STATVFS(2) | System Calls Manual | STATVFS(2) |
statvfs
, statvfs1
,
fstatvfs
, fstatvfs1
—
#include <sys/statvfs.h>
int
statvfs
(const
char *path, struct
statvfs *buf);
int
statvfs1
(const
char *path, struct
statvfs *buf, int
flags);
int
fstatvfs
(int
fd, struct statvfs
*buf);
int
fstatvfs1
(int
fd, struct statvfs
*buf, int
flags);
statvfs
() and statvfs1
() return
information about a mounted file system. path is the
path name of any file within the mounted file system.
buf is a pointer to a statvfs
structure defined in
statvfs(5).
fstatvfs
() and
fstatvfs1
() return the same information about an
open file referenced by descriptor fd.
The statvfs1
() and
fstatvfs1
() functions allow an extra
flags argument which can be
ST_WAIT
and ST_NOWAIT
. When
ST_NOWAIT
is specified, then only cached statistics
are returned. This can result in significant savings on non-local file
systems, where gathering statistics involves a network communication.
The statvfs
() and
fstatvfs
() calls are equivalent to the respective
statvfs1
() and fstatvfs1
()
calls with ST_WAIT
specified as the
flags argument.
statvfs
() and statvfs1
() fail if
one or more of the following are true:
ENOTDIR
]ENAMETOOLONG
]NAME_MAX
} characters, or the length of
path exceeds {PATH_MAX
}
characters.ENOENT
]EACCES
]ELOOP
]EFAULT
]EIO
]fstatvfs
() and
fstatvfs1
() fail if one or more of the following are
true:
statvfs
(), statvfs1
(),
fstatvfs
(), and fstatvfs1
()
functions first appeared in NetBSD 3.0 to replace the
statfs
() family of functions which first appeared in
4.4BSD.
April 14, 2004 | NetBSD 9.2 |