Sha256: b9c357fb2d36c551fa3b52a2e5cfcb50b2d7456c8a2ed4704f7eb4c8f0a9e0e6
Contents?: true
Size: 952 Bytes
Versions: 66
Compression:
Stored size: 952 Bytes
Contents
require 'binary_struct'
module Ext4
# ////////////////////////////////////////////////////////////////////////////
# // Data definitions.
EXTENT_INDEX = BinaryStruct.new([
'L', 'block', # index covers logical blocks from 'block'
'L', 'leaf_lo', # low 32 bits of physical block of the next level. leaf or next index could be there
'S', 'leaf_hi', # high 16 bits of physical block
'S', 'unused', #
])
SIZEOF_EXTENT_INDEX = EXTENT_INDEX.size
class ExtentIndex
attr_reader :block, :leaf
def initialize(buf)
raise "Ext4::ExtentIndex.initialize: Nil buffer" if buf.nil?
@ei = EXTENT_INDEX.decode(buf)
@block = @ei['block']
@leaf = (@ei['leaf_hi'] << 32) | @ei['leaf_lo']
end
def dump
out = "\#<#{self.class}:0x#{'%08x' % object_id}>\n"
out += "Block : #{@block}\n"
out += "Leaf : #{@leaf}\n"
out
end
end
end
Version data entries
66 entries across 66 versions & 1 rubygems