blocxx

FileBuf.hpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2005, Quest Software, Inc. All rights reserved.
00003 * Copyright (C) 2006, Novell, Inc. All rights reserved.
00004 * 
00005 * Redistribution and use in source and binary forms, with or without
00006 * modification, are permitted provided that the following conditions are met:
00007 * 
00008 *     * Redistributions of source code must retain the above copyright notice,
00009 *       this list of conditions and the following disclaimer.
00010 *     * Redistributions in binary form must reproduce the above copyright
00011 *       notice, this list of conditions and the following disclaimer in the
00012 *       documentation and/or other materials provided with the distribution.
00013 *     * Neither the name of 
00014 *       Quest Software, Inc., 
00015 *       nor Novell, Inc., 
00016 *       nor the names of its contributors or employees may be used to 
00017 *       endorse or promote products derived from this software without 
00018 *       specific prior written permission.
00019 * 
00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00021 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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00026 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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00032 
00033 
00038 #ifndef BLOCXX_FILE_BUF_HPP_INCLUDE_GUARD_
00039 #define BLOCXX_FILE_BUF_HPP_INCLUDE_GUARD_
00040 #include "blocxx/BLOCXX_config.h"
00041 
00042 #include "blocxx/CommonFwd.hpp"
00043 #include "blocxx/BaseStreamBuffer.hpp"
00044 #include "blocxx/AutoDescriptor.hpp"
00045 #include "blocxx/Types.hpp"
00046 #include <cstdio>
00047 
00048 namespace BLOCXX_NAMESPACE
00049 {
00050 
00058 class FileBuf : public BaseStreamBuffer
00059 {
00060 public:
00061 
00066    FileBuf();
00067 
00071    ~FileBuf();
00072 
00077    bool isOpen() const;
00078 
00085    FileBuf* open(FILE* fp);
00086 
00093    FileBuf* open(AutoDescriptor fd);
00094 #if 0
00095 
00101    FileBuf* open(const File& f);
00102 #endif
00103 
00119    FileBuf* open(const char* path, std::ios_base::openmode mode, mode_t permissions = 0666);
00120 
00129    FileBuf* close();
00130 
00131 private:
00139    virtual int buffer_to_device(const char* c, int n);
00149    virtual int buffer_from_device(char* c, int n);
00150 
00158    std::ios_base::openmode posixModeToCppMode(int posixMode);
00159 
00167    int cppModeToPOSIXMode(std::ios_base::openmode cppMode);
00168 
00176    const char* cppModeToCMode(std::ios_base::openmode cppMode);
00177 
00178    // prohibit copying and assigning
00179    // NO IMPLEMENTATION
00180    FileBuf(const FileBuf& arg);
00181    FileBuf& operator=(const FileBuf& arg);
00182 
00183    ::FILE* m_file;
00184 };
00185 
00186 } // end namespace BLOCXX_NAMESPACE
00187 
00188 #endif
00189