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This commit is contained in:
Joonas Koivunen
2022-10-31 20:00:19 +02:00
parent 46f0083f92
commit 8b542c4bac
1 changed files with 6 additions and 3 deletions
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9
pageserver/src/page_image_cache.rs
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@@ -24,9 +24,12 @@ static PAGE_CACHE: OnceCell<Mutex<PageImageCache>> = OnceCell::new();
const TEST_PAGE_CACHE_SIZE: usize = 50;
enum PageImageState {
Vacant, // entry is not used
Loaded(Option<Bytes>), // page is loaded or has failed
Loading(Option<Arc<Condvar>>), // page in process of loading, Condvar is created on demand when some thread need to wait load completion
// entry is not used
Vacant,
// page is loaded or has failed
Loaded(Option<Bytes>),
// page in process of loading, Condvar is created on demand when some thread need to wait load completion
Loading(Option<Arc<Condvar>>),
}
impl std::fmt::Debug for PageImageState {