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/* $Id: pool_i.h 4298 2012-11-22 05:00:01Z nanang $ */
/*
* 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
*/
#include <pj/string.h>
PJ_IDEF(pj_size_t) pj_pool_get_capacity( pj_pool_t *pool )
{
return pool->capacity;
}
PJ_IDEF(pj_size_t) pj_pool_get_used_size( pj_pool_t *pool )
{
pj_pool_block *b = pool->block_list.next;
pj_size_t used_size = sizeof(pj_pool_t);
while (b != &pool->block_list) {
used_size += (b->cur - b->buf) + sizeof(pj_pool_block);
b = b->next;
}
return used_size;
}
PJ_IDEF(void*) pj_pool_alloc_from_block( pj_pool_block *block, pj_size_t size )
{
/* The operation below is valid for size==0.
* When size==0, the function will return the pointer to the pool
* memory address, but no memory will be allocated.
*/
if (size & (PJ_POOL_ALIGNMENT-1)) {
size = (size + PJ_POOL_ALIGNMENT) & ~(PJ_POOL_ALIGNMENT-1);
}
if ((pj_size_t)(block->end - block->cur) >= size) {
void *ptr = block->cur;
block->cur += size;
return ptr;
}
return NULL;
}
PJ_IDEF(void*) pj_pool_alloc( pj_pool_t *pool, pj_size_t size)
{
void *ptr = pj_pool_alloc_from_block(pool->block_list.next, size);
if (!ptr)
ptr = pj_pool_allocate_find(pool, size);
return ptr;
}
PJ_IDEF(void*) pj_pool_calloc( pj_pool_t *pool, pj_size_t count, pj_size_t size)
{
void *buf = pj_pool_alloc( pool, size*count);
if (buf)
pj_bzero(buf, size * count);
return buf;
}
PJ_IDEF(const char *) pj_pool_getobjname( const pj_pool_t *pool )
{
return pool->obj_name;
}
PJ_IDEF(pj_pool_t*) pj_pool_create( pj_pool_factory *f,
const char *name,
pj_size_t initial_size,
pj_size_t increment_size,
pj_pool_callback *callback)
{
return (*f->create_pool)(f, name, initial_size, increment_size, callback);
}
PJ_IDEF(void) pj_pool_release( pj_pool_t *pool )
{
if (pool->factory->release_pool)
(*pool->factory->release_pool)(pool->factory, pool);
}
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