import type { AbortSignal } from 'bare-abort-controller';
import { callEngineFit } from './engine-fit.js';
import type { FitProbeRequest } from './engine-fit.js';
import type { FitRunResult } from './fit-outcome.js';
export interface RunInProcessFitOptions {
    signal?: AbortSignal;
    stateDir?: string;
    callFit?: typeof callEngineFit;
}
export declare function crashMarkerPath(stateDir: string, probe: FitProbeRequest): string;
export declare function crashedMarkerPath(stateDir: string, probe: FitProbeRequest): string;
/**
 * Runs one engine's fitter in this process, for hosts that cannot spawn a
 * disposable child.
 *
 * There is no boundary here to contain a fitter that aborts: it takes the host
 * with it. A leftover `.running` marker is that abort, observed on the next
 * launch, and it is promoted to `.crashed` so the same request skips native
 * rather than repeating the abort. `timeoutMs` is not applied on this path.
 *
 * Fits of the same request can be in flight together. A `.running` marker this
 * process holds is not an abort, so it is shared and removed by the last fit.
 */
export declare function runInProcessFit(probe: FitProbeRequest, options?: RunInProcessFitOptions): Promise<FitRunResult>;