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denoland-deno/ext/node
Nathan Whitaker cd59fc53a5
fix(node): Rework node:child_process IPC (#24763)
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
2024-07-30 16:13:24 -07:00
..
benchmarks fix(node): Rework node:child_process IPC (#24763) 2024-07-30 16:13:24 -07:00
ops fix(node): Rework node:child_process IPC (#24763) 2024-07-30 16:13:24 -07:00
polyfills fix(node): Rework node:child_process IPC (#24763) 2024-07-30 16:13:24 -07:00
build.rs chore: update copyright to 2024 (#21753) 2024-01-01 19:58:21 +00:00
Cargo.toml fix(node): Rework node:child_process IPC (#24763) 2024-07-30 16:13:24 -07:00
clippy.toml refactor(ext/fs): deno_fs::FileSystem - conditional Send + Sync (#18993) 2023-05-08 11:02:02 -04:00
global.rs refactor: decouple node resolution from deno_core (#24724) 2024-07-25 19:08:14 -04:00
lib.rs fix(node): Rework node:child_process IPC (#24763) 2024-07-30 16:13:24 -07:00
polyfill.rs refactor: decouple node resolution from deno_core (#24724) 2024-07-25 19:08:14 -04:00
README.md chore(ext/node): correct publishing for ext/node (#15461) 2022-08-11 17:25:41 -04:00

deno_node

require and other node related functionality for Deno.