export declare const OWNED_PROCESS_SCHEMA_VERSION: "neurcode.owned-process.v1";
export interface OwnedProcessIdentity {
    schemaVersion: typeof OWNED_PROCESS_SCHEMA_VERSION;
    jobId: string;
    pid: number;
    processStartFingerprint: string | null;
    processGroupId: number | null;
    createdAt: string;
}
export type OwnedProcessState = 'alive_same' | 'dead' | 'reused' | 'unknown';
export declare function processExists(pid: number | null | undefined): boolean;
export declare function processStartFingerprint(pid: number): string | null;
export declare function processGroupId(pid: number): number | null;
export declare function inspectOwnedProcess(pid: number | null | undefined, expectedStartFingerprint: string | null | undefined): OwnedProcessState;
export declare function createOwnedProcessIdentity(input?: {
    jobId?: string;
    pid?: number;
    processGroupId?: number | null;
}): OwnedProcessIdentity;
export declare function readOwnedProcessIdentity(path: string): OwnedProcessIdentity | null;
/**
 * Reclaim only when ownership is positively abandoned. Malformed metadata remains locked:
 * inability to prove ownership is not permission to delete another worker's lock.
 */
export declare function reclaimAbandonedOwnedFile(path: string): boolean;
export declare function writeOwnedProcessIdentity(descriptor: number, owner: OwnedProcessIdentity): void;
/**
 * Publish complete lock metadata atomically. The fully written temporary inode is hard-linked
 * into the lock path, so readers never observe the partial-write window created by open+write.
 */
export declare function acquireOwnedFile(path: string, owner: OwnedProcessIdentity): boolean;
export declare function releaseOwnedFile(path: string, owner: OwnedProcessIdentity): boolean;
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