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/*
* $Id: palloc.h 12202 2006-11-03 05:22:33Z cbiere $
*
* Copyright (c) 2005, Raphael Manfredi
*
*----------------------------------------------------------------------
* This file is part of gtk-gnutella.
*
* gtk-gnutella is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* gtk-gnutella is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gtk-gnutella; if not, write to the Free Software
* Foundation, Inc.:
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*----------------------------------------------------------------------
*/
/**
* @ingroup lib
* @file
*
* Memory pool, keeping track of malloc()'ed blocks of fixed size and
* thereby avoiding too frequent malloc()/free().. This is to be used
* for large enough blocks, otherwise walloc() or even zalloc() should
* be preferred.
*
* @author Raphael Manfredi
* @date 2005
*/
#ifndef _palloc_h_
#define _palloc_h_
#include "common.h"
typedef gpointer (*pool_alloc_t)(size_t len);
typedef void (*pool_free_t)(gpointer addr);
/**
* A memory pool descriptor.
*/
typedef struct pool {
size_t size; /**< Size of blocks held in the pool */
gint max; /**< Maximum amount of blocks to keep around */
GSList *buffers; /**< Allocated buffers in the pool */
gint allocated; /**< Amount of allocated buffers */
gint held; /**< Amount of available buffers */
pool_alloc_t alloc; /**< Memory allocation routine */
pool_free_t dealloc; /**< Memory release routine */
} pool_t;
/*
* Public interface
*/
pool_t *pool_create(
size_t size, gint max, pool_alloc_t alloc, pool_free_t dealloc);
void pool_free(pool_t *pool);
gpointer palloc(pool_t *pool);
void pfree(pool_t *pool, gpointer obj);
#endif /* _palloc_h_ */
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