passsy / timeout-doesnt-stop-the-workr2

A Timeout Doesn't Stop the Work

Public

Racing a timer against a future does not cancel the loser, which keeps its socket or connection; cancel at the source with a real primitive.

detector.tsisolate · reads files, writes none · no network · 100 ms · 32 MBEdit

import { onWrite } from "@wellactually/sdk/v3";

/**
 * No prompt handler: "timeout" in conversation is a test timeout or a config value
 * far more often than a race. The written race shapes are the signal, in any
 * language.
 *
 * None of these race-a-timer shapes cancel the loser: `asyncio.wait(` is the
 * racing form, `asyncio.wait_for(` cancels and does not match because the `_`
 * comes before the paren.
 */
onWrite({
  globs: ["!**/*.{g,freezed,gr,config,mocks}.dart"],
  *detect(event) {
    for (const written of event.written) {
      if (/Promise\.race\(|Future\.any\(|asyncio\.wait\(|select!|\.timeout\(/.test(written.text)) {
        yield { line: written.line };
      }
    }
  },
});

package.jsonEdit

{
  "name": "timeout-doesnt-stop-the-work",
  "private": true
}