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Added a way to obtain an indication of the current task state #19

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Merged
merged 4 commits into from
Mar 4, 2022
Merged

Added a way to obtain an indication of the current task state #19

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522a78b
Added a way to obtain an indication of the current task state
VictorKoenders Jan 10, 2022
a382c33
Bumped MSRV to 1.40 for the #[non_exhaustive] attribute
VictorKoenders Jan 22, 2022
f2391a1
Replaced `TaskState` with a simple `is_finished()` function
VictorKoenders Mar 4, 2022
5dfe3d4
Reverted MSRV bump
VictorKoenders Mar 4, 2022
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13 changes: 13 additions & 0 deletions src/task.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -395,6 +395,19 @@ impl<T> Task<T> {
let header = ptr as *const Header;
unsafe { &*header }
}

/// Returns `true` if the current task is finished.
///
/// Note that in a multithreaded environment, this task can change finish immediately after calling this function.
pub fn is_finished(&self) -> bool {
let ptr = self.ptr.as_ptr();
let header = ptr as *const Header;

unsafe {
let state = (*header).state.load(Ordering::Acquire);
state & (CLOSED | COMPLETED) != 0
}
}
}

impl<T> Drop for Task<T> {
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