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// distribution boxbackup-0.11rc2 (svn version: 2072)
//
// Copyright (c) 2003 - 2008
// 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
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