// sender pops messages from a queue and sends them.
func (b *broker) sender(sender electron.Sender) {
q := b.queues.Get(sender.Source())
for {
m, ok := <-q
if !ok { // Queue closed
return
}
if err := sender.SendForget(m); err == nil {
util.Debugf("%s send: %s", sender, util.FormatMessage(m))
} else {
util.Debugf("%s error: %s", sender, err)
q <- m // Put it back on the queue.
return
}
}
}
// sender pops messages from a queue and sends them.
func (c *connection) sender(sender electron.Sender) {
q := c.broker.queues.Get(sender.Source())
for {
if sender.Error() != nil {
util.Debugf("%v closed: %v", sender, sender.Error())
return
}
select {
case m := <-q:
util.Debugf("%v: sent %v", sender, util.FormatMessage(m))
sm := sentMessage{m, q}
c.broker.sent <- sm // Record sent message
sender.SendAsync(m, c.broker.acks, sm) // Receive outcome on c.broker.acks with Value sm
case <-sender.Done(): // break if sender is closed
break
}
}
}