gossipsub: initiate topic table extension

Author: ppopth

extensions.go

@@ -6,13 +6,17 @@ import (
 )
 
 type PeerExtensions struct {
-	TestExtension bool
+	TestExtension       bool
+	TopicTableExtension bool
 }
 
 type TestExtensionConfig struct {
 	OnReceiveTestExtension func(from peer.ID)
 }
 
+type TopicTableExtensionConfig struct {
+}
+
 func WithTestExtension(c TestExtensionConfig) Option {
 	return func(ps *PubSub) error {
 		if rt, ok := ps.rt.(*GossipSubRouter); ok {
@@ -26,6 +30,12 @@ func WithTestExtension(c TestExtensionConfig) Option {
 	}
 }
 
+func WithTopicTableExtension(c TopicTableExtensionConfig) Option {
+	return func(ps *PubSub) error {
+		return nil
+	}
+}
+
 func hasPeerExtensions(rpc *RPC) bool {
 	if rpc != nil && rpc.Control != nil && rpc.Control.Extensions != nil {
 		return true
@@ -60,7 +70,8 @@ type extensionsState struct {
 	reportMisbehavior func(peer.ID)
 	sendRPC           func(p peer.ID, r *RPC, urgent bool)
 
-	testExtension *testExtension
+	testExtension       *testExtension
+	topicTableExtension *topicTableExtension
 }
 
 func newExtensionsState(myExtensions PeerExtensions, reportMisbehavior func(peer.ID), sendRPC func(peer.ID, *RPC, bool)) *extensionsState {

topictable_extension.go

@@ -0,0 +1,4 @@
+package pubsub
+
+type topicTableExtension struct {
+}