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Add comment block for commit_slot_meta_working_set in blockstore.rs (#21852)

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Yueh-Hsuan Chiang 2021-12-15 13:12:50 -08:00 committed by GitHub
parent e374fb1d60
commit 882f886450
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17
ledger/src/blockstore.rs
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@ -3360,6 +3360,23 @@ fn send_signals(
}
}
/// For each slot in the slot_meta_working_set which has any change, include
/// corresponding updates to cf::SlotMeta via the specified `write_batch`.
/// The `write_batch` will later be atomically committed to the blockstore.
///
/// Arguments:
/// - `slot_meta_working_set`: a map that maintains slot-id to its `SlotMeta`
/// mapping.
/// - `completed_slot_senders`: the units which are responsible for sending
/// signals for completed slots.
/// - `write_batch`: the write batch which includes all the updates of the
/// the current write and ensures their atomicity.
///
/// On success, the function returns an Ok result with <should_signal,
/// newly_completed_slots> pair where:
/// - `should_signal`: a boolean flag indicating whether to send signal.
/// - `newly_completed_slots`: a subset of slot_meta_working_set which are
/// newly completed.
fn commit_slot_meta_working_set(
slot_meta_working_set: &HashMap<u64, SlotMetaWorkingSetEntry>,
completed_slots_senders: &[SyncSender<Vec<u64>>],