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.get(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.embargoes.disembargo(id)
default:
um := newUnimplementedMessage(nil, msg)
c.sendMessage(um)
}
return nil
}
func formatMsg(w io.Writer, m rpccapnp.Message) {
switch m.Which() {
case rpccapnp.Message_Which_unimplemented:
fmt.Fprint(w, "unimplemented")
case rpccapnp.Message_Which_abort:
mabort, _ := m.Abort()
reason, _ := mabort.Reason()
fmt.Fprintf(w, "abort type=%v: %s", mabort.Type(), reason)
case rpccapnp.Message_Which_bootstrap:
mboot, _ := m.Bootstrap()
fmt.Fprintf(w, "bootstrap id=%d", mboot.QuestionId())
case rpccapnp.Message_Which_call:
c, _ := m.Call()
fmt.Fprintf(w, "call id=%d target=<", c.QuestionId())
tgt, _ := c.Target()
formatMessageTarget(w, tgt)
fmt.Fprintf(w, "> @%#x/@%d", c.InterfaceId(), c.MethodId())
case rpccapnp.Message_Which_return:
r, _ := m.Return()
fmt.Fprintf(w, "return id=%d", r.AnswerId())
if r.ReleaseParamCaps() {
fmt.Fprint(w, " releaseParamCaps")
}
switch r.Which() {
case rpccapnp.Return_Which_results:
case rpccapnp.Return_Which_exception:
exc, _ := r.Exception()
reason, _ := exc.Reason()
fmt.Fprintf(w, ", exception type=%v: %s", exc.Type(), reason)
case rpccapnp.Return_Which_canceled:
fmt.Fprint(w, ", canceled")
case rpccapnp.Return_Which_resultsSentElsewhere:
fmt.Fprint(w, ", results sent elsewhere")
case rpccapnp.Return_Which_takeFromOtherQuestion:
fmt.Fprint(w, ", results sent elsewhere")
case rpccapnp.Return_Which_acceptFromThirdParty:
fmt.Fprint(w, ", accept from third party")
default:
fmt.Fprintf(w, ", UNKNOWN RESULT which=%v", r.Which())
}
case rpccapnp.Message_Which_finish:
fin, _ := m.Finish()
fmt.Fprintf(w, "finish id=%d", fin.QuestionId())
if fin.ReleaseResultCaps() {
fmt.Fprint(w, " releaseResultCaps")
}
case rpccapnp.Message_Which_resolve:
r, _ := m.Resolve()
fmt.Fprintf(w, "resolve id=%d ", r.PromiseId())
switch r.Which() {
case rpccapnp.Resolve_Which_cap:
fmt.Fprint(w, "capability=")
c, _ := r.Cap()
formatCapDescriptor(w, c)
case rpccapnp.Resolve_Which_exception:
exc, _ := r.Exception()
reason, _ := exc.Reason()
fmt.Fprintf(w, "exception type=%v: %s", exc.Type(), reason)
default:
fmt.Fprintf(w, "UNKNOWN RESOLUTION which=%v", r.Which())
}
case rpccapnp.Message_Which_release:
rel, _ := m.Release()
fmt.Fprintf(w, "release id=%d by %d", rel.Id(), rel.ReferenceCount())
case rpccapnp.Message_Which_disembargo:
de, _ := m.Disembargo()
tgt, _ := de.Target()
fmt.Fprint(w, "disembargo <")
formatMessageTarget(w, tgt)
fmt.Fprint(w, "> ")
dc := de.Context()
switch dc.Which() {
case rpccapnp.Disembargo_context_Which_senderLoopback:
fmt.Fprintf(w, "sender loopback id=%d", dc.SenderLoopback())
case rpccapnp.Disembargo_context_Which_receiverLoopback:
fmt.Fprintf(w, "receiver loopback id=%d", dc.ReceiverLoopback())
case rpccapnp.Disembargo_context_Which_accept:
fmt.Fprint(w, "accept")
case rpccapnp.Disembargo_context_Which_provide:
fmt.Fprintf(w, "provide id=%d", dc.Provide())
default:
fmt.Fprintf(w, "UNKNOWN CONTEXT which=%v", dc.Which())
}
case rpccapnp.Message_Which_obsoleteSave:
fmt.Fprint(w, "save")
case rpccapnp.Message_Which_obsoleteDelete:
fmt.Fprint(w, "delete")
case rpccapnp.Message_Which_provide:
prov, _ := m.Provide()
tgt, _ := prov.Target()
fmt.Fprintf(w, "provide id=%d <", prov.QuestionId())
formatMessageTarget(w, tgt)
fmt.Fprint(w, ">")
case rpccapnp.Message_Which_accept:
acc, _ := m.Accept()
fmt.Fprintf(w, "accept id=%d", acc.QuestionId())
if acc.Embargo() {
fmt.Fprint(w, " with embargo")
}
case rpccapnp.Message_Which_join:
join, _ := m.Join()
tgt, _ := join.Target()
fmt.Fprintf(w, "join id=%d <", join.QuestionId())
formatMessageTarget(w, tgt)
fmt.Fprint(w, ">")
default:
fmt.Fprintf(w, "UNKNOWN MESSAGE which=%v", m.Which())
}
}