luaposix 36.2.1

• Index

Contents

• Functions
• Tables
• Constants

Modules

• posix
• posix.ctype
• posix.dirent
• posix.errno
• posix.fcntl
• posix.fnmatch
• posix.glob
• posix.grp
• posix.libgen
• posix.poll
• posix.pwd
• posix.sched
• posix.signal
• posix.stdio
• posix.stdlib
• posix.sys.msg
• posix.sys.resource
• posix.sys.socket
• posix.sys.stat
• posix.sys.statvfs
• posix.sys.time
• posix.sys.times
• posix.sys.utsname
• posix.sys.wait
• posix.syslog
• posix.termio
• posix.time
• posix.unistd
• posix.utime

Examples

• abstract-ns-client.lua
• abstract-ns-server.lua
• dir.lua
• dup2.lua
• fork.lua
• fork2.lua
• getopt.lua
• glob.lua
• limit.lua
• lock.lua
• netlink-uevent.lua
• packet-socket.lua
• ping.lua
• poll.lua
• rt_sched.lua
• signal.lua
• socket.lua
• termios.lua
• tree.lua

Module posix.sys.statvfs

Retrieve File System Information.

Where supported by the underlying system, query the file system. If the module loads, but there is no kernel support, then posix.sys.statvfs.version will be set, but the unsupported APIs will be nil.

Functions

statvfs (path)

Get file system statistics.

Tables

PosixStatvfs

Files system information record.

Constants

posix.sys.statvfs

Statvfs constants.

Functions

statvfs (path)

Get file system statistics.

Parameters:

• path string any path within the mounted file system

Returns:

PosixStatvfs information about file system containing path, if successful

Or

1. nil
2. string error message
3. int errnum

See also:

statvfs(3)

Usage:

local statvfs = require "posix.sys.statvfs".statvfs
for a, b in pairs (statvfs "/") do print (a, b) end

Tables

PosixStatvfs

Files system information record.

Fields:

• f_bsize int file system block size
• f_frsize int fundamental file system block size
• f_blocks int number of *f_frsize* sized blocks in file system
• f_bfree int number of free blocks
• f_bavail int number of free blocks available to non-privileged process
• f_files int number of file serial numbers
• f_ffree int number of free file serial numbers
• f_favail int number of free file serial numbers available
• f_fsid int file system id
• f_flag int flag bits
• f_namemax int maximum filename length

Constants

posix.sys.statvfs

Statvfs constants. Any constants not available in the underlying system will be nil valued.

Fields:

• ST_RDONLY int read-only file system
• ST_NOSUID int does not support S_ISUID nor S_ISGID file mode bits

Usage:

-- Print statvfs constants supported on this host.
for name, value in pairs (require "posix.sys.statvfs") do
  if type (value) == "number" then
    print (name, value)
   end
end