tor/src/common/mempool.h

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/* Copyright 2007 Nick Mathewson */
/* See LICENSE for licensing information */
/* $Id: /tor/trunk/src/common/util.c 12153 2007-03-12T03:11:12.797278Z nickm $ */
/**
* \file util.h
* \brief Headers for mempool.c
**/
#ifndef MEMPOOL_H
#define MEMPOOL_H
typedef struct mp_pool_t mp_pool_t;
void *mp_pool_get(mp_pool_t *pool);
void mp_pool_release(void *item);
mp_pool_t *mp_pool_new(size_t item_size, unsigned int n_per_chunk);
void mp_pool_clean(mp_pool_t *pool);
void mp_pool_destroy(mp_pool_t *pool);
#ifdef MEMPOOL_PRIVATE
typedef struct mp_allocated_t mp_allocated_t;
typedef struct mp_chunk_t mp_chunk_t;
/** DOCDOC */
struct mp_chunk_t {
unsigned long magic;
mp_chunk_t *next;
mp_chunk_t *prev;
mp_pool_t *pool;
mp_allocated_t *first_free;
int n_allocated;
int capacity;
size_t mem_size;
char *next_mem;
char mem[1];
};
/** DOCDOC */
struct mp_pool_t {
mp_chunk_t *empty_chunks;
mp_chunk_t *used_chunks;
mp_chunk_t *full_chunks;
int n_empty_chunks;
size_t new_chunk_capacity;
size_t item_alloc_size;
};
#endif
#endif