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MemCache Class Reference

#include <MemCache.hpp>

List of all members.

Public Methods
	MemCache (int cachesize)
	MemCache (int *cache, int cachesize)
	use the given memory
	MemCache ()
	~MemCache ()
int *	getMem (int chunksize)
int *	getMoreMem (int newsize, int *location, int oldsize)
void	freeMem (int *location, int memsize)
void	flushMem ()
int *	getBegin ()
int *	getEnd ()
Private Methods
int *	getFromFree (int csize)
Private Attributes
int *	begin
int	size
	point to the start of our cache
int *	end
	the size of our cache
int	intsize
	index of where free memory begins
vector< int * >	freelist [NLISTS]
	sizeof(int) value
bool	ourmem
	array of lists of free memory

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Constructor & Destructor Documentation

MemCache::MemCache (  int    cachesize )

constructor Parameters: cachesize  how much memory to allocate this cache in bytes

MemCache::MemCache (  int *    cache, int    cachesize )

use the given memory

MemCache::MemCache (    )

default constructor that doesn't do much

MemCache::~MemCache (    )

destructor free the memory we allocated

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Member Function Documentation

void MemCache::flushMem (    )

reinitializes

void MemCache::freeMem (  int *    location, int    memsize )

"free" the memory at this pointer this cache will remember it in the free list this does not mean delete the memory Parameters: location  beginning of location of memory memsize  how much to free at this location

int * MemCache::getBegin (    )

int * MemCache::getEnd (    )

int * MemCache::getFromFree (  int    csize )  [private]

returns pointer to memory holes if available returns NULL if nothing is available Parameters: int  csize size of memory we're requesting

int * MemCache::getMem (  int    chunksize )

Returns: a pointer to some memory location of size chunksize Parameters: chunksize  how much memory we need in bytes as a power of 2,

int * MemCache::getMoreMem (  int    newsize, int *    location, int    oldsize )

returns pointer to a new location of newsize containing all the elements of the old location Returns: NULL if we can't get more memory, or if we are requesting a newsize that is not bigger than the oldsize

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Member Data Documentation

int* MemCache::begin [private]

int* MemCache::end [private]

the size of our cache

vector<int*> MemCache::freelist[NLISTS] [private]

sizeof(int) value

int MemCache::intsize [private]

index of where free memory begins

bool MemCache::ourmem [private]

array of lists of free memory

int MemCache::size [private]

point to the start of our cache

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The documentation for this class was generated from the following files:

• MemCache.hpp
• MemCache.cpp

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