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Diffstat (limited to 'node_modules/@types/node/ts4.8/cluster.d.ts')
| -rwxr-xr-x | node_modules/@types/node/ts4.8/cluster.d.ts | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/node_modules/@types/node/ts4.8/cluster.d.ts b/node_modules/@types/node/ts4.8/cluster.d.ts new file mode 100755 index 0000000..cf979cf --- /dev/null +++ b/node_modules/@types/node/ts4.8/cluster.d.ts @@ -0,0 +1,414 @@ +/** + * Clusters of Node.js processes can be used to run multiple instances of Node.js + * that can distribute workloads among their application threads. When process + * isolation is not needed, use the `worker_threads` module instead, which + * allows running multiple application threads within a single Node.js instance. + * + * The cluster module allows easy creation of child processes that all share + * server ports. + * + * ```js + * import cluster from 'cluster'; + * import http from 'http'; + * import { cpus } from 'os'; + * import process from 'process'; + * + * const numCPUs = cpus().length; + * + * if (cluster.isPrimary) { + * console.log(`Primary ${process.pid} is running`); + * + * // Fork workers. + * for (let i = 0; i < numCPUs; i++) { + * cluster.fork(); + * } + * + * cluster.on('exit', (worker, code, signal) => { + * console.log(`worker ${worker.process.pid} died`); + * }); + * } else { + * // Workers can share any TCP connection + * // In this case it is an HTTP server + * http.createServer((req, res) => { + * res.writeHead(200); + * res.end('hello world\n'); + * }).listen(8000); + * + * console.log(`Worker ${process.pid} started`); + * } + * ``` + * + * Running Node.js will now share port 8000 between the workers: + * + * ```console + * $ node server.js + * Primary 3596 is running + * Worker 4324 started + * Worker 4520 started + * Worker 6056 started + * Worker 5644 started + * ``` + * + * On Windows, it is not yet possible to set up a named pipe server in a worker. + * @see [source](https://github.com/nodejs/node/blob/v18.0.0/lib/cluster.js) + */ +declare module 'cluster' { + import * as child from 'node:child_process'; + import EventEmitter = require('node:events'); + import * as net from 'node:net'; + type SerializationType = 'json' | 'advanced'; + export interface ClusterSettings { + execArgv?: string[] | undefined; // default: process.execArgv + exec?: string | undefined; + args?: string[] | undefined; + silent?: boolean | undefined; + stdio?: any[] | undefined; + uid?: number | undefined; + gid?: number | undefined; + inspectPort?: number | (() => number) | undefined; + serialization?: SerializationType | undefined; + cwd?: string | undefined; + windowsHide?: boolean | undefined; + } + export interface Address { + address: string; + port: number; + addressType: number | 'udp4' | 'udp6'; // 4, 6, -1, "udp4", "udp6" + } + /** + * A `Worker` object contains all public information and method about a worker. + * In the primary it can be obtained using `cluster.workers`. In a worker + * it can be obtained using `cluster.worker`. + * @since v0.7.0 + */ + export class Worker extends EventEmitter { + /** + * Each new worker is given its own unique id, this id is stored in the`id`. + * + * While a worker is alive, this is the key that indexes it in`cluster.workers`. + * @since v0.8.0 + */ + id: number; + /** + * All workers are created using `child_process.fork()`, the returned object + * from this function is stored as `.process`. In a worker, the global `process`is stored. + * + * See: `Child Process module`. + * + * Workers will call `process.exit(0)` if the `'disconnect'` event occurs + * on `process` and `.exitedAfterDisconnect` is not `true`. This protects against + * accidental disconnection. + * @since v0.7.0 + */ + process: child.ChildProcess; + /** + * Send a message to a worker or primary, optionally with a handle. + * + * In the primary, this sends a message to a specific worker. It is identical to `ChildProcess.send()`. + * + * In a worker, this sends a message to the primary. It is identical to`process.send()`. + * + * This example will echo back all messages from the primary: + * + * ```js + * if (cluster.isPrimary) { + * const worker = cluster.fork(); + * worker.send('hi there'); + * + * } else if (cluster.isWorker) { + * process.on('message', (msg) => { + * process.send(msg); + * }); + * } + * ``` + * @since v0.7.0 + * @param options The `options` argument, if present, is an object used to parameterize the sending of certain types