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Size: 1.16 KB
Versions: 66
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Stored size: 1.16 KB
Contents
require 'binary_struct'
module Ext4
# ////////////////////////////////////////////////////////////////////////////
# // Data definitions.
EXTENT_HEADER = BinaryStruct.new([
'S', 'magic', # Signature.
'S', 'entries', # Number of Valid Entries
'S', 'max', # Capacity of Store in Entries
'S', 'depth', # Has tree real underlying blocks?
'L', 'generation', # Generation of the tree.
])
SIZEOF_EXTENT_HEADER = EXTENT_HEADER.size
class ExtentHeader
attr_reader :magic, :entries, :max, :depth, :generation
def initialize(buf)
raise "Ext4::ExtentHeader.initialize: Nil buffer" if buf.nil?
@eh = EXTENT_HEADER.decode(buf)
@magic = @eh['magic']
@entries = @eh['entries']
@max = @eh['max']
@depth = @eh['depth']
@generation = @eh['generation']
end
def dump
out = "\#<#{self.class}:0x#{'%08x' % object_id}>\n"
out += "Magic : #{@magic}\n"
out += "Entries : #{@entries}\n"
out += "Max : #{@max}\n"
out += "Depth : #{@depth}\n"
out += "Generation : #{@generation}\n"
out
end
end
end
Version data entries
66 entries across 66 versions & 1 rubygems