move atomic gossip

RELEASES.md

@@ -2,6 +2,7 @@
 
 ## [v0.14.1](https://github.com/ava-labs/coreth/releases/tag/v0.14.1)
 - Remove API eth_getAssetBalance that was used to query ANT balances (deprecated since v0.10.0)
+- Remove legacy gossip handler and metrics (deprecated since v0.10.0)
 
 ## [v0.14.0](https://github.com/ava-labs/coreth/releases/tag/v0.14.0)
 - Minor version update to correspond to avalanchego v1.12.0 / Etna.

go.mod

@@ -4,7 +4,7 @@ go 1.22.8
 
 require (
 	github.com/VictoriaMetrics/fastcache v1.12.1
-	github.com/ava-labs/avalanchego v1.12.1-0.20241209214115-1dc4192013aa
+	github.com/ava-labs/avalanchego v1.12.2-0.20241224181600-fade5be3051d
 	github.com/cespare/cp v0.1.0
 	github.com/crate-crypto/go-ipa v0.0.0-20231025140028-3c0104f4b233
 	github.com/davecgh/go-spew v1.1.1
@@ -38,11 +38,11 @@ require (
 	github.com/urfave/cli/v2 v2.25.7
 	go.uber.org/goleak v1.3.0
 	go.uber.org/mock v0.4.0
-	golang.org/x/crypto v0.26.0
+	golang.org/x/crypto v0.31.0
 	golang.org/x/exp v0.0.0-20231127185646-65229373498e
-	golang.org/x/sync v0.8.0
-	golang.org/x/sys v0.24.0
-	golang.org/x/text v0.17.0
+	golang.org/x/sync v0.10.0
+	golang.org/x/sys v0.28.0
+	golang.org/x/text v0.21.0
 	golang.org/x/time v0.3.0
 	google.golang.org/protobuf v1.34.2
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
@@ -121,7 +121,7 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
 	golang.org/x/net v0.28.0 // indirect
-	golang.org/x/term v0.23.0 // indirect
+	golang.org/x/term v0.27.0 // indirect
 	gonum.org/v1/gonum v0.11.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240604185151-ef581f913117 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240827150818-7e3bb234dfed // indirect

go.sum

@@ -54,8 +54,10 @@ github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/ava-labs/avalanchego v1.12.1-0.20241209214115-1dc4192013aa h1:8eSy+tegp9Kq2zft54wk0FyWU87utdrVwsj9EBIb/NA=
-github.com/ava-labs/avalanchego v1.12.1-0.20241209214115-1dc4192013aa/go.mod h1:256D2s2FIKo07uUeY25uDXFuqBo6TeWIJqeEA+Xchwk=
+github.com/ava-labs/avalanchego v1.12.2-0.20241224161435-3998475d671d h1:QCtjS4ANcNfCdL6Z2sKpanDVJNt1MU0bUyVdW0g5zuU=
+github.com/ava-labs/avalanchego v1.12.2-0.20241224161435-3998475d671d/go.mod h1:cDoT0Hq3P+/XfCyVvzrBj66yoid2I5LnMuj7LIkap+o=
+github.com/ava-labs/avalanchego v1.12.2-0.20241224181600-fade5be3051d h1:iPlsqC9pIy4emCo8wyI/VmVmfljpzmw58ZqahVdcehI=
+github.com/ava-labs/avalanchego v1.12.2-0.20241224181600-fade5be3051d/go.mod h1:dKawab3nXqwI7ZcOFatTOv//l1V0t8MRBnhXoOqbN4E=
 github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
@@ -601,8 +603,8 @@ golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
-golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -708,8 +710,8 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
-golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
+golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -776,12 +778,12 @@ golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
-golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
+golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.23.0 h1:F6D4vR+EHoL9/sWAWgAR1H2DcHr4PareCbAaCo1RpuU=
-golang.org/x/term v0.23.0/go.mod h1:DgV24QBUrK6jhZXl+20l6UWznPlwAHm1Q1mGHtydmSk=
+golang.org/x/term v0.27.0 h1:WP60Sv1nlK1T6SupCHbXzSaN0b9wUmsPoRS9b61A23Q=
+golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -792,8 +794,8 @@ golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
-golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
-golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
+golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

peer/network.go

@@ -56,9 +56,6 @@ type Network interface {
 	// by calling OnPeerConnected for each peer
 	Shutdown()
 
