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Auto merge of #11797 - Ms2ger:workqueue-mut-atomic, r=nox

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Use *const AtomicUsize rather than *mut AtomicUsize in WorkQueue.

Atomics use internal mutability, so this *mut is at best confusing.

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This commit is contained in:
bors-servo 2016-06-20 06:56:13 -05:00 • committed by GitHub
commit a5778fb5da
1 changed files with 4 additions and 4 deletions
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8
components/util/workqueue.rs
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@ -35,7 +35,7 @@ pub struct WorkUnit<QueueData, WorkData: Send> {
/// Messages from the supervisor to the worker.
enum WorkerMsg<QueueData: 'static, WorkData: 'static + Send> {
/// Tells the worker to start work.
Start(Worker<WorkUnit<QueueData, WorkData>>, *mut AtomicUsize, *const QueueData),
Start(Worker<WorkUnit<QueueData, WorkData>>, *const AtomicUsize, *const QueueData),
/// Tells the worker to stop. It can be restarted again with a `WorkerMsg::Start`.
Stop,
/// Tells the worker to measure the heap size of its TLS using the supplied function.
@ -199,7 +199,7 @@ impl<QueueData: Sync, WorkData: Send> WorkerThread<QueueData, WorkData> {
/// A handle to the work queue that individual work units have.
pub struct WorkerProxy<'a, QueueData: 'a, WorkData: 'a + Send> {
worker: &'a mut Worker<WorkUnit<QueueData, WorkData>>,
ref_count: *mut AtomicUsize,
ref_count: *const AtomicUsize,
queue_data: &'a QueueData,
worker_index: u8,
}
@ -307,10 +307,10 @@ impl<QueueData: Sync, WorkData: Send> WorkQueue<QueueData, WorkData> {
/// Synchronously runs all the enqueued tasks and waits for them to complete.
pub fn run(&mut self, data: &QueueData) {
// Tell the workers to start.
let mut work_count = AtomicUsize::new(self.work_count);
let work_count = AtomicUsize::new(self.work_count);
for worker in &mut self.workers {
worker.chan.send(WorkerMsg::Start(worker.deque.take().unwrap(),
&mut work_count,
&work_count,
data)).unwrap()
}