import type { ServeOptions } from '../index.ts';
import { type Principal } from '../principal.ts';
import type { PendingTask } from '../task-queue-types.ts';
import type { ServerContext } from './context.ts';
/** The worker-facing identity of a long-poll claim: the synthetic worker id and its per-claim token. */
export interface LongPollClaim {
    workerId: string;
    attemptToken: string;
}
/**
 * Conditionally claim the durable `queued` ledger record for a task the
 * in-memory `TaskQueue` matched to a long-poll waiter. Returns `null` when
 * the claim loses — the ledger disagrees with the in-memory match hint,
 * meaning another actor already claimed or cancelled this operationId — in
 * which case the caller treats the poll as if nothing matched, per "index
 * disagreement never authorizes a state transition".
 *
 * Long-poll workers never call `WorkerRegistry.register()`, so there is no
 * manifest to build a `WorkerExecutionIdentity` from; the claim always omits
 * `executionIdentity` (see `RemoteTaskLeased.executionIdentity`'s doc
 * comment) rather than fabricate one.
 */
export declare function markTaskClaimedByLongPollWorker(context: ServerContext, options: ServeOptions, task: PendingTask): Promise<LongPollClaim | null>;
export declare function handleTaskPollRequest(context: ServerContext, options: ServeOptions, request: Request, url: URL, principal?: Principal): Promise<Response | null>;
export declare function handleTaskResultRequest(context: ServerContext, options: ServeOptions, request: Request, url: URL, principal?: Principal): Promise<Response | null>;