of handles. `options` supports the following properties: + */ + send(message: child.Serializable, callback?: (error: Error | null) => void): boolean; + send(message: child.Serializable, sendHandle: child.SendHandle, callback?: (error: Error | null) => void): boolean; + send(message: child.Serializable, sendHandle: child.SendHandle, options?: child.MessageOptions, callback?: (error: Error | null) => void): boolean; + /** + * This function will kill the worker. In the primary worker, it does this by + * disconnecting the `worker.process`, and once disconnected, killing with`signal`. In the worker, it does it by killing the process with `signal`. + * + * The `kill()` function kills the worker process without waiting for a graceful + * disconnect, it has the same behavior as `worker.process.kill()`. + * + * This method is aliased as `worker.destroy()` for backwards compatibility. + * + * In a worker, `process.kill()` exists, but it is not this function; + * it is `kill()`. + * @since v0.9.12 + * @param [signal='SIGTERM'] Name of the kill signal to send to the worker process. + */ + kill(signal?: string): void; + destroy(signal?: string): void; + /** + * In a worker, this function will close all servers, wait for the `'close'` event + * on those servers, and then disconnect the IPC channel. + * + * In the primary, an internal message is sent to the worker causing it to call`.disconnect()` on itself. + * + * Causes `.exitedAfterDisconnect` to be set. + * + * After a server is closed, it will no longer accept new connections, + * but connections may be accepted by any other listening worker. Existing + * connections will be allowed to close as usual. When no more connections exist, + * see `server.close()`, the IPC channel to the worker will close allowing it + * to die gracefully. + * + * The above applies _only_ to server connections, client connections are not + * automatically closed by workers, and disconnect does not wait for them to close + * before exiting. + * + * In a worker, `process.disconnect` exists, but it is not this function; + * it is `disconnect()`. + * + * Because long living server connections may block workers from disconnecting, it + * may be useful to send a message, so application specific actions may be taken to + * close them. It also may be useful to implement a timeout, killing a worker if + * the `'disconnect'` event has not been emitted after some time. + * + * ```js + * if (cluster.isPrimary) { + * const worker = cluster.fork(); + * let timeout; + * + * worker.on('listening', (address) => { + * worker.send('shutdown'); + * worker.disconnect(); + * timeout = setTimeout(() => { + * worker.kill(); + * }, 2000); + * }); + * + * worker.on('disconnect', () => { + * clearTimeout(timeout); + * }); + * + * } else if (cluster.isWorker) { + * const net = require('net'); + * const server = net.createServer((socket) => { + * // Connections never end + * }); + * + * server.listen(8000); + * + * process.on('message', (msg) => { + * if (msg === 'shutdown') { + * // Initiate graceful close of any connections to server + * } + * }); + * } + * ``` + * @since v0.7.7 + * @return A reference to `worker`. + */ + disconnect(): void; + /** + * This function returns `true` if the worker is connected to its primary via its + * IPC channel, `false` otherwise. A worker is connected to its primary after it + * has been created. It is disconnected after the `'disconnect'` event is emitted. + * @since v0.11.14 + */ + isConnected(): boolean; + /** + * This function returns `true` if the worker's process has terminated (either + * because of exiting or being signaled). Otherwise, it returns `false`. + * + * ```js + * import cluster from 'cluster'; + * import http from 'http'; + * import { cpus } from 'os'; + * import process from 'process'; + * + * const numCPUs = cpus().length; + * + * if (cluster.isPrimary) { + * console.log(`Primary ${process.pid} is running`); + * + * // Fork workers. + * for (let i = 0; i < numCPUs; i++) { + * cluster.fork(); + * } + * + * cluster.on('fork', (worker) => { + * console.log('worker is dead:', worker.isDead()); + * }); + * + * cluster.on('exit', (worker, code, signal) => { + * console.log('worker is dead:', worker.isDead()); + * }); + * } else { + * // Workers can share any TCP connection. In this case, it is an HTTP server. + * http.createServer((req, res) => { + * res.writeHead(200); + * res.end(`Current process\n ${process.pid}`); + * process.kill(process.pid); + * }).listen(8000); + * } + * ``` + * @since