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Contents
require 'fs/ext3/file_data'
require 'fs/ext3/directory_entry'
module Ext3
class Directory
ROOT_DIRECTORY = 2
def initialize(sb, inodeNum = ROOT_DIRECTORY)
raise "Ext3::Directory.initialize: Nil superblock" if sb.nil?
raise "Ext3::Directory.initialize: Nil inode number" if inodeNum.nil?
@sb = sb; @inodeNum = inodeNum
@inodeObj = sb.getInode(inodeNum)
@data = FileData.new(@inodeObj, @sb).read
end
def globNames
@ent_names ||= globEntries.keys.compact.sort
end
def findEntry(name, type = nil)
return nil unless globEntries.key?(name)
newEnt = @sb.isNewDirEnt?
globEntries[name].each do |ent|
ent.fileType = @sb.getInode(ent.inode).fileModeToFileType unless newEnt
return ent if ent.fileType == type || type.nil?
end
nil
end
private
def globEntries
return @ents_by_name unless @ents_by_name.nil?
@ents_by_name = {}; p = 0
return @ents_by_name if @data.nil?
newEnt = @sb.isNewDirEnt?
loop do
break if p > @data.length - 4
break if @data[p, 4].nil?
de = DirectoryEntry.new(@data[p..-1], newEnt)
raise "Ext3::Directory.globEntries: DirectoryEntry length cannot be 0" if de.len == 0
@ents_by_name[de.name] ||= []
@ents_by_name[de.name] << de
p += de.len
end
@ents_by_name
end
end # class
end # module
Version data entries
67 entries across 67 versions & 1 rubygems