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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: alloc_arena.h,v $
*
* $Revision: 1.2 $
*
* last change: $Author: rt $ $Date: 2006-05-02 12:11:03 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef INCLUDED_RTL_ALLOC_ARENA_H
#define INCLUDED_RTL_ALLOC_ARENA_H
#ifndef _SAL_TYPES_H_
#include "sal/types.h"
#endif
#ifndef _RTL_ALLOC_H_
#include "rtl/alloc.h"
#endif
#ifndef INCLUDED_RTL_ALLOC_IMPL_H
#include "alloc_impl.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** rtl_arena_stat_type
* @internal
*/
typedef struct rtl_arena_stat_st rtl_arena_stat_type;
struct rtl_arena_stat_st
{
sal_uInt64 m_alloc;
sal_uInt64 m_free;
sal_Size m_mem_total;
sal_Size m_mem_alloc;
};
/** rtl_arena_segment_type
* @internal
*/
#define RTL_ARENA_SEGMENT_TYPE_HEAD ((sal_Size)(0x01))
#define RTL_ARENA_SEGMENT_TYPE_SPAN ((sal_Size)(0x02))
#define RTL_ARENA_SEGMENT_TYPE_FREE ((sal_Size)(0x04))
#define RTL_ARENA_SEGMENT_TYPE_USED ((sal_Size)(0x08))
typedef struct rtl_arena_segment_st rtl_arena_segment_type;
struct rtl_arena_segment_st
{
/* segment list linkage */
rtl_arena_segment_type * m_snext;
rtl_arena_segment_type * m_sprev;
/* free/used list linkage */
rtl_arena_segment_type * m_fnext;
rtl_arena_segment_type * m_fprev;
/* segment description */
sal_uIntPtr m_addr;
sal_Size m_size;
sal_Size m_type;
};
/** rtl_arena_type
* @internal
*/
#define RTL_ARENA_FREELIST_SIZE (sizeof(void*) * 8)
#define RTL_ARENA_HASH_SIZE 64
#define RTL_ARENA_FLAG_RESCALE 1 /* within hash rescale operation */
struct rtl_arena_st
{
/* linkage */
rtl_arena_type * m_arena_next;
rtl_arena_type * m_arena_prev;
/* properties */
char m_name[RTL_ARENA_NAME_LENGTH + 1];
long m_flags;
rtl_memory_lock_type m_lock;
rtl_arena_stat_type m_stats;
rtl_arena_type * m_source_arena;
void * (SAL_CALL * m_source_alloc)(rtl_arena_type *, sal_Size *);
void (SAL_CALL * m_source_free) (rtl_arena_type *, void *, sal_Size);
sal_Size m_quantum;
sal_Size m_quantum_shift; /* log2(m_quantum) */
rtl_arena_segment_type m_segment_reserve_span_head;
rtl_arena_segment_type m_segment_reserve_head;
rtl_arena_segment_type m_segment_head;
rtl_arena_segment_type m_freelist_head[RTL_ARENA_FREELIST_SIZE];
sal_Size m_freelist_bitmap;
rtl_arena_segment_type ** m_hash_table;
rtl_arena_segment_type * m_hash_table_0[RTL_ARENA_HASH_SIZE];
sal_Size m_hash_size; /* m_hash_mask + 1 */
sal_Size m_hash_shift; /* log2(m_hash_size) */
sal_Size m_qcache_max;
rtl_cache_type ** m_qcache_ptr;
};
/** gp_default_arena
* default arena with pagesize quantum
*
* @internal
*/
extern rtl_arena_type * gp_default_arena;
#ifdef __cplusplus
}
#endif
#endif /* INCLUDED_RTL_ALLOC_ARENA_H */
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