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sortix--sortix/ext/block.h

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2013-05-23 08:39:54 -04:00
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
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/>.
block.h
Blocks in the filesystem.
*******************************************************************************/
#ifndef BLOCK_H
#define BLOCK_H
class Device;
class Block
{
public:
Block(Device* device, uint32_t block_id);
~Block();
public:
Block* prev_block;
Block* next_block;
Block* prev_hashed;
Block* next_hashed;
Device* device;
size_t reference_count;
uint32_t block_id;
bool dirty;
uint8_t* block_data;
public:
void Refer();
void Unref();
void Sync();
void Dirty();
void Use();
void Unlink();
void Prelink();
};
#endif