cd59fc53a5
Fixes https://github.com/denoland/deno/issues/24756. Fixes https://github.com/denoland/deno/issues/24796. This also gets vitest working when using [`--pool=forks`](https://vitest.dev/guide/improving-performance#pool) (which is the default as of vitest 2.0). Ref https://github.com/denoland/deno/issues/23882. --- This PR resolves a handful of issues with child_process IPC. In particular: - We didn't support sending typed array views over IPC - Opening an IPC channel resulted in the event loop never exiting - Sending a `null` over IPC would terminate the channel - There was some UB in the read implementation (transmuting an `&[u8]` to `&mut [u8]`) - The `send` method wasn't returning anything, so there was no way to signal backpressure (this also resulted in the benchmark `child_process_ipc.mjs` being misleading, as it tried to respect backpressure. That gave node much worse results at larger message sizes, and gave us much worse results at smaller message sizes). - We weren't setting up the `channel` property on the `process` global (or on the `ChildProcess` object), and also didn't have a way to ref/unref the channel - Calling `kill` multiple times (or disconnecting the channel, then calling kill) would throw an error - Node couldn't spawn a deno subprocess and communicate with it over IPC |
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|---|---|---|
| .cargo | ||
| .devcontainer | ||
| .github | ||
| bench_util | ||
| cli | ||
| ext | ||
| runtime | ||
| tests | ||
| tools | ||
| .dlint.json | ||
| .dprint.json | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .rustfmt.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| import_map.json | ||
| LICENSE.md | ||
| README.md | ||
| Releases.md | ||
| rust-toolchain.toml | ||
Deno
Deno
(/ˈdiːnoʊ/, pronounced
dee-no) is a JavaScript, TypeScript, and WebAssembly runtime with secure
defaults and a great developer experience. It's built on V8,
Rust, and Tokio.
Learn more about the Deno runtime in the documentation.
Installation
Install the Deno runtime on your system using one of the commands below. Note that there are a number of ways to install Deno - a comprehensive list of installation options can be found here.
Shell (Mac, Linux):
curl -fsSL https://deno.land/install.sh | sh
PowerShell (Windows):
irm https://deno.land/install.ps1 | iex
Homebrew (Mac):
brew install deno
Chocolatey (Windows):
choco install deno
Build and install from source
Complete instructions for building Deno from source can be found in the manual here.
Your first Deno program
Deno can be used for many different applications, but is most commonly used to
build web servers. Create a file called server.ts and include the following
TypeScript code:
Deno.serve((_req: Request) => {
return new Response("Hello, world!");
});
Run your server with the following command:
deno run --allow-net server.ts
This should start a local web server on http://localhost:8000.
Learn more about writing and running Deno programs in the docs.
Additional resources
- Deno Docs: official guides and reference docs for the Deno runtime, Deno Deploy, and beyond.
- Deno Standard Library: officially supported common utilities for Deno programs.
- deno.land/x: registry for third-party Deno modules.
- Developer Blog: Product updates, tutorials, and more from the Deno team.
Contributing
We appreciate your help! To contribute, please read our contributing instructions.