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/* ========================================================================= *
* *
* The Apache Software License, Version 1.1 *
* *
* Copyright (c) 1999-2001 The Apache Software Foundation. *
* All rights reserved. *
* *
* ========================================================================= *
* *
* Redistribution and use in source and binary forms, with or without modi- *
* fication, are permitted provided that the following conditions are met: *
* *
* 1. Redistributions of source code must retain the above copyright notice *
* notice, this list of conditions and the following disclaimer. *
* *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* *
* 3. The end-user documentation included with the redistribution, if any, *
* must include the following acknowlegement: *
* *
* "This product includes software developed by the Apache Software *
* Foundation <http://www.apache.org/>." *
* *
* Alternately, this acknowlegement may appear in the software itself, if *
* and wherever such third-party acknowlegements normally appear. *
* *
* 4. The names "The Jakarta Project", "Jk", and "Apache Software *
* Foundation" must not be used to endorse or promote products derived *
* from this software without prior written permission. For written *
* permission, please contact <apache@apache.org>. *
* *
* 5. Products derived from this software may not be called "Apache" nor may *
* "Apache" appear in their names without prior written permission of the *
* Apache Software Foundation. *
* *
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES *
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY *
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL *
* THE APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY *
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL *
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS *
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) *
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, *
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN *
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *
* POSSIBILITY OF SUCH DAMAGE. *
* *
* ========================================================================= *
* *
* This software consists of voluntary contributions made by many indivi- *
* duals on behalf of the Apache Software Foundation. For more information *
* on the Apache Software Foundation, please see <http://www.apache.org/>. *
* *
* ========================================================================= */
/***************************************************************************
* Description: Memory Pool object header file *
* Author: Gal Shachor <shachor@il.ibm.com> *
* Version: $Revision: 1.4 $ *
***************************************************************************/
#ifndef _JK_POOL_H
#define _JK_POOL_H
#include "jk_global.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @file jk_pool.h
* @brief Jk memory allocation
*
* Similar with apr_pools, but completely unsynchronized.
* XXX use same names
*
*/
/*
* The pool atom (basic pool alocation unit) is an 8 byte long.
* Each allocation (even for 1 byte) will return a round up to the
* number of atoms.
*
* This is to help in alignment of 32/64 bit machines ...
* G.S
*/
#ifdef WIN32
typedef __int64 jk_pool_atom_t;
#elif defined(AIX)
typedef long long jk_pool_atom_t;
#elif defined(SOLARIS)
typedef long long jk_pool_atom_t;
#elif defined(LINUX)
typedef long long jk_pool_atom_t;
#elif defined(FREEBSD)
typedef long long jk_pool_atom_t;
#elif defined(OS2)
typedef long long jk_pool_atom_t;
#elif defined(NETWARE)
typedef long long jk_pool_atom_t;
#elif defined(HPUX11)
typedef long long jk_pool_atom_t;
#elif defined(IRIX)
typedef long long jk_pool_atom_t;
#elif defined(AS400)
typedef void * jk_pool_atom_t;
#else
typedef long long jk_pool_atom_t;
#endif
/*
* Pool size in number of pool atoms.
*/
#define TINY_POOL_SIZE 256 /* Tiny 1/4K atom pool. */
#define SMALL_POOL_SIZE 512 /* Small 1/2K atom pool. */
#define BIG_POOL_SIZE 2*SMALL_POOL_SIZE /* Bigger 1K atom pool. */
#define HUGE_POOL_SIZE 2*BIG_POOL_SIZE /* Huge 2K atom pool. */
/** XXX Move it to impl, make it incomplete
*/
struct jk_pool {
unsigned size;
unsigned pos;
char *buf;
unsigned dyn_size;
unsigned dyn_pos;
void **dynamic;
};
typedef struct jk_pool jk_pool_t;
void jk_open_pool(jk_pool_t *p,
jk_pool_atom_t *buf,
unsigned size);
void jk_close_pool(jk_pool_t *p);
void jk_reset_pool(jk_pool_t *p);
void *jk_pool_alloc(jk_pool_t *p,
size_t sz);
void *jk_pool_realloc(jk_pool_t *p,
size_t sz,
const void *old,
size_t old_sz);
void *jk_pool_strdup(jk_pool_t *p,
const char *s);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _JK_POOL_H */
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