stbheap.c File Reference

Heap memory management routines. More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include <techtype.h>
#include <dbgfuncs.h>
#include "stbheap.h"
#include "stbhwmem.h"

Classes
struct	s_stat_mem
struct	s_cache_registration

Macros
#define	_STBHEAP_C
#define	STB_HEAP_PRINT(x)

Typedefs
typedef struct s_stat_mem	S_STAT_MEM
typedef struct s_cache_registration	S_CACHE_REGISTRATION

Functions
void	STB_HeapInitialise (void)
void *	STB_GetMemory (U32BIT bytes)
	Attempts to allocate memory from the heap. More...
void	STB_FreeMemory (void *addr)
	Releases previously allocated heap memory. More...
void *	STB_ResizeMemory (void *ptr, U32BIT new_num_bytes)
	Re-allocates a given memory area to the new size, ensuring data contained within the original memory block is maintained. More...
void *	STB_AppGetMemory (U32BIT bytes)
	Attempts to allocate memory from the application heap. More...
void	STB_AppFreeMemory (void *addr)
	Releases previously allocated application heap memory. More...
void *	STB_AppResizeMemory (void *ptr, U32BIT new_num_bytes)
	Re-allocates a given memory area to the new size, ensuring data contained within the original memory block is maintained. More...
void	STB_AppRegisterCacheFreeFunction (BOOLEAN(*callback_function)(void))

Detailed Description

Heap memory management routines.

Date

06/09/2000

Function Documentation

void STB_AppFreeMemory

(

void *

addr

)

Releases previously allocated application heap memory.

Parameters

addr	- pointer to block to release.

void* STB_AppGetMemory

(

U32BIT

bytes

)

Attempts to allocate memory from the application heap.

Parameters

bytes

- block size required in bytes

Returns

Pointer to block allocated or NULL on failure.

void* STB_AppResizeMemory	(	void *	ptr,
		U32BIT	new_num_bytes
	)

Re-allocates a given memory area to the new size, ensuring data contained within the original memory block is maintained.

Parameters

ptr	- pointer to block to re-allocate.
new_num_bytes	- size of new memory block

Returns

Pointer to the new (re-sized) memory block.

void STB_FreeMemory

(

void *

addr

)

Releases previously allocated heap memory.

Parameters

addr	- pointer to block to release.

void* STB_GetMemory

(

U32BIT

bytes

)

Attempts to allocate memory from the heap.

Parameters

bytes

- block size required in bytes

Returns

Pointer to block allocated or NULL on failure.

void* STB_ResizeMemory	(	void *	ptr,
		U32BIT	new_num_bytes
	)

Re-allocates a given memory area to the new size, ensuring data contained within the original memory block is maintained.

Parameters

ptr	- pointer to block to re-allocate.
new_num_bytes	- size of new memory block

Returns

Pointer to the new (re-sized) memory block.