require 'socket' module Mongo # Wrapper class for Socket # # Emulates TCPSocket with operation and connection timeout # sans Timeout::timeout # class TCPSocket attr_accessor :pool def initialize(host, port, op_timeout=nil, connect_timeout=nil) @op_timeout = op_timeout @connect_timeout = connect_timeout # TODO: Prefer ipv6 if server is ipv6 enabled @host = Socket.getaddrinfo(host, nil, Socket::AF_INET).first[3] @port = port @socket_address = Socket.pack_sockaddr_in(@port, @host) @socket = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) connect end def connect # Connect nonblock is broken in current versions of JRuby if RUBY_PLATFORM == 'java' require 'timeout' if @connect_timeout Timeout::timeout(@connect_timeout, OperationTimeout) do @socket.connect(@socket_address) end else @socket.connect(@socket_address) end else # Try to connect for @connect_timeout seconds begin @socket.connect_nonblock(@socket_address) rescue Errno::EINPROGRESS # Block until there is a response or error resp = IO.select([@socket], [@socket], [@socket], @connect_timeout) if resp.nil? raise ConnectionTimeoutError end end # If there was a failure this will raise an Error begin @socket.connect_nonblock(@socket_address) rescue Errno::EISCONN # Successfully connected end end end def send(data) @socket.write(data) end def read(maxlen, buffer) # Block on data to read for @op_timeout seconds if IO.select([@socket], nil, [@socket], @op_timeout) begin @socket.readpartial(maxlen, buffer) rescue EOFError return ConnectionError rescue Errno::ENOTCONN, Errno::EBADF, Errno::ECONNRESET, Errno::EPIPE raise ConnectionFailure rescue Errno::EINTR, Errno::EIO raise OperationFailure end else raise OperationTimeout end end def setsockopt(key, value, n) @socket.setsockopt(key, value, n) end def close @socket.close end def closed? @socket.closed? end end end