2023-05-12 13:52:40 +08:00

52 lines
1.4 KiB
TypeScript

// Type definitions for node-pool 3.1
// Derived from https://github.com/DefinitelyTyped/DefinitelyTyped
// -> https://github.com/DefinitelyTyped/DefinitelyTyped/blob/454dcbcbe5e932010b128dca9793758dd28adb45/types/generic-pool/index.d.ts
/// <reference types="node" />
import { EventEmitter } from "events";
export class Pool<T> extends EventEmitter {
spareResourceCapacity: number;
size: number;
available: number;
borrowed: number;
pending: number;
max: number;
min: number;
start(): void;
acquire(priority?: number): Promise<T>;
release(resource: T): Promise<void>;
destroy(resource: T): Promise<void>;
drain(): Promise<void>;
clear(): Promise<void>;
use<U>(cb: (resource: T) => U | Promise<U>): Promise<U>;
isBorrowedResource(resource: T): boolean;
ready(): Promise<void>;
}
export interface Factory<T> {
create(): Promise<T>;
destroy(client: T): Promise<void>;
validate?(client: T): Promise<boolean>;
}
export interface Options {
max?: number;
min?: number;
maxWaitingClients?: number;
testOnBorrow?: boolean;
testOnReturn?: boolean;
acquireTimeoutMillis?: number;
fifo?: boolean;
priorityRange?: number;
autostart?: boolean;
evictionRunIntervalMillis?: number;
numTestsPerEvictionRun?: number;
softIdleTimeoutMillis?: number;
idleTimeoutMillis?: number;
}
export function createPool<T>(factory: Factory<T>, opts?: Options): Pool<T>;