rpc: first successful websocket event subscription

consensus/reactor.go

@@ -236,6 +236,7 @@ func (conR *ConsensusReactor) ResetToState(state *sm.State) {
 // implements events.Eventable
 func (conR *ConsensusReactor) SetEventSwitch(evsw *events.EventSwitch) {
 	conR.evsw = evsw
+	conR.conS.SetEventSwitch(evsw)
 }
 
 //--------------------------------------

consensus/state.go

@@ -66,6 +66,7 @@ import (
 	. "github.com/tendermint/tendermint/common"
 	"github.com/tendermint/tendermint/config"
 	. "github.com/tendermint/tendermint/consensus/types"
+	"github.com/tendermint/tendermint/events"
 	mempl "github.com/tendermint/tendermint/mempool"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
@@ -246,6 +247,8 @@ type ConsensusState struct {
 	stagedBlock          *types.Block // Cache last staged block.
 	stagedState          *sm.State    // Cache result of staged block.
 	lastCommitVoteHeight uint         // Last called commitVoteBlock() or saveCommitVoteBlock() on.
+
+	evsw *events.EventSwitch
 }
 
 func NewConsensusState(state *sm.State, blockStore *bc.BlockStore, mempoolReactor *mempl.MempoolReactor) *ConsensusState {
@@ -437,6 +440,8 @@ ACTION_LOOP:
 			if cs.TryFinalizeCommit(rs.Height) {
 				// Now at new height
 				// cs.Step is at RoundStepNewHeight or RoundStepNewRound.
+				// newblock event!
+				cs.evsw.FireEvent("newblock", cs.state.LastBlockHash)
 				scheduleNextAction()
 				continue ACTION_LOOP
 			} else {
@@ -1107,6 +1112,11 @@ func (cs *ConsensusState) saveCommitVoteBlock(block *types.Block, blockParts *ty
 	}
 }
 
+// implements events.Eventable
+func (cs *ConsensusState) SetEventSwitch(evsw *events.EventSwitch) {
+	cs.evsw = evsw
+}
+
 //-----------------------------------------------------------------------------
 
 // total duration of given round

rpc/core/routes.go

@@ -4,10 +4,6 @@ import (
 	"github.com/tendermint/tendermint/rpc"
 )
 
-/*
-TODO: support Call && GetStorage.
-*/
-
 var Routes = map[string]*rpc.RPCFunc{
 	"status":                  rpc.NewRPCFunc(Status, []string{}),
 	"net_info":                rpc.NewRPCFunc(NetInfo, []string{}),

rpc/handlers.go

@@ -26,7 +26,7 @@ func RegisterRPCFuncs(mux *http.ServeMux, funcMap map[string]*RPCFunc) {
 func RegisterEventsHandler(mux *http.ServeMux, evsw *events.EventSwitch) {
 	// websocket endpoint
 	w := NewWebsocketManager(evsw)
-	http.HandleFunc("/events", w.websocketHandler) // 	websocket.Handler(w.eventsHandler))
+	mux.HandleFunc("/events", w.websocketHandler) // 	websocket.Handler(w.eventsHandler))
 }
 
 //-------------------------------------
@@ -191,14 +191,20 @@ func _jsonStringToArg(ty reflect.Type, arg string) (reflect.Value, error) {
 //-----------------------------------------------------------------------------
 // rpc.websocket
 
+const (
+	WSConnectionReaperSeconds = 5
+	MaxFailedSendsSeconds     = 10
+	WriteChanBufferSize       = 10
+)
+
 // for requests coming in
-type WsRequest struct {
+type WSRequest struct {
 	Type  string // subscribe or unsubscribe
 	Event string
 }
 
 // for responses going out
-type WsResponse struct {
+type WSResponse struct {
 	Event string
 	Data  interface{}
 	Error string
@@ -209,7 +215,7 @@ type WsResponse struct {
 type Connection struct {
 	id          string
 	wsCon       *websocket.Conn
-	writeChan   chan WsResponse
+	writeChan   chan WSResponse
 	quitChan    chan struct{}
 	failedSends uint
 }
@@ -219,7 +225,7 @@ func NewConnection(con *websocket.Conn) *Connection {
 	return &Connection{
 		id:        con.RemoteAddr().String(),
 		wsCon:     con,
-		writeChan: make(chan WsResponse, WriteChanBuffer), // buffered. we keep track when its full
+		writeChan: make(chan WSResponse, WriteChanBufferSize), // buffered. we keep track when its full
 	}
 }
 
