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denoland-deno/ext/node/polyfills/02_init.js
Bartek Iwańczuk d69aab62b0
fix(ext/node): make worker setup synchronous (#22815)
This commit fixes race condition in "node:worker_threads" module were
the first message did a setup of "threadId", "workerData" and
"environmentData".
Now this data is passed explicitly during workers creation and is set up
before any user code is executed.

Closes https://github.com/denoland/deno/issues/22783
Closes https://github.com/denoland/deno/issues/22672

---------

Co-authored-by: Satya Rohith <me@satyarohith.com>
2024-03-11 23:18:03 +01:00

60 lines
2 KiB
JavaScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// deno-lint-ignore-file
import { internals } from "ext:core/mod.js";
const requireImpl = internals.requireImpl;
import { nodeGlobals } from "ext:deno_node/00_globals.js";
import "node:module";
let initialized = false;
function initialize(
usesLocalNodeModulesDir,
argv0,
runningOnMainThread,
maybeWorkerMetadata,
) {
if (initialized) {
throw Error("Node runtime already initialized");
}
initialized = true;
if (usesLocalNodeModulesDir) {
requireImpl.setUsesLocalNodeModulesDir();
}
const nativeModuleExports = requireImpl.nativeModuleExports;
nodeGlobals.Buffer = nativeModuleExports["buffer"].Buffer;
nodeGlobals.clearImmediate = nativeModuleExports["timers"].clearImmediate;
nodeGlobals.clearInterval = nativeModuleExports["timers"].clearInterval;
nodeGlobals.clearTimeout = nativeModuleExports["timers"].clearTimeout;
nodeGlobals.console = nativeModuleExports["console"];
nodeGlobals.global = globalThis;
nodeGlobals.process = nativeModuleExports["process"];
nodeGlobals.setImmediate = nativeModuleExports["timers"].setImmediate;
nodeGlobals.setInterval = nativeModuleExports["timers"].setInterval;
nodeGlobals.setTimeout = nativeModuleExports["timers"].setTimeout;
nodeGlobals.performance = nativeModuleExports["perf_hooks"].performance;
// FIXME(bartlomieju): not nice to depend on `Deno` namespace here
// but it's the only way to get `args` and `version` and this point.
internals.__bootstrapNodeProcess(argv0, Deno.args, Deno.version);
internals.__initWorkerThreads(runningOnMainThread, maybeWorkerMetadata);
internals.__setupChildProcessIpcChannel();
// `Deno[Deno.internal].requireImpl` will be unreachable after this line.
delete internals.requireImpl;
}
function loadCjsModule(moduleName, isMain, inspectBrk) {
if (inspectBrk) {
requireImpl.setInspectBrk();
}
requireImpl.Module._load(moduleName, null, { main: isMain });
}
globalThis.nodeBootstrap = initialize;
internals.node = {
initialize,
loadCjsModule,
};