mem.h File Reference

#include "common.h"
#include "vmath.h"
#include "rt/defines.h"

Include dependency graph for mem.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	mem_map

Macros
#define	MAP_NULL   ((struct mem_map *) 0)

Functions
size_t	rt_memalloc (struct mem_map **pp, size_t size)
struct mem_map *	rt_memalloc_nosplit (struct mem_map **pp, size_t size)
void	rt_memfree (struct mem_map **pp, size_t size, b_off_t addr)
void	rt_mempurge (struct mem_map **pp)
void	rt_memclose (void)

Macro Definition Documentation

MAP_NULL

#define MAP_NULL   ((struct mem_map *) 0)

Definition at line 42 of file mem.h.

Function Documentation

rt_memalloc()

size_t rt_memalloc	(	struct mem_map **	pp,
		size_t	size
	)

Takes: & pointer of map, size.

Returns: NULL Error address Otherwise

Comments: Algorithm is first fit.

rt_memalloc_nosplit()

struct mem_map * rt_memalloc_nosplit	(	struct mem_map **	pp,
		size_t	size
	)

Takes: & pointer of map, size.

Returns: NULL Error address Otherwise

Comments: Algorithm is BEST fit.

rt_memfree()

void rt_memfree	(	struct mem_map **	pp,
		size_t	size,
		b_off_t	addr
	)

Takes: size, address.

Comments: The routine does not check for wrap around when increasing sizes or changing addresses. Other wrap-around conditions are flagged.

rt_mempurge()

void rt_mempurge

(

struct mem_map **

pp

)

Take everything on the current memory chain, and place it on the freelist.

rt_memclose()

void rt_memclose

(

void

)

Return all the storage used by the rt_mem_freemap.