v0.11.14 + */ + isDead(): boolean; + /** + * This property is `true` if the worker exited due to `.disconnect()`. + * If the worker exited any other way, it is `false`. If the + * worker has not exited, it is `undefined`. + * + * The boolean `worker.exitedAfterDisconnect` allows distinguishing between + * voluntary and accidental exit, the primary may choose not to respawn a worker + * based on this value. + * + * ```js + * cluster.on('exit', (worker, code, signal) => { + * if (worker.exitedAfterDisconnect === true) { + * console.log('Oh, it was just voluntary – no need to worry'); + * } + * }); + * + * // kill worker + * worker.kill(); + * ``` + * @since v6.0.0 + */ + exitedAfterDisconnect: boolean; + /** + * events.EventEmitter + * 1. disconnect + * 2. error + * 3. exit + * 4. listening + * 5. message + * 6. online + */ + addListener(event: string, listener: (...args: any[]) => void): this; + addListener(event: 'disconnect', listener: () => void): this; + addListener(event: 'error', listener: (error: Error) => void): this; + addListener(event: 'exit', listener: (code: number, signal: string) => void): this; + addListener(event: 'listening', listener: (address: Address) => void): this; + addListener(event: 'message', listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + addListener(event: 'online', listener: () => void): this; + emit(event: string | symbol, ...args: any[]): boolean; + emit(event: 'disconnect'): boolean; + emit(event: 'error', error: Error): boolean; + emit(event: 'exit', code: number, signal: string): boolean; + emit(event: 'listening', address: Address): boolean; + emit(event: 'message', message: any, handle: net.Socket | net.Server): boolean; + emit(event: 'online'): boolean; + on(event: string, listener: (...args: any[]) => void): this; + on(event: 'disconnect', listener: () => void): this; + on(event: 'error', listener: (error: Error) => void): this; + on(event: 'exit', listener: (code: number, signal: string) => void): this; + on(event: 'listening', listener: (address: Address) => void): this; + on(event: 'message', listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + on(event: 'online', listener: () => void): this; + once(event: string, listener: (...args: any[]) => void): this; + once(event: 'disconnect', listener: () => void): this; + once(event: 'error', listener: (error: Error) => void): this; + once(event: 'exit', listener: (code: number, signal: string) => void): this; + once(event: 'listening', listener: (address: Address) => void): this; + once(event: 'message', listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + once(event: 'online', listener: () => void): this; + prependListener(event: string, listener: (...args: any[]) => void): this; + prependListener(event: 'disconnect', listener: () => void): this; + prependListener(event: 'error', listener: (error: Error) => void): this; + prependListener(event: 'exit', listener: (code: number, signal: string) => void): this; + prependListener(event: 'listening', listener: (address: Address) => void): this; + prependListener(event: 'message', listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + prependListener(event: 'online', listener: () => void): this; + prependOnceListener(event: string, listener: (...args: any[]) => void): this; + prependOnceListener(event: 'disconnect', listener: () => void): this; + prependOnceListener(event: 'error', listener: (error: Error) => void): this; + prependOnceListener(event: 'exit', listener: (code: number, signal: string) => void): this; + prependOnceListener(event: 'listening', listener: (address: Address) => void): this; + prependOnceListener(event: 'message', listener: (message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + prependOnceListener(event: 'online', listener: () => void): this; + } + export interface Cluster extends EventEmitter { + disconnect(callback?: () => void): void; + fork(env?: any): Worker; + /** @deprecated since v16.0.0 - use isPrimary. */ + readonly isMaster: boolean; + readonly isPrimary: boolean; + readonly isWorker: boolean; + schedulingPolicy: number; + readonly settings: ClusterSettings; + /** @deprecated since v16.0.0 - use setupPrimary. */ + setupMaster(settings?: ClusterSettings): void; + /** + * `setupPrimary` is used to change the default 'fork' behavior. Once called, the settings will be present in cluster.settings. + */ + setupPrimary(settings?: ClusterSettings): void; + readonly worker?: Worker | undefined; + readonly workers?: NodeJS.Dict<Worker> | undefined; + readonly SCHED_NONE: number; + readonly SCHED_RR: number; + /** + * events.EventEmitter + * 1. disconnect + * 2. exit + * 3. fork + * 4. listening + * 5. message + * 6. online + * 7. setup + */ + addListener(event: string, listener: (...args: any[]) => void): this; + addListener(event: 'disconnect', listener: (worker: Worker) => void): this; + addListener(event: 'exit', listener: (worker: Worker, code: number, signal: string) => void): this; + addListener(event: 'fork', listener: (worker: Worker) => void): this; + addListener(event: 'listening', listener: (worker: Worker, address: Address) => void): this; + addListener(event: 'message', listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + addListener(event: 'online', listener: (worker: Worker) => void): this; + addListener(event: 'setup', listener: (settings: ClusterSettings) => void): this; + emit(event: string | symbol, ...args: any[]): boolean; + emit(event: 'disconnect', worker: Worker): boolean; + emit(event: 'exit', worker: Worker, code: number, signal: string): boolean; + emit(event: 'fork', worker: Worker): boolean; + emit(event: 'listening', worker: Worker, address: Address): boolean; + emit(event: 'message', worker: Worker, message: any, handle: net.Socket | net.Server): boolean; + emit(event: 'online', worker: Worker): boolean; + emit(event: 'setup', settings: ClusterSettings): boolean; + on(event: string, listener: (...args: any[]) => void): this; + on(event: 'disconnect', listener: (worker: Worker) => void): this; + on(event: 'exit', listener: (worker: Worker, code: number, signal: string) => void): this; + on(event: 'fork', listener: (worker: Worker) => void): this; + on(event: 'listening', listener: (worker: Worker, address: Address) => void): this; + on(event: 'message', listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + on(event: 'online', listener: (worker: Worker) => void): this; + on(event: 'setup', listener: (settings: ClusterSettings) => void): this; + once(event: string, listener: (...args: any[]) => void): this; + once(event: 'disconnect', listener: (worker: Worker) => void): this; + once(event: 'exit', listener: (worker: Worker, code: number, signal: string) => void): this; + once(event: 'fork', listener: (worker: Worker) => void): this; + once(event: 'listening', listener: (worker: Worker, address: Address) => void): this; + once(event: 'message', listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; // the handle is a net.Socket or net.Server object, or undefined. + once(event: 'online', listener: (worker: Worker) => void): this; + once(event: 'setup', listener: (settings: ClusterSettings) => void): this; + prependListener(event: string, listener: (...args: any[]) => void): this; + prependListener(event: 'disconnect', listener: (worker: Worker) => void): this; + prependListener(event: 'exit', listener: (worker: Worker, code: number, signal: string) => void): this; + prependListener(event: 'fork', listener: (worker: Worker) => void): this; + prependListener(event: 'listening', listener: (worker: Worker, address: Address) => void): this; + // the handle is a net.Socket or net.Server object, or undefined. + prependListener(event: 'message', listener: (worker: Worker, message: any, handle?: net.Socket | net.Server) => void): this; + prependListener(event: 'online', listener: (worker: Worker) => void): this; + prependListener(event: 'setup', listener: (settings: ClusterSettings) => void): this; + prependOnceListener(event: string, listener: (...args: any[]) => void): this; + prependOnceListener(event: 'disconnect', listener: (worker: Worker) => void): this; + prependOnceListener(event: 'exit', listener: (worker: Worker, code: number, signal: string) => void): this; + prependOnceListener(event: 'fork', listener: (worker: Worker) => void): this; + prependOnceListener(event: 'listening', listener: (worker: Worker, address: Address) => void): this; + // the handle is a net.Socket or net.Server object, or undefined. + prependOnceListener(event: 'message', listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this; + prependOnceListener(event: 'online', listener: (worker: Worker) => void): this; + prependOnceListener(event: 'setup', listener: (settings: ClusterSettings) => void): this; + } + const cluster: Cluster; + export default cluster; +} +declare module 'node:cluster' { + export * from 'cluster'; + export { default as default } from 'cluster'; +} |