171 lines
5.1 KiB
C++
171 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef INCLUDED_RTL_ALLOC_CACHE_HXX
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#define INCLUDED_RTL_ALLOC_CACHE_HXX
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#include "sal/types.h"
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#include "rtl/alloc.h"
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#include "alloc_impl.hxx"
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/** rtl_cache_stat_type
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* @internal
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*/
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struct rtl_cache_stat_type
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{
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sal_uInt64 m_alloc;
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sal_uInt64 m_free;
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sal_Size m_mem_total;
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sal_Size m_mem_alloc;
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};
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/** rtl_cache_bufctl_type
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* @internal
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*/
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struct rtl_cache_bufctl_type
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{
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rtl_cache_bufctl_type * m_next; /* linkage */
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sal_uIntPtr m_addr; /* buffer address */
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sal_uIntPtr m_slab; /* parent slab address */
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};
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/** rtl_cache_slab_type
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* @internal
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*/
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struct rtl_cache_slab_type
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{
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rtl_cache_slab_type * m_slab_next; /* slab linkage */
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rtl_cache_slab_type * m_slab_prev; /* slab linkage */
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sal_Size m_ntypes; /* number of buffers used */
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sal_uIntPtr m_data; /* buffer start addr */
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sal_uIntPtr m_bp; /* free buffer linkage 'base pointer' */
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rtl_cache_bufctl_type * m_sp; /* free buffer linkage 'stack pointer' */
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};
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/** rtl_cache_magazine_type
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* @internal
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*/
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#define RTL_CACHE_MAGAZINE_SIZE 61
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struct rtl_cache_magazine_type
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{
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rtl_cache_magazine_type * m_mag_next; /* depot linkage */
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sal_Size m_mag_size;
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sal_Size m_mag_used;
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void * m_objects[RTL_CACHE_MAGAZINE_SIZE];
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};
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/** rtl_cache_depot_type
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* @internal
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*/
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struct rtl_cache_depot_type
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{
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/* magazine list */
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rtl_cache_magazine_type * m_mag_next; /* linkage */
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sal_Size m_mag_count; /* count */
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/* working set parameters */
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sal_Size m_curr_min;
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sal_Size m_prev_min;
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};
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/** rtl_cache_type
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* @internal
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*/
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#define RTL_CACHE_HASH_SIZE 8
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#define RTL_CACHE_FEATURE_HASH 1
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#define RTL_CACHE_FEATURE_BULKDESTROY 2
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#define RTL_CACHE_FEATURE_RESCALE 4 /* within hash rescale operation */
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struct rtl_cache_st
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{
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/* linkage */
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rtl_cache_type * m_cache_next;
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rtl_cache_type * m_cache_prev;
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/* properties */
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char m_name[RTL_CACHE_NAME_LENGTH + 1];
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long m_features;
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sal_Size m_type_size; /* const */
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sal_Size m_type_align; /* const */
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sal_Size m_type_shift; /* log2(m_type_size); const */
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int (SAL_CALL * m_constructor)(void * obj, void * userarg); /* const */
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void (SAL_CALL * m_destructor) (void * obj, void * userarg); /* const */
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void (SAL_CALL * m_reclaim) (void * userarg); /* const */
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void * m_userarg;
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/* slab layer */
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rtl_memory_lock_type m_slab_lock;
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rtl_cache_stat_type m_slab_stats;
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rtl_arena_type * m_source; /* slab supplier; const */
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sal_Size m_slab_size; /* const */
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sal_Size m_ntypes; /* number of buffers per slab; const */
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sal_Size m_ncolor; /* next slab color */
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sal_Size m_ncolor_max; /* max. slab color */
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rtl_cache_slab_type m_free_head;
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rtl_cache_slab_type m_used_head;
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rtl_cache_bufctl_type ** m_hash_table;
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rtl_cache_bufctl_type * m_hash_table_0[RTL_CACHE_HASH_SIZE];
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sal_Size m_hash_size; /* m_hash_mask + 1 */
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sal_Size m_hash_shift; /* log2(m_hash_size) */
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/* depot layer */
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rtl_memory_lock_type m_depot_lock;
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rtl_cache_depot_type m_depot_empty;
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rtl_cache_depot_type m_depot_full;
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rtl_cache_type * m_magazine_cache; /* magazine supplier; const */
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/* cpu layer */
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rtl_cache_magazine_type * m_cpu_curr;
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rtl_cache_magazine_type * m_cpu_prev;
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rtl_cache_stat_type m_cpu_stats;
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};
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#endif /* INCLUDED_RTL_ALLOC_CACHE_HXX */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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