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65acdce54c
Removed usage of std::auto_ptr. opencascade::std workarounds for VS2008 have been dropped, when possible. OCCT_NO_RVALUE_REFERENCE workaround for VS2008 has been removed.
105 lines
4.4 KiB
C++
105 lines
4.4 KiB
C++
// Copyright (c) 2021 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <OSD_CachedFileSystem.hxx>
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#include <OSD_OpenFile.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(OSD_CachedFileSystem, OSD_FileSystem)
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//=======================================================================
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// function : OSD_CachedFileSystem
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// purpose :
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//=======================================================================
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OSD_CachedFileSystem::OSD_CachedFileSystem (const Handle(OSD_FileSystem)& theLinkedFileSystem)
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: myLinkedFS (!theLinkedFileSystem.IsNull() ? theLinkedFileSystem : OSD_FileSystem::DefaultFileSystem())
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{
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//
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}
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//=======================================================================
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// function : IsSupportedPath
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// purpose :
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//=======================================================================
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Standard_Boolean OSD_CachedFileSystem::IsSupportedPath (const TCollection_AsciiString& theUrl) const
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{
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return myLinkedFS->IsSupportedPath (theUrl);
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}
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//=======================================================================
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// function : IsOpenIStream
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// purpose :
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//=======================================================================
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Standard_Boolean OSD_CachedFileSystem::IsOpenIStream (const std::shared_ptr<std::istream>& theStream) const
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{
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return myLinkedFS->IsOpenIStream (theStream);
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}
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//=======================================================================
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// function : IsOpenOStream
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// purpose :
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//=======================================================================
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Standard_Boolean OSD_CachedFileSystem::IsOpenOStream (const std::shared_ptr<std::ostream>& theStream) const
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{
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return myLinkedFS->IsOpenOStream (theStream);
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}
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//=======================================================================
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// function : OpenIStream
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// purpose :
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//=======================================================================
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std::shared_ptr<std::istream> OSD_CachedFileSystem::OpenIStream (const TCollection_AsciiString& theUrl,
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const std::ios_base::openmode theParams,
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const int64_t theOffset,
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const std::shared_ptr<std::istream>& /*theOldStream*/)
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{
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if (myStream.Url != theUrl)
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{
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myStream.Url = theUrl;
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myStream.Reset();
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}
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myStream.Stream = myLinkedFS->OpenIStream (theUrl, theParams, theOffset, myStream.Stream);
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return myStream.Stream;
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}
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//=======================================================================
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// function : OpenOStream
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// purpose :
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//=======================================================================
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std::shared_ptr<std::ostream> OSD_CachedFileSystem::OpenOStream (const TCollection_AsciiString& theUrl,
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const std::ios_base::openmode theMode)
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{
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return myLinkedFS->OpenOStream (theUrl, theMode);
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}
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//=======================================================================
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// function : OpenStreamBuffer
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// purpose :
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//=======================================================================
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std::shared_ptr<std::streambuf> OSD_CachedFileSystem::OpenStreamBuffer (const TCollection_AsciiString& theUrl,
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const std::ios_base::openmode theMode,
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const int64_t theOffset,
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int64_t* theOutBufSize)
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{
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if ((theMode & std::ios::out) == std::ios::out)
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{
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return myLinkedFS->OpenStreamBuffer (theUrl, theMode, theOffset, theOutBufSize);
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}
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if (myStream.Url != theUrl)
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{
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myStream.Url = theUrl;
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myStream.Reset();
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}
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myStream.StreamBuf = myLinkedFS->OpenStreamBuffer (theUrl, theMode, theOffset, theOutBufSize);
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return myStream.StreamBuf;
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}
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