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sortix--sortix/ext/filesystem.h
2013-12-17 14:30:46 +01:00

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1.6 KiB
C++

/*******************************************************************************
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/>.
filesystem.h
Filesystem.
*******************************************************************************/
#ifndef FILESYSTEM_H
#define FILESYSTEM_H
class BlockGroup;
class Device;
class Inode;
class Filesystem
{
public:
Filesystem(Device* device);
~Filesystem();
public:
struct ext_superblock* sb;
Block* sb_block;
Device* device;
BlockGroup** block_groups;
uint32_t block_size;
uint32_t inode_size;
uint32_t num_blocks;
uint32_t num_groups;
uint32_t num_inodes;
Inode* mru_inode;
Inode* lru_inode;
time_t mtime_realtime;
time_t mtime_monotonic;
bool dirty;
public:
BlockGroup* GetBlockGroup(uint32_t group_id);
Inode* GetInode(uint32_t inode_id);
uint32_t AllocateBlock(BlockGroup* preferred = NULL);
uint32_t AllocateInode(BlockGroup* preferred = NULL);
void FreeBlock(uint32_t block_id);
void FreeInode(uint32_t inode_id);
void Dirty();
void Sync();
};
#endif