Fix #2881, Fix #2879

src/client/app/common/scripts/stream.ts

@@ -11,6 +11,7 @@ export default class Stream extends EventEmitter {
 	private stream: ReconnectingWebsocket;
 	private state: string;
 	private buffer: any[];
+	private sharedConnectionPools: Pool[] = [];
 	private sharedConnections: SharedConnection[] = [];
 	private nonSharedConnections: NonSharedConnection[] = [];
 
@@ -29,22 +30,21 @@ export default class Stream extends EventEmitter {
 	}
 
 	public useSharedConnection = (channel: string): SharedConnection => {
-		const existConnection = this.sharedConnections.find(c => c.channel === channel);
+		let pool = this.sharedConnectionPools.find(p => p.channel === channel);
 
-		if (existConnection) {
+		if (pool == null) {
-			existConnection.use();
+			pool = new Pool(this, channel);
-			return existConnection;
+			this.sharedConnectionPools.push(pool);
-		} else {
+		}
-			const connection = new SharedConnection(this, channel);
+
-			connection.use();
+		const connection = new SharedConnection(this, channel, pool);
 		this.sharedConnections.push(connection);
 		return connection;
 	}
-	}
 
 	@autobind
 	public removeSharedConnection(connection: SharedConnection) {
-		this.sharedConnections = this.sharedConnections.filter(c => c.id !== connection.id);
+		this.sharedConnections = this.sharedConnections.filter(c => c !== connection);
 	}
 
 	public connectToChannel = (channel: string, params?: any): NonSharedConnection => {
@@ -55,7 +55,7 @@ export default class Stream extends EventEmitter {
 
 	@autobind
 	public disconnectToChannel(connection: NonSharedConnection) {
-		this.nonSharedConnections = this.nonSharedConnections.filter(c => c.id !== connection.id);
+		this.nonSharedConnections = this.nonSharedConnections.filter(c => c !== connection);
 	}
 
 	/**
@@ -77,8 +77,8 @@ export default class Stream extends EventEmitter {
 
 		// チャンネル再接続
 		if (isReconnect) {
-			this.sharedConnections.forEach(c => {
+			this.sharedConnectionPools.forEach(p => {
-				c.connect();
+				p.connect();
 			});
 			this.nonSharedConnections.forEach(c => {
 				c.connect();
@@ -104,8 +104,18 @@ export default class Stream extends EventEmitter {
 
 		if (type == 'channel') {
 			const id = body.id;
-			const connection = this.sharedConnections.find(c => c.id === id) || this.nonSharedConnections.find(c => c.id === id);
+
-			connection.emit(body.type, body.body);
+			let connections: Connection[];
+
+			connections = this.sharedConnections.filter(c => c.id === id);
+
+			if (connections.length === 0) {
+				connections = [this.nonSharedConnections.find(c => c.id === id)];
+			}
+
+			connections.filter(c => c != null).forEach(c => {
+				c.emit(body.type, body.body);
+			});
 		} else {
 			this.emit(type, body);
 		}
@@ -140,19 +150,131 @@ export default class Stream extends EventEmitter {
 	}
 }
 
-abstract class Connection extends EventEmitter {
+class Pool {
 	public channel: string;
 	public id: string;
-	protected params: any;
 	protected stream: Stream;
+	private users = 0;
+	private disposeTimerId: any;
+	private isConnected = false;
 
