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| author | joboet <jonasboettiger@icloud.com> | 2024-04-03 14:33:43 +0200 |
|---|---|---|
| committer | joboet <jonasboettiger@icloud.com> | 2024-04-03 14:33:43 +0200 |
| commit | 061d8731fb0ab1d57d7a289fd0ded173ceef8a64 (patch) | |
| tree | b8bd5dbc47a0504a3f14b652253d61aa0ab8b263 /library/std/src/thread | |
| parent | e7b5730d36740035b9cf58b759be87d0d88515a7 (diff) | |
| download | rust-061d8731fb0ab1d57d7a289fd0ded173ceef8a64.tar.gz rust-061d8731fb0ab1d57d7a289fd0ded173ceef8a64.zip | |
std: add comment about abort motivation
Diffstat (limited to 'library/std/src/thread')
| -rw-r--r-- | library/std/src/thread/mod.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index a97122ca120..ae3dfef4870 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -686,6 +686,8 @@ thread_local! { /// /// Aborts if the handle has been set already to reduce code size. pub(crate) fn set_current(thread: Thread) { + // Using `unwrap` here can add ~3kB to the binary size. We have complete + // control over where this is called, so just abort if there is a bug. CURRENT.with(|current| match current.set(thread) { Ok(()) => {} Err(_) => rtabort!("should only be set once"), |