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Typo fix. 

2003/05/25 21:04:53+01:00 cantab.net!aia21
Add allocation and deallocation of devices.

2003/05/25 20:40:26+01:00 cantab.net!aia21
fix typos.

2003/05/25 15:40:47+01:00 cantab.net!aia21

(Logical change 1.136)
edge.strict_endians
cantab.net!aia21 2003-05-26 12:58:41 +00:00
parent 497caee13a
commit b928688153
1 changed files with 87 additions and 0 deletions
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include/device.h
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/*
* device.h - Exports for low level device io. Part of the Linux-NTFS project.
*
* Copyright (c) 2003 Anton Altaparmakov
*
* 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 (in the main directory of the Linux-NTFS
* distribution in the file COPYING); if not, write to the Free Software
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _NTFS_DEVICE_H
#define _NTFS_DEVICE_H
#include "types.h"
#include "support.h"
/*
* Defined bits for the state field in the ntfs_device structure.
*/
typedef enum {
ND_Open, /* 1: Device is open. */
ND_ReadOnly, /* 1: Device is read-only. */
ND_Dirty, /* 1: Device is dirty, needs sync. */
} ntfs_device_state_bits;
#define test_ndev_flag(nd, flag) test_bit(ND_##flag, (nd)->d_state)
#define set_ndev_flag(nd, flag) set_bit(ND_##flag, (nd)->d_state)
#define clear_ndev_flag(nd, flag) clear_bit(ND_##flag, (nd)->d_state)
#define NDevOpen(nd) test_ndev_flag(nd, Open)
#define NDevSetOpen(nd) set_ndev_flag(nd, Open)
#define NDevClearOpen(nd) clear_ndev_flag(nd, Open)
#define NDevReadOnly(nd) test_ndev_flag(nd, ReadOnly)
#define NDevSetReadOnly(nd) set_ndev_flag(nd, ReadOnly)
#define NDevClearReadOnly(nd) clear_ndev_flag(nd, ReadOnly)
#define NDevDirty(nd) test_ndev_flag(nd, Dirty)
#define NDevSetDirty(nd) set_ndev_flag(nd, Dirty)
#define NDevClearDirty(nd) clear_ndev_flag(nd, Dirty)
/* Forward declaration. */
struct ntfs_device_operations;
/*
* The ntfs device structure defining all operations needed to access the low
* level device underlying the ntfs volume.
*/
struct ntfs_device {
struct ntfs_device_operations *d_ops; /* Device operations. */
unsigned long d_state; /* State of the device. */
char *d_name; /* Name of device. */
void *d_private; /* Private data used by the
device operations. */
};
/*
* The ntfs device operations defining all operations that can be performed on
* the low level device described by a ntfs device structure.
*/
struct ntfs_device_operations {
struct ntfs_device *(*open)(const char *pathname, int flags);
int (*close)(struct ntfs_device *dev);
int (*sync)(struct ntfs_device *dev);
s64 (*seek)(struct ntfs_device *dev, s64 offset, int whence);
s64 (*read)(struct ntfs_device *dev, void *buf, s64 count);
s64 (*write)(struct ntfs_device *dev, const void *buf, s64 count);
s64 (*pread)(struct ntfs_device *dev, void *buf, s64 count, s64 offset);
s64 (*pwrite)(struct ntfs_device *dev, const void *buf, s64 count,
s64 offset);
};
struct ntfs_device *ntfs_device_alloc(void);
int ntfs_device_free(struct ntfs_device *dev);
#endif /* defined _NTFS_DEVICE_H */