func (q *queuePoller) drainMessages(ctx context.Context) error {
service := sqs.New(q.cfg)
for {
select {
case <-ctx.Done():
return ctx.Err()
case <-q.closeSignal:
return nil
default:
}
msg := sqs.ReceiveMessageInput{
QueueUrl: &q.queueURL,
WaitTimeSeconds: &q.waitTimeSeconds,
}
if q.visibilityTimeout != 0 {
msg.VisibilityTimeout = &q.visibilityTimeout
}
resp, err := service.ReceiveMessage(&msg)
if err != nil {
return wraperr(err, "cannot receive messagges from queue")
}
if err := q.forwardMsgs(ctx, resp); err != nil {
return err
}
}
}
