Class: ReiserFS::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/fs/ReiserFS/utils.rb

Class Method Summary collapse

Class Method Details

.compareKeys(a, b, fuzzy = true) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 73

def self.compareKeys(a, b, fuzzy = true)
  # Compare directory IDs
  return (-1) if a['directory_id'] < b['directory_id']
  return (+1) if a['directory_id'] > b['directory_id']

  # Compare Object IDs
  return (-1) if a['object_id'] < b['object_id']
  return (+1) if a['object_id'] > b['object_id']

  if fuzzy == false
    # Compare Offsets
    return (-1) if a['offset'] < b['offset']
    return (+1) if a['offset'] > b['offset']

    # Compare Types
    return (-1) if a['type'] < b['type']
    return (+1) if a['type'] > b['type']
  end

  0
end

.dumpKey(key, label = nil) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 3

def self.dumpKey(key, label = nil)
  "#{label}:\t\{#{key['directory_id']},#{key['object_id']},#{key['offset']},#{key['type']}\}"
end

.getKeyDirectoryID(k) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 57

def self.getKeyDirectoryID(k)
  k['directory_id']
end

.getKeyObjectID(k) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 61

def self.getKeyObjectID(k)
  k['object_id']
end

.getKeyOffset(k) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 65

def self.getKeyOffset(k)
  k['offset']
end

.getKeyType(k) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 69

def self.getKeyType(k)
  k['type']
end

.type2integer(t) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 44

def self.type2integer(t)
  case t
  when 0x20000000, 0xFFFFFFFF
    return -1

  when 0x10000000, 0xFFFFFFFE
    return -2

  end

  t
end

.type2text(t) ⇒ Object 



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# File 'lib/fs/ReiserFS/utils.rb', line 27

def self.type2text(t)
  case t
  when -1
    return 'direct'
  when -2
    return 'indirect'
  when 0
    return 'stat'
  when 500
    return 'directory'
  when 555
    return 'any'
  else
    raise "Unrecognized Type #{t}"
  end
end

.typeIsDirect?(t) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fs/ReiserFS/utils.rb', line 17

def self.typeIsDirect?(t)
  return true if t == -1
  false
end

.typeIsDirectory?(t) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fs/ReiserFS/utils.rb', line 11

def self.typeIsDirectory?(t)
  return true if t == 500
  return true if t == 3
  false
end

.typeIsIndirect?(t) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fs/ReiserFS/utils.rb', line 22

def self.typeIsIndirect?(t)
  return true if t == -2
  false
end

.typeIsStat?(t) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fs/ReiserFS/utils.rb', line 7

def self.typeIsStat?(t)
  t == 0
end