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|
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as errors from 'vs/base/common/errors';
import { Emitter, Event } from 'vs/base/common/event';
import { Disposable, IDisposable } from 'vs/base/common/lifecycle';
import { IMessagePassingProtocol } from 'vs/base/parts/ipc/common/ipc';
import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/common/environmentService';
import { IInstantiationService, ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
import { ExtHostCustomersRegistry, IInternalExtHostContext } from 'vs/workbench/services/extensions/common/extHostCustomers';
import { Proxied, ProxyIdentifier } from 'vs/workbench/services/extensions/common/proxyIdentifier';
import { IRPCProtocolLogger, RPCProtocol, RequestInitiator, ResponsiveState } from 'vs/workbench/services/extensions/common/rpcProtocol';
import { RemoteAuthorityResolverErrorCode } from 'vs/platform/remote/common/remoteAuthorityResolver';
import { ExtensionIdentifier, IExtensionDescription } from 'vs/platform/extensions/common/extensions';
import * as nls from 'vs/nls';
import { registerAction2, Action2 } from 'vs/platform/actions/common/actions';
import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
import { StopWatch } from 'vs/base/common/stopwatch';
import { VSBuffer } from 'vs/base/common/buffer';
import { IExtensionHost, ExtensionHostKind, ActivationKind, extensionHostKindToString, ExtensionActivationReason, IInternalExtensionService, ExtensionRunningLocation, ExtensionHostExtensions } from 'vs/workbench/services/extensions/common/extensions';
import { CATEGORIES } from 'vs/workbench/common/actions';
import { Barrier } from 'vs/base/common/async';
import { URI } from 'vs/base/common/uri';
import { ILogService } from 'vs/platform/log/common/log';
import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
import { IExtensionHostProxy, IResolveAuthorityResult } from 'vs/workbench/services/extensions/common/extensionHostProxy';
import { IExtensionDescriptionDelta } from 'vs/workbench/services/extensions/common/extensionHostProtocol';
// Enable to see detailed message communication between window and extension host
const LOG_EXTENSION_HOST_COMMUNICATION = false;
const LOG_USE_COLORS = true;
export interface IExtensionHostManager {
readonly extensionHostId: string;
readonly kind: ExtensionHostKind;
readonly onDidExit: Event<[number, string | null]>;
readonly onDidChangeResponsiveState: Event<ResponsiveState>;
dispose(): void;
ready(): Promise<void>;
representsRunningLocation(runningLocation: ExtensionRunningLocation): boolean;
deltaExtensions(extensionsDelta: IExtensionDescriptionDelta): Promise<void>;
containsExtension(extensionId: ExtensionIdentifier): boolean;
activate(extension: ExtensionIdentifier, reason: ExtensionActivationReason): Promise<boolean>;
activateByEvent(activationEvent: string, activationKind: ActivationKind): Promise<void>;
activationEventIsDone(activationEvent: string): boolean;
getInspectPort(tryEnableInspector: boolean): Promise<number>;
resolveAuthority(remoteAuthority: string, resolveAttempt: number): Promise<IResolveAuthorityResult>;
/**
* Returns `null` if no resolver for `remoteAuthority` is found.
*/
getCanonicalURI(remoteAuthority: string, uri: URI): Promise<URI | null>;
start(allExtensions: IExtensionDescription[], myExtensions: ExtensionIdentifier[]): Promise<void>;
extensionTestsExecute(): Promise<number>;
setRemoteEnvironment(env: { [key: string]: string | null }): Promise<void>;
}
export function createExtensionHostManager(instantiationService: IInstantiationService, extensionHostId: string, extensionHost: IExtensionHost, isInitialStart: boolean, initialActivationEvents: string[], internalExtensionService: IInternalExtensionService): IExtensionHostManager {
if (extensionHost.lazyStart && isInitialStart && initialActivationEvents.length === 0) {
return instantiationService.createInstance(LazyStartExtensionHostManager, extensionHostId, extensionHost, internalExtensionService);
}
return instantiationService.createInstance(ExtensionHostManager, extensionHostId, extensionHost, initialActivationEvents, internalExtensionService);
}
export type ExtensionHostStartupClassification = {
owner: 'alexdima';
comment: 'The startup state of the extension host';
time: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
action: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
kind: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
errorName?: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
errorMessage?: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
errorStack?: { classification: 'SystemMetaData'; purpose: 'PerformanceAndHealth' };
};
export type ExtensionHostStartupEvent = {
time: number;
action: 'starting' | 'success' | 'error';
kind: string;
errorName?: string;
errorMessage?: string;
errorStack?: string;
};
class ExtensionHostManager extends Disposable implements IExtensionHostManager {
public readonly onDidExit: Event<[number, string | null]>;
private readonly _onDidChangeResponsiveState: Emitter<ResponsiveState> = this._register(new Emitter<ResponsiveState>());
public readonly onDidChangeResponsiveState: Event<ResponsiveState> = this._onDidChangeResponsiveState.event;
/**
* A map of already requested activation events to speed things up if the same activation event is triggered multiple times.
