Class: Vmstat::LinuxDisk

Inherits:
Disk
  • Object
show all
Defined in:
lib/vmstat/linux_disk.rb

Overview

Since on linux the type and mount information are note available in the statfs library, we have to use constants to find out the file system type. The mount point and the path will allways be the same, because we don’t have the mount information. But one can still either use the device or mountpoint to get the information.

Constant Summary collapse

FS_CODES =

Mapping of file system type codes to file system names.

{
  44533=>:adfs, 44543=>:affs, 1111905073=>:befs, 464386766=>:bfs,
  4283649346=>:cifs_number, 1937076805=>:coda, 19920823=>:coh,
  684539205=>:cramfs, 4979=>:devfs, 4278867=>:efs, 4989=>:ext,
  61265=>:ext2_old, 61267=>:ext4, 16964=>:hfs, 4187351113=>:hpfs,
  2508478710=>:hugetlbfs, 38496=>:isofs, 29366=>:jffs2,
  827541066=>:jfs, 4991=>:minix, 9320=>:minix2, 9336=>:minix22,
  19780=>:msdos, 22092=>:ncp, 26985=>:nfs, 1397118030=>:ntfs_sb,
  40865=>:openprom, 40864=>:proc, 47=>:qnx4, 1382369651=>:reiserfs,
  29301=>:romfs, 20859=>:smb, 19920822=>:sysv2, 19920821=>:sysv4,
  16914836=>:tmpfs, 352400198=>:udf, 72020=>:ufs, 7377 => :devpts,
  40866=>:usbdevice, 2768370933=>:vxfs, 19920820=>:xenix, 1481003842=>:xfs,
  19911021=>:xiafs, 1448756819=>:reiserfs, 1650812274 => :sysfs
}.freeze

Instance Attribute Summary

Attributes inherited from Disk

#available_blocks, #block_size, #free_blocks, #mount, #origin, #total_blocks, #type

Instance Method Summary collapse

Methods inherited from Disk

#available_bytes, #free_bytes, #total_bytes, #used_bytes

Constructor Details

#initialize(fs = nil, path = nil, block_size = nil, free_blocks = nil, available_blocks = nil, total_blocks = nil) ⇒ LinuxDisk

Mainly a wrapper for the Disk class constructor. This constructor handles the file system type mapping (based on the magic codes defined in FS_CODES).

Parameters:

  • fs (Fixnum) (defaults to: nil) —

    the type or magix number of the disk.

  • path (String) (defaults to: nil) —

    the path to the disk

  • block_size (Fixnum) (defaults to: nil) —

    size of a file system block

  • free_blocks (Fixnum) (defaults to: nil) —

    the number of free blocks

  • available_blocks (Fixnum) (defaults to: nil) —

    the number of available blocks

  • total_blocks (Fixnum) (defaults to: nil) —

    the number of total blocks



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# File 'lib/vmstat/linux_disk.rb', line 33

def initialize(fs = nil, path = nil, block_size = nil, free_blocks = nil,
               available_blocks = nil, total_blocks = nil)
  @fs = fs
  super FS_CODES[@fs], path, path, block_size, 
        free_blocks, available_blocks, total_blocks
end