Sha256: 7ed1d816cd2e65dd870fa83f1c00cfd64e8d540b3ac02aaabde4ff8b55510354
Contents?: true
Size: 1003 Bytes
Versions: 67
Compression:
Stored size: 1003 Bytes
Contents
require 'binary_struct'
module Ext4
# ////////////////////////////////////////////////////////////////////////////
# // Data definitions.
EXTENT = BinaryStruct.new([
'L', 'block', # first logical block extent covers
'S', 'length', # number of blocks covered by extent
'S', 'start_hi', # high 16 bits of physical block
'L', 'start_lo', # low 32 bits of physical block
])
SIZEOF_EXTENT = EXTENT.size
class Extent
attr_reader :block, :length, :start
def initialize(buf)
raise "Ext4::Extent.initialize: Nil buffer" if buf.nil?
@extent = EXTENT.decode(buf)
@block = @extent['block']
@length = @extent['length']
@start = (@extent['start_hi'] << 32) | @extent['start_lo']
end
def dump
out = "\#<#{self.class}:0x#{'%08x' % object_id}>\n"
out += "Block : #{@block}\n"
out += "Length : #{@length}\n"
out += "Start : #{@start}\n"
out
end
end
end
Version data entries
67 entries across 67 versions & 1 rubygems