memory_handler.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include "include/memory_handler.h"

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Data Structures
struct	Memory_handler
Functions
void	_free_memory (void *memory, int true_f)
int	init_memory_handler ()
void	fill_memory (void *mem)
int	check_memory (void *mem)
void *	allocate_memory (int size)
void	free_memory (void *memory)
void	true_free_memory (void *memory)
void	free_all_memory ()
void	debug_print_memory ()
Variables
int	DEBUG
struct Memory_handler *	MEM_HANDLE = NULL

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Function Documentation

void _free_memory	(	void *	memory,
		int	true_f
	)

For internal use only

Marks memory as freed, optionally actually frees the memory

Parameters:

memory	pointer to memory
true_f	1 for actual freeing

Definition at line 274 of file memory_handler.c.

References check_memory(), DEBUG, DEBUG_BUFFER_BORDER, Memory_handler::mem, MEM_HANDLE, Memory_handler::next, Memory_handler::size, and Memory_handler::used.

Referenced by free_memory(), and true_free_memory().

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void* allocate_memory

(

int

size

)

Allocate memory for atleast size bytes.

Parameters:

size	size of memory in bytes

Returns:

pointer to memory if ok NULL if out of memory

Definition at line 168 of file memory_handler.c.

References DEBUG, DEBUG_BUFFER_BORDER, fill_memory(), Memory_handler::mem, MEM_HANDLE, Memory_handler::next, Memory_handler::size, and Memory_handler::used.

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int check_memory

(

void *

mem

)

Checks that memory usage of mem has not borders on both sides

Parameters:

mem	pointer to memory

Definition at line 145 of file memory_handler.c.

References DEBUG, DEBUG_BUFFER_BORDER, and DEBUG_BUFFER_VALUE.

Referenced by _free_memory().

void debug_print_memory

(

)

Debug printing. Prints usage of memory and some info.

Definition at line 368 of file memory_handler.c.

References DEBUG, Memory_handler::mem, MEM_HANDLE, Memory_handler::next, Memory_handler::size, and Memory_handler::used.

void fill_memory

(

void *

mem

)

Fills memory with DEBUG_BUFFER_VALUE for DEBUG_BUFFER_BORDER bytes

Parameters:

mem	pointer to memory

Definition at line 130 of file memory_handler.c.

References DEBUG_BUFFER_BORDER, and DEBUG_BUFFER_VALUE.

Referenced by allocate_memory().

void free_all_memory

(

)

Free all memory, permanently. Used as clean_up() function.

Definition at line 334 of file memory_handler.c.

References Memory_handler::mem, Memory_handler::next, Memory_handler::size, and Memory_handler::used.

void free_memory

(

void *

memory

)

Sets memory free for re-use, but does not actually free any memory

Parameters:

memory

Definition at line 255 of file memory_handler.c.

References _free_memory().

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int init_memory_handler

(

)

Initializes this whole handler thingie. MUST BE CALLED

Returns:

0 - on success, 1 - on failure (out of memory )

Definition at line 104 of file memory_handler.c.

References DEBUG, Memory_handler::mem, Memory_handler::next, Memory_handler::size, and Memory_handler::used.

void true_free_memory

(

void *

memory

)

Does the really freeing memory, deallocates the memory.

Parameters:

memory

pointer to memory

Definition at line 264 of file memory_handler.c.

References _free_memory().

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Variable Documentation

int DEBUG

Referenced by _free_memory(), allocate_memory(), check_memory(), debug_print_memory(), and init_memory_handler().

struct Memory_handler* MEM_HANDLE = NULL

Global handle for memory handler

Definition at line 93 of file memory_handler.c.

Referenced by _free_memory(), allocate_memory(), and debug_print_memory().