File Manager

X7ROOT File Manager

Current Path: /opt/alt/ruby18/lib64/ruby/1.8

opt / alt / ruby18 / lib64 / ruby / 1.8 /

ðŸ“ ..
ðŸ“„ English.rb(5.6 KB)
ðŸ“„ Env.rb(274 B)
ðŸ“„ abbrev.rb(2.5 KB)
ðŸ“„ base64.rb(3.37 KB)
ðŸ“„ benchmark.rb(17.73 KB)
ðŸ“ bigdecimal
ðŸ“ cgi
ðŸ“„ cgi-lib.rb(6.89 KB)
ðŸ“„ cgi.rb(73.74 KB)
ðŸ“„ complex.rb(12.84 KB)
ðŸ“„ csv.rb(24.46 KB)
ðŸ“ date
ðŸ“„ date.rb(53.02 KB)
ðŸ“„ date2.rb(128 B)
ðŸ“„ debug.rb(20.61 KB)
ðŸ“„ delegate.rb(8.81 KB)
ðŸ“ digest
ðŸ“„ digest.rb(1.12 KB)
ðŸ“ dl
ðŸ“ drb
ðŸ“„ drb.rb(19 B)
ðŸ“„ e2mmap.rb(4.04 KB)
ðŸ“„ erb.rb(21.38 KB)
ðŸ“„ eregex.rb(487 B)
ðŸ“„ expect.rb(633 B)
ðŸ“„ fileutils.rb(42.23 KB)
ðŸ“„ finalize.rb(5.38 KB)
ðŸ“„ find.rb(1.84 KB)
ðŸ“„ forwardable.rb(6.16 KB)
ðŸ“„ ftools.rb(6.17 KB)
ðŸ“„ generator.rb(8.1 KB)
ðŸ“„ getoptlong.rb(14.88 KB)
ðŸ“„ getopts.rb(2.25 KB)
ðŸ“„ gserver.rb(6.43 KB)
ðŸ“„ importenv.rb(590 B)
ðŸ“ io
ðŸ“„ ipaddr.rb(21.96 KB)
ðŸ“ irb
ðŸ“„ irb.rb(7.43 KB)
ðŸ“„ jcode.rb(4.3 KB)
ðŸ“„ kconv.rb(8.12 KB)
ðŸ“„ logger.rb(17.59 KB)
ðŸ“„ mailread.rb(1.28 KB)
ðŸ“„ mathn.rb(5.42 KB)
ðŸ“„ matrix.rb(27.21 KB)
ðŸ“„ md5.rb(411 B)
ðŸ“„ mkmf.rb(50.65 KB)
ðŸ“„ monitor.rb(7.93 KB)
ðŸ“„ mutex_m.rb(2.07 KB)
ðŸ“ net
ðŸ“„ observer.rb(5.15 KB)
ðŸ“„ open-uri.rb(20.49 KB)
ðŸ“„ open3.rb(2.1 KB)
ðŸ“ openssl
ðŸ“„ openssl.rb(575 B)
ðŸ“ optparse
ðŸ“„ optparse.rb(47.12 KB)
ðŸ“„ ostruct.rb(3.35 KB)
ðŸ“„ parsearg.rb(1.55 KB)
ðŸ“„ parsedate.rb(1.33 KB)
ðŸ“„ pathname.rb(29.39 KB)
ðŸ“„ ping.rb(1.48 KB)
ðŸ“„ pp.rb(15.97 KB)
ðŸ“„ prettyprint.rb(18.33 KB)
ðŸ“„ profile.rb(90 B)
ðŸ“„ profiler.rb(1.59 KB)
ðŸ“„ pstore.rb(11.15 KB)
ðŸ“ racc
ðŸ“„ rational.rb(12.05 KB)
ðŸ“ rdoc
ðŸ“„ readbytes.rb(835 B)
ðŸ“„ resolv-replace.rb(1.55 KB)
ðŸ“„ resolv.rb(56.83 KB)
ðŸ“ rexml
ðŸ“ rinda
ðŸ“ rss
ðŸ“„ rss.rb(504 B)
ðŸ“„ rubyunit.rb(180 B)
ðŸ“ runit
ðŸ“„ scanf.rb(20.63 KB)
ðŸ“„ securerandom.rb(4.27 KB)
ðŸ“„ set.rb(27.08 KB)
ðŸ“„ sha1.rb(418 B)
ðŸ“ shell
ðŸ“„ shell.rb(4.66 KB)
ðŸ“„ shellwords.rb(3.99 KB)
ðŸ“„ singleton.rb(8.08 KB)
ðŸ“ soap
ðŸ“„ sync.rb(6.09 KB)
ðŸ“„ tempfile.rb(4.86 KB)
ðŸ“ test
ðŸ“„ thread.rb(104 B)
ðŸ“„ thwait.rb(4.32 KB)
ðŸ“„ time.rb(31.58 KB)
ðŸ“„ timeout.rb(3 KB)
ðŸ“„ tmpdir.rb(3.69 KB)
ðŸ“„ tracer.rb(2.73 KB)
ðŸ“„ tsort.rb(7.99 KB)
ðŸ“„ un.rb(4.54 KB)
ðŸ“ uri
ðŸ“„ uri.rb(710 B)
ðŸ“„ weakref.rb(2.68 KB)
ðŸ“ webrick
ðŸ“„ webrick.rb(811 B)
ðŸ“ wsdl
ðŸ“ x86_64-linux
ðŸ“ xmlrpc
ðŸ“ xsd
ðŸ“ yaml
ðŸ“„ yaml.rb(12.36 KB)

