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restore SIGNAL_WORK_THREAD_MODE

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This commit is contained in:
Sijmen Woutersen 2022-11-12 10:56:49 +01:00
parent 6e1120e17e
commit e70ae71ecc
1 changed files with 6 additions and 1 deletions
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7
embassy-executor/src/arch/riscv32.rs
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@ -54,7 +54,12 @@ impl Executor {
loop {
unsafe {
self.inner.poll();
core::arch::asm!("wfi");
// we do not care about race conditions between the load and store operations, interrupts
// will only set this value to true.
// if there is work to do, loop back to polling
if !SIGNAL_WORK_THREAD_MODE.fetch_and(false, Ordering::SeqCst) {
core::arch::asm!("wfi");
}
}
}
}