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Fix lock uses in ch5

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This commit is contained in:
Yifan Wu 2021-02-16 20:50:24 +08:00
parent 2cfb42d1f6
commit 973797f10e
3 changed files with 16 additions and 22 deletions
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8
os/src/task/processor.rs
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@ -35,8 +35,10 @@ impl Processor {
if let Some(task) = fetch_task() {
let idle_task_cx_ptr2 = self.get_idle_task_cx_ptr2();
// acquire
let next_task_cx_ptr2 = task.acquire_inner_lock().get_task_cx_ptr2();
task.acquire_inner_lock().task_status = TaskStatus::Running;
let mut task_inner = task.acquire_inner_lock();
let next_task_cx_ptr2 = task_inner.get_task_cx_ptr2();
task_inner.task_status = TaskStatus::Running;
drop(task_inner);
// release
self.inner.borrow_mut().current = Some(task);
unsafe {
@ -52,7 +54,7 @@ impl Processor {
self.inner.borrow_mut().current.take()
}
pub fn current(&self) -> Option<Arc<TaskControlBlock>> {
self.inner.borrow().current.as_ref().map(|task| task.clone())
self.inner.borrow().current.as_ref().map(|task| Arc::clone(task))
}
}