Module: QcowDiskProbe

Defined in:
lib/disk/modules/QcowDiskProbe.rb

Constant Summary collapse

QCOW_MAGIC = 
"QFI\xfb"
QCOW_DISK = 
"QcowDisk"

Class Method Summary collapse

Class Method Details

.doProbe(io) ⇒ Object 



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# File 'lib/disk/modules/QcowDiskProbe.rb', line 22

def self.doProbe(io)
  io.seek(0)
  magic = io.read(4)

  return QCOW_DISK if magic == QCOW_MAGIC
  $log.debug "QcowDiskProbe.doProbe: returning nil, #{magic.dump} != #{QCOW_MAGIC.dump}"
  nil
end

.probe(ostruct) ⇒ Object 



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# File 'lib/disk/modules/QcowDiskProbe.rb', line 6

def self.probe(ostruct)
  return nil if ostruct.fileName.nil?

  size  = File.size(ostruct.fileName)
  f     = File.new(ostruct.fileName, "rb")

  rv = doProbe(f)
  f.close

  rv
end

.probeByDisk(disk) ⇒ Object 



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# File 'lib/disk/modules/QcowDiskProbe.rb', line 18

def self.probeByDisk(disk)
  doProbe(disk)
end

.stackable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/disk/modules/QcowDiskProbe.rb', line 31

def self.stackable?
  true
end