CONTENTS

LIBRARY

SYNOPSIS

DESCRIPTION

/*
* filesystem statistics
*/

#define MFSNAMELEN 16 /* length of type name including null */
#define MNAMELEN 88 /* size of on/from name bufs */
#define STATFS_VERSION 0x20030518 /* current version number */

struct statfs {
uint32_t f_version; /* structure version number */
uint32_t f_type; /* type of filesystem */
uint64_t f_flags;/* copy of mount exported flags */
uint64_t f_bsize;/* filesystem fragment size */
uint64_t f_iosize; /* optimal transfer block size */
uint64_t f_blocks; /* total data blocks in filesystem */
uint64_t f_bfree;/* free blocks in filesystem */
int64_t f_bavail; /* free blocks avail to non-superuser */
uint64_t f_files;/* total file nodes in filesystem */
int64_t f_ffree;/* free nodes avail to non-superuser */
uint64_t f_syncwrites;/* count of sync writes since mount */
uint64_t f_asyncwrites; /* count of async writes since mount */
uint64_t f_syncreads; /* count of sync reads since mount */
uint64_t f_asyncreads;/* count of async reads since mount */
uint64_t f_spare[10]; /* unused spare */
uint32_t f_namemax; /* maximum filename length */
uid_tf_owner; /* user that mounted the filesystem */
fsid_t f_fsid;/* filesystem id */
char f_charspare[80];/* spare string space */
char f_fstypename[MFSNAMELEN]; /* filesystem type name */
char f_mntfromname[MNAMELEN]; /* mounted filesystem */
char f_mntonname[MNAMELEN]; /* directory on which mounted */
};

The flags that may be returned include:

ERRORS

The fstatfs system call fails if one or more of the following are true:

HISTORY