.\" Copyright (C) 2003 Andries Brouwer (aeb@cwi.nl)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" The pathconf note is from Walter Harms
.\" This is not a system call on Linux
.\"
.\" Modified 2004-06-23 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" Japanese Version Copyright (c) 2004-2005 Yuichi SATO
.\"         all rights reserved.
.\" Translated Tue Jun 29 23:36:41 JST 2004
.\"         by Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified Sun Jan  9 22:50:29 JST 2005 by Yuichi SATO
.\"
.TH STATVFS 2 2003-08-22 "Linux" "Linux Programmer's Manual"
.SH ̾
statvfs, fstatvfs \- ե륷ƥפ
.SH 
.B #include <sys/statvfs.h>
.sp
.BI "int statvfs(const char *" path ", struct statvfs *" buf );
.br
.BI "int fstatvfs(int " fd ", struct statvfs *" buf );
.SH 
ؿ
.BR statvfs ()
ϥޥȤ줿ե륷ƥˤĤƤξ֤
.I path
ϥޥȤ줿ե륷ƥǤդΥեΥѥ̾Ǥ롣
.I buf
ϡʲΤ褦Ƥ
.I statvfs
¤ΤؤΥݥ󥿤Ǥ:

.in +4n
.nf
struct statvfs {
    unsigned long  f_bsize;    /* ե륷ƥΥ֥å */
    unsigned long  f_frsize;   /* ե饰ȥ */
    fsblkcnt_t     f_blocks;   /* ե륷ƥΥ (f_frsize ñ) */
    fsblkcnt_t     f_bfree;    /* Ƥ֥å */
    fsblkcnt_t     f_bavail;   /* 롼ȰʳβƤ֥å */
    fsfilcnt_t     f_files;    /* inode  */
    fsfilcnt_t     f_ffree;    /* Ƥ inode ο */
    fsfilcnt_t     f_favail;   /* 롼ȰʳβƤ inode ο */
    unsigned long  f_fsid;     /* ե륷ƥ ID */
    unsigned long  f_flag;     /* ޥȥե饰 */
    unsigned long  f_namemax;  /* ե̾Ĺκ */
};
.fi
.in

ǡ
.I fsblkcnt_t

.I fsfilcnt_t

.I <sys/types.h>
Ƥ롣
Ĥơ϶
.I "unsigned long"
Ǥä

ե
.I f_flag
 (ޥȥե饰) ӥåȥޥǤ
(ޥȥե饰ˤĤƤϡ
.BR mount (8)
򻲾Ȥ뤳)
POSIX ƤӥåȤϰʲ̤:
.TP
.B ST_RDONLY
ɤ߹ѤΥե륷ƥࡣ
.TP
.B ST_NOSUID
.BR exec (3)
̵뤵 set-user-id/set-group-ID ӥåȡ
.LP
֤줿¤ΤƤΥФƤΥե륷ƥ
̣ΤͤǤ뤫ݤϡꤵƤʤ

.BR fstatvfs ()
ϡǥץ
.I fd
ǻȤ륪ץ󤵤줿եˤĤơƱ֤
.SH ֤
硢0 ֤롣
顼ξ硢\-1 ֤ơ
.I errno
Ŭڤꤵ롣
.SH 顼
.TP
.B EACCES
.RB ( statvfs ()
ξ)
.I path
Υǥ쥯ȥʬ˸ĤͿƤʤ
.RB ( path_resolution (7)
⻲Ȥ뤳)
.TP
.B EBADF
.RB ( fstatvfs ()
ξ)
.I fd
ͭʥץեǥץǤϤʤ
.TP
.B EFAULT
.I buf
ޤ
.I path
̵ʥɥ쥹ؤƤ롣
.TP
.B EINTR
θƤӽФʥˤäǤ줿
.TP
.B EIO
ե륷ƥफɤ߽ФƤ֤ I/O 顼ȯ
.TP
.B ELOOP
.RB ( statvfs ()
ξ)
.I path
˥ܥå󥯤¿롣
.TP
.B ENAMETOOLONG
.RB ( statvfs ()
ξ)
.I path
Ĺ롣
.TP
.B ENOENT
.RB ( statvfs ()
ξ)
.I path
ǻȤե뤬¸ߤʤ
.TP
.B ENOMEM
ʬʥ꤬ͥѤǤʤ
.TP
.B ENOSYS
ե륷ƥबθƤӽФ򥵥ݡȤƤʤ
.TP
.B ENOTDIR
.RB ( statvfs ()
ξ)
.I path
Υǥ쥯ȥʬǥ쥯ȥǤʤ
.TP
.B EOVERFLOW
Ĥͤϡ֤빽¤Τɽˤ礭롣
.SH 
POSIX.1-2001
.SH 
Linux ͥˤϡΥ饤֥ꥳ򥵥ݡȤ뤿ˡ
.BR statfs (2),
.BR fstatfs (2)
ƥॳ뤬롣

ߤ glibc μˤơ
.sp
.nf
   pathconf(path, _PC_REC_XFER_ALIGN);
   pathconf(path, _PC_ALLOC_SIZE_MIN);
   pathconf(path, _PC_REC_MIN_XFER_SIZE);
.fi
.sp
ϡ줾
.I "statvfs(path,buf)"
֤ͤ
.IR f_frsize ,
.IR f_frsize ,
.I f_bsize
եɤȤ
.SH Ϣ
.BR statfs (2)