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/usr/src/redhat/BUILD/legOS/include/sys/mm.h File Reference

memory management interna. More...

Defines
		#define	MM_FREE
			marker: block free.
		#define	MM_RESERVED
			marker: block reserved.
		#define	MM_HEADER_SIZE
			2 words header: pid, size.
		#define	MM_SPLIT_THRESH
			split off if 8+ data bytes.
		#define	MM_BLOCK_FREE (addr)
			memory from addr on can be allocated. More...
		#define	MM_BLOCK_RESERVED (addr)
			memory from addr on is reserved. More...
Functions
		void	mm_init ()
			initialize memory management.
		void	mm_reaper ()
			free all blocks allocated by the current process. More...
Variables
		size_t	mm_start
			end of kernel code + data.
		size_t*	mm_first_free
			ptr to first free block.

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Detailed Description

memory management interna.

Author(s):

Markus L. Noga <markus@noga.de>

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Define Documentation

#define MM_FREE ()

marker: block free.

#define MM_RESERVED ()

marker: block reserved.

#define MM_HEADER_SIZE ()

2 words header: pid, size.

#define MM_SPLIT_THRESH ()

split off if 8+ data bytes.

#define MM_BLOCK_FREE (addr)

memory from addr on can be allocated.

Macro for mm_init(). Always alternate MM_BLOCK_FREE and MM_BLOCK_RESERVED.

#define MM_BLOCK_RESERVED (addr)

memory from addr on is reserved.

Macro for mm_init(). Always alternate MM_BLOCK_FREE and MM_BLOCK_RESERVED.

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Function Documentation

void mm_init ()

initialize memory management.

void mm_reaper ()

free all blocks allocated by the current process.

called by exit() and kmain().

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Variable Documentation

size_t mm_start

end of kernel code + data.

size_t* mm_first_free

ptr to first free block.

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-0.1.7 is released under Mozilla Public License. Original code © 1998-1999 by Markus L. Noga.