z_Malloc)   (a,b,c,  __FILE__,__LINE__)
+#define Z_Strdup(a,b,c)    (Z_Strdup)   (a,b,c,  __FILE__,__LINE__)
+#define Z_Calloc(a,b,c,d)  (Z_Calloc)   (a,b,c,d,__FILE__,__LINE__)
+#define Z_Realloc(a,b,c,d) (Z_Realloc)  (a,b,c,d,__FILE__,__LINE__)
+#define Z_CheckHeap()      (Z_CheckHeap)(__FILE__,__LINE__)
+#endif
+
+/* cphipps 2001/11/18 -
+ * If we're using memory mapped file access to WADs, we won't need to maintain
+ * our own heap. So we *could* let "normal" malloc users use the libc malloc
+ * directly, for efficiency. Except we do need a wrapper to handle out of memory
+ * errors... damn, ok, we'll leave it for now.
+ */
+#ifndef HAVE_LIBDMALLOC
+// Remove all definitions before including system definitions
+
+#undef malloc
+#undef free
+#undef realloc
+#undef calloc
+#undef strdup
+
+#define malloc(n)          Z_Malloc(n,PU_STATIC,0)
+#define free(p)            Z_Free(p)
+#define realloc(p,n)       Z_Realloc(p,n,PU_STATIC,0)
+#define calloc(n1,n2)      Z_Calloc(n1,n2,PU_STATIC,0)
+#define strdup(s)          Z_Strdup(s,PU_STATIC,0)
+
+#else
+
+#ifdef HAVE_LIBDMALLOC
+#include <dmalloc.h>
+#endif
+
+#endif
+
+void Z_ZoneHistory(char *);
+
+#endif