*/
private readonly _cachedActivationEvents: Map<string, Promise<void>>;
private readonly _resolvedActivationEvents: Set<string>;
private _rpcProtocol: RPCProtocol | null;
private readonly _customers: IDisposable[];
private readonly _extensionHost: IExtensionHost;
private _proxy: Promise<IExtensionHostProxy | null> | null;
private _hasStarted = false;
public get kind(): ExtensionHostKind {
return this._extensionHost.runningLocation.kind;
}
constructor(
public readonly extensionHostId: string,
extensionHost: IExtensionHost,
initialActivationEvents: string[],
private readonly _internalExtensionService: IInternalExtensionService,
@IInstantiationService private readonly _instantiationService: IInstantiationService,
@IWorkbenchEnvironmentService private readonly _environmentService: IWorkbenchEnvironmentService,
@ITelemetryService private readonly _telemetryService: ITelemetryService,
@ILogService private readonly _logService: ILogService,
) {
super();
this._cachedActivationEvents = new Map<string, Promise<void>>();
this._resolvedActivationEvents = new Set<string>();
this._rpcProtocol = null;
this._customers = [];
this._extensionHost = extensionHost;
this.onDidExit = this._extensionHost.onExit;
const startingTelemetryEvent: ExtensionHostStartupEvent = {
time: Date.now(),
action: 'starting',
kind: extensionHostKindToString(this.kind)
};
this._telemetryService.publicLog2<ExtensionHostStartupEvent, ExtensionHostStartupClassification>('extensionHostStartup', startingTelemetryEvent);
this._proxy = this._extensionHost.start().then(
(protocol) => {
this._hasStarted = true;
// Track healthy extension host startup
const successTelemetryEvent: ExtensionHostStartupEvent = {
time: Date.now(),
action: 'success',
kind: extensionHostKindToString(this.kind)
};
this._telemetryService.publicLog2<ExtensionHostStartupEvent, ExtensionHostStartupClassification>('extensionHostStartup', successTelemetryEvent);
return this._createExtensionHostCustomers(protocol);
},
(err) => {
this._logService.error(`Error received from starting extension host (kind: ${extensionHostKindToString(this.kind)})`);
this._logService.error(err);
// Track errors during extension host startup
const failureTelemetryEvent: ExtensionHostStartupEvent = {
time: Date.now(),
action: 'error',
kind: extensionHostKindToString(this.kind)
};
if (err && err.name) {
failureTelemetryEvent.errorName = err.name;
}
if (err && err.message) {
failureTelemetryEvent.errorMessage = err.message;
}
if (err && err.stack) {
failureTelemetryEvent.errorStack = err.stack;
}
this._telemetryService.publicLog2<ExtensionHostStartupEvent, ExtensionHostStartupClassification>('extensionHostStartup', failureTelemetryEvent, true);
return null;
}
);
this._proxy.then(() => {
initialActivationEvents.forEach((activationEvent) => this.activateByEvent(activationEvent, ActivationKind.Normal));
this._register(registerLatencyTestProvider({
measure: () => this.measure()
}));
});
}
public override dispose(): void {
if (this._extensionHost) {
this._extensionHost.dispose();
}
if (this._rpcProtocol) {
this._rpcProtocol.dispose();
}
for (let i = 0, len = this._customers.length; i < len; i++) {
const customer = this._customers[i];
try {
customer.dispose();
} catch (err) {
errors.onUnexpectedError(err);
}
}
this._proxy = null;
super.dispose();
}
private async measure(): Promise<ExtHostLatencyResult | null> {
const proxy = await this._proxy;
if (!proxy) {
return null;
}
const latency = await this._measureLatency(proxy);
const down = await this._measureDown(proxy);
const up = await this._measureUp(proxy);
return {
remoteAuthority: this._extensionHost.remoteAuthority,
latency,
down,
up
};
}
public async ready(): Promise<void> {
await this._proxy;
}
private async _measureLatency(proxy: IExtensionHostProxy): Promise<number> {
const COUNT = 10;
let sum = 0;
for (let i = 0; i < COUNT; i++) {
const sw = StopWatch.create(true);
await proxy.test_latency(i);
sw.stop();
sum += sw.elapsed();
}
return (sum / COUNT);
}
private static _convert(byteCount: number, elapsedMillis: number): number {
return (byteCount * 1000 * 8) / elapsedMillis;
}
