62e8ea2732
This is a direct extract from my abandoned PR for a lint (#7546), along with some rather clumsy modifications (only on `components/script/dom/mod.rs` and `components/style/lib.rs`), because I had to sort some of the files again to make peace with tidy, which hasn't been educated about sorting yet! Source-Repo: https://github.com/servo/servo Source-Revision: a7208869f2903e36f9b2f540b55b50283d7df466
27 lines
781 B
Rust
27 lines
781 B
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use std::cell::RefCell;
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use std::rc::Rc;
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use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
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static NEXT_TID: AtomicUsize = ATOMIC_USIZE_INIT;
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thread_local!(static TASK_LOCAL_TID: Rc<RefCell<Option<usize>>> = Rc::new(RefCell::new(None)));
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/// Every task gets one, that's unique.
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pub fn tid() -> usize {
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TASK_LOCAL_TID.with(|ref k| {
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let ret =
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match *k.borrow() {
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None => NEXT_TID.fetch_add(1, Ordering::SeqCst),
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Some(x) => x,
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};
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*k.borrow_mut() = Some(ret);
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ret
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})
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}
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