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Go IDONTWANT #553

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Go IDONTWANT #553

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3b4d97b
Replace sending channel with the smart rpcQueue
ppopth Jan 13, 2024
773c26f
Implement UrgentPush in the smart rpcQueue
ppopth Feb 22, 2024
1f36b9d
Add IDONTWANT to rpc.proto and trace.proto
ppopth Feb 28, 2024
3e3d6d7
Send IDONTWANT right before validation step
ppopth Feb 29, 2024
dfd81e8
Add urgent flag to SendRPC in trace.proto
ppopth Feb 29, 2024
055ffa0
Test GossipSub IDONWANT sending
ppopth Mar 1, 2024
6b24d35
Send IDONWANT only for large messages
ppopth Mar 2, 2024
ec6ded9
Revert "Add urgent flag to SendRPC in trace.proto"
ppopth Mar 5, 2024
63f5ca7
Handle IDONTWANT control messages
ppopth May 1, 2024
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38 changes: 18 additions & 20 deletions comm.go
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,7 @@ func (p *PubSub) notifyPeerDead(pid peer.ID) {
}
}

func (p *PubSub) handleNewPeer(ctx context.Context, pid peer.ID, outgoing <-chan *RPC) {
func (p *PubSub) handleNewPeer(ctx context.Context, pid peer.ID, outgoing *rpcQueue) {
s, err := p.host.NewStream(p.ctx, pid, p.rt.Protocols()...)
if err != nil {
log.Debug("opening new stream to peer: ", err, pid)
Expand All @@ -132,7 +132,7 @@ func (p *PubSub) handleNewPeer(ctx context.Context, pid peer.ID, outgoing <-chan
}
}

func (p *PubSub) handleNewPeerWithBackoff(ctx context.Context, pid peer.ID, backoff time.Duration, outgoing <-chan *RPC) {
func (p *PubSub) handleNewPeerWithBackoff(ctx context.Context, pid peer.ID, backoff time.Duration, outgoing *rpcQueue) {
select {
case <-time.After(backoff):
p.handleNewPeer(ctx, pid, outgoing)
Expand All @@ -153,7 +153,7 @@ func (p *PubSub) handlePeerDead(s network.Stream) {
p.notifyPeerDead(pid)
}

func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, outgoing <-chan *RPC) {
func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, outgoing *rpcQueue) {
writeRpc := func(rpc *RPC) error {
size := uint64(rpc.Size())

Expand All @@ -172,19 +172,15 @@ func (p *PubSub) handleSendingMessages(ctx context.Context, s network.Stream, ou

defer s.Close()
for {
select {
case rpc, ok := <-outgoing:
if !ok {
return
}
rpc, err := outgoing.Pop(ctx)
if err != nil {
return
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We might want to log the error (at very low priority) if it is not a closed indicator.

}

err := writeRpc(rpc)
if err != nil {
s.Reset()
log.Debugf("writing message to %s: %s", s.Conn().RemotePeer(), err)
return
}
case <-ctx.Done():
err = writeRpc(rpc)
if err != nil {
s.Reset()
log.Debugf("writing message to %s: %s", s.Conn().RemotePeer(), err)
return
}
}
Expand All @@ -206,15 +202,17 @@ func rpcWithControl(msgs []*pb.Message,
ihave []*pb.ControlIHave,
iwant []*pb.ControlIWant,
graft []*pb.ControlGraft,
prune []*pb.ControlPrune) *RPC {
prune []*pb.ControlPrune,
idontwant []*pb.ControlIDontWant) *RPC {
return &RPC{
RPC: pb.RPC{
Publish: msgs,
Control: &pb.ControlMessage{
Ihave: ihave,
Iwant: iwant,
Graft: graft,
Prune: prune,
Ihave: ihave,
Iwant: iwant,
Graft: graft,
Prune: prune,
Idontwant: idontwant,
},
},
}
Expand Down
12 changes: 7 additions & 5 deletions floodsub.go
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,8 @@ func (fs *FloodSubRouter) AcceptFrom(peer.ID) AcceptStatus {
return AcceptAll
}

func (fs *FloodSubRouter) PreValidation([]*Message) {}

func (fs *FloodSubRouter) HandleRPC(rpc *RPC) {}

func (fs *FloodSubRouter) Publish(msg *Message) {
Expand All @@ -83,19 +85,19 @@ func (fs *FloodSubRouter) Publish(msg *Message) {
continue
}

mch, ok := fs.p.peers[pid]
q, ok := fs.p.peers[pid]
if !ok {
continue
}

select {
case mch <- out:
fs.tracer.SendRPC(out, pid)
default:
err := q.Push(out, false)
if err != nil {
log.Infof("dropping message to peer %s: queue full", pid)
fs.tracer.DropRPC(out, pid)
// Drop it. The peer is too slow.
continue
}
fs.tracer.SendRPC(out, pid)
}
}

Expand Down