Class: IRuby::SessionAdapter::FfirzmqAdapter

Inherits:
BaseAdapter
  • Object
show all
Defined in:
lib/iruby/session_adapter/ffirzmq_adapter.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BaseAdapter

available?, #close_socket, #initialize, #make_pub_socket, #make_rep_socket, #make_router_socket, #name

Constructor Details

This class inherits a constructor from IRuby::SessionAdapter::BaseAdapter

Class Method Details

.load_requirements ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 4

def self.load_requirements
  require 'ffi-rzmq'
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 44

def close
  @zmq_context&.terminate
  @zmq_context = nil
end

#heartbeat_loop(sock) ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 28

def heartbeat_loop(sock)
  # Avoid ZMQ::Device in #357; call libzmq's proxy directly.
  rc = LibZMQ.zmq_proxy(sock.socket, sock.socket, nil)
  errno = ZMQ::Util.errno
  return if rc == -1 && (zmq_errno?(:ETERM, errno) || zmq_errno?(:EINTR, errno))

  ZMQ::Util.error_check('zmq_proxy', rc)
end

#recv(sock) ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 14

def recv(sock)
  msg = []
  while msg.empty? || sock.more_parts?
    begin
      frame = ''
      rc = sock.recv_string(frame)
      ZMQ::Util.error_check('zmq_msg_recv', rc)
      msg << frame
    rescue
    end
  end
  msg
end

#send(sock, data) ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 8

def send(sock, data)
  data.each_with_index do |part, i|
    sock.send_string(part, i == data.size - 1 ? 0 : ZMQ::SNDMORE)
  end
end

#shutdown_heartbeat(sock) ⇒ Object 



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# File 'lib/iruby/session_adapter/ffirzmq_adapter.rb', line 37

def shutdown_heartbeat(sock)
  if @zmq_context&.context && LibZMQ.respond_to?(:zmq_ctx_shutdown)
    LibZMQ.zmq_ctx_shutdown(@zmq_context.context)
  end
  close_socket(sock)
end