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perf(ext/node): lazily listen to the abort signal of request object (#29071)

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Yoshiya Hinosawa 2025-04-29 20:44:09 +09:00 • committed by GitHub
parent 2221cf3e7c
commit d1f7969570
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1 changed files with 20 additions and 7 deletions
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27
ext/node/polyfills/http.ts
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@ -130,15 +130,18 @@ function validateHost(host, name) {
const INVALID_PATH_REGEX = /[^\u0021-\u00ff]/;
const kError = Symbol("kError");
const kBindToAbortSignal = Symbol("kBindToAbortSignal");
class FakeSocket extends EventEmitter {
/** Stores the underlying request for lazily binding to abort signal */
#request: Request | undefined;
constructor(
opts: {
encrypted?: boolean | undefined;
remotePort?: number | undefined;
remoteAddress?: string | undefined;
reader?: ReadableStreamDefaultReader | undefined;
signal?: AbortSignal | undefined;
request?: Request;
} = {},
) {
super();
@ -148,8 +151,13 @@ class FakeSocket extends EventEmitter {
this.reader = opts.reader;
this.writable = true;
this.readable = true;
opts.signal?.addEventListener("abort", () => {
this.emit("error", opts.signal?.reason ?? new Error("aborted"));
this.#request = opts.request;
}
[kBindToAbortSignal]() {
const signal = this.#request?.signal;
signal?.addEventListener("abort", () => {
this.emit("error", signal.reason);
this.emit("close");
}, { once: true });
}
@ -1499,9 +1507,14 @@ export const ServerResponse = function (
this._readable = readable;
this._resolve = resolve;
this.socket = socket;
this.socket?.on("close", () => {
if (!this.finished) {
this.end();
this.on("newListener", (event) => {
if (event === "close") {
this.socket?.[kBindToAbortSignal]();
this.socket?.on("close", () => {
if (!this.finished) {
this.emit("close");
}
});
}
});
this._header = "";
@ -1936,7 +1949,7 @@ export class ServerImpl extends EventEmitter {
remotePort: info.remoteAddr.port,
encrypted: this._encrypted,
reader: request.body?.getReader(),
signal: request.signal,
request,
});
const req = new IncomingMessageForServer(socket);