a715e1b3d0
Fixes #fdo30794 Based on bin/add-modelines script (originally posted in mail 1286706307.1871.1399280959@webmail.messagingengine.com) Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
454 lines
12 KiB
C++
454 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2000, 2010 Oracle and/or its affiliates.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org 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 version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
// MARKER(update_precomp.py): autogen include statement, do not remove
|
|
#include "precompiled_store.hxx"
|
|
|
|
#include "storlckb.hxx"
|
|
|
|
#include "sal/types.h"
|
|
#include "sal/macros.h"
|
|
#include "rtl/string.h"
|
|
#include "rtl/ref.hxx"
|
|
#include "osl/mutex.hxx"
|
|
|
|
#include "store/types.h"
|
|
#include "object.hxx"
|
|
|
|
#include "storbase.hxx"
|
|
#include "stordata.hxx"
|
|
#include "storpage.hxx"
|
|
|
|
using namespace store;
|
|
|
|
/*========================================================================
|
|
*
|
|
* OStoreLockBytes implementation.
|
|
*
|
|
*======================================================================*/
|
|
const sal_uInt32 OStoreLockBytes::m_nTypeId = sal_uInt32(0x94190310);
|
|
|
|
/*
|
|
* OStoreLockBytes.
|
|
*/
|
|
OStoreLockBytes::OStoreLockBytes (void)
|
|
: m_xManager (),
|
|
m_xNode (),
|
|
m_bWriteable (false)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* ~OStoreLockBytes.
|
|
*/
|
|
OStoreLockBytes::~OStoreLockBytes (void)
|
|
{
|
|
if (m_xManager.is())
|
|
{
|
|
if (m_xNode.is())
|
|
{
|
|
OStorePageDescriptor aDescr (m_xNode->m_aDescr);
|
|
if (m_bWriteable)
|
|
m_xManager->releasePage (aDescr, store_AccessReadWrite);
|
|
else
|
|
m_xManager->releasePage (aDescr, store_AccessReadOnly);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* isKindOf.
|
|
*/
|
|
sal_Bool SAL_CALL OStoreLockBytes::isKindOf (sal_uInt32 nTypeId)
|
|
{
|
|
return (nTypeId == m_nTypeId);
|
|
}
|
|
|
|
/*
|
|
* create.
|
|
*/
|
|
storeError OStoreLockBytes::create (
|
|
OStorePageManager *pManager,
|
|
rtl_String *pPath,
|
|
rtl_String *pName,
|
|
storeAccessMode eMode)
|
|
{
|
|
rtl::Reference<OStorePageManager> xManager (pManager);
|
|
if (!xManager.is())
|
|
return store_E_InvalidAccess;
|
|
|
|
if (!(pPath && pName))
|
|
return store_E_InvalidParameter;
|
|
|
|
OStoreDirectoryPageObject aPage;
|
|
storeError eErrCode = xManager->iget (
|
|
aPage, STORE_ATTRIB_ISFILE,
|
|
pPath, pName, eMode);
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
|
|
if (!(aPage.attrib() & STORE_ATTRIB_ISFILE))
|
|
{
|
|
// No ISFILE in older versions (backward compatibility).
|
|
if (aPage.attrib() & STORE_ATTRIB_ISLINK)
|
|
return store_E_NotFile;
|
|
}
|
|
|
|
// ...
|
|
inode_holder_type xNode (aPage.get());
|
|
if (eMode != store_AccessReadOnly)
|
|
eErrCode = xManager->acquirePage (xNode->m_aDescr, store_AccessReadWrite);
|
|
else
|
|
eErrCode = xManager->acquirePage (xNode->m_aDescr, store_AccessReadOnly);
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
|
|
// ...
|
|
m_xManager = xManager;
|
|
m_xNode = xNode;
|
|
m_bWriteable = (eMode != store_AccessReadOnly);
|
|
|
|
// Check for truncation.
|
|
if (eMode == store_AccessCreate)
|
|
{
|
|
// Truncate to zero length.
|
|
eErrCode = setSize(0);
|
|
}
|
|
return eErrCode;
|
|
}
|
|
|
|
/*
|
|
* readAt.
|
|
*/
|
|
storeError OStoreLockBytes::readAt (
|
|
sal_uInt32 nOffset,
|
|
void *pBuffer,
|
|
sal_uInt32 nBytes,
|
|
sal_uInt32 &rnDone)
|
|
{
|
|
rnDone = 0;
|
|
|
|
if (!m_xManager.is())
|
|
return store_E_InvalidAccess;
|
|
|
|
if (!pBuffer)
|
|
return store_E_InvalidParameter;
|
|
if (!nBytes)
|
|
return store_E_None;
|
|
|
|
// Acquire exclusive access.
|
|
osl::MutexGuard aGuard (*m_xManager);
|
|
|
|
// Determine data length.
|
|
OStoreDirectoryPageObject aPage (m_xNode.get());
|
|
|
|
sal_uInt32 nDataLen = aPage.dataLength();
|
|
if ((nOffset + nBytes) > nDataLen)
|
|
nBytes = nDataLen - nOffset;
|
|
|
|
// Read data.