@@ -276,15 +282,9 @@ func (w *WebsocketManager) handleWebsocket(con *websocket.Conn) {
 	w.write(c)
 }
 
-const (
-	WsConnectionReaperSeconds = 5
-	MaxFailedSendsSeconds     = 10
-	WriteChanBuffer           = 10
-)
-
 // read from the socket and subscribe to or unsubscribe from events
 func (w *WebsocketManager) read(con *Connection) {
-	reaper := time.Tick(time.Second * WsConnectionReaperSeconds)
+	reaper := time.Tick(time.Second * WSConnectionReaperSeconds)
 	for {
 		select {
 		case <-reaper:
@@ -302,17 +302,17 @@ func (w *WebsocketManager) read(con *Connection) {
 				// so kill the connection
 				con.quitChan <- struct{}{}
 			}
-			var req WsRequest
+			var req WSRequest
 			err = json.Unmarshal(in, &req)
 			if err != nil {
 				errStr := fmt.Sprintf("Error unmarshaling data: %s", err.Error())
-				con.writeChan <- WsResponse{Error: errStr}
+				con.writeChan <- WSResponse{Error: errStr}
 			}
 			switch req.Type {
 			case "subscribe":
 				log.Info("New event subscription", "con id", con.id, "event", req.Event)
 				w.ew.AddListenerForEvent(con.id, req.Event, func(msg interface{}) {
-					resp := WsResponse{
+					resp := WSResponse{
 						Event: req.Event,
 						Data:  msg,
 					}
@@ -334,7 +334,7 @@ func (w *WebsocketManager) read(con *Connection) {
 					w.ew.RemoveListener(con.id)
 				}
 			default:
-				con.writeChan <- WsResponse{Error: "Unknown request type: " + req.Type}
+				con.writeChan <- WSResponse{Error: "Unknown request type: " + req.Type}
 			}
 
 		}
@@ -350,7 +350,7 @@ func (w *WebsocketManager) write(con *Connection) {
 			buf := new(bytes.Buffer)
 			binary.WriteJSON(msg, buf, n, err)
 			if *err != nil {
-				log.Error("Failed to write JSON WsResponse", "error", err)
+				log.Error("Failed to write JSON WSResponse", "error", err)
 			} else {
 				//websocket.Message.Send(con.wsCon, buf.Bytes())
 				if err := con.wsCon.WriteMessage(websocket.TextMessage, buf.Bytes()); err != nil {

rpc/http_server.go

@@ -13,6 +13,7 @@ import (
 	"github.com/tendermint/tendermint/binary"
 	. "github.com/tendermint/tendermint/common"
 	"github.com/tendermint/tendermint/events"
+	"github.com/tendermint/tendermint/alert"
 )
 
 func StartHTTPServer(listenAddr string, funcMap map[string]*RPCFunc, evsw *events.EventSwitch) {

rpc/test/client_rpc_test.go

@@ -85,11 +85,10 @@ func TestWSConnect(t *testing.T) {
 	dialer := websocket.DefaultDialer
 	rHeader := http.Header{}
 	_, r, err := dialer.Dial(websocketAddr, rHeader)
+	fmt.Println("respoinse:", r)
 	if err != nil {
 		t.Fatal(err)
 	}
-	fmt.Println("respoinse:", r)
-
 }
 
 func TestWSSubscribe(t *testing.T) {
@@ -99,16 +98,13 @@ func TestWSSubscribe(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	err = con.WriteJSON(rpc.WsRequest{
+	err = con.WriteJSON(rpc.WSRequest{
 		Type:  "subscribe",
 		Event: "newblock",
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	/*
-		typ, p, err := con.ReadMessage()
-		fmt.Println("RESPONSE:", typ, string(p), err)
-	*/
-
+	typ, p, err := con.ReadMessage()
+	fmt.Println("RESPONSE:", typ, string(p), err)
 }