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Implement the <sys/statvfs.h> header. Related changes to <sys/types.h>

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are still awaiting a worldstone.  Functions and their declarations to
come later.
This commit is contained in:
Garrett Wollman 2002-06-14 19:37:06 +00:00
parent fe1c49fbba
commit 250917547b
2 changed files with 79 additions and 0 deletions
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2
sys/sys/_types.h
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@ -32,6 +32,8 @@
#include <sys/cdefs.h>
#include <machine/ansi.h>
#define _BSD_FSBLKCNT_T_ __uint64_t
#define _BSD_FSFILCNT_T_ __uint64_t
#define _BSD_GID_T_ __uint32_t
#define _BSD_SA_FAMILY_T_ __uint8_t
#define _BSD_UID_T_ __uint32_t

77
sys/sys/statvfs.h Normal file
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@ -0,0 +1,77 @@
/*
* Copyright 2002 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*
* $FreeBSD$
*/
#ifndef _SYS_STATVFS_H_
#define _SYS_STATVFS_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
/*
* POSIX says we must define the fsblkcnt_t and fsfilcnt_t types here.
* Note that these must be unsigned integer types, so we have to be
* careful in converting the signed statfs members to the unsigned
* statvfs members. (Well, actually, we don't -- see below -- but
* a quality implementation should.)
*/
#ifndef _FSBLKCNT_T_DECLARED /* always declared together */
typedef _BSD_FSBLKCNT_T_ fsblkcnt_t
typedef _BSD_FSFILCNT_T_ fsfilcnt_t
#define _FSBLKCNT_T_DECLARED
#endif
/*
* The difference between `avail' and `free' is that `avail' represents
* space available to unprivileged processes, whereas `free' includes all
* unallocated space, including that reserved for privileged processes.
* Or at least, that's the most useful interpretation. (According to
* the letter of the standard, this entire interface is completely
* unspecified!)
*/
struct statvfs {
fsblkcnt_t f_bavail; /* Number of blocks */
fsblkcnt_t f_bfree;
fsblkcnt_t f_blocks;
fsfilcnt_t f_favail; /* Number of files (e.g., inodes) */
fsfilcnt_t f_ffree;
fsfilcnt_t f_files;
unsigned long f_bsize; /* Size of blocks counted above */
unsigned long f_flag;
unsigned long f_frsize; /* Size of fragments */
unsigned long f_fsid; /* Not meaningful */
unsigned long f_namemax; /* Same as pathconf(_PC_NAME_MAX) */
};
/* flag bits for f_flag: */
#define ST_RDONLY 0x1
#define ST_NOSUID 0x2
#endif /* _SYS_STATVFS_H_ */