Ruby 2.1.0 リファレンスマニュアル > ライブラリ一覧 > socketライブラリ > TCPServerクラス

class TCPServer

クラス・モジュールの継承リスト: TCPServer < TCPSocket < IPSocket < BasicSocket < IO < Enumerable < File::Constants < Object < Kernel < BasicObject

要約

TCP/IP ストリーム型接続のサーバ側のソケットのクラスです。

このクラスによって簡単にソケットを利用したサーバのプログラミングができます。

例えば echo サーバは以下のようになります。

require "socket"

gs = TCPServer.open(0)
socks = [gs]
addr = gs.addr
addr.shift
printf("server is on %s\n", addr.join(":"))

while true
  nsock = select(socks)
  next if nsock == nil
  for s in nsock[0]
    if s == gs
      socks.push(s.accept)
      print(s, " is accepted\n")
    else
      if s.eof?
        print(s, " is gone\n")
        s.close
        socks.delete(s)
      else
        str = s.gets
        s.write(str)
      end
    end
  end
end

Thread を使えばもっと短くなります。

require "socket"

gs = TCPServer.open(0)
addr = gs.addr
addr.shift
printf("server is on %s\n", addr.join(":"))

while true
  Thread.start(gs.accept) do |s|       # save to dynamic variable
    print(s, " is accepted\n")
    while s.gets
      s.write($_)
    end
    print(s, " is gone\n")
    s.close
  end
end

特異メソッド

インスタンスメソッド

継承したメソッド

! != __id__ __send__ instance_eval instance_exec method_missing singleton_method_added singleton_method_removed singleton_method_undefined connect_address do_not_reverse_lookup do_not_reverse_lookup= getpeereid getpeername getsockname getsockopt local_address recv recv_nonblock recvmsg recvmsg_nonblock remote_address send sendmsg sendmsg_nonblock setsockopt shutdown .do_not_reverse_lookup .do_not_reverse_lookup= .for_fd << advise autoclose= autoclose? binmode binmode? bytes chars clone close close_on_exec= close_on_exec? close_read close_write closed? codepoints cooked cooked! each each_byte each_char each_codepoint echo= echo? eof expect external_encoding fcntl fdatasync fileno flush fsync getbyte getc getch gets iflush internal_encoding ioctl ioflush isatty lineno lineno= lines noecho nonblock nonblock= nonblock? nread oflush pathconf pid pos pos= print printf putc puts raw raw! read read_nonblock readbyte readchar readline readlines readpartial ready? reopen rewind scanf seek set_encoding stat sync sync= sysread sysseek syswrite to_io ungetbyte ungetc wait wait_writable winsize winsize= write write_nonblock .binread .binwrite .console .console_size .copy_stream .default_console_size .foreach .pipe .popen .read .readlines .select .sysopen .try_convert .write ::SEEK_CUR ::SEEK_DATA ::SEEK_END ::SEEK_HOLE ::SEEK_SET addr peeraddr recvfrom .getaddress !~ <=> == === =~ _dump class define_singleton_method display enum_for eql? equal? extend freeze frozen? hash initialize initialize_copy inspect instance_of? instance_variable_defined? instance_variable_get instance_variable_set instance_variables is_a? itself marshal_dump marshal_load method methods must_be must_be_close_to must_be_empty must_be_instance_of must_be_kind_of must_be_nil must_be_same_as must_be_within_epsilon must_equal must_include must_match must_raise must_respond_to must_send must_throw nil? object_id pretty_inspect pretty_print pretty_print_cycle pretty_print_inspect pretty_print_instance_variables private_methods protected_methods psych_to_yaml public_method public_methods public_send remove_instance_variable respond_to? respond_to_missing? singleton_class singleton_method singleton_methods taint tainted? tap to_a to_ary to_hash to_int to_proc to_regexp to_s to_str trust untaint untrust untrusted? .yaml_tag ::ARGF ::ARGV ::DATA ::ENV ::FALSE ::NIL ::RUBY_COPYRIGHT ::RUBY_DESCRIPTION ::RUBY_ENGINE ::RUBY_PATCHLEVEL ::RUBY_PLATFORM ::RUBY_RELEASE_DATE ::RUBY_REVISION ::RUBY_VERSION ::SCRIPT_LINES__ ::STDERR ::STDIN ::STDOUT ::TOPLEVEL_BINDING ::TRUE .gethostbyname