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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef Filename_H
#define Filename_H
//===========================================================================
//
// .DESCRIPTION
// Takes a 128 bits value (done as a array of four longs) and
// makes a filename out of it acording the following schema
// Bits 0-31 T
// Bits 32-63 F
// Bits 64-95 S
// Bits 96-103 P
// Bits 104-111 D
// Bits 112-119 File Type
// Bits 120-127 Version number of Filename
//
// T, is used to find/create a directory. If T = 0xFFFF then the
// file is on top level. In that case the F is of no relevance.
// F, same as T.
// S, is used to find/create a filename. If S= 0xFFFF then it is ignored.
// P, same as S
// D, is used to find/create the root directory, this is the
// directory before the blockname. If D= 0xFF then it is ignored.
// File Type
// 0 => .Data
// 1 => .FragLog
// 2 => .LocLog
// 3 => .FragList
// 4 => .TableList
// 5 => .SchemaLog
// 6 => .sysfile
// 15=> ignored
// Version number of Filename, current version is 0x1, must be
// used for the this style of options.
//
//
//===========================================================================
#include <ndb_global.h>
#include <kernel_types.h>
class Filename
{
public:
// filenumber is 64 bits but is split in to 4 32bits words
Filename();
~Filename();
void set(BlockReference blockReference,
const Uint32 filenumber[4], bool dir = false);
const char* baseDirectory() const;
const char* directory(int level);
int levels() const;
const char* c_str() const;
void init(Uint32 nodeid, const char * fileSystemPath,
const char * backupDirPath);
private:
int theLevelDepth;
char theName[PATH_MAX];
char theFileSystemDirectory[PATH_MAX];
char theBackupDirectory[PATH_MAX];
char *theBaseDirectory;
char theDirectory[PATH_MAX];
};
// inline methods
inline const char* Filename::c_str() const{
return theName;
}
inline const char* Filename::baseDirectory() const{
return theBaseDirectory;
}
inline int Filename::levels() const{
return theLevelDepth;
}
#endif
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