mirror of
https://github.com/servo/servo.git
synced 2025-06-13 02:44:29 +00:00
22 lines
635 B
Rust
22 lines
635 B
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
use std::sync::atomics::{AtomicUint, INIT_ATOMIC_UINT, SeqCst};
|
|
|
|
static mut next_tid: AtomicUint = INIT_ATOMIC_UINT;
|
|
|
|
local_data_key!(task_local_tid: uint)
|
|
|
|
/// Every task gets one, that's unique.
|
|
pub fn tid() -> uint {
|
|
let ret =
|
|
match task_local_tid.replace(None) {
|
|
None => unsafe { next_tid.fetch_add(1, SeqCst) },
|
|
Some(x) => x,
|
|
};
|
|
|
|
task_local_tid.replace(Some(ret));
|
|
|
|
ret
|
|
}
|