pond: Allow to stop full nodes

lotuspond/api.go

@@ -17,9 +17,17 @@ import (
 	"golang.org/x/xerrors"
 )
 
+type NodeState int
+
+const (
+	NodeUnknown = iota
+	NodeRunning
+	NodeStopped
+)
+
 type api struct {
 	cmds      int32
-	running   map[int32]runningNode
+	running   map[int32]*runningNode
 	runningLk sync.Mutex
 	genesis   string
 }
@@ -28,6 +36,7 @@ type nodeInfo struct {
 	Repo    string
 	ID      int32
 	ApiPort int32
+	State   NodeState
 
 	FullNode string // only for storage nodes
 	Storage  bool
@@ -80,18 +89,27 @@ func (api *api) Spawn() (nodeInfo, error) {
 		Repo:    dir,
 		ID:      id,
 		ApiPort: 2500 + id,
+		State:   NodeRunning,
 	}
 
 	api.runningLk.Lock()
-	api.running[id] = runningNode{
+	api.running[id] = &runningNode{
 		cmd:  cmd,
 		meta: info,
 
 		mux: mux,
 		stop: func() {
-			defer close(mux.stop)
+			cmd.Process.Signal(os.Interrupt)
-			defer errlogfile.Close()
+			cmd.Process.Wait()
-			defer logfile.Close()
+
+			api.runningLk.Lock()
+			api.running[id].meta.State = NodeStopped
+			api.runningLk.Unlock()
+
+			logfile.Close()
+			errlogfile.Close()
+
+			close(mux.stop)
 		},
 	}
 	api.runningLk.Unlock()
@@ -180,21 +198,30 @@ func (api *api) SpawnStorage(fullNodeRepo string) (nodeInfo, error) {
 		Repo:    dir,
 		ID:      id,
 		ApiPort: 2500 + id,
+		State:   NodeRunning,
 
 		FullNode: fullNodeRepo,
 		Storage:  true,
 	}
 
 	api.runningLk.Lock()
-	api.running[id] = runningNode{
+	api.running[id] = &runningNode{
 		cmd:  cmd,
 		meta: info,
 
 		mux: mux,
 		stop: func() {
-			defer close(mux.stop)
+			cmd.Process.Signal(os.Interrupt)
-			defer errlogfile.Close()
+			cmd.Process.Wait()
-			defer logfile.Close()
+
+			api.runningLk.Lock()
+			api.running[id].meta.State = NodeStopped
+			api.runningLk.Unlock()
+
+			logfile.Close()
+			errlogfile.Close()
+
+			close(mux.stop)
 		},
 	}
 	api.runningLk.Unlock()
@@ -243,6 +270,19 @@ func (api *api) CreateRandomFile(size int64) (string, error) {
 	return tf.Name(), nil
 }
 
+func (api *api) Stop(node int32) error {
+	api.runningLk.Lock()
+	nd, ok := api.running[node]
+	api.runningLk.Unlock()
+
+	if !ok {
+		return nil
+	}
+
+	nd.stop()
+	return nil
+}
+
 type client struct {
 	Nodes func() []nodeInfo
 }

lotuspond/front/src/Address.js

@@ -26,8 +26,10 @@ class Address extends React.Component {
 
   componentDidMount() {
     this.refresh()
-    if(!this.props.ts)
+    if(!this.props.ts) {
-      setInterval(this.refresh, 2050)
+      let updates = setInterval(this.refresh, 2050)
+      this.props.client.on('close', () => clearInterval(updates))
+    }
   }
 
   async refresh() {

lotuspond/front/src/FullNode.js

@@ -19,9 +19,11 @@ class FullNode extends React.Component {
     this.add1k = this.add1k.bind(this)
     this.explorer = this.explorer.bind(this)
     this.client = this.client.bind(this)
+    this.stop = this.stop.bind(this)
 
     this.loadInfo()
-    setInterval(this.loadInfo, 2050)
+    let updates = setInterval(this.loadInfo, 2050)
+    this.props.client.on('close', () => clearInterval(updates))
   }
 
   async loadInfo() {
@@ -95,6 +97,10 @@ class FullNode extends React.Component {
     this.props.mountWindow((onClose) => <Client onClose={onClose} node={this.props.node} client={this.props.client} pondClient={this.props.pondClient} mountWindow={this.props.mountWindow}/>)
   }
 
