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Fix crash when using RecordingStream::set_thread_local on macOS #3929

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merged 8 commits into from
Oct 20, 2023

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@emilk emilk commented Oct 19, 2023

What

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  • I have read and agree to Contributor Guide and the Code of Conduct
  • I've included a screenshot or gif (if applicable)
  • I have tested demo.rerun.io (if applicable)
  • The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG

@emilk emilk added 💣 crash crash, deadlock/freeze, do-no-start include in changelog 🦀 Rust API Rust logging API 🌊 C++ API C/C++ API specific labels Oct 19, 2023
@Wumpf Wumpf self-requested a review October 19, 2023 15:23
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shudder

great detective work though :notbad:

crates/re_sdk/src/global.rs Outdated Show resolved Hide resolved
re_log::warn!("Using thread-local RecordingStream on macOS can result in data loss because of https://github.com/rerun-io/rerun/issues/2889");

// Give the batchet and sink threads a chance to process the data.
std::thread::sleep(std::time::Duration::from_millis(500));
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Tbh not sure if we already talked about this, but there's no way easy way right now to know whether the threads are still busy, right? Would be nice to be able to tell them to join instead 🤔
Adding 500ms to our shutdown time is pretty awful and error prone.

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Yeah, it's not great, but we would need to check if all the queues are empty and the threads non-busy all the way down, and it is not trivial

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I'll open a new issue (and close the old one) as a future TODO

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Co-authored-by: Andreas Reich <[email protected]>
@emilk emilk merged commit a8bb2f1 into main Oct 20, 2023
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@emilk emilk deleted the emilk/workaround-thread-crash-on-mac branch October 20, 2023 06:47
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