method

idle

Ruby latest stable (v2_5_5) - 0 notes - Class: Net::IMAP

idle(timeout = nil, &response_handler) public

Sends an IDLE command that waits for notifications of new or expunged messages. Yields responses from the server during the IDLE.

Use #idle_done() to leave IDLE.

If timeout is given, this method returns after timeout seconds passed. timeout can be used for keep-alive. For example, the following code checks the connection for each 60 seconds.

loop do
  imap.idle(60) do |res|
    ...
  end
end

Show source

# File lib/net/imap.rb, line 952
    def idle(timeout = nil, &response_handler)
      raise LocalJumpError, "no block given" unless response_handler

      response = nil

      synchronize do
        tag = Thread.current[:net_imap_tag] = generate_tag
        put_string("#{tag} IDLE#{CRLF}")

        begin
          add_response_handler(response_handler)
          @idle_done_cond = new_cond
          @idle_done_cond.wait(timeout)
          @idle_done_cond = nil
          if @receiver_thread_terminating
            raise @exception || Net::IMAP::Error.new("connection closed")
          end
        ensure
          unless @receiver_thread_terminating
            remove_response_handler(response_handler)
            put_string("DONE#{CRLF}")
            response = get_tagged_response(tag, "IDLE")
          end
        end
      end

      return response
    end

idle

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