+  async stop() {
+    await this.props.stop()
+  }
+
   render() {
     let runtime = <div></div>
 
@@ -165,7 +171,8 @@ class FullNode extends React.Component {
       <Cristal
         title={"Node " + this.props.node.ID}
         initialPosition={{x: this.props.node.ID*30, y: this.props.node.ID * 30}}
-        initialSize={{width: 690, height: 300}} >
+        initialSize={{width: 690, height: 300}}
+        onClose={this.stop} >
         <div className="CristalScroll">
           <div className="FullNode">
             {runtime}

lotuspond/front/src/NodeList.js

@@ -9,6 +9,8 @@ import pushMessage from "./chain/send";
 import Logs from "./Logs";
 import StorageNodeInit from "./StorageNodeInit";
 
+const [NodeUnknown, NodeRunning, NodeStopped] = [0, 1, 2]
+
 class NodeList extends React.Component {
   constructor(props) {
     super(props)
@@ -53,6 +55,7 @@ class NodeList extends React.Component {
                       give1k={this.transfer1kFrom1}
                       mountWindow={this.props.mountWindow}
                       spawnStorageNode={this.spawnStorageNode}
+                      stop={this.stopNode(node.ID, onClose)}
             />)
       } else {
         const fullId = await this.props.client.call('Pond.FullID', [node.ID])
@@ -72,7 +75,7 @@ class NodeList extends React.Component {
     const nodes = nds.reduce((o, i) => {o[i.ID] = i; return o}, {})
     console.log('nds', nodes)
 
-    Object.keys(nodes).map(n => nodes[n]).forEach(n => this.mountNode(n))
+    Object.keys(nodes).map(n => nodes[n]).filter(n => n.State === NodeRunning).forEach(n => this.mountNode(n))
 
     this.setState({existingLoaded: true, nodes: nodes})
   }
@@ -114,6 +117,22 @@ class NodeList extends React.Component {
     //this.setState(state => ({nodes: {...state.nodes, [node.ID]: node}}))
   }
 
+  stopNode = (id, closeWindow) => async () => {
+    this.state.nodes[id].conn.close()
+    await this.props.client.call('Pond.Stop', [id])
+    closeWindow()
+    this.setState(prev => ({
+      nodes: {
+        ...prev.nodes,
+        [id]: {...(prev.nodes[id]), State: NodeStopped, conn: undefined}
+      }
+    }))
+  }
+
+  startNode = (id) => async () => {
+
+  }
+
   connMgr() {
     this.setState({showConnMgr: true})
   }
@@ -155,6 +174,9 @@ class NodeList extends React.Component {
                 info = <span>{nd.peerid}</span>
                 logs = <a href='#' onClick={() => this.props.mountWindow(cl => <Logs node={nd.ID} onClose={cl}/>)}>[logs]</a>
               }
+              if (nd.State === NodeStopped) {
+                info = <span>[stopped] <a href="#" onClick={this.startNode(n)}>[START]</a></span>
+              }
 
               return <div key={n}>
                 {n} {type} {logs} {info}

lotuspond/main.go

@@ -130,7 +130,7 @@ var runCmd = &cli.Command{
 	Usage: "run lotuspond daemon",
 	Action: func(cctx *cli.Context) error {
 		rpcServer := jsonrpc.NewServer()
-		a := &api{running: map[int32]runningNode{}}
+		a := &api{running: map[int32]*runningNode{}}
 		rpcServer.Register("Pond", a)
 
 		http.Handle("/", http.FileServer(http.Dir("lotuspond/front/build")))