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net: fix named pipe connect #5208

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merged 5 commits into from Nov 20, 2022
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Closes: #5170

@satakuma satakuma marked this pull request as ready for review November 18, 2022 20:52
@Darksonn Darksonn added A-tokio Area: The main tokio crate M-net Module: tokio/net labels Nov 18, 2022
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Can you please make sure that we have a test for both inbound = false and inbound = true, since this seems to be causing trouble?

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I added a test with different inbound/outbound access settings. It fails (hangs) both on master and with my previous, flawed solution.

Comment on lines 357 to 358
// Wait for the server to call connect.
time::sleep(Duration::from_millis(10)).await;
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We can't have tests that depend on timing. They are brittle, and make the test suite take a long time. 10 ms sleeps add up to seconds surprisingly quickly if you have lots of tests.

You can do something like this:

let (tx, rx) = tokio::sync::oneshot::channel();
let server = tokio::spawn(async move {
    let s = ServerOptions::new()
        .access_inbound(inb)
        .access_outbound(outb)
        .create(PIPE_NAME)?;

    let mut connect_fut = tokio_test::task::spawn(s.connect());
    assert!(connect_fut.poll().is_pending());

    let _ = tx.send(());

    connect_fut.await.unwrap();
});

// Wait for the server to call connect.
rx.await.unwrap();
let _ = ClientOptions::new().read(outb).write(inb).open(PIPE_NAME)?;

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Sure!

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Thanks.

@Darksonn Darksonn enabled auto-merge (squash) November 20, 2022 20:36
@Darksonn Darksonn merged commit 2682c50 into tokio-rs:master Nov 20, 2022
@satakuma satakuma deleted the alice/fix-named-pipe branch November 20, 2022 21:07
carllerche added a commit that referenced this pull request Dec 5, 2022
 - net: fix Windows named pipe connect ([#5208])
 - io: support vectored writes for `ChildStdin` ([#5216])
 - io: fix `async fn ready()` false positive for OS-specific events ([#5231])

 ### Changed
 - runtime: `yield_now` defers task until after driver poll ([#5223])
 - runtime: reduce amount of codegen needed per spawned task ([#5213])
 - windows: replace `winapi` dependency with `windows-sys` ([#5204])

 [#5208]: #5208
 [#5216]: #5216
 [#5213]: #5213
 [#5204]: #5204
 [#5223]: #5223
 [#5231]: #5231
carllerche added a commit that referenced this pull request Dec 5, 2022
### Fixed
 - net: fix Windows named pipe connect ([#5208])
 - io: support vectored writes for `ChildStdin` ([#5216])
 - io: fix `async fn ready()` false positive for OS-specific events ([#5231])

 ### Changed
 - runtime: `yield_now` defers task until after driver poll ([#5223])
 - runtime: reduce amount of codegen needed per spawned task ([#5213])
 - windows: replace `winapi` dependency with `windows-sys` ([#5204])

 [#5208]: #5208
 [#5216]: #5216
 [#5213]: #5213
 [#5204]: #5204
 [#5223]: #5223
 [#5231]: #5231
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this pull request Dec 23, 2022
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dependencies | minor | `1.22.0` -> `1.23.0` |
| [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dev-dependencies | minor | `1.22.0` -> `1.23.0` |

---

### Release Notes

<details>
<summary>tokio-rs/tokio</summary>

### [`v1.23.0`](https://github.com/tokio-rs/tokio/releases/tag/tokio-1.23.0): Tokio v1.23.0

[Compare Source](tokio-rs/tokio@tokio-1.22.0...tokio-1.23.0)

##### Fixed

-   net: fix Windows named pipe connect ([#&#8203;5208])
-   io: support vectored writes for `ChildStdin` ([#&#8203;5216])
-   io: fix `async fn ready()` false positive for OS-specific events ([#&#8203;5231])

##### Changed

-   runtime: `yield_now` defers task until after driver poll ([#&#8203;5223])
-   runtime: reduce amount of codegen needed per spawned task ([#&#8203;5213])
-   windows: replace `winapi` dependency with `windows-sys` ([#&#8203;5204])

[#&#8203;5208]: tokio-rs/tokio#5208

[#&#8203;5216]: tokio-rs/tokio#5216

[#&#8203;5213]: tokio-rs/tokio#5213

[#&#8203;5204]: tokio-rs/tokio#5204

[#&#8203;5223]: tokio-rs/tokio#5223

[#&#8203;5231]: tokio-rs/tokio#5231

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC43MC4wIiwidXBkYXRlZEluVmVyIjoiMzQuNzAuMCJ9-->

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1687
Reviewed-by: crapStone <crapstone@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
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Strange freezing behavior of unidirectional Windows named pipes on single-threaded runtime
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