* Copyright 2001-2010, Haiku Inc. All rights reserved.
* This file may be used under the terms of the MIT License.
*
* Authors:
* Janito V. Ferreira Filho
*/
#ifndef INODEALLOCATOR_H
#define INODEALLOCATOR_H
#include <lock.h>
#include "ext2.h"
#include "Transaction.h"
class Inode;
class Volume;
class InodeAllocator {
public:
InodeAllocator(Volume* volume);
virtual ~InodeAllocator();
virtual status_t New(Transaction& transaction, Inode* parent,
int32 mode, ino_t& id);
virtual status_t Free(Transaction& transaction, ino_t id,
bool isDirectory);
private:
status_t _Allocate(Transaction& transaction,
uint32 preferredBlockGroup, bool isDirectory,
ino_t& id);
status_t _AllocateInGroup(Transaction& transaction,
uint32 blockGroup, bool isDirectory,
ino_t& id, uint32 numInodes);
status_t _MarkInBitmap(Transaction& transaction,
fsblock_t bitmapBlock, uint32 blockGroup,
uint32 numInodes, uint32& pos, uint32& checksum);
status_t _UnmarkInBitmap(Transaction& transaction,
fsblock_t bitmapBlock, uint32 numInodes, ino_t id,
uint32& checksum);
status_t _InitGroup(Transaction& transaction,
ext2_block_group* group, fsblock_t bitmapBlock,
uint32 numInodes);
void _SetInodeBitmapChecksum(ext2_block_group* group,
uint32 checksum);
Volume* fVolume;
mutex fLock;
};
#endif
