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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: RaidFileController.h
// Purpose: Controls config and daemon comms for RaidFile classes
// Created: 2003/07/08
//
// --------------------------------------------------------------------------
/* NOTE: will log to local5: include a line like
local5.info /var/log/raidfile
in /etc/syslog.conf
*/
#ifndef RAIDFILECONTROLLER__H
#define RAIDFILECONTROLLER__H
#include <string>
#include <vector>
// --------------------------------------------------------------------------
//
// Class
// Name: RaidFileDiscSet
// Purpose: Describes a set of paritions for RAID like files.
// Use as list of directories containing the files.
// Created: 2003/07/08
//
// --------------------------------------------------------------------------
class RaidFileDiscSet : public std::vector<std::string>
{
public:
RaidFileDiscSet(int SetID, unsigned int BlockSize)
: mSetID(SetID),
mBlockSize(BlockSize)
{
}
RaidFileDiscSet(const RaidFileDiscSet &rToCopy)
: std::vector<std::string>(rToCopy),
mSetID(rToCopy.mSetID),
mBlockSize(rToCopy.mBlockSize)
{
}
~RaidFileDiscSet()
{
}
int GetSetID() const {return mSetID;}
int GetSetNumForWriteFiles(const std::string &rFilename) const;
unsigned int GetBlockSize() const {return mBlockSize;}
// Is this disc set a non-RAID disc set? (ie files never get transformed to raid storage)
bool IsNonRaidSet() const {return 1 == size();}
private:
int mSetID;
unsigned int mBlockSize;
};
class _RaidFileController; // compiler warning avoidance
// --------------------------------------------------------------------------
//
// Class
// Name: RaidFileController
// Purpose: Manages the configuration of the RaidFile system, handles
// communication with the daemon.
// Created: 2003/07/08
//
// --------------------------------------------------------------------------
class RaidFileController
{
friend class _RaidFileController; // to avoid compiler warning
private:
RaidFileController();
RaidFileController(const RaidFileController &rController);
public:
~RaidFileController();
public:
void Initialise(const std::string& rConfigFilename =
"/etc/box/raidfile.conf");
int GetNumDiscSets() {return mSetList.size();}
// --------------------------------------------------------------------------
//
// Function
// Name: RaidFileController::GetController()
// Purpose: Gets the one and only controller object.
// Created: 2003/07/08
//
// --------------------------------------------------------------------------
static RaidFileController &GetController() {return mController;}
RaidFileDiscSet &GetDiscSet(unsigned int DiscSetNum);
static std::string DiscSetPathToFileSystemPath(unsigned int DiscSetNum, const std::string &rFilename, int DiscOffset);
private:
std::vector<RaidFileDiscSet> mSetList;
static RaidFileController mController;
};
#endif // RAIDFILECONTROLLER__H
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