export declare const DEFAULT_PROCESS_MARKER_TIMEOUT_MS = 5000;
export declare const DEFAULT_WINDOWS_PROCESS_MARKER_TIMEOUT_MS = 30000;
export declare function buildWindowsTaskkillArguments(pid: number, options: {
    tree: boolean;
    force: boolean;
}): string[];
export declare function defaultProcessMarkerTimeoutMs(platform?: NodeJS.Platform): number;
export declare function isProcessAlive(pid: number): boolean;
export declare function shouldDetachChildProcessForTree(platform?: NodeJS.Platform): boolean;
/**
 * Returns an OS-owned process creation marker for the rare case where the
 * Engine control endpoint is unavailable. The marker is only comparable on
 * the same host and is never used as the normal health signal.
 */
export declare function queryProcessStartMarker(pid: number, platform?: NodeJS.Platform, timeoutMs?: number): string | undefined;
export declare function buildWindowsProcessStartMarkerScript(pid: number): string;
export declare function processStartMarkersMatch(expected: string | undefined, actual: string | undefined, platform?: NodeJS.Platform): boolean;
export declare function queryProcessCommandLine(pid: number, platform?: NodeJS.Platform): string | undefined;
/** Read another process's working directory where the host OS exposes it. */
export declare function queryProcessWorkingDirectory(pid: number, platform?: NodeJS.Platform): string | undefined;
/** Read the file backing an inherited process descriptor, used for legacy logs. */
export declare function queryProcessFileDescriptorPath(pid: number, descriptor: number, platform?: NodeJS.Platform): string | undefined;
/** Read one environment value from an existing process when the OS exposes it. */
export declare function queryProcessEnvironmentValue(pid: number, name: string, platform?: NodeJS.Platform): string | undefined;
export declare function waitForProcessStartMarker(pid: number, platform?: NodeJS.Platform, timeoutMs?: number, intervalMs?: number): string | undefined;
export declare function forceTerminateProcessTree(pid: number, platform?: NodeJS.Platform): void;
/**
 * Force-stops only the selected process on Windows. This is intentionally
 * separate from forceTerminateProcessTree: a detached lifecycle worker can
 * still be recorded by Windows as a descendant of the Engine that launched
 * it, so taskkill /T would destroy the worker responsible for recovery.
 */
export declare function forceTerminateSingleProcess(pid: number, platform?: NodeJS.Platform): void;
export declare function terminateSpawnedProcessTree(pid: number, force: boolean, platform?: NodeJS.Platform): void;
export declare function waitForProcessExit(pid: number, timeoutMs: number, intervalMs?: number): Promise<boolean>;