private async _measureUp(proxy: IExtensionHostProxy): Promise<number> {
const SIZE = 10 * 1024 * 1024; // 10MB
const buff = VSBuffer.alloc(SIZE);
const value = Math.ceil(Math.random() * 256);
for (let i = 0; i < buff.byteLength; i++) {
buff.writeUInt8(i, value);
}
const sw = StopWatch.create(true);
await proxy.test_up(buff);
sw.stop();
return ExtensionHostManager._convert(SIZE, sw.elapsed());
}
private async _measureDown(proxy: IExtensionHostProxy): Promise<number> {
const SIZE = 10 * 1024 * 1024; // 10MB
const sw = StopWatch.create(true);
await proxy.test_down(SIZE);
sw.stop();
return ExtensionHostManager._convert(SIZE, sw.elapsed());
}
private _createExtensionHostCustomers(protocol: IMessagePassingProtocol): IExtensionHostProxy {
let logger: IRPCProtocolLogger | null = null;
if (LOG_EXTENSION_HOST_COMMUNICATION || this._environmentService.logExtensionHostCommunication) {
logger = new RPCLogger();
}
this._rpcProtocol = new RPCProtocol(protocol, logger);
this._register(this._rpcProtocol.onDidChangeResponsiveState((responsiveState: ResponsiveState) => this._onDidChangeResponsiveState.fire(responsiveState)));
let extensionHostProxy: IExtensionHostProxy | null = null as IExtensionHostProxy | null;
let mainProxyIdentifiers: ProxyIdentifier<any>[] = [];
const extHostContext: IInternalExtHostContext = {
remoteAuthority: this._extensionHost.remoteAuthority,
extensionHostKind: this.kind,
getProxy: <T>(identifier: ProxyIdentifier<T>): Proxied<T> => this._rpcProtocol!.getProxy(identifier),
set: <T, R extends T>(identifier: ProxyIdentifier<T>, instance: R): R => this._rpcProtocol!.set(identifier, instance),
dispose: (): void => this._rpcProtocol!.dispose(),
assertRegistered: (identifiers: ProxyIdentifier<any>[]): void => this._rpcProtocol!.assertRegistered(identifiers),
drain: (): Promise<void> => this._rpcProtocol!.drain(),
//#region internal
internalExtensionService: this._internalExtensionService,
_setExtensionHostProxy: (value: IExtensionHostProxy): void => {
extensionHostProxy = value;
},
_setAllMainProxyIdentifiers: (value: ProxyIdentifier<any>[]): void => {
mainProxyIdentifiers = value;
},
//#endregion
};
// Named customers
const namedCustomers = ExtHostCustomersRegistry.getNamedCustomers();
for (let i = 0, len = namedCustomers.length; i < len; i++) {
const [id, ctor] = namedCustomers[i];
try {
const instance = this._instantiationService.createInstance(ctor, extHostContext);
this._customers.push(instance);
this._rpcProtocol.set(id, instance);
} catch (err) {
this._logService.critical(`Cannot instantiate named customer: '${id.sid}'`);
this._logService.critical(err);
errors.onUnexpectedError(err);
}
}
// Customers
const customers = ExtHostCustomersRegistry.getCustomers();
for (const ctor of customers) {
try {
const instance = this._instantiationService.createInstance(ctor, extHostContext);
this._customers.push(instance);
} catch (err) {
this._logService.critical(err);
errors.onUnexpectedError(err);
}
}
if (!extensionHostProxy) {
throw new Error(`Missing IExtensionHostProxy!`);
}
// Check that no named customers are missing
this._rpcProtocol.assertRegistered(mainProxyIdentifiers);
return extensionHostProxy;
}
public async activate(extension: ExtensionIdentifier, reason: ExtensionActivationReason): Promise<boolean> {
const proxy = await this._proxy;
if (!proxy) {
return false;
}
return proxy.activate(extension, reason);
}
public activateByEvent(activationEvent: string, activationKind: ActivationKind): Promise<void> {
if (activationKind === ActivationKind.Immediate && !this._hasStarted) {
return Promise.resolve();
}
if (!this._cachedActivationEvents.has(activationEvent)) {
this._cachedActivationEvents.set(activationEvent, this._activateByEvent(activationEvent, activationKind));
}
return this._cachedActivationEvents.get(activationEvent)!;
}
public activationEventIsDone(activationEvent: string): boolean {
return this._resolvedActivationEvents.has(activationEvent);
}
private async _activateByEvent(activationEvent: string, activationKind: ActivationKind): Promise<void> {
if (!this._proxy) {
return;
}
const proxy = await this._proxy;
if (!proxy) {
// this case is already covered above and logged.
