func (c *Conn) handleDisembargoMessage(msg rpccapnp.Message) error {
d, err := msg.Disembargo()
if err != nil {
return err
}
dtarget, err := d.Target()
if err != nil {
return err
}
switch d.Context().Which() {
case rpccapnp.Disembargo_context_Which_senderLoopback:
id := embargoID(d.Context().SenderLoopback())
if dtarget.Which() != rpccapnp.MessageTarget_Which_promisedAnswer {
return errDisembargoNonImport
}
dpa, err := dtarget.PromisedAnswer()
if err != nil {
return err
}
aid := answerID(dpa.QuestionId())
a := c.answers[aid]
if a == nil {
return errDisembargoMissingAnswer
}
dtrans, err := dpa.Transform()
if err != nil {
return err
}
transform := promisedAnswerOpsToTransform(dtrans)
queued, err := a.queueDisembargo(transform, id, dtarget)
if err != nil {
return err
}
if !queued {
// There's nothing to embargo; everything's been delivered.
resp := newDisembargoMessage(nil, rpccapnp.Disembargo_context_Which_receiverLoopback, id)
rd, _ := resp.Disembargo()
if err := rd.SetTarget(dtarget); err != nil {
return err
}
c.sendMessage(resp)
}
case rpccapnp.Disembargo_context_Which_receiverLoopback:
id := embargoID(d.Context().ReceiverLoopback())
c.disembargo(id)
default:
um := newUnimplementedMessage(nil, msg)
c.sendMessage(um)
}
return nil
}
