Class: Qrack::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/bunny-ext/qrack/client.rb

Direct Known Subclasses

Bunny::Client

Constant Summary collapse

SOCKET_TIMEOUT = 
5.0

Instance Method Summary collapse

Instance Method Details

#initialize_with_timeout_opts(opts = {}) ⇒ Object Also known as: initialize 



9
10
11
12
13
 
# File 'lib/bunny-ext/qrack/client.rb', line 9

def initialize_with_timeout_opts(opts = {})
  initialize_without_timeout_opts(opts)
  @socket_timeout = opts[:socket_timeout] || SOCKET_TIMEOUT
  @use_timeout = RUBY_VERSION >= "1.9"
end

#send_command(cmd, *args) ⇒ Object

Overwritten with a version that uses Bunny::Timer::timeout instead of Object#timeout which is either timeout.rb (ruby 1.9.x) or SystemTimer (ruby 1.8.x) read: ph7spot.com/musings/system-timer



20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/bunny-ext/qrack/client.rb', line 20

def send_command(cmd, *args)
  begin
    raise Bunny::ConnectionError, 'No connection - socket has not been created' if !@socket
    if @use_timeout
      Bunny::Timer::timeout(@socket_timeout, Qrack::ClientTimeout) do
        @socket.__send__(cmd, *args)
      end
    else
      @socket.__send__(cmd, *args)
    end
  rescue Errno::EPIPE, Errno::EAGAIN, Qrack::ClientTimeout, IOError => e
    raise Bunny::ServerDownError, e.message
  end
end

#set_socket_timeouts ⇒ Object

Set socket send and receive timeouts and let the operating system deal with these timeouts. If setting those isn’t supported (for example on solaris) we use the Bunny::Timer::timeout method to wrap all socket accesses



38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/bunny-ext/qrack/client.rb', line 38

def set_socket_timeouts
  return if @status == :not_connected
  secs   = Integer(@socket_timeout)
  usecs  = Integer((@socket_timeout - secs) * 1_000_000)
  optval = [secs, usecs].pack("l_2")
  begin
    @socket.setsockopt Socket::SOL_SOCKET, Socket::SO_RCVTIMEO, optval
    @socket.setsockopt Socket::SOL_SOCKET, Socket::SO_SNDTIMEO, optval
  rescue Errno::ENOPROTOOPT
    @use_timeout = true
  end
end

#socket ⇒ Object 



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/bunny-ext/qrack/client.rb', line 51

def socket
  return @socket if @socket and (@status == :connected) and not @socket.closed?

  begin
    # Attempt to connect.
    @socket = Bunny::Timer::timeout(@connect_timeout, ConnectionTimeout) do
      TCPSocket.new(host, port)
    end

    if Socket.constants.include? 'TCP_NODELAY'
      @socket.setsockopt Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1
    end

    if @ssl
      require 'openssl' unless defined? OpenSSL::SSL
      @socket = OpenSSL::SSL::SSLSocket.new(@socket)
      @socket.sync_close = true
      @socket.connect
      @socket.post_connection_check(host) if @verify_ssl
      @socket
    end
  rescue => e
    @status = :not_connected
    raise Bunny::ServerDownError, e.message
  end

  set_socket_timeouts

  @socket
end