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/*
Copyright (C) 1996-1997 Id Software, Inc.
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.
*/
#ifndef ZONE_H
#define ZONE_H
extern qboolean mem_bigendian;
// div0: heap overflow detection paranoia
#define MEMPARANOIA 0
#define POOLNAMESIZE 128
// if set this pool will be printed in memlist reports
#define POOLFLAG_TEMP 1
typedef struct memheader_s
{
// address returned by Chunk_Alloc (may be significantly before this header to satisify alignment)
void *baseaddress;
// next and previous memheaders in chain belonging to pool
struct memheader_s *next;
struct memheader_s *prev;
// pool this memheader belongs to
struct mempool_s *pool;
// size of the memory after the header (excluding header and sentinel2)
size_t size;
// file name and line where Mem_Alloc was called
const char *filename;
int fileline;
// should always be equal to MEMHEADER_SENTINEL_FOR_ADDRESS()
unsigned int sentinel;
// immediately followed by data, which is followed by another copy of mem_sentinel[]
}
memheader_t;
typedef struct mempool_s
{
// should always be MEMPOOL_SENTINEL
unsigned int sentinel1;
// chain of individual memory allocations
struct memheader_s *chain;
// POOLFLAG_*
int flags;
// total memory allocated in this pool (inside memheaders)
size_t totalsize;
// total memory allocated in this pool (actual malloc total)
size_t realsize;
// updated each time the pool is displayed by memlist, shows change from previous time (unless pool was freed)
size_t lastchecksize;
// linked into global mempool list
struct mempool_s *next;
// parent object (used for nested memory pools)
struct mempool_s *parent;
// file name and line where Mem_AllocPool was called
const char *filename;
int fileline;
// name of the pool
char name[POOLNAMESIZE];
// should always be MEMPOOL_SENTINEL
unsigned int sentinel2;
}
mempool_t;
#define Mem_Alloc(pool,size) _Mem_Alloc(pool, NULL, size, 16, __FILE__, __LINE__)
#define Mem_Memalign(pool,alignment,size) _Mem_Alloc(pool, NULL, size, alignment, __FILE__, __LINE__)
#define Mem_Realloc(pool,data,size) _Mem_Alloc(pool, data, size, 16, __FILE__, __LINE__)
#define Mem_Free(mem) _Mem_Free(mem, __FILE__, __LINE__)
#define Mem_CheckSentinels(data) _Mem_CheckSentinels(data, __FILE__, __LINE__)
#define Mem_CheckSentinelsGlobal() _Mem_CheckSentinelsGlobal(__FILE__, __LINE__)
#define Mem_AllocPool(name, flags, parent) _Mem_AllocPool(name, flags, parent, __FILE__, __LINE__)
#define Mem_FreePool(pool) _Mem_FreePool(pool, __FILE__, __LINE__)
#define Mem_EmptyPool(pool) _Mem_EmptyPool(pool, __FILE__, __LINE__)
void *_Mem_Alloc(mempool_t *pool, void *data, size_t size, size_t alignment, const char *filename, int fileline);
void _Mem_Free(void *data, const char *filename, int fileline);
mempool_t *_Mem_AllocPool(const char *name, int flags, mempool_t *parent, const char *filename, int fileline);
void _Mem_FreePool(mempool_t **pool, const char *filename, int fileline);
void _Mem_EmptyPool(mempool_t *pool, const char *filename, int fileline);
void _Mem_CheckSentinels(void *data, const char *filename, int fileline);
void _Mem_CheckSentinelsGlobal(const char *filename, int fileline);
// if pool is NULL this searches ALL pools for the allocation
qboolean Mem_IsAllocated(mempool_t *pool, void *data);
char* Mem_strdup (mempool_t *pool, const char* s);
typedef struct memexpandablearray_array_s
{
unsigned char *data;
unsigned char *allocflags;
size_t numflaggedrecords;
}
memexpandablearray_array_t;
typedef struct memexpandablearray_s
{
mempool_t *mempool;
size_t recordsize;
size_t numrecordsperarray;
size_t numarrays;
size_t maxarrays;
memexpandablearray_array_t *arrays;
}
memexpandablearray_t;
void Mem_ExpandableArray_NewArray(memexpandablearray_t *l, mempool_t *mempool, size_t recordsize, int numrecordsperarray);
void Mem_ExpandableArray_FreeArray(memexpandablearray_t *l);
void *Mem_ExpandableArray_AllocRecord(memexpandablearray_t *l);
void Mem_ExpandableArray_FreeRecord(memexpandablearray_t *l, void *record);
size_t Mem_ExpandableArray_IndexRange(const memexpandablearray_t *l) DP_FUNC_PURE;
void *Mem_ExpandableArray_RecordAtIndex(const memexpandablearray_t *l, size_t index) DP_FUNC_PURE;
// used for temporary allocations
extern mempool_t *tempmempool;
void Memory_Init (void);
void Memory_Shutdown (void);
void Memory_Init_Commands (void);
extern mempool_t *zonemempool;
#define Z_Malloc(size) Mem_Alloc(zonemempool,size)
#define Z_Free(data) Mem_Free(data)
extern struct cvar_s developer_memory;
extern struct cvar_s developer_memorydebug;
extern struct cvar_s developer_memoryreportlargerthanmb;
#endif
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