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Diffstat (limited to 'store/source/stordir.cxx')
| -rw-r--r-- | store/source/stordir.cxx | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/store/source/stordir.cxx b/store/source/stordir.cxx new file mode 100644 index 0000000000..26e60910c0 --- /dev/null +++ b/store/source/stordir.cxx @@ -0,0 +1,184 @@ +/* -*- 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; + +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); +} + +const sal_uInt32 OStoreDirectory_Impl::m_nTypeId(0x89191107); + +OStoreDirectory_Impl::OStoreDirectory_Impl() + : m_aDescr (0, 0, 0), + m_nPath (0), + m_hTextCvt (nullptr) +{} + +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); +} + +bool OStoreDirectory_Impl::isKindOf (sal_uInt32 nTypeId) +{ + return (nTypeId == m_nTypeId); +} + +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; +} + +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: */ |