Properly way to check for closed connection

[ltpquang]

Hi there, is there any way to check if a Conn is valid before sending the message? I'm currently doing as follow

err := conn.Send(queueName, "text/plain", message)
if err != nil && err.Error() == "connection already closed" {
	// report error
}

The Conn struct has closed property but since it is not exposed and have no access function, I have no way to check the connection before sending.

[worg]

Currently there's no other way, because there might happen that a frame fails [therefore closing the connection according to the spec] during the sending of the message, even if we exposed the closed property it might fail after the closed check and before the actual sending of the frame.

[tahseenjamal]

You can unmarshal Conn to a struct similar to that of Conn and then read the bool closed value. So no need to be dependent on 'closed' to be exposed