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Use futex-based locks and thread parker on {Free, Open, DragonFly}BSD.#96510

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Use futex-based locks and thread parker on {Free, Open, DragonFly}BSD.#96510
bors merged 11 commits intorust-lang:masterfrom
m-ou-se:futex-bsd

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@m-ou-se m-ou-se commented Apr 28, 2022 •
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This switches *BSD to our futex-based locks and thread parker.

Tracking issue: #93740

r? @Amanieu

@m-ou-se m-ou-se added A-concurrency Area: Concurrency O-openbsd Operating system: OpenBSD O-freebsd Operating system: FreeBSD O-netbsd Operating system: NetBSD S-blocked Status: Blocked on something else such as an RFC or other implementation work. O-dragonfly Operating system: DragonFly BSD T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Apr 28, 2022
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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 28, 2022
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m-ou-se commented Apr 28, 2022

cc @semarie

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@m-ou-se m-ou-se marked this pull request as ready for review April 29, 2022 18:02
@m-ou-se m-ou-se removed the S-blocked Status: Blocked on something else such as an RFC or other implementation work. label Apr 29, 2022
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The implementation mostly looks good to me. Have you actually tested these on a BSD system? We don't test those in CI.

@m-ou-se m-ou-se changed the title Use futex-based locks and thread parker on {Free, Open, Net, DragonFly}BSD. Use futex-based locks and thread parker on {Free, Open, DragonFly}BSD. May 3, 2022
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Remove condvar::two_mutexes test.
21c5f78 
We don't guarantee this panics. On most platforms it doesn't anymore.
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m-ou-se commented May 5, 2022

I've tested this change on FreeBSD, and all of std's test pass just fine.

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Amanieu commented May 5, 2022

@bors r+ rollup=never

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bors commented May 5, 2022

📌 Commit 21c5f78 has been approved by Amanieu

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 5, 2022
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bors commented May 5, 2022

⌛ Testing commit 21c5f78 with merge 3beddd083e1fd318b89445a6282e80c46da01c5f...

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bors commented May 5, 2022

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels May 5, 2022
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rust-log-analyzer commented May 6, 2022

The job x86_64-gnu-tools failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot) 
.......... (60/63)
..        (63/63)


/checkout/src/test/rustdoc-gui/search-filter.goml search-filter... FAILED
[ERROR] (line 6) TimeoutError: waiting for selector "#titles" failed: timeout 30000ms exceeded: for command `wait-for: "#titles"`
Build completed unsuccessfully in 0:00:45

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m-ou-se commented May 6, 2022

@bors retry

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 6, 2022
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bors commented May 6, 2022

⌛ Testing commit 21c5f78 with merge 7f9e013...

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bors commented May 6, 2022

☀️ Test successful - checks-actions
Approved by: Amanieu
Pushing 7f9e013 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label May 6, 2022
@bors bors merged commit 7f9e013 into rust-lang:master May 6, 2022
@rustbot rustbot added this to the 1.62.0 milestone May 6, 2022
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@m-ou-se m-ou-se deleted the futex-bsd branch May 6, 2022 10:05
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rust-timer commented May 6, 2022

Finished benchmarking commit (7f9e013): comparison url.

Summary: This benchmark run did not return any relevant results.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

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A-concurrency Area: Concurrency merged-by-bors This PR was explicitly merged by bors. O-dragonfly Operating system: DragonFly BSD O-freebsd Operating system: FreeBSD O-netbsd Operating system: NetBSD O-openbsd Operating system: OpenBSD S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-libs Relevant to the library team, which will review and decide on the PR/issue.

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