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Use const {} for the THREAD_INFO thread local

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This makes accesses to it cheaper
This commit is contained in:
bjorn3 2021-09-16 14:55:15 +02:00
parent f78cd44602
commit a8bb3bcd38
1 changed files with 2 additions and 1 deletions
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3
library/std/src/sys_common/thread_info.rs
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@ -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>