// i.e. the extension host could not be started
return;
}
await proxy.activateByEvent(activationEvent, activationKind);
this._resolvedActivationEvents.add(activationEvent);
}
public async getInspectPort(tryEnableInspector: boolean): Promise<number> {
if (this._extensionHost) {
if (tryEnableInspector) {
await this._extensionHost.enableInspectPort();
}
const port = this._extensionHost.getInspectPort();
if (port) {
return port;
}
}
return 0;
}
public async resolveAuthority(remoteAuthority: string, resolveAttempt: number): Promise<IResolveAuthorityResult> {
const proxy = await this._proxy;
if (!proxy) {
return {
type: 'error',
error: {
message: `Cannot resolve authority`,
code: RemoteAuthorityResolverErrorCode.Unknown,
detail: undefined
}
};
}
try {
return proxy.resolveAuthority(remoteAuthority, resolveAttempt);
} catch (err) {
return {
type: 'error',
error: {
message: err.message,
code: RemoteAuthorityResolverErrorCode.Unknown,
detail: err
}
};
}
}
public async getCanonicalURI(remoteAuthority: string, uri: URI): Promise<URI | null> {
const proxy = await this._proxy;
if (!proxy) {
throw new Error(`Cannot resolve canonical URI`);
}
return proxy.getCanonicalURI(remoteAuthority, uri);
}
public async start(allExtensions: IExtensionDescription[], myExtensions: ExtensionIdentifier[]): Promise<void> {
const proxy = await this._proxy;
if (!proxy) {
return;
}
const deltaExtensions = this._extensionHost.extensions.set(allExtensions, myExtensions);
return proxy.startExtensionHost(deltaExtensions);
}
public async extensionTestsExecute(): Promise<number> {
const proxy = await this._proxy;
if (!proxy) {
throw new Error('Could not obtain Extension Host Proxy');
}
return proxy.extensionTestsExecute();
}
public representsRunningLocation(runningLocation: ExtensionRunningLocation): boolean {
return this._extensionHost.runningLocation.equals(runningLocation);
}
public async deltaExtensions(extensionsDelta: IExtensionDescriptionDelta): Promise<void> {
const proxy = await this._proxy;
if (!proxy) {
return;
}
this._extensionHost.extensions.delta(extensionsDelta);
return proxy.deltaExtensions(extensionsDelta);
}
public containsExtension(extensionId: ExtensionIdentifier): boolean {
return this._extensionHost.extensions.containsExtension(extensionId);
}
public async setRemoteEnvironment(env: { [key: string]: string | null }): Promise<void> {
const proxy = await this._proxy;
if (!proxy) {
return;
}
return proxy.setRemoteEnvironment(env);
}
}
/**
* Waits until `start()` and only if it has extensions proceeds to really start.
