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NAME
sys/statvfs.h - VFS File System information structure
SYNOPSIS
#include <sys/statvfs.h>
DESCRIPTION
The <sys/statvfs.h> header shall define the statvfs structure that
includes at least the following members:
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 file system in units of f_frsize.
fsblkcnt_t f_bfree Total number of free blocks.
fsblkcnt_t f_bavail Number of free blocks available to
non-privileged process.
fsfilcnt_t f_files Total number of file serial numbers.
fsfilcnt_t f_ffree Total number of free file serial numbers.
fsfilcnt_t f_favail Number of file serial numbers available to
non-privileged process.
unsigned long f_fsid File system ID.
unsigned long f_flag Bit mask of f_flag values.
unsigned long f_namemax Maximum filename length.
The fsblkcnt_t and fsfilcnt_t types shall be defined as described in
<sys/types.h> .
The following flags for the f_flag member shall be defined:
ST_RDONLY
Read-only file system.
ST_NOSUID
Does not support the semantics of the ST_ISUID and ST_ISGID file
mode bits.
The following shall be declared as functions and may also be defined as
macros. Function prototypes shall be provided.
int statvfs(const char *restrict, struct statvfs *restrict);
int fstatvfs(int, struct statvfs *);
The following sections are informative.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
<sys/types.h> , the System Interfaces volume of IEEE Std 1003.1-2001,
fstatvfs(), statvfs()
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 <sys/statvfs.h>(P)
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This page was generated on Tue Feb 13 02:23:43 GMT 2007
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