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node: refactor package node (#21105)

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This PR significantly changes the APIs for instantiating Ethereum nodes in
a Go program. The new APIs are not backwards-compatible, but we feel that
this is made up for by the much simpler way of registering services on
node.Node. You can find more information and rationale in the design
document: https://gist.github.com/renaynay/5bec2de19fde66f4d04c535fd24f0775.

There is also a new feature in Node's Go API: it is now possible to
register arbitrary handlers on the user-facing HTTP server. In geth, this
facility is used to enable GraphQL.

There is a single minor change relevant for geth users in this PR: The
GraphQL API is no longer available separately from the JSON-RPC HTTP
server. If you want GraphQL, you need to enable it using the
./geth --http --graphql flag combination.

The --graphql.port and --graphql.addr flags are no longer available.
This commit is contained in:
rene
2020-08-03 19:40:46 +02:00
committed by GitHub
parent b2b14e6ce3
commit c0c01612e9
63 changed files with 2606 additions and 2887 deletions
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28
p2p/simulations/network_test.go
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@ -41,8 +41,8 @@ func TestSnapshot(t *testing.T) {
// create snapshot from ring network
// this is a minimal service, whose protocol will take exactly one message OR close of connection before quitting
adapter := adapters.NewSimAdapter(adapters.Services{
"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) {
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"noopwoop": func(ctx *adapters.ServiceContext, stack *node.Node) (node.Lifecycle, error) {
return NewNoopService(nil), nil
},
})
@ -165,8 +165,8 @@ OUTER:
// PART II
// load snapshot and verify that exactly same connections are formed
adapter = adapters.NewSimAdapter(adapters.Services{
"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) {
adapter = adapters.NewSimAdapter(adapters.LifecycleConstructors{
"noopwoop": func(ctx *adapters.ServiceContext, stack *node.Node) (node.Lifecycle, error) {
return NewNoopService(nil), nil
},
})
@ -256,8 +256,8 @@ OuterTwo:
t.Run("conns after load", func(t *testing.T) {
// Create new network.
n := NewNetwork(
adapters.NewSimAdapter(adapters.Services{
"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) {
adapters.NewSimAdapter(adapters.LifecycleConstructors{
"noopwoop": func(ctx *adapters.ServiceContext, stack *node.Node) (node.Lifecycle, error) {
return NewNoopService(nil), nil
},
}),
@ -288,7 +288,7 @@ OuterTwo:
// with each other and that a snapshot fully represents the desired topology
func TestNetworkSimulation(t *testing.T) {
// create simulation network with 20 testService nodes
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -437,7 +437,7 @@ func createTestNodesWithProperty(property string, count int, network *Network) (
// It then tests again whilst excluding a node ID from being returned.
// If a node ID is not returned, or more node IDs than expected are returned, the test fails.
func TestGetNodeIDs(t *testing.T) {
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -486,7 +486,7 @@ func TestGetNodeIDs(t *testing.T) {
// It then tests again whilst excluding a node from being returned.
// If a node is not returned, or more nodes than expected are returned, the test fails.
func TestGetNodes(t *testing.T) {
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -534,7 +534,7 @@ func TestGetNodes(t *testing.T) {
// TestGetNodesByID creates a set of nodes and attempts to retrieve a subset of them by ID
// If a node is not returned, or more nodes than expected are returned, the test fails.
func TestGetNodesByID(t *testing.T) {
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -579,7 +579,7 @@ func TestGetNodesByID(t *testing.T) {
// GetNodesByProperty is then checked for correctness by comparing the nodes returned to those initially created.
// If a node with a property is not found, or more nodes than expected are returned, the test fails.
func TestGetNodesByProperty(t *testing.T) {
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -624,7 +624,7 @@ func TestGetNodesByProperty(t *testing.T) {
// GetNodeIDsByProperty is then checked for correctness by comparing the node IDs returned to those initially created.
// If a node ID with a property is not found, or more nodes IDs than expected are returned, the test fails.
func TestGetNodeIDsByProperty(t *testing.T) {
adapter := adapters.NewSimAdapter(adapters.Services{
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"test": newTestService,
})
network := NewNetwork(adapter, &NetworkConfig{
@ -705,8 +705,8 @@ func benchmarkMinimalServiceTmp(b *testing.B) {
// this is a minimal service, whose protocol will close a channel upon run of protocol
// making it possible to bench the time it takes for the service to start and protocol actually to be run
protoCMap := make(map[enode.ID]map[enode.ID]chan struct{})
adapter := adapters.NewSimAdapter(adapters.Services{
"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) {
adapter := adapters.NewSimAdapter(adapters.LifecycleConstructors{
"noopwoop": func(ctx *adapters.ServiceContext, stack *node.Node) (node.Lifecycle, error) {
protoCMap[ctx.Config.ID] = make(map[enode.ID]chan struct{})
svc := NewNoopService(protoCMap[ctx.Config.ID])
return svc, nil