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// 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: StoreStructure.cpp
// Purpose:
// Created: 11/12/03
//
// --------------------------------------------------------------------------
#include "Box.h"
#include "StoreStructure.h"
#include "RaidFileRead.h"
#include "RaidFileWrite.h"
#include "RaidFileController.h"
#include "MemLeakFindOn.h"
// --------------------------------------------------------------------------
//
// Function
// Name: StoreStructure::MakeObjectFilename(int64_t, const std::string &, int, std::string &, bool)
// Purpose: Builds the object filename for a given object, given a root. Optionally ensure that the
// directory exists.
// Created: 11/12/03
//
// --------------------------------------------------------------------------
void StoreStructure::MakeObjectFilename(int64_t ObjectID, const std::string &rStoreRoot, int DiscSet, std::string &rFilenameOut, bool EnsureDirectoryExists)
{
const static char *hex = "0123456789abcdef";
// Set output to root string
rFilenameOut = rStoreRoot;
// get the id value from the stored object ID so we can do
// bitwise operations on it.
uint64_t id = (uint64_t)ObjectID;
// get leafname, shift the bits which make up the leafname off
unsigned int leafname(id & STORE_ID_SEGMENT_MASK);
id >>= STORE_ID_SEGMENT_LENGTH;
// build pathname
while(id != 0)
{
// assumes that the segments are no bigger than 8 bits
int v = id & STORE_ID_SEGMENT_MASK;
rFilenameOut += hex[(v & 0xf0) >> 4];
rFilenameOut += hex[v & 0xf];
rFilenameOut += DIRECTORY_SEPARATOR_ASCHAR;
// shift the bits we used off the pathname
id >>= STORE_ID_SEGMENT_LENGTH;
}
// Want to make sure this exists?
if(EnsureDirectoryExists)
{
if(!RaidFileRead::DirectoryExists(DiscSet, rFilenameOut))
{
// Create it
RaidFileWrite::CreateDirectory(DiscSet, rFilenameOut, true /* recusive */);
}
}
// append the filename
rFilenameOut += 'o';
rFilenameOut += hex[(leafname & 0xf0) >> 4];
rFilenameOut += hex[leafname & 0xf];
}
// --------------------------------------------------------------------------
//
// Function
// Name: StoreStructure::MakeWriteLockFilename(const std::string &, int, std::string &)
// Purpose: Generate the on disc filename of the write lock file
// Created: 15/12/03
//
// --------------------------------------------------------------------------
void StoreStructure::MakeWriteLockFilename(const std::string &rStoreRoot, int DiscSet, std::string &rFilenameOut)
{
// Find the disc set
RaidFileController &rcontroller(RaidFileController::GetController());
RaidFileDiscSet &rdiscSet(rcontroller.GetDiscSet(DiscSet));
// Make the filename
std::string writeLockFile(rdiscSet[0] + DIRECTORY_SEPARATOR + rStoreRoot + "write.lock");
// Return it to the caller
rFilenameOut = writeLockFile;
}
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