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add comments #23275

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merged 1 commit into from
Feb 23, 2022
+8 −7
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add comments #23275

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15 changes: 8 additions & 7 deletions runtime/src/in_mem_accounts_index.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -434,9 +434,9 @@ impl<T: IndexValue> InMemAccountsIndex<T> {
Self::update_stat(count, 1);
}

// Try to update an item in the slot list the given `slot` If an item for the slot
// already exists in the list, remove the older item, add it to `reclaims`, and insert
// the new item.
/// Try to update an item in the slot list the given `slot` If an item for the slot
/// already exists in the list, remove the older item, add it to `reclaims`, and insert
/// the new item.
pub fn lock_and_update_slot_list(
current: &AccountMapEntryInner<T>,
new_value: (Slot, T),
Expand All @@ -458,8 +458,10 @@ impl<T: IndexValue> InMemAccountsIndex<T> {
current.set_dirty(true);
}

// modifies slot_list
// returns true if caller should addref
/// modifies slot_list
/// any entry at 'slot' is replaced with 'account_info'.
/// or, 'account_info' is appended to the slot list if the slot did not exist previously.
/// returns true if caller should addref
fn update_slot_list(
list: &mut SlotList<T>,
slot: Slot,
Expand Down Expand Up @@ -591,8 +593,7 @@ impl<T: IndexValue> InMemAccountsIndex<T> {
}
}

/// return tuple:
/// true if item already existed in the index
/// return true if item already existed in the index
fn upsert_on_disk(
&self,
vacant: VacantEntry<K, AccountMapEntry<T>>,
Expand Down