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//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005-2014 Simon Howard
//
// 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.
//
// 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.
//
#ifndef __Z_ZONE__
#define __Z_ZONE__
#include <stdio.h>
//
// ZONE MEMORY
// PU - purge tags.
enum
{
PU_STATIC = 1, // static entire execution time
PU_SOUND, // static while playing
PU_MUSIC, // static while playing
PU_FREE, // a free block
PU_LEVEL, // static until level exited
PU_LEVSPEC, // a special thinker in a level
// Tags >= PU_PURGELEVEL are purgable whenever needed.
PU_PURGELEVEL,
PU_CACHE,
// Total number of different tag types
PU_NUM_TAGS
};
void Z_Init (void);
void* Z_Malloc (int size, int tag, void *ptr);
void Z_Free (void *ptr);
void Z_FreeTags (int lowtag, int hightag);
void Z_DumpHeap (int lowtag, int hightag);
void Z_FileDumpHeap (FILE *f);
void Z_CheckHeap (void);
void Z_ChangeTag2 (void *ptr, int tag, char *file, int line);
void Z_ChangeUser(void *ptr, void **user);
int Z_FreeMemory (void);
unsigned int Z_ZoneSize(void);
//
// This is used to get the local FILE:LINE info from CPP
// prior to really call the function in question.
//
#define Z_ChangeTag(p,t) \
Z_ChangeTag2((p), (t), __FILE__, __LINE__)
#endif
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