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// Copyright (c) 2002 David Muse
// See the COPYING file for more information.
#ifndef RUDIMENTS_MEMORYPOOL_H
#define RUDIMENTS_MEMORYPOOL_H
#include <rudiments/private/memorypoolincludes.h>
typedef linkedlist<memorypoolnode *> memorypoollist;
typedef linkedlistnode<memorypoolnode *> memorypoollistnode;
// The memorypool class provides methods for creating and using a memory pool.
//
// If you have an iterative process that requires variable amounts of ram
// for each iteration, using a memory pool can be faster than allocating
// and deallocating memory on-demand and less resource-intensive than
// allocating static buffers that are large enough to accommodate the maximum
// amount of data you may have to store.
class memorypool {
public:
memorypool(size_t initialsize,
size_t increment,
size_t resizeinterval);
// Creates a memory pool of initial size "initialsize".
//
// When the pool needs to grow, it will grow by at least
// "increment" bytes. If more than increment bytes
// are requested, it will grow by that amount instead.
//
// When free() has been called "resizeinterval" times,
// it will evaluate the average amount of memory
// malloc'ed (since the last time it did this) and
// resize the initial buffer size to this size. This
// will ideally minimize the
~memorypool();
// Destroys the memory pool.
unsigned char *malloc(size_t size);
// Returns a pointer to a contiguous block of "size"
// bytes in the pool. The pool will grow as necessary
// to accomodate allocations.
unsigned char *calloc(size_t size);
// Returns a pointer to a contiguous block of "size"
// bytes in the pool. The pool will grow as necessary
// to accomodate allocations. Each byte of data in
// the block of data is set to NULL.
void free();
// Shrinks the pool back down to it's initial size
// and frees all previously allocated blocks.
void print();
// Prints a visual representation of the pool.
#include <rudiments/private/memorypool.h>
};
#endif
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