-	// SetGossipHandler sets the provided gossip handler as the gossip handler
-	SetGossipHandler(handler message.GossipHandler)
-
 	// SetRequestHandler sets the provided request handler as the request handler
 	SetRequestHandler(handler message.RequestHandler)
 
@@ -87,7 +84,6 @@ type network struct {
 	appSender                  common.AppSender          // avalanchego AppSender for sending messages
 	codec                      codec.Manager             // Codec used for parsing messages
 	appRequestHandler          message.RequestHandler    // maps request type => handler
-	gossipHandler              message.GossipHandler     // maps gossip type => handler
 	peers                      *peerTracker              // tracking of peers & bandwidth
 	appStats                   stats.RequestHandlerStats // Provide request handler metrics
 
@@ -110,7 +106,6 @@ func NewNetwork(p2pNetwork *p2p.Network, appSender common.AppSender, codec codec
 		outstandingRequestHandlers: make(map[uint32]message.ResponseHandler),
 		activeAppRequests:          semaphore.NewWeighted(maxActiveAppRequests),
 		p2pNetwork:                 p2pNetwork,
-		gossipHandler:              message.NoopMempoolGossipHandler{},
 		appRequestHandler:          message.NoopRequestHandler{},
 		peers:                      NewPeerTracker(),
 		appStats:                   stats.NewRequestHandlerStats(),
@@ -345,14 +340,7 @@ func (n *network) markRequestFulfilled(requestID uint32) (message.ResponseHandle
 // from a peer. An error returned by this function is treated as fatal by the
 // engine.
 func (n *network) AppGossip(ctx context.Context, nodeID ids.NodeID, gossipBytes []byte) error {
-	var gossipMsg message.GossipMessage
-	if _, err := n.codec.Unmarshal(gossipBytes, &gossipMsg); err != nil {
-		log.Debug("forwarding AppGossip to SDK network", "nodeID", nodeID, "gossipLen", len(gossipBytes), "err", err)
-		return n.p2pNetwork.AppGossip(ctx, nodeID, gossipBytes)
-	}
-
-	log.Debug("processing AppGossip from node", "nodeID", nodeID, "msg", gossipMsg)
-	return gossipMsg.Handle(n.gossipHandler, nodeID)
+	return n.p2pNetwork.AppGossip(ctx, nodeID, gossipBytes)
 }
 
 // Connected adds the given nodeID to the peer list so that it can receive messages
@@ -407,13 +395,6 @@ func (n *network) Shutdown() {
 	n.closed.Set(true)         // mark network as closed
 }
 
-func (n *network) SetGossipHandler(handler message.GossipHandler) {
-	n.lock.Lock()
-	defer n.lock.Unlock()
-
-	n.gossipHandler = handler
-}
-
 func (n *network) SetRequestHandler(handler message.RequestHandler) {
 	n.lock.Lock()
 	defer n.lock.Unlock()

peer/network_test.go

@@ -30,6 +30,10 @@ import (
 	"github.com/ava-labs/avalanchego/version"
 )
 
+const (
+	codecVersion uint16 = 0
+)
+
 var (
 	defaultPeerVersion = &version.Application{
 		Major: 1,
@@ -46,9 +50,7 @@ var (
 	_ message.RequestHandler = &HelloGreetingRequestHandler{}
 	_ message.RequestHandler = &testRequestHandler{}
 
-	_ common.AppSender      = testAppSender{}
-	_ message.GossipMessage = HelloGossip{}
-	_ message.GossipHandler = &testGossipHandler{}
+	_ common.AppSender = testAppSender{}
 
