-
Notifications
You must be signed in to change notification settings - Fork 2.5k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Introduce timeout for keeping connection contexts alive
Fixes #12823 - refactor front end to allow for multiple reconnections - remove IWebsockt abstractions - separate front end connections from service channel management - introduce mechanism to reconnect front end to existing connection context based on timeouts Contributed on behalf of STMicroelectronics Signed-off-by: Thomas Mäder <[email protected]>
- Loading branch information
Showing
53 changed files
with
1,296 additions
and
702 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| // ***************************************************************************** | ||
| // Copyright (C) 2023 STMicroelectronics and others. | ||
| // | ||
| // This program and the accompanying materials are made available under the | ||
| // terms of the Eclipse Public License v. 2.0 which is available at | ||
| // http://www.eclipse.org/legal/epl-2.0. | ||
| // | ||
| // This Source Code may also be made available under the following Secondary | ||
| // Licenses when the conditions for such availability set forth in the Eclipse | ||
| // Public License v. 2.0 are satisfied: GNU General Public License, version 2 | ||
| // with the GNU Classpath Exception which is available at | ||
| // https://www.gnu.org/software/classpath/license.html. | ||
| // | ||
| // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 | ||
| // ***************************************************************************** | ||
|
|
||
| import { Channel, Event } from "../../common"; | ||
|
|
||
| export const ConnectionSource = Symbol('ConnectionSource'); | ||
|
|
||
| /** | ||
| * A ConnectionSource creates a Channel. The channel is valid until it sends a close event. | ||
| */ | ||
| export interface ConnectionSource { | ||
| onConnectionDidOpen: Event<Channel>; | ||
| } |
38 changes: 38 additions & 0 deletions
38
packages/core/src/browser/messaging/frontend-id-provider.ts
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // ***************************************************************************** | ||
| // Copyright (C) 2023 STMicroelectronics and others. | ||
| // | ||
| // This program and the accompanying materials are made available under the | ||
| // terms of the Eclipse Public License v. 2.0 which is available at | ||
| // http://www.eclipse.org/legal/epl-2.0. | ||
| // | ||
| // This Source Code may also be made available under the following Secondary | ||
| // Licenses when the conditions for such availability set forth in the Eclipse | ||
| // Public License v. 2.0 are satisfied: GNU General Public License, version 2 | ||
| // with the GNU Classpath Exception which is available at | ||
| // https://www.gnu.org/software/classpath/license.html. | ||
| // | ||
| // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 | ||
| // ***************************************************************************** | ||
|
|
||
| import { injectable } from "inversify"; | ||
| import { generateUuid } from "../../common/uuid"; | ||
|
|
||
| export const FrontendIdProvider = Symbol('FrontendIdProvider'); | ||
|
|
||
| /** | ||
| * A FronendIdProvider computes an id for an instance of the front end that may be reconnected to a back end | ||
| * connection context. | ||
| */ | ||
| export interface FrontendIdProvider { | ||
| getId(): string; | ||
| } | ||
|
|
||
| @injectable() | ||
| export class BrowserFrontendIdProvider implements FrontendIdProvider { | ||
| protected readonly id = generateUuid(); // generate a new id each time we load the application | ||
|
|
||
| getId(): string { | ||
| return this.id; | ||
| } | ||
|
|
||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
127 changes: 127 additions & 0 deletions
127
packages/core/src/browser/messaging/service-connection-provider.ts
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| // ***************************************************************************** | ||
| // Copyright (C) 2020 Ericsson and others. | ||
| // | ||
| // This program and the accompanying materials are made available under the | ||
| // terms of the Eclipse Public License v. 2.0 which is available at | ||
| // http://www.eclipse.org/legal/epl-2.0. | ||
| // | ||
| // This Source Code may also be made available under the following Secondary | ||
| // Licenses when the conditions for such availability set forth in the Eclipse | ||
| // Public License v. 2.0 are satisfied: GNU General Public License, version 2 | ||
| // with the GNU Classpath Exception which is available at | ||
| // https://www.gnu.org/software/classpath/license.html. | ||
| // | ||
| // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 | ||
| // ***************************************************************************** | ||
|
|
||
| import { inject, injectable, interfaces, postConstruct } from 'inversify'; | ||
| import { Channel, RpcProxy, RpcProxyFactory } from '../../common'; | ||
| import { ChannelMultiplexer } from '../../common/message-rpc/channel'; | ||
| import { Deferred } from '../../common/promise-util'; | ||
| import { ConnectionSource } from './connection-source'; | ||
|
|
||
|
|
||
| export const LocalConnectionProvider = Symbol('LocalConnectionProvider'); | ||
| export const RemoteConnectionProvider = Symbol('RemoteConnectionProvider'); | ||
|
|
||
| export namespace ServiceConnectionProvider { | ||
| export type ConnectionHandler = (path: String, channel: Channel) => void; | ||
| } | ||
|
|
||
| /** | ||
| * This class manages the channels for remote services in the back end | ||
| */ | ||
| @injectable() | ||
| export class ServiceConnectionProvider { | ||
|
|
||
| static createProxy<T extends object>(container: interfaces.Container, path: string, arg?: object): RpcProxy<T> { | ||
| return container.get<ServiceConnectionProvider>(RemoteConnectionProvider).createProxy(path, arg); | ||
| } | ||
|
|
||
| static createLocalProxy<T extends object>(container: interfaces.Container, path: string, arg?: object): RpcProxy<T> { | ||
| return container.get<ServiceConnectionProvider>(LocalConnectionProvider).createProxy(path, arg); | ||
| } | ||
|
|
||
| static createHandler(container: interfaces.Container, path: string, arg?: object): void { | ||
| const remote = container.get<ServiceConnectionProvider>(RemoteConnectionProvider); | ||
| const local = container.get<ServiceConnectionProvider>(LocalConnectionProvider); | ||
| remote.createProxy(path, arg); | ||
| if (remote !== local) { | ||
| local.createProxy(path, arg); | ||
| } | ||
| } | ||
|
|
||
| protected readonly channelHandlers = new Map<string, ServiceConnectionProvider.ConnectionHandler>(); | ||
|
|
||
| /** | ||
| * Create a proxy object to remote interface of T type | ||
| * over a web socket connection for the given path and proxy factory. | ||
| */ | ||
| createProxy<T extends object>(path: string, factory: RpcProxyFactory<T>): RpcProxy<T>; | ||
| /** | ||
| * Create a proxy object to remote interface of T type | ||
| * over a web socket connection for the given path. | ||
| * | ||
| * An optional target can be provided to handle | ||
| * notifications and requests from a remote side. | ||
| */ | ||
| createProxy<T extends object>(path: string, target?: object): RpcProxy<T>; | ||
| createProxy<T extends object>(path: string, arg?: object): RpcProxy<T> { | ||
| const factory = arg instanceof RpcProxyFactory ? arg : new RpcProxyFactory<T>(arg); | ||
| this.listen(path, (_, c) => factory.listen(c), true); | ||
| return factory.createProxy(); | ||
| } | ||
|
|
||
| protected channelMultiplexer: ChannelMultiplexer; | ||
|
|
||
| private channelReadyDeferred = new Deferred<void>(); | ||
| protected get channelReady(): Promise<void> { | ||
| return this.channelReadyDeferred.promise; | ||
| } | ||
|
|
||
| @postConstruct() | ||
| init(): void { | ||
| this.connectionSource.onConnectionDidOpen(channel => this.handleChannelCreated(channel)); | ||
| } | ||
|
|
||
| @inject(ConnectionSource) | ||
| protected connectionSource: ConnectionSource; | ||
|
|
||
| /** | ||
| * This method must be invoked by subclasses when they have created the main channel. | ||
| * @param mainChannel | ||
| */ | ||
| protected handleChannelCreated(channel: Channel): void { | ||
| channel.onClose(() => { | ||
| this.handleChannelClosed(channel); | ||
| }); | ||
|
|
||
| this.channelMultiplexer = new ChannelMultiplexer(channel); | ||
| this.channelReadyDeferred.resolve(); | ||
| for (const entry of this.channelHandlers.entries()) { | ||
| this.openChannel(entry[0], entry[1]); | ||
| } | ||
| } | ||
|
|
||
| handleChannelClosed(channel: Channel): void { | ||
| this.channelReadyDeferred = new Deferred(); | ||
| } | ||
|
|
||
| /** | ||
| * Install a connection handler for the given path. | ||
| */ | ||
| listen(path: string, handler: ServiceConnectionProvider.ConnectionHandler, reconnect: boolean): void { | ||
| this.openChannel(path, handler).then(() => { | ||
| if (reconnect) { | ||
| this.channelHandlers.set(path, handler); | ||
| } | ||
| }); | ||
|
|
||
| } | ||
|
|
||
| private async openChannel(path: string, handler: ServiceConnectionProvider.ConnectionHandler): Promise<void> { | ||
| await this.channelReady; | ||
| const newChannel = await this.channelMultiplexer.open(path); | ||
| handler(path, newChannel); | ||
| } | ||
| } |
Oops, something went wrong.