/**
 * Concurrency Control Types
 */
import type { PartitionKey } from '../partition-key/types';
/**
 * Concurrency control configuration.
 */
export interface ConcurrencyConfig {
    /** Maximum number of concurrent executions allowed. */
    maxConcurrent: number;
    /** Maximum time in ms to wait in queue (0 = no wait). @default 0 */
    queueTimeoutMs?: number;
    /** Partition key strategy. @default 'global' */
    partitionBy?: PartitionKey;
}
/**
 * A semaphore ticket representing an acquired concurrency slot.
 */
export interface SemaphoreTicket {
    ticket: string;
    release: () => Promise<void>;
}