bff4c13475
Change-Id: I328ac7a95ccc87732efae48b567a0556865928f3
258 lines
5.9 KiB
C++
258 lines
5.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#ifndef INCLUDED_STORE_SOURCE_STORBIOS_HXX
|
|
#define INCLUDED_STORE_SOURCE_STORBIOS_HXX
|
|
|
|
#include "sal/types.h"
|
|
#include "rtl/ref.hxx"
|
|
#include "osl/mutex.hxx"
|
|
|
|
#include "store/types.h"
|
|
#include "object.hxx"
|
|
#include "lockbyte.hxx"
|
|
#include "storbase.hxx"
|
|
#include "storcach.hxx"
|
|
|
|
/*========================================================================
|
|
*
|
|
* OStorePageBIOS.
|
|
*
|
|
*======================================================================*/
|
|
namespace store
|
|
{
|
|
|
|
struct SuperBlockPage;
|
|
|
|
class OStorePageBIOS : public store::OStoreObject
|
|
{
|
|
public:
|
|
/** Construction.
|
|
*/
|
|
OStorePageBIOS();
|
|
|
|
/** Conversion into Mutex&
|
|
*/
|
|
inline operator osl::Mutex& (void) const;
|
|
|
|
/** Initialization.
|
|
* @param pLockBytes [in]
|
|
* @param eAccessMode [in]
|
|
* @param rnPageSize [inout]
|
|
* @return store_E_None upon success
|
|
*/
|
|
virtual storeError initialize (
|
|
ILockBytes * pLockBytes,
|
|
storeAccessMode eAccessMode,
|
|
sal_uInt16 & rnPageSize);
|
|
|
|
rtl::Reference< PageData::Allocator > & allocator()
|
|
{
|
|
return m_xAllocator;
|
|
}
|
|
|
|
/** read.
|
|
*/
|
|
storeError read (
|
|
sal_uInt32 nAddr, void *pData, sal_uInt32 nSize);
|
|
|
|
/** write.
|
|
*/
|
|
storeError write (
|
|
sal_uInt32 nAddr, const void *pData, sal_uInt32 nSize);
|
|
|
|
/** isWriteable.
|
|
*/
|
|
inline bool isWriteable() const;
|
|
|
|
/** isValid.
|
|
*/
|
|
inline bool isValid() const;
|
|
|
|
/** Page Access.
|
|
*/
|
|
storeError acquirePage (
|
|
const OStorePageDescriptor& rDescr, storeAccessMode eMode);
|
|
|
|
storeError releasePage (const OStorePageDescriptor& rDescr);
|
|
|
|
sal_uInt32 getRefererCount();
|
|
|
|
/** Page Allocation.
|
|
*/
|
|
enum Allocation
|
|
{
|
|
ALLOCATE_FIRST = 0,
|
|
ALLOCATE_BEST = 1,
|
|
ALLOCATE_EOF = 2
|
|
};
|
|
|
|
storeError allocate (
|
|
OStorePageObject& rPage, Allocation eAllocation = ALLOCATE_FIRST);
|
|
|
|
storeError free (sal_uInt32 nAddr);
|
|
|
|
/** Page I/O.
|
|
*/
|
|
storeError loadObjectAt (
|
|
OStorePageObject& rPage, sal_uInt32 nAddr);
|
|
|
|
storeError saveObjectAt (
|
|
OStorePageObject& rPage, sal_uInt32 nAddr);
|
|
|
|
/** close.
|
|
* @return store_E_None upon success.
|
|
*/
|
|
storeError close();
|
|
|
|
/** flush.
|
|
* @return store_E_None upon success.
|
|
*/
|
|
storeError flush();
|
|
|
|
/** size.
|
|
*/
|
|
storeError size (sal_uInt32 &rnSize);
|
|
|
|
/** ScanContext.
|
|
*/
|
|
struct ScanContext
|
|
{
|
|
/** Representation.
