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statvfs.h
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statvfs.h
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/*
* Copyright (c) 2005 The DragonFly Project. All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Jeroen Ruigrok van der Werven <asmodai@tendra.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of The DragonFly Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific, prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $DragonFly: src/sys/sys/statvfs.h,v 1.10 2008/06/02 16:55:08 dillon Exp $
*/
#ifndef _SYS_STATVFS_H_
#define _SYS_STATVFS_H_
#include <sys/types.h>
#include <sys/uuid.h>
struct fhandle;
struct statfs;
/*
* The POSIX 1003.1 standard uses free and available nomenclature to mean the
* following:
* - free means all space, including privileged processes,
* - avail means all space available to unprivileged processes.
*/
struct statvfs {
unsigned long f_bsize; /* file system block size */
unsigned long f_frsize; /* fundamental file system block size */
fsblkcnt_t f_blocks; /* total number of blocks on fs */
fsblkcnt_t f_bfree; /* total number of free blocks */
fsblkcnt_t f_bavail; /* total number of available blocks */
fsfilcnt_t f_files; /* total number of file serial num */
fsfilcnt_t f_ffree; /* total number of free file ser num */
fsfilcnt_t f_favail; /* total number of avail file ser num */
unsigned long f_fsid; /* file system ID */
unsigned long f_flag; /* bit mask of f_flag values */
unsigned long f_namemax; /* maximum filename length */
uid_t f_owner; /* user that mounted the filesystem */
unsigned int f_type; /* filesystem type */
uint64_t f_syncreads; /* count of sync reads since mount */
uint64_t f_syncwrites; /* count of sync writes since mount */
uint64_t f_asyncreads; /* count of async reads since mount */
uint64_t f_asyncwrites; /* count of async writes since mount */
/*
* DragonFly extensions - full uuid FSID and owner
*/
uuid_t f_fsid_uuid;
uuid_t f_uid_uuid;
};
/*
* f_flag definitions
*/
#define ST_RDONLY 0x00000001 /* fs is read-only */
#define ST_NOSUID 0x00000002 /* ST_ISUID or ST_ISGID not supported */
/*
* DragonFly specific flags
*/
#define ST_FSID_UUID 0x40000000 /* f_fsid_uuid field is valid */
#define ST_OWNER_UUID 0x80000000 /* f_owner_uuid field is valid */
__BEGIN_DECLS
int fstatvfs(int, struct statvfs *);
int statvfs(const char * __restrict, struct statvfs * __restrict);
int fhstatvfs (const struct fhandle *, struct statvfs * __restrict);
int getvfsstat (struct statfs * __restrict, struct statvfs * __restrict, long, int);
__END_DECLS
#endif /* _SYS_STATVFS_H_ */