202 lines
5.3 KiB
C
202 lines
5.3 KiB
C
/* $Id$ */
|
|
/*
|
|
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
|
|
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#ifndef __PJ_POOL_ALT_H__
|
|
#define __PJ_POOL_ALT_H__
|
|
|
|
#define __PJ_POOL_H__
|
|
|
|
PJ_BEGIN_DECL
|
|
|
|
/**
|
|
* The type for function to receive callback from the pool when it is unable
|
|
* to allocate memory. The elegant way to handle this condition is to throw
|
|
* exception, and this is what is expected by most of this library
|
|
* components.
|
|
*/
|
|
typedef void pj_pool_callback(pj_pool_t *pool, pj_size_t size);
|
|
|
|
struct pj_pool_mem
|
|
{
|
|
struct pj_pool_mem *next;
|
|
|
|
/* data follows immediately */
|
|
};
|
|
|
|
|
|
struct pj_pool_t
|
|
{
|
|
struct pj_pool_mem *first_mem;
|
|
pj_pool_factory *factory;
|
|
char obj_name[32];
|
|
pj_size_t used_size;
|
|
pj_pool_callback *cb;
|
|
};
|
|
|
|
|
|
#define PJ_POOL_SIZE (sizeof(struct pj_pool_t))
|
|
|
|
/**
|
|
* This constant denotes the exception number that will be thrown by default
|
|
* memory factory policy when memory allocation fails.
|
|
*/
|
|
extern int PJ_NO_MEMORY_EXCEPTION;
|
|
|
|
|
|
|
|
/*
|
|
* Declare all pool API as macro that calls the implementation
|
|
* function.
|
|
*/
|
|
#define pj_pool_create(fc,nm,init,inc,cb) \
|
|
pj_pool_create_imp(__FILE__, __LINE__, fc, nm, init, inc, cb)
|
|
|
|
#define pj_pool_release(pool) pj_pool_release_imp(pool)
|
|
#define pj_pool_getobjname(pool) pj_pool_getobjname_imp(pool)
|
|
#define pj_pool_reset(pool) pj_pool_reset_imp(pool)
|
|
#define pj_pool_get_capacity(pool) pj_pool_get_capacity_imp(pool)
|
|
#define pj_pool_get_used_size(pool) pj_pool_get_used_size_imp(pool)
|
|
#define pj_pool_alloc(pool,sz) \
|
|
pj_pool_alloc_imp(__FILE__, __LINE__, pool, sz)
|
|
|
|
#define pj_pool_calloc(pool,cnt,elem) \
|
|
pj_pool_calloc_imp(__FILE__, __LINE__, pool, cnt, elem)
|
|
|
|
#define pj_pool_zalloc(pool,sz) \
|
|
pj_pool_zalloc_imp(__FILE__, __LINE__, pool, sz)
|
|
|
|
|
|
|
|
/*
|
|
* Declare prototypes for pool implementation API.
|
|
*/
|
|
|
|
/* Create pool */
|
|
PJ_DECL(pj_pool_t*) pj_pool_create_imp(const char *file, int line,
|
|
void *factory,
|
|
const char *name,
|
|
pj_size_t initial_size,
|
|
pj_size_t increment_size,
|
|
pj_pool_callback *callback);
|
|
|
|
/* Release pool */
|
|
PJ_DECL(void) pj_pool_release_imp(pj_pool_t *pool);
|
|
|
|
/* Get pool name */
|
|
PJ_DECL(const char*) pj_pool_getobjname_imp(pj_pool_t *pool);
|
|
|
|
/* Reset pool */
|
|
PJ_DECL(void) pj_pool_reset_imp(pj_pool_t *pool);
|
|
|
|
/* Get capacity */
|
|
PJ_DECL(pj_size_t) pj_pool_get_capacity_imp(pj_pool_t *pool);
|
|
|
|
/* Get total used size */
|
|
PJ_DECL(pj_size_t) pj_pool_get_used_size_imp(pj_pool_t *pool);
|
|
|
|
/* Allocate memory from the pool */
|
|
PJ_DECL(void*) pj_pool_alloc_imp(const char *file, int line,
|
|
pj_pool_t *pool, pj_size_t sz);
|
|
|
|
/* Allocate memory from the pool and zero the memory */
|
|
PJ_DECL(void*) pj_pool_calloc_imp(const char *file, int line,
|
|
pj_pool_t *pool, unsigned cnt,
|
|
unsigned elemsz);
|
|
|
|
/* Allocate memory from the pool and zero the memory */
|
|
PJ_DECL(void*) pj_pool_zalloc_imp(const char *file, int line,
|
|
pj_pool_t *pool, pj_size_t sz);
|
|
|
|
|
|
#define PJ_POOL_ZALLOC_T(pool,type) \
|
|
((type*)pj_pool_zalloc(pool, sizeof(type)))
|
|
#define PJ_POOL_ALLOC_T(pool,type) \
|
|
((type*)pj_pool_alloc(pool, sizeof(type)))
|
|
#ifndef PJ_POOL_ALIGNMENT
|
|
# define PJ_POOL_ALIGNMENT 4
|
|
#endif
|
|
|
|
/**
|
|
* This structure declares pool factory interface.
|
|
*/
|
|
typedef struct pj_pool_factory_policy
|
|
{
|
|
/**
|
|
* Allocate memory block (for use by pool). This function is called
|
|
* by memory pool to allocate memory block.
|
|
*
|
|
* @param factory Pool factory.
|
|
* @param size The size of memory block to allocate.
|
|
*
|
|
* @return Memory block.
|
|
*/
|
|
void* (*block_alloc)(pj_pool_factory *factory, pj_size_t size);
|
|
|
|
/**
|
|
* Free memory block.
|
|
*
|
|
* @param factory Pool factory.
|
|
* @param mem Memory block previously allocated by block_alloc().
|
|
* @param size The size of memory block.
|
|
*/
|
|
void (*block_free)(pj_pool_factory *factory, void *mem, pj_size_t size);
|
|
|
|
/**
|
|
* Default callback to be called when memory allocation fails.
|
|
*/
|
|
pj_pool_callback *callback;
|
|
|
|
/**
|
|
* Option flags.
|
|
*/
|
|
unsigned flags;
|
|
|
|
} pj_pool_factory_policy;
|
|
|
|
struct pj_pool_factory
|
|
{
|
|
pj_pool_factory_policy policy;
|
|
int dummy;
|
|
};
|
|
|
|
struct pj_caching_pool
|
|
{
|
|
pj_pool_factory factory;
|
|
|
|
/* just to make it compilable */
|
|
unsigned used_count;
|
|
unsigned used_size;
|
|
unsigned peak_used_size;
|
|
};
|
|
|
|
/* just to make it compilable */
|
|
typedef struct pj_pool_block
|
|
{
|
|
int dummy;
|
|
} pj_pool_block;
|
|
|
|
#define pj_caching_pool_init( cp, pol, mac)
|
|
#define pj_caching_pool_destroy(cp)
|
|
#define pj_pool_factory_dump(pf, detail)
|
|
|
|
PJ_END_DECL
|
|
|
|
#endif /* __PJ_POOL_ALT_H__ */
|
|
|