Class: Tair::Connection

Inherits:
Object
  • Object
show all
Includes:
Log
Defined in:
lib/tair/connection.rb

Constant Summary collapse

TAIR_CHUNK_SIZE = 
1460

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Log

#colorize, included, #log_bytes, #log_time, #logger, #logger_colorize, #tair_bytes_log_file

Constructor Details

#initialize(host, port, opts = {}) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/tair/connection.rb', line 14

def initialize(host, port, opts={})
  @host, @port = host, port.to_i
  @opts = opts || {}
  @timeout = opts[:timeout] || 10.0
end

Instance Attribute Details

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/tair/connection.rb', line 11

def host
  @host
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/tair/connection.rb', line 11

def port
  @port
end

#timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/tair/connection.rb', line 11

def timeout
  @timeout
end

Instance Method Details

#operate(req, &block) ⇒ Object 



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# File 'lib/tair/connection.rb', line 23

def operate(req, &block)

  socket = TCPSocket.new(host, port)
  socket.sendmsg req.encode.to_s

  log_time "transporting data", ::Logger::DEBUG do
    ready = IO.select([socket], nil, nil, timeout)

    if ready
      Tair::Protocol::ResponseHeader.read(socket.recv(12))
      socket.recv(4).tap do |len|
        byte_len = len.unpack('L>').first
        @response = socket.recv(byte_len)
      end
    else
      raise "Socket communications timed out after #{timeout} seconds"
    end
  end

  if block_given?
    return yield(@response)
  else
    return @response
  end

ensure
  socket.close unless socket.closed?
  @response.clear
  @response = nil
end