Editing: pstore.rb

# = PStore -- Transactional File Storage for Ruby Objects
#
# pstore.rb -
#   originally by matz
#   documentation by Kev Jackson and James Edward Gray II
#
# See PStore for documentation.

require "fileutils"
require "digest/md5"

#
# PStore implements a file based persistence mechanism based on a Hash.  User
# code can store hierarchies of Ruby objects (values) into the data store file
# by name (keys).  An object hierarchy may be just a single object.  User code 
# may later read values back from the data store or even update data, as needed.
# 
# The transactional behavior ensures that any changes succeed or fail together.
# This can be used to ensure that the data store is not left in a transitory
# state, where some values were updated but others were not.
# 
# Behind the scenes, Ruby objects are stored to the data store file with 
# Marshal.  That carries the usual limitations.  Proc objects cannot be 
# marshalled, for example.
#
# == Usage example:
# 
#  require "pstore"
#  
#  # a mock wiki object...
#  class WikiPage
#    def initialize( page_name, author, contents )
#      @page_name = page_name
#      @revisions = Array.new
#      
#      add_revision(author, contents)
#    end
#    
#    attr_reader :page_name
#    
#    def add_revision( author, contents )
#      @revisions << { :created  => Time.now,
#                      :author   => author,
#                      :contents => contents }
#    end
#    
#    def wiki_page_references
#      [@page_name] + @revisions.last[:contents].scan(/\b(?:[A-Z]+[a-z]+){2,}/)
#    end
#    
#    # ...
#  end
#  
#  # create a new page...
#  home_page = WikiPage.new( "HomePage", "James Edward Gray II",
#                            "A page about the JoysOfDocumentation..." )
#  
#  # then we want to update page data and the index together, or not at all...
#  wiki = PStore.new("wiki_pages.pstore")
#  wiki.transaction do  # begin transaction; do all of this or none of it
#    # store page...
#    wiki[home_page.page_name] = home_page
#    # ensure that an index has been created...
#    wiki[:wiki_index] ||= Array.new
#    # update wiki index...
#    wiki[:wiki_index].push(*home_page.wiki_page_references)
#  end                   # commit changes to wiki data store file
#  
#  ### Some time later... ###
#  
#  # read wiki data...
#  wiki.transaction(true) do  # begin read-only transaction, no changes allowed
#    wiki.roots.each do |data_root_name|
#      p data_root_name
#      p wiki[data_root_name]
#    end
#  end
#
class PStore
  binmode = defined?(File::BINARY) ? File::BINARY : 0
  RDWR_ACCESS = File::RDWR | File::CREAT | binmode
  RD_ACCESS = File::RDONLY | binmode
  WR_ACCESS = File::WRONLY | File::CREAT | File::TRUNC | binmode

