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(Ledger Store) Add code comments for SlotMetaWorkingSetEntry. (#22662)

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Yueh-Hsuan Chiang 2022-02-11 10:04:26 -08:00 committed by GitHub
parent 78089941ff
commit 6399647e64
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1 changed files with 11 additions and 2 deletions
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13
ledger/src/blockstore.rs
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@ -202,11 +202,18 @@ pub struct IndexMetaWorkingSetEntry {
did_insert_occur: bool, did_insert_occur: bool,
} }
/// The in-memory data structure for updating entries in the column family
/// [`cf::SlotMeta`].
pub struct SlotMetaWorkingSetEntry { pub struct SlotMetaWorkingSetEntry {
/// The dirty version of the `SlotMeta` which might not be persisted
/// to the blockstore yet.
new_slot_meta: Rc<RefCell<SlotMeta>>, new_slot_meta: Rc<RefCell<SlotMeta>>,
/// The latest version of the `SlotMeta` that was persisted in the
/// blockstore. If None, it means the current slot is new to the
/// blockstore.
old_slot_meta: Option<SlotMeta>, old_slot_meta: Option<SlotMeta>,
// True only if at least one shred for this SlotMeta was inserted since the time this /// True only if at least one shred for this SlotMeta was inserted since
// struct was created. /// this struct was created.
did_insert_occur: bool, did_insert_occur: bool,
} }
@ -246,6 +253,8 @@ pub struct BlockstoreInsertionMetrics {
} }
impl SlotMetaWorkingSetEntry { impl SlotMetaWorkingSetEntry {
/// Construct a new SlotMetaWorkingSetEntry with the specified `new_slot_meta`
/// and `old_slot_meta`. `did_insert_occur` is set to false.
fn new(new_slot_meta: Rc<RefCell<SlotMeta>>, old_slot_meta: Option<SlotMeta>) -> Self { fn new(new_slot_meta: Rc<RefCell<SlotMeta>>, old_slot_meta: Option<SlotMeta>) -> Self {
Self { Self {
new_slot_meta, new_slot_meta,