Class: FFI::StatVfs

Inherits:

Struct

• Object
• Struct
• FFI::StatVfs

Extended by:

Library

Includes:

Accessors

Defined in:

lib/ffi/stat_vfs.rb

Overview

Represents Statvfs for use with Libfuse::FuseOperations#statfs callback

Instance Attribute Summary

• #bavail ⇒ Integer

  Number of free blocks for unprivileged users.

• #bfree ⇒ Integer

  Number of free blocks.

• #blocks ⇒ Integer

  Size of fs in frsize units.

• #bsize ⇒ Integer

  Filesystem block size.

• #favail ⇒ Integer

  Number of free inodes for unprivileged users.

• #ffree ⇒ Integer

  Number of free inodes.

• #files ⇒ Integer

  Number of inodes.

• #flag ⇒ Integer

  Mount flags.

• #frsize ⇒ Integer

  Fragment size.

• #fsid ⇒ Integer

  Filesystem ID.

Class Method Summary

• .from(file) ⇒ StatVfs
• .fstatvfs(file) ⇒ StatVfs
• .statvfs(file) ⇒ StatVfs

Instance Method Summary

• #from(file) ⇒ self

  File from native LIBC calls for file.

• #fstatvfs(fileno) ⇒ self

  Fill from native fstatvfs for fileno.

• #statvfs(path) ⇒ self

  Fill from native statvfs for path.

Methods included from Accessors

#fill, included, #inspect, #to_h

Instance Attribute Details

#bavail ⇒ Integer

Returns Number of free blocks for unprivileged users.

Returns:

• (Integer) —

  Number of free blocks for unprivileged users

# File 'lib/ffi/stat_vfs.rb', line 57

#bfree ⇒ Integer

Returns Number of free blocks.

Returns:

• (Integer) —

  Number of free blocks

# File 'lib/ffi/stat_vfs.rb', line 54

#blocks ⇒ Integer

Returns Size of fs in frsize units.

Returns:

• (Integer) —

  Size of fs in frsize units

# File 'lib/ffi/stat_vfs.rb', line 51

#bsize ⇒ Integer

Returns Filesystem block size.

Returns:

• (Integer) —

  Filesystem block size

# File 'lib/ffi/stat_vfs.rb', line 45

#favail ⇒ Integer

Returns Number of free inodes for unprivileged users.

Returns:

• (Integer) —

  Number of free inodes for unprivileged users

# File 'lib/ffi/stat_vfs.rb', line 66

#ffree ⇒ Integer

Returns Number of free inodes.

Returns:

• (Integer) —

  Number of free inodes

# File 'lib/ffi/stat_vfs.rb', line 63

#files ⇒ Integer

Returns Number of inodes.

Returns:

• (Integer) —

  Number of inodes

# File 'lib/ffi/stat_vfs.rb', line 60

#flag ⇒ Integer

Returns Mount flags.

Returns:

• (Integer) —

  Mount flags

# File 'lib/ffi/stat_vfs.rb', line 72

#frsize ⇒ Integer

Returns Fragment size.

Returns:

• (Integer) —

  Fragment size

# File 'lib/ffi/stat_vfs.rb', line 48

#fsid ⇒ Integer

Returns Filesystem ID.

Returns:

• (Integer) —

  Filesystem ID

# File 'lib/ffi/stat_vfs.rb', line 69

Class Method Details

.from(file) ⇒ StatVfs

Returns:

• (StatVfs)

Raises:

• (SystemCallError)

See Also:

• #from

# File 'lib/ffi/stat_vfs.rb', line 117

.fstatvfs(file) ⇒ StatVfs

Returns:

• (StatVfs)

Raises:

• (SystemCallError)

See Also:

• #fstatvfs

# File 'lib/ffi/stat_vfs.rb', line 131

%i[from statvfs fstatvfs].each { |m| define_method(m) { |file, stat = new, **args| stat.send(m, file, **args) } }

.statvfs(file) ⇒ StatVfs

Returns:

• (StatVfs)

Raises:

• (SystemCallError)

See Also:

• #statvfs

# File 'lib/ffi/stat_vfs.rb', line 122

Instance Method Details

#from(file) ⇒ self

File from native LIBC calls for file

Parameters:

• file (Integer|:to_s) —

  a file descriptor or a file path

Returns:

• (self)

# File 'lib/ffi/stat_vfs.rb', line 110

def from(file)
  return fstatvfs(file) if file.is_a?(Integer)

  statvfs(file)
end

#fstatvfs(fileno) ⇒ self

Fill from native fstatvfs for fileno

Parameters:

• fileno (Integer)

Returns:

• (self)

Raises:

• (SystemCallError)

# File 'lib/ffi/stat_vfs.rb', line 100

def fstatvfs(fileno)
  res = self.class.native_fstatvfs(fileno, self)
  raise SystemCallError.new('', FFI::LastError.errno) unless res.zero?

  self
end

#statvfs(path) ⇒ self

Fill from native statvfs for path

Parameters:

• path (:to_s)

Returns:

• (self)

Raises:

• (SystemCallError)

# File 'lib/ffi/stat_vfs.rb', line 90

def statvfs(path)
  res = self.class.native_statvfs(path.to_s, self)
  raise SystemCallError.new('', FFI::LastError.errno) unless res.zero?

  self
end