-	constructor(stream: Stream, channel: string, params?: any) {
+	constructor(stream: Stream, channel: string) {
+		this.channel = channel;
+		this.stream = stream;
+
+		this.id = Math.random().toString();
+	}
+
+	@autobind
+	public inc() {
+		if (this.users === 0 && !this.isConnected) {
+			this.connect();
+		}
+
+		this.users++;
+
+		// タイマー解除
+		if (this.disposeTimerId) {
+			clearTimeout(this.disposeTimerId);
+			this.disposeTimerId = null;
+		}
+	}
+
+	@autobind
+	public dec() {
+		this.users--;
+
+		// そのコネクションの利用者が誰もいなくなったら
+		if (this.users === 0) {
+			// また直ぐに再利用される可能性があるので、一定時間待ち、
+			// 新たな利用者が現れなければコネクションを切断する
+			this.disposeTimerId = setTimeout(() => {
+				this.disconnect();
+			}, 3000);
+		}
+	}
+
+	@autobind
+	public connect() {
+		this.isConnected = true;
+		this.stream.send('connect', {
+			channel: this.channel,
+			id: this.id
+		});
+	}
+
+	@autobind
+	private disconnect() {
+		this.isConnected = false;
+		this.disposeTimerId = null;
+		this.stream.send('disconnect', { id: this.id });
+	}
+}
+
+abstract class Connection extends EventEmitter {
+	public channel: string;
+	protected stream: Stream;
+	public abstract id: string;
+
+	constructor(stream: Stream, channel: string) {
 		super();
 
 		this.stream = stream;
 		this.channel = channel;
+	}
+
+	@autobind
+	public send(id: string, typeOrPayload, payload?) {
+		const type = payload === undefined ? typeOrPayload.type : typeOrPayload;
+		const body = payload === undefined ? typeOrPayload.body : payload;
+
+		this.stream.send('ch', {
+			id: id,
+			type: type,
+			body: body
+		});
+	}
+
+	public abstract dispose(): void;
+}
+
+class SharedConnection extends Connection {
+	private pool: Pool;
+
+	public get id(): string {
+		return this.pool.id;
+	}
+
+	constructor(stream: Stream, channel: string, pool: Pool) {
+		super(stream, channel);
+
+		this.pool = pool;
+		this.pool.inc();
+	}
+
+	@autobind
+	public send(typeOrPayload, payload?) {
+		super.send(this.pool.id, typeOrPayload, payload);
+	}
+
+	@autobind
+	public dispose() {
+		this.pool.dec();
+		this.removeAllListeners();
+		this.stream.removeSharedConnection(this);
+	}
+}
+
+class NonSharedConnection extends Connection {
+	public id: string;
+	protected params: any;
+
+	constructor(stream: Stream, channel: string, params?: any) {
+		super(stream, channel);
+
 		this.params = params;
 		this.id = Math.random().toString();
+
 		this.connect();
 	}
 
@@ -167,59 +289,7 @@ abstract class Connection extends EventEmitter {
 
 	@autobind
 	public send(typeOrPayload, payload?) {
-		const type = payload === undefined ? typeOrPayload.type : typeOrPayload;
+		super.send(this.id, typeOrPayload, payload);
-		const body = payload === undefined ? typeOrPayload.body : payload;
-
-		this.stream.send('ch', {
-			id: this.id,
-			type: type,
-			body: body
-		});
-	}
-
-	public abstract dispose(): void;
-}
-
-class SharedConnection extends Connection {
-	private users = 0;
-	private disposeTimerId: any;
-
-	constructor(stream: Stream, channel: string) {
-		super(stream, channel);
-	}
-
-	@autobind
-	public use() {
-		this.users++;
-
-		// タイマー解除
-		if (this.disposeTimerId) {
-			clearTimeout(this.disposeTimerId);
-			this.disposeTimerId = null;
-		}
-	}
-
-	@autobind
-	public dispose() {
-		this.users--;
-
-		// そのコネクションの利用者が誰もいなくなったら
-		if (this.users === 0) {
-			// また直ぐに再利用される可能性があるので、一定時間待ち、
-			// 新たな利用者が現れなければコネクションを切断する
-			this.disposeTimerId = setTimeout(() => {
-				this.disposeTimerId = null;
-				this.removeAllListeners();
-				this.stream.send('disconnect', { id: this.id });
-				this.stream.removeSharedConnection(this);
-			}, 3000);
-		}
-	}
-}
-
-class NonSharedConnection extends Connection {
-	constructor(stream: Stream, channel: string, params?: any) {
-		super(stream, channel, params);
 	}
 
 	@autobind