// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder
#ifndef _MALLOC_H_
#define _MALLOC_H_
#include "../common/cbasetypes.h"
// Q: What are the 'a'-variant allocation functions?
// A: They allocate memory from the stack, which is automatically
// freed when the invoking function returns.
// But it's not portable (http://c-faq.com/malloc/alloca.html)
// and I have doubts our implementation works.
// -> They should NOT be used, period.
#define ALC_MARK __FILE__, __LINE__, __func__
// default memory manager
#if !defined(NO_MEMMGR) && !defined(USE_MEMMGR)
#if defined(MEMWATCH) || defined(DMALLOC) || defined(GCOLLECT)
// disable built-in memory manager when using another manager
#define NO_MEMMGR
#else
// use built-in memory manager by default
#define USE_MEMMGR
#endif
#endif
//////////////////////////////////////////////////////////////////////
// Athena's built-in Memory Manager
#ifdef USE_MEMMGR
// Enable memory manager logging by default
#define LOG_MEMMGR
// no logging for minicore
#if defined(MINICORE) && defined(LOG_MEMMGR)
#undef LOG_MEMMGR
#endif
# define aMalloc(n) _mmalloc(n,ALC_MARK)
# define aMallocA(n) _mmalloc(n,ALC_MARK)
# define aCalloc(m,n) _mcalloc(m,n,ALC_MARK)
# define aCallocA(m,n) _mcalloc(m,n,ALC_MARK)
# define aRealloc(p,n) _mrealloc(p,n,ALC_MARK)
# define aStrdup(p) _mstrdup(p,ALC_MARK)
# define aFree(p) _mfree(p,ALC_MARK)
void* _mmalloc (size_t size, const char *file, int line, const char *func);
void* _mcalloc (size_t num, size_t size, const char *file, int line, const char *func);
void* _mrealloc (void *p, size_t size, const char *file, int line, const char *func);
char* _mstrdup (const char *p, const char *file, int line, const char *func);
void _mfree (void *p, const char *file, int line, const char *func);
#else
# define aMalloc(n) aMalloc_((n),ALC_MARK)
# define aMallocA(n) aMallocA_((n),ALC_MARK)
# define aCalloc(m,n) aCalloc_((m),(n),ALC_MARK)
# define aCallocA(m,n) aCallocA_(m,n,ALC_MARK)
# define aRealloc(p,n) aRealloc_(p,n,ALC_MARK)
# define aStrdup(p) aStrdup_(p,ALC_MARK)
# define aFree(p) aFree_(p,ALC_MARK)
void* aMalloc_ (size_t size, const char *file, int line, const char *func);
void* aMallocA_ (size_t size, const char *file, int line, const char *func);
void* aCalloc_ (size_t num, size_t size, const char *file, int line, const char *func);
void* aCallocA_ (size_t num, size_t size, const char *file, int line, const char *func);
void* aRealloc_ (void *p, size_t size, const char *file, int line, const char *func);
char* aStrdup_ (const char *p, const char *file, int line, const char *func);
void aFree_ (void *p, const char *file, int line, const char *func);
#endif
/////////////// Buffer Creation /////////////////
// Full credit for this goes to Shinomori [Ajarn]
#ifdef __GNUC__ // GCC has variable length arrays
#define CREATE_BUFFER(name, type, size) type name[size]
#define DELETE_BUFFER(name)
#else // others don't, so we emulate them
#define CREATE_BUFFER(name, type, size) type *name = (type *) aCalloc (size, sizeof(type))
#define DELETE_BUFFER(name) aFree(name)
#endif
////////////// Others //////////////////////////
// should be merged with any of above later
#define CREATE(result, type, number) (result) = (type *) aCalloc ((number), sizeof(type))
#define CREATE_A(result, type, number) (result) = (type *) aCallocA ((number), sizeof(type))
#define RECREATE(result, type, number) (result) = (type *) aRealloc ((result), sizeof(type) * (number))
////////////////////////////////////////////////
bool malloc_verify_ptr(void* ptr);
size_t malloc_usage (void);
void malloc_init (void);
void malloc_final (void);
#endif /* _MALLOC_H_ */