1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-25 00:29:09 -05:00
denoland-deno/cli/js/net.ts
crowlKats e435c2be15
Remove doc strings from cli/js TS files (#4329)
Co-authored-by: Ryan Dahl <ry@tinyclouds.org>
2020-03-13 10:22:22 +01:00

190 lines
4.4 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { errors } from "./errors.ts";
import { EOF, Reader, Writer, Closer } from "./io.ts";
import { read, write } from "./ops/io.ts";
import { close } from "./ops/resources.ts";
import * as netOps from "./ops/net.ts";
import { Transport } from "./ops/net.ts";
export { ShutdownMode, shutdown, Transport } from "./ops/net.ts";
export interface Addr {
transport: Transport;
hostname: string;
port: number;
}
export interface UDPAddr {
transport?: Transport;
hostname?: string;
port: number;
}
export interface UDPConn extends AsyncIterable<[Uint8Array, Addr]> {
receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
send(p: Uint8Array, addr: UDPAddr): Promise<void>;
close(): void;
addr: Addr;
[Symbol.asyncIterator](): AsyncIterator<[Uint8Array, Addr]>;
}
export interface Listener extends AsyncIterable<Conn> {
accept(): Promise<Conn>;
close(): void;
addr: Addr;
[Symbol.asyncIterator](): AsyncIterator<Conn>;
}
export class ConnImpl implements Conn {
constructor(
readonly rid: number,
readonly remoteAddr: Addr,
readonly localAddr: Addr
) {}
write(p: Uint8Array): Promise<number> {
return write(this.rid, p);
}
read(p: Uint8Array): Promise<number | EOF> {
return read(this.rid, p);
}
close(): void {
close(this.rid);
}
closeRead(): void {
netOps.shutdown(this.rid, netOps.ShutdownMode.Read);
}
closeWrite(): void {
netOps.shutdown(this.rid, netOps.ShutdownMode.Write);
}
}
export class ListenerImpl implements Listener {
constructor(readonly rid: number, readonly addr: Addr) {}
async accept(): Promise<Conn> {
const res = await netOps.accept(this.rid);
return new ConnImpl(res.rid, res.remoteAddr, res.localAddr);
}
close(): void {
close(this.rid);
}
async *[Symbol.asyncIterator](): AsyncIterator<Conn> {
while (true) {
try {
yield await this.accept();
} catch (error) {
if (error instanceof errors.BadResource) {
break;
}
throw error;
}
}
}
}
export async function recvfrom(
rid: number,
p: Uint8Array
): Promise<[number, Addr]> {
const { size, remoteAddr } = await netOps.receive(rid, p);
return [size, remoteAddr];
}
export class UDPConnImpl implements UDPConn {
constructor(
readonly rid: number,
readonly addr: Addr,
public bufSize: number = 1024
) {}
async receive(p?: Uint8Array): Promise<[Uint8Array, Addr]> {
const buf = p || new Uint8Array(this.bufSize);
const [size, remoteAddr] = await recvfrom(this.rid, buf);
const sub = buf.subarray(0, size);
return [sub, remoteAddr];
}
async send(p: Uint8Array, addr: UDPAddr): Promise<void> {
const remote = { hostname: "127.0.0.1", transport: "udp", ...addr };
if (remote.transport !== "udp") throw Error("Remote transport must be UDP");
const args = { ...remote, rid: this.rid };
await netOps.send(args as netOps.SendRequest, p);
}
close(): void {
close(this.rid);
}
async *[Symbol.asyncIterator](): AsyncIterator<[Uint8Array, Addr]> {
while (true) {
try {
yield await this.receive();
} catch (error) {
if (error instanceof errors.BadResource) {
break;
}
throw error;
}
}
}
}
export interface Conn extends Reader, Writer, Closer {
localAddr: Addr;
remoteAddr: Addr;
rid: number;
closeRead(): void;
closeWrite(): void;
}
export interface ListenOptions {
port: number;
hostname?: string;
transport?: Transport;
}
export function listen(
options: ListenOptions & { transport?: "tcp" }
): Listener;
export function listen(options: ListenOptions & { transport: "udp" }): UDPConn;
export function listen({
port,
hostname = "0.0.0.0",
transport = "tcp"
}: ListenOptions): Listener | UDPConn {
const res = netOps.listen({ port, hostname, transport });
if (transport === "tcp") {
return new ListenerImpl(res.rid, res.localAddr);
} else {
return new UDPConnImpl(res.rid, res.localAddr);
}
}
export interface ConnectOptions {
port: number;
hostname?: string;
transport?: Transport;
}
export async function connect({
port,
hostname = "127.0.0.1",
transport = "tcp"
}: ConnectOptions): Promise<Conn> {
const res = await netOps.connect({ port, hostname, transport });
return new ConnImpl(res.rid, res.remoteAddr!, res.localAddr!);
}