diff options
author | Reinhard Tartler <siretart@tauware.de> | 2007-02-14 09:01:45 +0100 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2007-02-14 09:01:45 +0100 |
commit | aa2943800f9c00823720af98da036813ebf5cd2c (patch) | |
tree | 099cc0264d32a36ab89aa3f48cbf34612c3cd225 /lib/raidfile/RaidFileRead.h |
initial commit
Diffstat (limited to 'lib/raidfile/RaidFileRead.h')
-rw-r--r-- | lib/raidfile/RaidFileRead.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/lib/raidfile/RaidFileRead.h b/lib/raidfile/RaidFileRead.h new file mode 100644 index 00000000..2648e1e1 --- /dev/null +++ b/lib/raidfile/RaidFileRead.h @@ -0,0 +1,110 @@ +// distribution boxbackup-0.10 (svn version: 494) +// +// Copyright (c) 2003 - 2006 +// Ben Summers and contributors. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// 3. All use of this software and associated advertising materials must +// display the following acknowledgment: +// This product includes software developed by Ben Summers. +// 4. The names of the Authors may not be used to endorse or promote +// products derived from this software without specific prior written +// permission. +// +// [Where legally impermissible the Authors do not disclaim liability for +// direct physical injury or death caused solely by defects in the software +// unless it is modified by a third party.] +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR +// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, +// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +// +// +// -------------------------------------------------------------------------- +// +// File +// Name: RaidFileRead.h +// Purpose: Read Raid like Files +// Created: 2003/07/13 +// +// -------------------------------------------------------------------------- + +#ifndef RAIDFILEREAD__H +#define RAIDFILEREAD__H + +#include <string> +#include <memory> +#include <vector> + +#include "IOStream.h" + +class RaidFileDiscSet; + + +// -------------------------------------------------------------------------- +// +// Class +// Name: RaidFileRead +// Purpose: Read RAID like files +// Created: 2003/07/13 +// +// -------------------------------------------------------------------------- +class RaidFileRead : public IOStream +{ +protected: + RaidFileRead(int SetNumber, const std::string &Filename); +public: + virtual ~RaidFileRead(); +private: + RaidFileRead(const RaidFileRead &rToCopy); + +public: + // Open a raid file + static std::auto_ptr<RaidFileRead> Open(int SetNumber, const std::string &Filename, int64_t *pRevisionID = 0, int BufferSizeHint = 4096); + + // Extra info + virtual pos_type GetFileSize() const = 0; + + // Utility functions + static bool FileExists(int SetNumber, const std::string &rFilename, int64_t *pRevisionID = 0); + static bool DirectoryExists(const RaidFileDiscSet &rSet, const std::string &rDirName); + static bool DirectoryExists(int SetNumber, const std::string &rDirName); + enum + { + DirReadType_FilesOnly = 0, + DirReadType_DirsOnly = 1 + }; + static bool ReadDirectoryContents(int SetNumber, const std::string &rDirName, int DirReadType, std::vector<std::string> &rOutput); + + // Common IOStream interface implementation + virtual void Write(const void *pBuffer, int NBytes); + virtual bool StreamClosed(); + virtual pos_type BytesLeftToRead(); + + pos_type GetDiscUsageInBlocks(); + + typedef int64_t FileSizeType; + +protected: + int mSetNumber; + std::string mFilename; +}; + +#endif // RAIDFILEREAD__H + |