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kmalloc.h

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/*!     \file include/kernel/kmalloc.h
 *      \brief Headers for the kernel memory allocators.
 *      \author Andrea Righi <drizzt@inwind.it>
 *      \date 2003-10-24
 *      \note Copyright (C) 2003 Andrea Righi
 */

#ifndef KMALLOC_H
#define KMALLOC_H

// Constants                                                            //

/** \ingroup Memory
 *  \defgroup KMemoryAlloc Kernel Memory Allocator
 *  The memory operators for the kernel.
 *  @{
 */

//! Magic number to identify a memory block.
#define M_MAGIC         ((dword)"$MB$")
//! Free block.
#define M_FREE          0
//! Allocated block.
#define M_ALLOC         1

//! A memory block structure.
typedef struct MEM_BLOCK
{
        dword   magic,
                flags,
                size,
                owner;
} mem_block_t;

void kmalloc_init();
void *kmalloc(dword size);
void kfree(void *ptr);
int mem_sizeof(void *ptr);

void *kmemalign(size_t alignment, size_t size);

/** @} */ // end of KMemoryAlloc

/** \ingroup Memory
 *  \defgroup DebugMemoryAlloc Debug Routines for Memory Allocator
 *  Functions to debug the kernel memory area allocator.
 *  @{
 */
void dump_memory_map();
/** @} */ // end of DebugMemoryAlloc

#endif

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