|
|
OStoreDataPageObject aData;
|
|
sal_uInt8 *pData = (sal_uInt8*)pBuffer;
|
|
while ((0 < nBytes) && (nOffset < nDataLen))
|
|
{
|
|
// Determine 'Offset' scope.
|
|
inode::ChunkScope eScope = m_xNode->scope (nOffset);
|
|
if (eScope == inode::SCOPE_INTERNAL)
|
|
{
|
|
// Read from inode page (internal scope).
|
|
inode::ChunkDescriptor aDescr (
|
|
nOffset, m_xNode->capacity());
|
|
|
|
sal_uInt32 nLength = sal_uInt32(aDescr.m_nLength);
|
|
nLength = SAL_MIN(nLength, nBytes);
|
|
|
|
memcpy (
|
|
&pData[rnDone],
|
|
&m_xNode->m_pData[aDescr.m_nOffset],
|
|
nLength);
|
|
|
|
// Adjust counters.
|
|
rnDone += nLength;
|
|
nOffset += nLength;
|
|
nBytes -= nLength;
|
|
}
|
|
else
|
|
{
|
|
// Read from data page (external scope).
|
|
inode::ChunkDescriptor aDescr (
|
|
nOffset - m_xNode->capacity(), OStoreDataPageData::capacity(m_xNode->m_aDescr)); // @@@
|
|
|
|
sal_uInt32 nLength = sal_uInt32(aDescr.m_nLength);
|
|
nLength = SAL_MIN(nLength, nBytes);
|
|
|
|
storeError eErrCode = aPage.read (aDescr.m_nPage, aData, *m_xManager);
|
|
if (eErrCode != store_E_None)
|
|
{
|
|
if (eErrCode != store_E_NotExists)
|
|
return eErrCode;
|
|
|
|
memset (
|
|
&pData[rnDone],
|
|
0,
|
|
nLength);
|
|
}
|
|
else
|
|
{
|
|
PageHolderObject< data > xData (aData.makeHolder<data>());
|
|
memcpy (
|
|
&pData[rnDone],
|
|
&xData->m_pData[aDescr.m_nOffset],
|
|
nLength);
|
|
}
|
|
|
|
// Adjust counters.
|
|
rnDone += nLength;
|
|
nOffset += nLength;
|
|
nBytes -= nLength;
|
|
}
|
|
}
|
|
|
|
// Done.
|
|
return store_E_None;
|
|
}
|
|
|
|
/*
|
|
* writeAt.
|
|
*/
|
|
storeError OStoreLockBytes::writeAt (
|
|
sal_uInt32 nOffset,
|
|
const void *pBuffer,
|
|
sal_uInt32 nBytes,
|
|
sal_uInt32 &rnDone)
|
|
{
|
|
rnDone = 0;
|
|
|
|
if (!m_xManager.is())
|
|
return store_E_InvalidAccess;
|
|
if (!m_bWriteable)
|
|
return store_E_AccessViolation;
|
|
|
|
if (!pBuffer)
|
|
return store_E_InvalidParameter;
|
|
if (!nBytes)
|
|
return store_E_None;
|
|
|
|
// Acquire exclusive access.
|
|
osl::MutexGuard aGuard (*m_xManager);
|
|
|
|
// Write data.
|
|
OStoreDirectoryPageObject aPage (m_xNode.get());
|
|
const sal_uInt8 *pData = (const sal_uInt8*)pBuffer;
|
|
|
|
storeError eErrCode = store_E_None;
|
|
while (nBytes > 0)
|
|
{
|
|
// Determine 'Offset' scope.
|
|
inode::ChunkScope eScope = m_xNode->scope (nOffset);
|
|
if (eScope == inode::SCOPE_INTERNAL)
|
|
{
|
|
// Write to inode page (internal scope).
|
|
inode::ChunkDescriptor aDescr (
|
|
nOffset, m_xNode->capacity());
|
|
|
|
sal_uInt32 nLength = sal_uInt32(aDescr.m_nLength);
|
|
nLength = SAL_MIN(nLength, nBytes);
|
|
|
|
memcpy (
|
|
&m_xNode->m_pData[aDescr.m_nOffset],
|
|
&pData[rnDone], nLength);
|
|
|
|
// Mark inode dirty.
|
|
aPage.touch();
|
|
|
|
// Adjust counters.
|
|
rnDone += nLength;
|
|
nOffset += nLength;
|
|
nBytes -= nLength;
|
|
|
|
// Adjust data length.
|
|
if (aPage.dataLength() < nOffset)
|
|
aPage.dataLength (nOffset);
|
|
}
|
|
else
|
|
{
|
|
// Write to data page (external scope).
|
|
OStoreDataPageObject aData;
|
|
|
|
inode::ChunkDescriptor aDescr (
|
|
nOffset - m_xNode->capacity(), OStoreDataPageData::capacity(m_xNode->m_aDescr)); // @@@
|
|
|
|
sal_uInt32 nLength = sal_uInt32(aDescr.m_nLength);
|
|
if ((aDescr.m_nOffset > 0) || (nBytes < nLength))
|
|
{
|
|
// Unaligned. Need to load/create data page.
