/
stream_reader.go
57 lines (48 loc) · 1.19 KB
/
stream_reader.go
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package remote
import (
"context"
"errors"
"github.com/charlesderek/actor-model/actor"
"github.com/charlesderek/actor-model/log"
)
type streamReader struct {
DRPCRemoteUnimplementedServer
remote *Remote
deserializer Deserializer
}
func newStreamReader(r *Remote) *streamReader {
return &streamReader{
remote: r,
deserializer: ProtoSerializer{},
}
}
func (r *streamReader) Receive(stream DRPCRemote_ReceiveStream) error {
defer func() {
log.Tracew("[STREAM READER] terminated", log.M{})
}()
for {
envelope, err := stream.Recv()
if err != nil {
if errors.Is(err, context.Canceled) {
break
}
log.Errorw("[STREAM READER] receive", log.M{"err": err})
return err
}
for _, msg := range envelope.Messages {
tname := envelope.TypeNames[msg.TypeNameIndex]
payload, err := r.deserializer.Deserialize(msg.Data, tname)
if err != nil {
log.Errorw("[STREAM READER] deserialize error", log.M{"err": err})
return err
}
target := envelope.Targets[msg.TargetIndex]
var sender *actor.PID
if len(envelope.Senders) > 0 {
sender = envelope.Senders[msg.SenderIndex]
}
r.remote.engine.SendLocal(target, payload, sender)
}
}
return nil
}