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umalloc.h

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/*!     \file include/kernel/umalloc.h
 *      \brief Header of Virtual Memory Allocator for the User Space.
 *      \author Andrea Righi <drizzt@inwind.it>
 *      \date Last update: 2004-01-01
 *      \note Copyright (&copy;) 2003 Andrea Righi
 */

#ifndef UMALLOC_H
#define UMALLOC_H

//! Magic number to identify a memory block.
#define UM_MAGIC        ((uint32_t)"$UM$")
//! Free block.
#define UM_FREE         0
//! Allocated block.
#define UM_ALLOC        1

//! A memory block structure.
typedef struct UMEM_BLOCK
{
        uint32_t        magic,
                        flags,
                        size,
                        owner;
} umem_block_t;

// --- Prototypes ----------------------------------------------------- //

void umalloc_init(size_t heap_start, size_t heap_size);
void *umalloc(size_t size);
void ufree(void *ptr);

#endif

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