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/* -*- 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 .
*/
#include "stordir.hxx"
#include <sal/types.h>
#include <rtl/textcvt.h>
#include <rtl/ref.hxx>
#include <rtl/ustring.h>
#include <osl/mutex.hxx>
#include <store/types.h>
#include "storbase.hxx"
#include "stordata.hxx"
#include "storpage.hxx"
using namespace store;
/*========================================================================
*
* OStore... internals.
*
*======================================================================*/
/*
* convertTextToUnicode.
*/
static sal_Size convertTextToUnicode (
rtl_TextToUnicodeConverter hConverter,
const char *pSrcBuffer, sal_Size nSrcLength,
sal_Unicode *pDstBuffer, sal_Size nDstLength)
{
sal_uInt32 nCvtInfo = 0;
sal_Size nCvtBytes = 0;
return rtl_convertTextToUnicode (
hConverter, nullptr,
pSrcBuffer, nSrcLength,
pDstBuffer, nDstLength,
OSTRING_TO_OUSTRING_CVTFLAGS,
&nCvtInfo, &nCvtBytes);
}
/*========================================================================
*
* OStoreDirectory_Impl implementation.
*
*======================================================================*/
const sal_uInt32 OStoreDirectory_Impl::m_nTypeId(0x89191107);
/*
* OStoreDirectory_Impl.
*/
OStoreDirectory_Impl::OStoreDirectory_Impl()
: m_xManager (),
m_aDescr (0, 0, 0),
m_nPath (0),
m_hTextCvt (nullptr)
{}
/*
* ~OStoreDirectory_Impl.
*/
OStoreDirectory_Impl::~OStoreDirectory_Impl()
{
if (m_xManager.is())
{
if (m_aDescr.m_nAddr != STORE_PAGE_NULL)
m_xManager->releasePage (m_aDescr);
}
rtl_destroyTextToUnicodeConverter (m_hTextCvt);
}
/*
* isKindOf.
*/
bool OStoreDirectory_Impl::isKindOf (sal_uInt32 nTypeId)
{
return (nTypeId == m_nTypeId);
}
/*
* create.
*/
storeError OStoreDirectory_Impl::create (
OStorePageManager *pManager,
rtl_String const *pPath,
rtl_String const *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_ISDIR,
pPath, pName, eMode);
if (eErrCode != store_E_None)
return eErrCode;
if (!(aPage.attrib() & STORE_ATTRIB_ISDIR))
return store_E_NotDirectory;
inode_holder_type xNode (aPage.get());
eErrCode = xManager->acquirePage (xNode->m_aDescr, storeAccessMode::ReadOnly);
if (eErrCode != store_E_None)
return eErrCode;
// Evaluate iteration path.
m_nPath = aPage.path();
m_nPath = rtl_crc32 (m_nPath, "/", 1);
// Save page manager, and descriptor.
m_xManager = xManager;
m_aDescr = xNode->m_aDescr;
return store_E_None;
}
/*
* iterate.
*/
storeError OStoreDirectory_Impl::iterate (storeFindData &rFindData)
{
if (!m_xManager.is())
return store_E_InvalidAccess;
storeError eErrCode = store_E_NoMoreFiles;
if (!rFindData.m_nReserved)
return eErrCode;
// Acquire exclusive access.
osl::MutexGuard aGuard (*m_xManager);
// Check TextConverter.
if (m_hTextCvt == nullptr)
m_hTextCvt = rtl_createTextToUnicodeConverter(RTL_TEXTENCODING_UTF8);
// Setup iteration key.
OStorePageKey aKey (rFindData.m_nReserved, m_nPath);
// Iterate.
for (;;)
{
OStorePageLink aLink;
eErrCode = m_xManager->iterate (aKey, aLink, rFindData.m_nAttrib);
if (eErrCode != store_E_None || aKey.m_nHigh != store::htonl(m_nPath))
break;
if (!(rFindData.m_nAttrib & STORE_ATTRIB_ISLINK))
{
// Load page.
OStoreDirectoryPageObject aPage;
eErrCode = m_xManager->loadObjectAt (aPage, aLink.location());
if (eErrCode == store_E_None)
{
inode_holder_type xNode (aPage.get());
// Setup FindData.
char *p = xNode->m_aNameBlock.m_pData;
sal_Int32 n = rtl_str_getLength (p);
sal_Int32 k = rFindData.m_nLength;
n = convertTextToUnicode (
m_hTextCvt, p, n,
rFindData.m_pszName, STORE_MAXIMUM_NAMESIZE - 1);
if (k > n)
{
k = (k - n) * sizeof(sal_Unicode);
memset (&rFindData.m_pszName[n], 0, k);
}
rFindData.m_nLength = n;
rFindData.m_nAttrib |= aPage.attrib();
// Leave.
rFindData.m_nReserved = store::ntohl(aKey.m_nLow);
return store_E_None;
}
}
if (aKey.m_nLow == 0)
break;
aKey.m_nLow = store::htonl(store::ntohl(aKey.m_nLow) - 1);
}
// Finished.
memset (&rFindData, 0, sizeof (storeFindData));
return store_E_NoMoreFiles;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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