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test(persistence): immutable_reads_under_reclamation 遇到 Busy 时重试回收 #441

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jiangkoumo wants to merge 1 commit into from
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test(persistence): immutable_reads_under_reclamation 遇到 Busy 时重试回收 #441

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14 changes: 12 additions & 2 deletions core/crates/layerfs-persistence/tests/immutable_reads_under_reclamation.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -159,9 +159,19 @@ fn immutable_reads_are_unchanged_while_free_pages_are_reclaimed() {
let done = AtomicBool::new(false);
let (jobs, rounds, reclaimed) = std::thread::scope(|scope| {
let reclaim = scope.spawn(|| {
let (mut jobs, mut reclaimed) = (0, 0);
let (mut jobs, mut reclaimed, mut busy) = (0, 0, 0);
while jobs < JOBS {
let job = writer.reclaim_space(1).unwrap();
// The Store binds no busy handler, so a job that meets the
// concurrent reader's snapshot is refused `Busy` without
// effect; the documented caller response is a later job.
let job = match writer.reclaim_space(1) {
Err(PersistenceError::Busy) if busy < JOBS => {
busy += 1;
std::thread::yield_now();
continue;
}
other => other.unwrap(),
};
jobs += 1;
reclaimed += job.reclaimed_pages;
if job.remaining_free_pages == 0 {
Expand Down