module Bunny::JRuby::Socket

TCP socket extension that uses Socket#readpartial to avoid excessive CPU burn after some time. See issue #165. @private

Public Class Methods

open(host, port, options = {}) click to toggle source
# File lib/bunny/jruby/socket.rb, line 11
def self.open(host, port, options = {})
  socket = ::Socket.tcp(host, port, nil, nil,
                        connect_timeout: options[:connect_timeout])
  if ::Socket.constants.include?('TCP_NODELAY') || ::Socket.constants.include?(:TCP_NODELAY)
    socket.setsockopt(::Socket::IPPROTO_TCP, ::Socket::TCP_NODELAY, true)
  end
  socket.setsockopt(::Socket::SOL_SOCKET, ::Socket::SO_KEEPALIVE, true) if options.fetch(:keepalive, true)
  socket.extend self
  socket.options = { :host => host, :port => port }.merge(options)
  socket
rescue Errno::ETIMEDOUT
  raise ClientTimeout
end

Public Instance Methods

read_fully(count, timeout = nil) click to toggle source

Reads given number of bytes with an optional timeout

@param [Integer] count How many bytes to read @param [Integer] timeout Timeout

@return [String] Data read from the socket @api public

# File lib/bunny/jruby/socket.rb, line 32
def read_fully(count, timeout = nil)
  value = ''

  begin
    loop do
      value << read_nonblock(count - value.bytesize)
      break if value.bytesize >= count
    end
  rescue EOFError
    # JRuby specific fix via https://github.com/jruby/jruby/issues/1694#issuecomment-54873532
    IO.select([self], nil, nil, timeout)
    retry
  rescue *READ_RETRY_EXCEPTION_CLASSES
    if IO.select([self], nil, nil, timeout)
      retry
    else
      raise Timeout::Error, "IO timeout when reading #{count} bytes"
    end
  end

  value
end