 	_ p2p.Handler = &testSDKHandler{}
 )
@@ -393,7 +395,7 @@ func TestRequestMinVersion(t *testing.T) {
 			go func() {
 				time.Sleep(200 * time.Millisecond)
 				atomic.AddUint32(&callNum, 1)
-				responseBytes, err := codecManager.Marshal(message.Version, TestMessage{Message: "this is a response"})
+				responseBytes, err := codecManager.Marshal(codecVersion, TestMessage{Message: "this is a response"})
 				if err != nil {
 					panic(err)
 				}
@@ -503,15 +505,15 @@ func TestHandleInvalidMessages(t *testing.T) {
 	p2pNetwork, err := p2p.NewNetwork(logging.NoLog{}, sender, prometheus.NewRegistry(), "")
 	require.NoError(t, err)
 	clientNetwork := NewNetwork(p2pNetwork, sender, codecManager, ids.EmptyNodeID, 1)
-	clientNetwork.SetGossipHandler(message.NoopMempoolGossipHandler{})
 	clientNetwork.SetRequestHandler(&testRequestHandler{})
 
 	assert.NoError(t, clientNetwork.Connected(context.Background(), nodeID, defaultPeerVersion))
 
 	defer clientNetwork.Shutdown()
 
 	// Ensure a valid gossip message sent as any App specific message type does not trigger a fatal error
-	gossipMsg, err := buildGossip(codecManager, HelloGossip{Msg: "hello there!"})
+	marshaller := helloGossipMarshaller{codec: codecManager}
+	gossipMsg, err := marshaller.MarshalGossip(&HelloGossip{Msg: "hello there!"})
 	assert.NoError(t, err)
 
 	// Ensure a valid request message sent as any App specific message type does not trigger a fatal error
@@ -552,7 +554,6 @@ func TestNetworkPropagatesRequestHandlerError(t *testing.T) {
 	p2pNetwork, err := p2p.NewNetwork(logging.NoLog{}, nil, prometheus.NewRegistry(), "")
 	require.NoError(t, err)
 	clientNetwork := NewNetwork(p2pNetwork, sender, codecManager, ids.EmptyNodeID, 1)
-	clientNetwork.SetGossipHandler(message.NoopMempoolGossipHandler{})
 	clientNetwork.SetRequestHandler(&testRequestHandler{err: errors.New("fail")}) // Return an error from the request handler
 
 	assert.NoError(t, clientNetwork.Connected(context.Background(), nodeID, defaultPeerVersion))
@@ -615,18 +616,14 @@ func buildCodec(t *testing.T, types ...interface{}) codec.Manager {
 	for _, typ := range types {
 		assert.NoError(t, c.RegisterType(typ))
 	}
-	assert.NoError(t, codecManager.RegisterCodec(message.Version, c))
+	assert.NoError(t, codecManager.RegisterCodec(codecVersion, c))
 	return codecManager
 }
 
 // marshalStruct is a helper method used to marshal an object as `interface{}`
 // so that the codec is able to include the TypeID in the resulting bytes
 func marshalStruct(codec codec.Manager, obj interface{}) ([]byte, error) {
-	return codec.Marshal(message.Version, &obj)
-}
-
-func buildGossip(codec codec.Manager, msg message.GossipMessage) ([]byte, error) {
-	return codec.Marshal(message.Version, &msg)
+	return codec.Marshal(codecVersion, &obj)
 }
 
 type testAppSender struct {
@@ -696,11 +693,11 @@ type HelloGreetingRequestHandler struct {
 }
 
 func (h *HelloGreetingRequestHandler) HandleHelloRequest(ctx context.Context, nodeID ids.NodeID, requestID uint32, request *HelloRequest) ([]byte, error) {
-	return h.codec.Marshal(message.Version, HelloResponse{Response: "Hi"})
+	return h.codec.Marshal(codecVersion, HelloResponse{Response: "Hi"})
 }
 
 func (h *HelloGreetingRequestHandler) HandleGreetingRequest(ctx context.Context, nodeID ids.NodeID, requestID uint32, request *GreetingRequest) ([]byte, error) {
-	return h.codec.Marshal(message.Version, GreetingResponse{Greet: "Hey there"})
+	return h.codec.Marshal(codecVersion, GreetingResponse{Greet: "Hey there"})
 }
 
 type TestMessage struct {
@@ -719,34 +716,22 @@ type HelloGossip struct {
 	Msg string `serialize:"true"`
 }
 
-func (h HelloGossip) Handle(handler message.GossipHandler, nodeID ids.NodeID) error {
-	return handler.HandleEthTxs(nodeID, message.EthTxsGossip{})
+func (tx *HelloGossip) GossipID() ids.ID {
+	return ids.FromStringOrPanic(tx.Msg)
 }
 