# The error type thrown by all PStore methods.
  class Error < StandardError
  end

# 
  # To construct a PStore object, pass in the _file_ path where you would like 
  # the data to be stored.
  # 
  def initialize(file)
    dir = File::dirname(file)
    unless File::directory? dir
      raise PStore::Error, format("directory %s does not exist", dir)
    end
    if File::exist? file and not File::readable? file
      raise PStore::Error, format("file %s not readable", file)
    end
    @transaction = false
    @filename = file
    @abort = false
  end

# Raises PStore::Error if the calling code is not in a PStore#transaction.
  def in_transaction
    raise PStore::Error, "not in transaction" unless @transaction
  end
  # 
  # Raises PStore::Error if the calling code is not in a PStore#transaction or
  # if the code is in a read-only PStore#transaction.
  # 
  def in_transaction_wr()
    in_transaction()
    raise PStore::Error, "in read-only transaction" if @rdonly
  end
  private :in_transaction, :in_transaction_wr

#
  # Retrieves a value from the PStore file data, by _name_.  The hierarchy of 
  # Ruby objects stored under that root _name_ will be returned.
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def [](name)
    in_transaction
    @table[name]
  end
  #
  # This method is just like PStore#[], save that you may also provide a 
  # _default_ value for the object.  In the event the specified _name_ is not 
  # found in the data store, your _default_ will be returned instead.  If you do 
  # not specify a default, PStore::Error will be raised if the object is not 
  # found.
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def fetch(name, default=PStore::Error)
    in_transaction
    unless @table.key? name
      if default==PStore::Error
	raise PStore::Error, format("undefined root name `%s'", name)
      else
	return default
      end
    end
    @table[name]
  end
  #
  # Stores an individual Ruby object or a hierarchy of Ruby objects in the data
  # store file under the root _name_.  Assigning to a _name_ already in the data
  # store clobbers the old data.
  # 
  # == Example:
  # 
  #  require "pstore"
  #  
  #  store = PStore.new("data_file.pstore")
  #  store.transaction do  # begin transaction
  #    # load some data into the store...
  #    store[:single_object] = "My data..."
  #    store[:obj_heirarchy] = { "Kev Jackson" => ["rational.rb", "pstore.rb"],
  #                              "James Gray"  => ["erb.rb", "pstore.rb"] }
  #  end                   # commit changes to data store file
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction and it cannot
  # be read-only.  It will raise PStore::Error if called at any other time.
  #
  def []=(name, value)
    in_transaction_wr()
    @table[name] = value
  end
  #
  # Removes an object hierarchy from the data store, by _name_.
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction and it cannot
  # be read-only.  It will raise PStore::Error if called at any other time.
  #
  def delete(name)
    in_transaction_wr()
    @table.delete name
  end

#
  # Returns the names of all object hierarchies currently in the store.
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def roots
    in_transaction
    @table.keys
  end
  #
  # Returns true if the supplied _name_ is currently in the data store.
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def root?(name)
    in_transaction
    @table.key? name
  end
  # Returns the path to the data store file.
  def path
    @filename
  end

