usbloadergx/source/libs/libext2fs/ext2_internal.h
dimok321 2213b45351 For all the Linux lovers:
*Added support for EXT2/EXT3/EXT4 file systems:
   You can boot games from this file systems too now. Works the same way as FAT32/NTFS.
   Just put your games into drive:/wbfs/ with the known supported folder names.
2010-12-09 20:57:35 +00:00

103 lines
3.4 KiB
C

/**
* ext2_internal.h
*
* Copyright (c) 2009 Rhys "Shareese" Koedijk
* Copyright (c) 2010 Dimok
*
* This program/include file 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/include file 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 EXT2_INTERNAL_H_
#define EXT2_INTERNAL_H_
#include <gccore.h>
#include <ogc/disc_io.h>
#include <sys/iosupport.h>
#include "ext2fs.h"
#include "ext2_fs.h"
#include "mem_allocate.h"
#ifdef DEBUG_GEKKO
#define ext2_log_trace printf
#else
#define ext2_log_trace(...)
#endif
typedef struct _ext2_inode_t
{
struct ext2_inode ni;
ext2_ino_t ino;
bool dirty;
} ext2_inode_t;
/**
* ext2_vd - EXT2 volume descriptor
*/
typedef struct _ext2_vd
{
io_channel io; /* EXT device handle */
ext2_filsys fs; /* EXT volume handle */
mutex_t lock; /* Volume lock mutex */
ext2_inode_t *cwd_ni; /* Current directory */
struct _ext2_dir_state *firstOpenDir; /* The start of a FILO linked list of currently opened directories */
struct _ext2_file_state *firstOpenFile; /* The start of a FILO linked list of currently opened files */
u16 openDirCount; /* The total number of directories currently open in this volume */
u16 openFileCount; /* The total number of files currently open in this volume */
ext2_ino_t root; /* Root node */
} ext2_vd;
typedef enum {
EXT2_UPDATE_ATIME = 0x01,
EXT2_UPDATE_MTIME = 0x02,
EXT2_UPDATE_CTIME = 0x04,
EXT2_UPDATE_AMTIME = EXT2_UPDATE_ATIME | EXT2_UPDATE_MTIME,
EXT2_UPDATE_ACTIME = EXT2_UPDATE_ATIME | EXT2_UPDATE_CTIME,
EXT2_UPDATE_MCTIME = EXT2_UPDATE_MTIME | EXT2_UPDATE_CTIME,
EXT2_UPDATE_AMCTIME = EXT2_UPDATE_ATIME | EXT2_UPDATE_MTIME | EXT2_UPDATE_CTIME,
} ext2_time_update_flags;
/* Lock volume */
static inline void ext2Lock (ext2_vd *vd)
{
LWP_MutexLock(vd->lock);
}
/* Unlock volume */
static inline void ext2Unlock (ext2_vd *vd)
{
LWP_MutexUnlock(vd->lock);
}
const char *ext2RealPath (const char *path);
int ext2InitVolume (ext2_vd *vd);
void ext2DeinitVolume (ext2_vd *vd);
ext2_vd *ext2GetVolume (const char *path);
int ext2AddDevice (const char *name, void *deviceData);
void ext2RemoveDevice (const char *path);
const devoptab_t *ext2GetDevice (const char *path);
ext2_inode_t *ext2OpenEntry (ext2_vd *vd, const char *path);
void ext2CloseEntry (ext2_vd *vd, ext2_inode_t * ni);
int ext2Stat (ext2_vd *vd, ext2_inode_t * ni, struct stat *st);
int ext2Sync (ext2_vd *vd, ext2_inode_t * ni);
ext2_inode_t *ext2Create (ext2_vd *vd, const char *path, mode_t type, const char *target);
int ext2Link (ext2_vd *vd, const char *old_path, const char *new_path);
int ext2Unlink (ext2_vd *vd, const char *path);
void ext2UpdateTimes(ext2_vd *vd, ext2_inode_t *ni, ext2_time_update_flags mask);
#endif