-func (h HelloGossip) String() string {
-	return fmt.Sprintf("HelloGossip(%s)", h.Msg)
-}
-
-func (h HelloGossip) Bytes() []byte {
-	// no op
-	return nil
-}
-
-type testGossipHandler struct {
-	received bool
-	nodeID   ids.NodeID
+type helloGossipMarshaller struct {
+	codec codec.Manager
 }
 
-func (t *testGossipHandler) HandleAtomicTx(nodeID ids.NodeID, msg message.AtomicTxGossip) error {
-	t.received = true
-	t.nodeID = nodeID
-	return nil
+func (g helloGossipMarshaller) MarshalGossip(tx *HelloGossip) ([]byte, error) {
+	return g.codec.Marshal(0, tx)
 }
 
-func (t *testGossipHandler) HandleEthTxs(nodeID ids.NodeID, msg message.EthTxsGossip) error {
-	t.received = true
-	t.nodeID = nodeID
-	return nil
+func (g helloGossipMarshaller) UnmarshalGossip(bytes []byte) (*HelloGossip, error) {
+	h := &HelloGossip{}
+	_, err := g.codec.Unmarshal(bytes, h)
+	return h, err
 }
 
 type testRequestHandler struct {

plugin/evm/admin.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/ava-labs/avalanchego/api"
 	"github.com/ava-labs/avalanchego/utils/profiler"
+	"github.com/ava-labs/coreth/plugin/evm/client"
 	"github.com/ethereum/go-ethereum/log"
 )
 
@@ -65,11 +66,7 @@ func (p *Admin) LockProfile(_ *http.Request, _ *struct{}, _ *api.EmptyReply) err
 	return p.profiler.LockProfile()
 }
 
-type SetLogLevelArgs struct {
-	Level string `json:"level"`
-}
-
-func (p *Admin) SetLogLevel(_ *http.Request, args *SetLogLevelArgs, reply *api.EmptyReply) error {
+func (p *Admin) SetLogLevel(_ *http.Request, args *client.SetLogLevelArgs, reply *api.EmptyReply) error {
 	log.Info("EVM: SetLogLevel called", "logLevel", args.Level)
 
 	p.vm.ctx.Lock.Lock()
@@ -81,11 +78,7 @@ func (p *Admin) SetLogLevel(_ *http.Request, args *SetLogLevelArgs, reply *api.E
 	return nil
 }
 
-type ConfigReply struct {
-	Config *Config `json:"config"`
-}
-
-func (p *Admin) GetVMConfig(_ *http.Request, _ *struct{}, reply *ConfigReply) error {
+func (p *Admin) GetVMConfig(_ *http.Request, _ *struct{}, reply *client.ConfigReply) error {
 	reply.Config = &p.vm.config
 	return nil
 }

plugin/evm/codec.go → plugin/evm/atomic/codec.go

@@ -1,9 +1,10 @@
 // (c) 2019-2021, Ava Labs, Inc. All rights reserved.
 // See the file LICENSE for licensing terms.
 
-package evm
+package atomic
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/ava-labs/avalanchego/codec"
@@ -12,8 +13,14 @@ import (
 	"github.com/ava-labs/avalanchego/vms/secp256k1fx"
 )
 
-// Codec does serialization and deserialization
-var Codec codec.Manager
+const CodecVersion = uint16(0)
+
+var (
+	// Codec does serialization and deserialization
+	Codec codec.Manager
+
+	errMissingAtomicTxs = errors.New("cannot build a block with non-empty extra data and zero atomic transactions")
+)
 
 func init() {
 	Codec = codec.NewDefaultManager()
@@ -35,7 +42,7 @@ func init() {
 		lc.RegisterType(&secp256k1fx.Credential{}),
 		lc.RegisterType(&secp256k1fx.Input{}),
 		lc.RegisterType(&secp256k1fx.OutputOwners{}),
-		Codec.RegisterCodec(codecVersion, lc),
+		Codec.RegisterCodec(CodecVersion, lc),
 	)
 	if errs.Errored() {
 		panic(errs.Err)