|
|
*/
|
|
OStorePageDescriptor m_aDescr;
|
|
sal_uInt32 m_nSize;
|
|
sal_uInt32 m_nMagic;
|
|
|
|
/** Construction.
|
|
*/
|
|
inline ScanContext();
|
|
|
|
/** isValid.
|
|
*/
|
|
inline bool isValid() const;
|
|
};
|
|
|
|
/** scanBegin.
|
|
*/
|
|
storeError scanBegin (
|
|
ScanContext &rCtx,
|
|
sal_uInt32 nMagic = 0);
|
|
|
|
/** scanNext.
|
|
*/
|
|
storeError scanNext (
|
|
ScanContext &rCtx,
|
|
OStorePageObject &rPage);
|
|
|
|
protected:
|
|
/** Destruction (OReference).
|
|
*/
|
|
virtual ~OStorePageBIOS();
|
|
|
|
private:
|
|
/** Representation.
|
|
*/
|
|
rtl::Reference<ILockBytes> m_xLockBytes;
|
|
osl::Mutex m_aMutex;
|
|
|
|
SuperBlockPage * m_pSuper;
|
|
|
|
bool m_bWriteable;
|
|
|
|
rtl::Reference< PageData::Allocator > m_xAllocator;
|
|
rtl::Reference< PageCache > m_xCache;
|
|
|
|
/** Page Access (control).
|
|
*/
|
|
public:
|
|
struct Ace
|
|
{
|
|
Ace * m_next;
|
|
Ace * m_prev;
|
|
|
|
sal_uInt32 m_addr;
|
|
sal_uInt32 m_used;
|
|
|
|
Ace();
|
|
~Ace();
|
|
|
|
static int SAL_CALL constructor (void * obj, void * arg);
|
|
|
|
static Ace * find (Ace * head, sal_uInt32 addr);
|
|
static void insert (Ace * head, Ace * entry);
|
|
};
|
|
|
|
private:
|
|
Ace m_ace_head;
|
|
|
|
class AceCache;
|
|
|
|
/** Initialization.
|
|
*/
|
|
storeError initialize_Impl (
|
|
ILockBytes * pLockBytes,
|
|
storeAccessMode eAccessMode,
|
|
sal_uInt16 & rnPageSize);
|
|
void cleanup_Impl();
|
|
|
|
/** Page Maintenance.
|
|
*/
|
|
storeError loadObjectAt_Impl (
|
|
OStorePageObject & rPage, sal_uInt32 nAddr);
|
|
storeError saveObjectAt_Impl (
|
|
OStorePageObject & rPage, sal_uInt32 nAddr);
|
|
|
|
OStorePageBIOS (const OStorePageBIOS&) = delete;
|
|
OStorePageBIOS& operator= (const OStorePageBIOS&) = delete;
|
|
};
|
|
|
|
inline OStorePageBIOS::operator osl::Mutex& (void) const
|
|
{
|
|
return (osl::Mutex&)m_aMutex;
|
|
}
|
|
inline bool OStorePageBIOS::isWriteable() const
|
|
{
|
|
return m_bWriteable;
|
|
}
|
|
inline bool OStorePageBIOS::isValid() const
|
|
{
|
|
return m_xLockBytes.is();
|
|
}
|
|
|
|
inline OStorePageBIOS::ScanContext::ScanContext()
|
|
: m_aDescr (0, 0, 0), m_nSize (0), m_nMagic (0)
|
|
{
|
|
}
|
|
inline bool OStorePageBIOS::ScanContext::isValid() const
|
|
{
|
|
return (m_aDescr.m_nAddr < m_nSize);
|
|
}
|
|
|
|
/*========================================================================
|
|
*
|
|
* The End.
|
|
*
|
|
*======================================================================*/
|
|
|
|
} // namespace store
|
|
|
|
#endif // INCLUDED_STORE_SOURCE_STORBIOS_HXX
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|