mount.h

T-kernel 的extension源代码

/*
 *----------------------------------------------------------------------
 *    T-Kernel / Standard Extension
 *
 *    Copyright (C) 2006 by Ken Sakamura. All rights reserved.
 *    T-Kernel / Standard Extension is distributed 
 *      under the T-License for T-Kernel / Standard Extension.
 *----------------------------------------------------------------------
 *
 *    Version:   1.00.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2006/8/11.
 *
 *----------------------------------------------------------------------
 */

/*
 *	mount.h 
 *
 */

#ifndef __SEIO_SYS_MOUNT_H__
#define __SEIO_SYS_MOUNT_H__

#include "types.h"


#ifdef __cplusplus
extern "C" {
#endif

typedef struct fsid {
	long val[2];				/* File system ID */
} fsid_t;

#define	MNAMELEN	90			/* Connection name/Maximum length of device name */

/*
 * File system information
 *	Value may not be defined to the item with * mark, according to the file system. 
 *      In this case, -1 is set.
 */
struct statfs {
	long	f_spare2;			/* (Free) */
	long	f_bsize;			/* Logical block size (B: byte count) */
	long	f_iosize;			/* Optimum transfer block size (B) */
	long	f_blocks;			/* File system capacity (LB:logical block count) */
	long	f_bfree;			/* File system free space (LB) */
	long	f_bavail;			/* Free space available to general user(LB) */
	long	f_files;			/* *Maximum file count */
	long	f_ffree;			/* *Free file count */
	fsid_t	f_fsid;				/* File system ID (constantly 0) */
	uid_t	f_owner;			/* Connected user (constantly 0) */
	int	f_type;				/* File system type */
	int	f_flags;			/* Connection flag */
	long	f_spare[6];			/* (free) */
	char	f_mntonname[MNAMELEN];		/* Connection name */
	char	f_mntfromname[MNAMELEN];	/* Device name */
};

/*
 * File system type "f_type"
 */
#define	MOUNT_STDFS	20			/* Standard file system */

/*
 * Connection flag "f_flags"
 */
#define	MNT_RDONLY	0x00000001		/* Read-only */

/*
 * "flags" parameter of "getfsstat()"
 */
#define	MNT_WAIT	1
#define	MNT_NOWAIT	2

/*
 * System call
 */
extern int	getfsstat( struct statfs *buf, long bufsize, int flags );

#ifdef __cplusplus
}
#endif
#endif /* __SEIO_SYS_MOUNT_H__ */