# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlCore/DiskFile.hpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #ifndef DiskFile_INCLUDE_ONCE
    00033 #define DiskFile_INCLUDE_ONCE
    00034
    00035 #include <vlCore/VirtualFile.hpp>
    00036 #include <vlCore/DiskDirectory.hpp>
    00037
    00038 #if defined(VL_PLATFORM_LINUX) || defined(VL_PLATFORM_MACOSX)
    00039   #include <sys/types.h>
    00040   #include <sys/stat.h>
    00041   #include <unistd.h>
    00042 #endif
    00043
    00044 namespace vl
    00045 {
    00046   class DiskDirectory;
    00047 //---------------------------------------------------------------------------
    00048 // DiskFile
    00049 //---------------------------------------------------------------------------
    00063   class VLCORE_EXPORT DiskFile: public VirtualFile
    00064   {
    00065     VL_INSTRUMENT_CLASS(vl::DiskFile, VirtualFile)
    00066
    00067     friend class DiskDirectory;
    00068   protected:
    00069     DiskFile(const DiskFile& other): VirtualFile(other) {}
    00070
    00071   public:
    00072     DiskFile(const String& path = String());
    00073
    00074     ~DiskFile();
    00075
    00077     bool open(const String& path, EOpenMode mode);
    00078
    00079     virtual bool open(EOpenMode mode);
    00080
    00081     virtual bool isOpen() const;
    00082
    00083     virtual void close();
    00084
    00086     virtual long long size() const;
    00087
    00088     virtual bool exists() const;
    00089
    00090     DiskFile& operator=(const DiskFile& other) { close(); super::operator=(other); return *this; }
    00091
    00092     virtual ref<VirtualFile> clone() const;
    00093
    00094   protected:
    00095     virtual long long read_Implementation(void* buffer, long long byte_count);
    00096
    00097     virtual long long write_Implementation(const void* buffer, long long byte_count);
    00098
    00099     virtual long long position_Implementation() const;
    00100
    00101     virtual bool seekSet_Implementation(long long offset);
    00102
    00103     ref<DiskDirectory> parentDir() const;
    00104
    00105   protected:
    00106     #if defined(VL_PLATFORM_WINDOWS)
    00107       HANDLE mHandle;
    00108     #else
    00109       FILE*  mHandle;
    00110     #endif
    00111
    00112   protected:
    00113   };
    00114
    00115 }
    00116
    00117 #endif

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:27.
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