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| author | bjorn3 <bjorn3@users.noreply.github.com> | 2021-09-16 14:55:15 +0200 |
|---|---|---|
| committer | bjorn3 <bjorn3@users.noreply.github.com> | 2021-09-16 14:55:15 +0200 |
| commit | a8bb3bcd38502e63c3b729ca215fdb18a0c70e77 (patch) | |
| tree | 35d9b681b7480682073bb61030e5c649ec696d5e | |
| parent | f78cd44602fd8360657b9a205061ca7bf0592140 (diff) | |
| download | rust-a8bb3bcd38502e63c3b729ca215fdb18a0c70e77.tar.gz rust-a8bb3bcd38502e63c3b729ca215fdb18a0c70e77.zip | |
Use const {} for the THREAD_INFO thread local
This makes accesses to it cheaper
| -rw-r--r-- | library/std/src/sys_common/thread_info.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/library/std/src/sys_common/thread_info.rs b/library/std/src/sys_common/thread_info.rs index a0dbdcd979a..1d2e2dd4361 100644 --- a/library/std/src/sys_common/thread_info.rs +++ b/library/std/src/sys_common/thread_info.rs @@ -1,4 +1,5 @@ #![allow(dead_code)] // stack_guard isn't used right now on all platforms +#![allow(unused_unsafe)] // thread_local with `const {}` triggers this liny use crate::cell::RefCell; use crate::sys::thread::guard::Guard; @@ -9,7 +10,7 @@ struct ThreadInfo { thread: Thread, } -thread_local! { static THREAD_INFO: RefCell<Option<ThreadInfo>> = RefCell::new(None) } +thread_local! { static THREAD_INFO: RefCell<Option<ThreadInfo>> = const { RefCell::new(None) } } impl ThreadInfo { fn with<R, F>(f: F) -> Option<R> |