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UbixOS / Dump / hybos / include / _malloc.h
@cwolsen cwolsen on 31 Oct 2018 740 bytes Big Dump
#ifndef __TL__MALLOC_H
#define	__TL__MALLOC_H

#ifdef __cplusplus
extern "C"
{
#endif

/* 500K */
#define	HEAP_SIZE	500000uL

#include <_size_t.h>
/*#include <_null.h>*/

#define	MALLOC_MAGIC	0x6D92	/* must be < 0x8000 */

typedef struct _malloc		/* Turbo C	DJGPP */
{
	size_t size;		/* 2 bytes	 4 bytes */
	struct _malloc *next;	/* 2 bytes	 4 bytes */
	unsigned magic : 15;	/* 2 bytes total 4 bytes total */
	unsigned used : 1;
} malloc_t;		/* total   6 bytes	12 bytes */

extern malloc_t *_heap_bot, *_heap_top;

static void dump_heap(void);
static void *kbrk(int *delta);
void *kmalloc(size_t size);
void kfree(void *blk);
void *krealloc(void *blk, size_t size);

#ifdef __cplusplus
}
#endif

#endif