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preserve both cancellation strategies

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This commit is contained in:
Aleksey Kladov 2019-01-11 10:13:38 +03:00
parent f07643d232
commit 61e1d69fb5
3 changed files with 110 additions and 109 deletions
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13
tests/parallel/setup.rs
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@ -143,21 +143,14 @@ fn sum(db: &impl ParDatabase, key: &'static str) -> usize {
match db.knobs().sum_wait_for_cancellation.get() {
CancelationFlag::Down => (),
CancelationFlag::SpecialValue => {
flag => {
log::debug!("waiting for cancellation");
while !db.salsa_runtime().is_current_revision_canceled() {
std::thread::yield_now();
}
log::debug!("observed cancelation");
}
CancelationFlag::Panic => {
log::debug!("waiting for cancellation");
loop {
db.salsa_runtime().if_current_revision_is_canceled(|| {
log::debug!("observed cancelation");
Canceled::throw()
});
std::thread::yield_now();
if flag == CancelationFlag::Panic {
Canceled::throw();
}
}
}