|
|
// @@@ loadOrCreate()
|
|
eErrCode = aPage.read (aDescr.m_nPage, aData, *m_xManager);
|
|
if (eErrCode != store_E_None)
|
|
{
|
|
if (eErrCode != store_E_NotExists)
|
|
return eErrCode;
|
|
|
|
eErrCode = aData.construct<data>(m_xManager->allocator());
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
}
|
|
}
|
|
|
|
PageHolderObject< data > xData (aData.makeHolder<data>());
|
|
if (!xData.is())
|
|
{
|
|
eErrCode = aData.construct<data>(m_xManager->allocator());
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
xData = aData.makeHolder<data>();
|
|
}
|
|
|
|
// Modify data page.
|
|
nLength = SAL_MIN(nLength, nBytes);
|
|
memcpy (
|
|
&xData->m_pData[aDescr.m_nOffset],
|
|
&pData[rnDone], nLength);
|
|
|
|
// Save data page.
|
|
eErrCode = aPage.write (aDescr.m_nPage, aData, *m_xManager);
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
|
|
// Adjust counters.
|
|
rnDone += nLength;
|
|
nOffset += nLength;
|
|
nBytes -= nLength;
|
|
|
|
// Adjust data length.
|
|
if (aPage.dataLength() < nOffset)
|
|
aPage.dataLength (nOffset);
|
|
}
|
|
}
|
|
|
|
// Check for modified inode.
|
|
if (aPage.dirty())
|
|
return m_xManager->saveObjectAt (aPage, aPage.location());
|
|
else
|
|
return store_E_None;
|
|
}
|
|
|
|
/*
|
|
* flush.
|
|
*/
|
|
storeError OStoreLockBytes::flush (void)
|
|
{
|
|
if (!m_xManager.is())
|
|
return store_E_InvalidAccess;
|
|
|
|
return m_xManager->flush();
|
|
}
|
|
|
|
/*
|
|
* setSize.
|
|
*/
|
|
storeError OStoreLockBytes::setSize (sal_uInt32 nSize)
|
|
{
|
|
if (!m_xManager.is())
|
|
return store_E_InvalidAccess;
|
|
if (!m_bWriteable)
|
|
return store_E_AccessViolation;
|
|
|
|
// Acquire exclusive access.
|
|
osl::MutexGuard aGuard (*m_xManager);
|
|
|
|
// Determine current length.
|
|
OStoreDirectoryPageObject aPage (m_xNode.get());
|
|
sal_uInt32 nDataLen = aPage.dataLength();
|
|
|
|
if (nSize == nDataLen)
|
|
return store_E_None;
|
|
|
|
if (nSize < nDataLen)
|
|
{
|
|
// Truncate.
|
|
storeError eErrCode = store_E_None;
|
|
|
|
// Determine 'Size' scope.
|
|
inode::ChunkScope eSizeScope = m_xNode->scope (nSize);
|
|
if (eSizeScope == inode::SCOPE_INTERNAL)
|
|
{
|
|
// Internal 'Size' scope. Determine 'Data' scope.
|
|
inode::ChunkScope eDataScope = m_xNode->scope (nDataLen);
|
|
if (eDataScope == inode::SCOPE_EXTERNAL)
|
|
{
|
|
// External 'Data' scope. Truncate all external data pages.
|
|
eErrCode = aPage.truncate (0, *m_xManager);
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
}
|
|
|
|
// Truncate internal data page.
|
|
inode::ChunkDescriptor aDescr (nSize, m_xNode->capacity());
|
|
memset (
|
|
&(m_xNode->m_pData[aDescr.m_nOffset]),
|
|
0, aDescr.m_nLength);
|
|
}
|
|
else
|
|
{
|
|
// External 'Size' scope. Truncate external data pages.
|
|
inode::ChunkDescriptor aDescr (
|
|
nSize - m_xNode->capacity(), OStoreDataPageData::capacity(m_xNode->m_aDescr)); // @@@
|
|
|
|
sal_uInt32 nPage = aDescr.m_nPage;
|
|
if (aDescr.m_nOffset) nPage += 1;
|
|
|
|
eErrCode = aPage.truncate (nPage, *m_xManager);
|
|
if (eErrCode != store_E_None)
|
|
return eErrCode;
|
|
}
|
|
}
|
|
|
|
// Set (extended or truncated) size.
|
|
aPage.dataLength (nSize);
|
|
|
|
// Save modified inode.
|
|
return m_xManager->saveObjectAt (aPage, aPage.location());
|
|
}
|
|
|
|
/*
|
|
* stat.
|
|
*/
|
|
storeError OStoreLockBytes::stat (sal_uInt32 &rnSize)
|
|
{
|
|
rnSize = 0;
|
|
|
|
if (!m_xManager.is())
|
|
return store_E_InvalidAccess;
|
|
|
|
OStoreDirectoryPageObject aPage (m_xNode.get());
|
|
rnSize = aPage.dataLength();
|
|
return store_E_None;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|