// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#ifndef _COMMON_MALLOC_H_
#define _COMMON_MALLOC_H_

#include "../common/cbasetypes.h"

#define ALC_MARK __FILE__, __LINE__, __func__


// default use of the built-in memory manager
#if !defined(NO_MEMMGR) && !defined(USE_MEMMGR)
#if defined(MEMWATCH) || defined(DMALLOC) || defined(GCOLLECT)
// disable built-in memory manager when using another memory library
#define NO_MEMMGR
#else
// use built-in memory manager by default
#define USE_MEMMGR
#endif
#endif


//////////////////////////////////////////////////////////////////////
// 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)    (iMalloc->malloc((n),ALC_MARK))
#	define aCalloc(m,n)  (iMalloc->calloc((m),(n),ALC_MARK))
#	define aRealloc(p,n) (iMalloc->realloc((p),(n),ALC_MARK))
#	define aReallocz(p,n) (iMalloc->reallocz((p),(n),ALC_MARK))
#	define aStrdup(p)    (iMalloc->astrdup((p),ALC_MARK))
#	define aFree(p)      (iMalloc->free((p),ALC_MARK))

/////////////// 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 RECREATE(result, type, number) ((result) = (type *) aReallocz((result), sizeof(type) * (number)))

////////////////////////////////////////////////

//void malloc_memory_check(void);
//bool malloc_verify_ptr(void* ptr);
//size_t malloc_usage (void);
//void malloc_init (void);
//void malloc_final (void);

void malloc_defaults(void);

struct malloc_interface {
	void	(*init) (void);
	void	(*final) (void);
	/* */
	void* (*malloc	)(size_t size, const char *file, int line, const char *func);
	void* (*calloc	)(size_t num, size_t size, const char *file, int line, const char *func);
	void* (*realloc	)(void *p, size_t size, const char *file, int line, const char *func);
	void* (*reallocz)(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  (*free	)(void *p, const char *file, int line, const char *func);
	/* */
	void	(*memory_check)(void);
	bool	(*verify_ptr)(void* ptr);
	size_t	(*usage) (void);
	/* */
	void (*post_shutdown) (void);
};

void memmgr_report (int extra);

struct malloc_interface *iMalloc;
#endif /* _COMMON_MALLOC_H_ */