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Simpilfy thread::JoinInner. #92553

Merged
merged 1 commit into from
Jan 13, 2022
Merged

Simpilfy thread::JoinInner. #92553

merged 1 commit into from
Jan 13, 2022

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m-ou-se
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@m-ou-se m-ou-se commented Jan 4, 2022

JoinInner's native field was an Option, but that's unnecessary.

Also, thanks to Arc::get_mut, there's no unsafety needed in JoinInner::join().

@m-ou-se m-ou-se added A-runtime Area: std's runtime and "pre-main" init for handling backtraces, unwinds, stack overflows C-cleanup Category: PRs that clean code up or issues documenting cleanup. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Jan 4, 2022
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r? @kennytm

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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 Jan 4, 2022
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Mark-Simulacrum commented Jan 4, 2022 •
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FWIW it feels like naively the packet might be better represented as Arc<SyncOnceCell<Result<T>>>, but this PR seems good to me. (At the cost of an extra Once field).

@bors r+

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bors commented Jan 4, 2022

📌 Commit a45b3ac has been approved by Mark-Simulacrum

@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 Jan 4, 2022
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m-ou-se commented Jan 4, 2022

I'll be replacing Packet in the implementation for rust-lang/rfcs#3151. This was just a small clean-up to make that change slightly easier.

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@bors rollup=never (might affect perf, just in case)

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bors commented Jan 13, 2022

⌛ Testing commit a45b3ac with merge 256721e...

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bors commented Jan 13, 2022

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing 256721e to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jan 13, 2022
@bors bors merged commit 256721e into rust-lang:master Jan 13, 2022
@rustbot rustbot added this to the 1.60.0 milestone Jan 13, 2022
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Finished benchmarking commit (256721e): comparison url.

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

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

@rustbot label: -perf-regression

@m-ou-se m-ou-se deleted the thread-join-simplify branch January 13, 2022 13:21
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A-runtime Area: std's runtime and "pre-main" init for handling backtraces, unwinds, stack overflows C-cleanup Category: PRs that clean code up or issues documenting cleanup. merged-by-bors This PR was explicitly merged by bors. 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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