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denoland-deno/ext/node/polyfills/internal_binding/connection_wrap.ts
2024-01-05 15:03:06 +00:00

94 lines
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TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// This module ports:
// - https://github.com/nodejs/node/blob/master/src/connection_wrap.cc
// - https://github.com/nodejs/node/blob/master/src/connection_wrap.h
import { LibuvStreamWrap } from "ext:deno_node/internal_binding/stream_wrap.ts";
import {
AsyncWrap,
providerType,
} from "ext:deno_node/internal_binding/async_wrap.ts";
interface Reader {
read(p: Uint8Array): Promise<number | null>;
}
interface Writer {
write(p: Uint8Array): Promise<number>;
}
export interface Closer {
close(): void;
}
type Ref = { ref(): void; unref(): void };
export class ConnectionWrap extends LibuvStreamWrap {
/** Optional connection callback. */
onconnection: ((status: number, handle?: ConnectionWrap) => void) | null =
null;
/**
* Creates a new ConnectionWrap class instance.
* @param provider Provider type.
* @param object Optional stream object.
*/
constructor(
provider: providerType,
object?: Reader & Writer & Closer & Ref,
) {
super(provider, object);
}
/**
* @param req A connect request.
* @param status An error status code.
*/
afterConnect<
T extends AsyncWrap & {
oncomplete(
status: number,
handle: ConnectionWrap,
req: T,
readable: boolean,
writeable: boolean,
): void;
},
>(
req: T,
status: number,
) {
const isSuccessStatus = !status;
const readable = isSuccessStatus;
const writable = isSuccessStatus;
try {
req.oncomplete(status, this, req, readable, writable);
} catch {
// swallow callback errors.
}
return;
}
}