LinnFileSystem.h

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/*
 * Copyright (C) 2009 Niek Linnenbank
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __FILESYSTEM_LINN_FILESYSTEM_H
#define __FILESYSTEM_LINN_FILESYSTEM_H
 
#include <FileSystemServer.h>
#include <FileSystemMessage.h>
#include <Storage.h>
#include <Types.h>
#include <Vector.h>
#include <HashTable.h>
#include "LinnSuperBlock.h"
#include "LinnInode.h"
#include "LinnGroup.h"
 
#define LINNFS_ROOTFS_FILE "./rootfs.linn"
 
#define LINN_MIN_BLOCK_SIZE 1024
 
#define LINN_MAX_BLOCK_SIZE 4096
 
#ifndef __HOST__
 
class LinnFileSystem : public FileSystemServer
{
  public:
 
    LinnFileSystem(const char *path, Storage *storage);
 
    LinnSuperBlock * getSuperBlock()
    {
        return &super;
    }
 
    Storage * getStorage()
    {
        return storage;
    }
 
    LinnInode * getInode(u32 inodeNum);
 
    LinnGroup * getGroup(u32 groupNum);
 
    LinnGroup * getGroupByInode(u32 inodeNum);
 
    u64 getOffsetRange(const LinnInode *inode,
                       const u32 blk,
                       Size & numContiguous);
 
  private:
 
    void notSupportedHandler(FileSystemMessage *msg);
 
  private:
 
    Storage *storage;
 
    LinnSuperBlock super;
 
    Vector<LinnGroup *> *groups;
 
    HashTable<u32, LinnInode *> inodes;
};
 
#endif /* __HOST__ */
 
#endif /* __FILESYSTEM_LINN_FILESYSTEM_H */