*/
class LazyStartExtensionHostManager extends Disposable implements IExtensionHostManager {
public readonly onDidExit: Event<[number, string | null]>;
private readonly _onDidChangeResponsiveState: Emitter<ResponsiveState> = this._register(new Emitter<ResponsiveState>());
public readonly onDidChangeResponsiveState: Event<ResponsiveState> = this._onDidChangeResponsiveState.event;
private readonly _extensionHost: IExtensionHost;
private _startCalled: Barrier;
private _actual: ExtensionHostManager | null;
private _lazyStartExtensions: ExtensionHostExtensions | null;
public get kind(): ExtensionHostKind {
return this._extensionHost.runningLocation.kind;
}
constructor(
public readonly extensionHostId: string,
extensionHost: IExtensionHost,
private readonly _internalExtensionService: IInternalExtensionService,
@IInstantiationService private readonly _instantiationService: IInstantiationService,
@ILogService private readonly _logService: ILogService,
) {
super();
this._extensionHost = extensionHost;
this.onDidExit = extensionHost.onExit;
this._startCalled = new Barrier();
this._actual = null;
this._lazyStartExtensions = null;
}
private _createActual(reason: string): ExtensionHostManager {
this._logService.info(`Creating lazy extension host: ${reason}`);
this._actual = this._register(this._instantiationService.createInstance(ExtensionHostManager, this.extensionHostId, this._extensionHost, [], this._internalExtensionService));
this._register(this._actual.onDidChangeResponsiveState((e) => this._onDidChangeResponsiveState.fire(e)));
return this._actual;
}
private async _getOrCreateActualAndStart(reason: string): Promise<ExtensionHostManager> {
if (this._actual) {
// already created/started
return this._actual;
}
const actual = this._createActual(reason);
await actual.start([], []);
return actual;
}
public async ready(): Promise<void> {
await this._startCalled.wait();
if (this._actual) {
await this._actual.ready();
}
}
public representsRunningLocation(runningLocation: ExtensionRunningLocation): boolean {
return this._extensionHost.runningLocation.equals(runningLocation);
}
public async deltaExtensions(extensionsDelta: IExtensionDescriptionDelta): Promise<void> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.deltaExtensions(extensionsDelta);
}
this._lazyStartExtensions!.delta(extensionsDelta);
if (extensionsDelta.myToAdd.length > 0) {
const actual = this._createActual(`contains ${extensionsDelta.myToAdd.length} new extension(s) (installed or enabled): ${extensionsDelta.myToAdd.map(extId => extId.value)}`);
const { toAdd, myToAdd } = this._lazyStartExtensions!.toDelta();
actual.start(toAdd, myToAdd);
return;
}
}
public containsExtension(extensionId: ExtensionIdentifier): boolean {
return this._extensionHost.extensions.containsExtension(extensionId);
}
public async activate(extension: ExtensionIdentifier, reason: ExtensionActivationReason): Promise<boolean> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.activate(extension, reason);
}
return false;
}
public async activateByEvent(activationEvent: string, activationKind: ActivationKind): Promise<void> {
if (activationKind === ActivationKind.Immediate) {
// this is an immediate request, so we cannot wait for start to be called
if (this._actual) {
return this._actual.activateByEvent(activationEvent, activationKind);
}
return;
}
await this._startCalled.wait();
if (this._actual) {
return this._actual.activateByEvent(activationEvent, activationKind);
}
}
public activationEventIsDone(activationEvent: string): boolean {
if (!this._startCalled.isOpen()) {
return false;
}
if (this._actual) {
return this._actual.activationEventIsDone(activationEvent);
}
return true;
}
public async getInspectPort(tryEnableInspector: boolean): Promise<number> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.getInspectPort(tryEnableInspector);
}
return 0;
}
public async resolveAuthority(remoteAuthority: string, resolveAttempt: number): Promise<IResolveAuthorityResult> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.resolveAuthority(remoteAuthority, resolveAttempt);
}
return {
type: 'error',
error: {
message: `Cannot resolve authority`,
code: RemoteAuthorityResolverErrorCode.Unknown,
detail: undefined
}
};
}
public async getCanonicalURI(remoteAuthority: string, uri: URI): Promise<URI | null> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.getCanonicalURI(remoteAuthority, uri);
}
throw new Error(`Cannot resolve canonical URI`);
}
public async start(allExtensions: IExtensionDescription[], myExtensions: ExtensionIdentifier[]): Promise<void> {
