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/*---------------------------------------------------------------------------------------------
agentHostChangesetSubscriptionService.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import type { URI as ProtocolURI } from './state/sessionState.js';
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import { createDecorator } from '../../instantiation/common/instantiation.js';
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export const IAgentHostChangesetSubscriptionService = createDecorator<IAgentHostChangesetSubscriptionService>('agentHostChangesetSubscriptionService');
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/**
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* Shared changeset subscription registry. The coordinator records subscription
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* lifecycle changes here; compute services read the current per-session set.
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*/
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export interface IAgentHostChangesetSubscriptionService {
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readonly _serviceBrand: undefined;
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/**
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* Returns the set of changeset URIs currently subscribed for `session`.
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* Empty when the session has no active changeset subscribers.
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*/
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getSessionSubscriptions(session: ProtocolURI): ReadonlySet<ProtocolURI>;
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/**
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* Adds `changeset` to the active subscription set for `session`.
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*/
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addSubscription(session: ProtocolURI, changeset: ProtocolURI): void;
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/**
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* Removes `changeset` from the active subscription set for `session`.
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*/
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removeSubscription(session: ProtocolURI, changeset: ProtocolURI): void;
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/**
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* Drops every active subscription for `session`.
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*/
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clearSessionSubscriptions(session: ProtocolURI): void;
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}