#
  # Ends the current PStore#transaction, committing any changes to the data
  # store immediately.
  # 
  # == Example:
  # 
  #  require "pstore"
  #   
  #  store = PStore.new("data_file.pstore")
  #  store.transaction do  # begin transaction
  #    # load some data into the store...
  #    store[:one] = 1
  #    store[:two] = 2
  #  
  #    store.commit        # end transaction here, committing changes
  #  
  #    store[:three] = 3   # this change is never reached
  #  end
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def commit
    in_transaction
    @abort = false
    throw :pstore_abort_transaction
  end
  #
  # Ends the current PStore#transaction, discarding any changes to the data
  # store.
  # 
  # == Example:
  # 
  #  require "pstore"
  #   
  #  store = PStore.new("data_file.pstore")
  #  store.transaction do  # begin transaction
  #    store[:one] = 1     # this change is not applied, see below...
  #    store[:two] = 2     # this change is not applied, see below...
  #  
  #    store.abort         # end transaction here, discard all changes
  #  
  #    store[:three] = 3   # this change is never reached
  #  end
  # 
  # *WARNING*:  This method is only valid in a PStore#transaction.  It will
  # raise PStore::Error if called at any other time.
  #
  def abort
    in_transaction
    @abort = true
    throw :pstore_abort_transaction
  end

#
  # Opens a new transaction for the data store.  Code executed inside a block
  # passed to this method may read and write data to and from the data store 
  # file.
  # 
  # At the end of the block, changes are committed to the data store
  # automatically.  You may exit the transaction early with a call to either 
  # PStore#commit or PStore#abort.  See those methods for details about how
  # changes are handled.  Raising an uncaught Exception in the block is 
  # equivalent to calling PStore#abort.
  # 
  # If _read_only_ is set to +true+, you will only be allowed to read from the
  # data store during the transaction and any attempts to change the data will
  # raise a PStore::Error.
  # 
  # Note that PStore does not support nested transactions.
  #
  def transaction(read_only=false)  # :yields:  pstore
    raise PStore::Error, "nested transaction" if @transaction
    begin
      @rdonly = read_only
      @abort = false
      @transaction = true
      value = nil
      new_file = @filename + ".new"

content = nil
      unless read_only
        file = File.open(@filename, RDWR_ACCESS)
        file.flock(File::LOCK_EX)
        commit_new(file) if FileTest.exist?(new_file)
        content = file.read()
      else
        begin
          file = File.open(@filename, RD_ACCESS)
          file.flock(File::LOCK_SH)
          content = (File.open(new_file, RD_ACCESS) {|n| n.read} rescue file.read())
        rescue Errno::ENOENT
          content = ""
        end
      end

if content != ""
	@table = load(content)
        if !read_only
          size = content.size
          md5 = Digest::MD5.digest(content)
        end
      else
	@table = {}
      end
      content = nil		# unreference huge data

begin
	catch(:pstore_abort_transaction) do
	  value = yield(self)
	end
      rescue Exception
	@abort = true
	raise
      ensure
	if !read_only and !@abort
          tmp_file = @filename + ".tmp"
	  content = dump(@table)
	  if !md5 || size != content.size || md5 != Digest::MD5.digest(content)
            File.open(tmp_file, WR_ACCESS) {|t| t.write(content)}
            File.rename(tmp_file, new_file)
            commit_new(file)
          end
          content = nil		# unreference huge data
	end
      end
    ensure
      @table = nil
      @transaction = false
      file.close if file
    end
    value
  end

# This method is just a wrapped around Marshal.dump.
  def dump(table)  # :nodoc:
    Marshal::dump(table)
  end

# This method is just a wrapped around Marshal.load.
  def load(content)  # :nodoc:
    Marshal::load(content)
  end

# This method is just a wrapped around Marshal.load.
  def load_file(file)  # :nodoc:
    Marshal::load(file)
  end

private
  # Commits changes to the data store file.
  def commit_new(f)
    f.truncate(0)
    f.rewind
    new_file = @filename + ".new"
    File.open(new_file, RD_ACCESS) do |nf|
      FileUtils.copy_stream(nf, f)
    end
    File.unlink(new_file)
  end
end

# :enddoc:

if __FILE__ == $0
  db = PStore.new("/tmp/foo")
  db.transaction do
    p db.roots
    ary = db["root"] = [1,2,3,4]
    ary[1] = [1,1.5]
  end

1000.times do
    db.transaction do
      db["root"][0] += 1
      p db["root"][0]
    end
  end

db.transaction(true) do
    p db["root"]
  end
end

X7ROOT File Manager

Editing: pstore.rb

Upload File

Create Folder