117 lines
4.5 KiB
C++
117 lines
4.5 KiB
C++
/**************************************************************************************/
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/* */
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/* Visualization Library */
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/* http://visualizationlibrary.org */
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/* */
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/* Copyright (c) 2005-2020, Michele Bosi */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or without modification, */
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/* are permitted provided that the following conditions are met: */
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/* */
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/* - Redistributions of source code must retain the above copyright notice, this */
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/* list of conditions and the following disclaimer. */
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/* */
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/* - Redistributions in binary form must reproduce the above copyright notice, this */
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/* list of conditions and the following disclaimer in the documentation and/or */
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/* other materials provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */
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/* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */
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/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */
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/* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */
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/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
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/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
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/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/**************************************************************************************/
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#ifndef DiskFile_INCLUDE_ONCE
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#define DiskFile_INCLUDE_ONCE
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#include <vlCore/VirtualFile.hpp>
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#include <vlCore/DiskDirectory.hpp>
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#if defined(VL_PLATFORM_LINUX) || defined(VL_PLATFORM_MACOSX)
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#endif
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namespace vl
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{
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class DiskDirectory;
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//---------------------------------------------------------------------------
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// DiskFile
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//---------------------------------------------------------------------------
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/**
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* A VirtualFile that operates on regular disk files.
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*
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* \sa
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* - VirtualDirectory
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* - DiskDirectory
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* - QtDirectory
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* - MemoryDirectory
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* - ZippedDirectory
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* - FileSystem
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* - VirtualFile
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* - MemoryFile
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* - ZippedFile
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*/
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class VLCORE_EXPORT DiskFile: public VirtualFile
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{
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VL_INSTRUMENT_CLASS(vl::DiskFile, VirtualFile)
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friend class DiskDirectory;
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protected:
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DiskFile(const DiskFile& other): VirtualFile(other) {}
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public:
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DiskFile(const String& path = String());
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~DiskFile();
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//! The specified path is relative to the parent directory. See setPhysicalPath().
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bool open(const String& path, EOpenMode mode);
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virtual bool open(EOpenMode mode);
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virtual bool isOpen() const;
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virtual void close();
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//! Returns the file size in bytes or -1 on error.
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virtual long long size() const;
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virtual bool exists() const;
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DiskFile& operator=(const DiskFile& other) { close(); super::operator=(other); return *this; }
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virtual ref<VirtualFile> clone() const;
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protected:
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virtual long long read_Implementation(void* buffer, long long byte_count);
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virtual long long write_Implementation(const void* buffer, long long byte_count);
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virtual long long position_Implementation() const;
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virtual bool seekSet_Implementation(long long offset);
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protected:
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#if defined(VL_PLATFORM_WINDOWS)
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HANDLE mHandle;
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#else
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FILE* mHandle;
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#endif
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protected:
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};
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}
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#endif
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