if (myExtensions.length > 0) {
// there are actual extensions, so let's launch the extension host
const actual = this._createActual(`contains ${myExtensions.length} extension(s): ${myExtensions.map(extId => extId.value)}.`);
const result = actual.start(allExtensions, myExtensions);
this._startCalled.open();
return result;
}
// there are no actual extensions running, store extensions in `this._lazyStartExtensions`
this._lazyStartExtensions = new ExtensionHostExtensions();
this._lazyStartExtensions.set(allExtensions, myExtensions);
this._startCalled.open();
}
public async extensionTestsExecute(): Promise<number> {
await this._startCalled.wait();
const actual = await this._getOrCreateActualAndStart(`execute tests.`);
return actual.extensionTestsExecute();
}
public async setRemoteEnvironment(env: { [key: string]: string | null }): Promise<void> {
await this._startCalled.wait();
if (this._actual) {
return this._actual.setRemoteEnvironment(env);
}
}
}
const colorTables = [
['#2977B1', '#FC802D', '#34A13A', '#D3282F', '#9366BA'],
['#8B564C', '#E177C0', '#7F7F7F', '#BBBE3D', '#2EBECD']
];
function prettyWithoutArrays(data: any): any {
if (Array.isArray(data)) {
return data;
}
if (data && typeof data === 'object' && typeof data.toString === 'function') {
const result = data.toString();
if (result !== '[object Object]') {
return result;
}
}
return data;
}
function pretty(data: any): any {
if (Array.isArray(data)) {
return data.map(prettyWithoutArrays);
}
return prettyWithoutArrays(data);
}
class RPCLogger implements IRPCProtocolLogger {
private _totalIncoming = 0;
private _totalOutgoing = 0;
private _log(direction: string, totalLength: number, msgLength: number, req: number, initiator: RequestInitiator, str: string, data: any): void {
data = pretty(data);
const colorTable = colorTables[initiator];
const color = LOG_USE_COLORS ? colorTable[req % colorTable.length] : '#000000';
let args = [`%c[${direction}]%c[${String(totalLength).padStart(7)}]%c[len: ${String(msgLength).padStart(5)}]%c${String(req).padStart(5)} - ${str}`, 'color: darkgreen', 'color: grey', 'color: grey', `color: ${color}`];
if (/\($/.test(str)) {
args = args.concat(data);
args.push(')');
} else {
args.push(data);
}
console.log.apply(console, args as [string, ...string[]]);
}
logIncoming(msgLength: number, req: number, initiator: RequestInitiator, str: string, data?: any): void {
this._totalIncoming += msgLength;
this._log('Ext \u2192 Win', this._totalIncoming, msgLength, req, initiator, str, data);
}
logOutgoing(msgLength: number, req: number, initiator: RequestInitiator, str: string, data?: any): void {
this._totalOutgoing += msgLength;
this._log('Win \u2192 Ext', this._totalOutgoing, msgLength, req, initiator, str, data);
}
}
interface ExtHostLatencyResult {
remoteAuthority: string | null;
up: number;
down: number;
latency: number;
}
interface ExtHostLatencyProvider {
measure(): Promise<ExtHostLatencyResult | null>;
}
const providers: ExtHostLatencyProvider[] = [];
function registerLatencyTestProvider(provider: ExtHostLatencyProvider): IDisposable {
providers.push(provider);
return {
dispose: () => {
for (let i = 0; i < providers.length; i++) {
if (providers[i] === provider) {
providers.splice(i, 1);
return;
}
}
}
};
}
function getLatencyTestProviders(): ExtHostLatencyProvider[] {
return providers.slice(0);
}
registerAction2(class MeasureExtHostLatencyAction extends Action2 {
constructor() {
super({
id: 'editor.action.measureExtHostLatency',
title: {
value: nls.localize('measureExtHostLatency', "Measure Extension Host Latency"),
original: 'Measure Extension Host Latency'
},
category: CATEGORIES.Developer,
f1: true
});
}
async run(accessor: ServicesAccessor) {
const editorService = accessor.get(IEditorService);
const measurements = await Promise.all(getLatencyTestProviders().map(provider => provider.measure()));
editorService.openEditor({ resource: undefined, contents: measurements.map(MeasureExtHostLatencyAction._print).join('\n\n'), options: { pinned: true } });
}
private static _print(m: ExtHostLatencyResult | null): string {
if (!m) {
return '';
}
return `${m.remoteAuthority ? `Authority: ${m.remoteAuthority}\n` : ``}Roundtrip latency: ${m.latency.toFixed(3)}ms\nUp: ${MeasureExtHostLatencyAction._printSpeed(m.up)}\nDown: ${MeasureExtHostLatencyAction._printSpeed(m.down)}\n`;
}
private static _printSpeed(n: number): string {
if (n <= 1024) {
return `${n} bps`;
}
if (n < 1024 * 1024) {
return `${(n / 1024).toFixed(1)} kbps`;
}
return `${(n / 1024 / 1024).toFixed(1)} Mbps`;
}
});
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