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solana-with-rpc-optimizations
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(Ledger Store) Add comment blocks for six pub functions in blockstore.rs (#22476)

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Yueh-Hsuan Chiang 2022-01-29 01:25:07 -05:00 committed by GitHub
parent fde5b77f6e
commit aaae5b3ba6
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1 changed files with 18 additions and 1 deletions
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19
ledger/src/blockstore.rs
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@ -516,10 +516,19 @@ impl Blockstore {
}
}
/// Whether to disable compaction in [`compact_storage`], which is used
/// by the ledger cleanup service and [`backup_and_clear_blockstore`].
///
/// Note that this setting is not related to the RocksDB's background
/// compaction.
///
/// To disable RocksDB's background compaction, open the Blockstore
/// with AccessType::PrimaryOnlyForMaintenance.
pub fn set_no_compaction(&mut self, no_compaction: bool) {
self.no_compaction = no_compaction;
}
/// Deletes the blockstore at the specified path.
pub fn destroy(ledger_path: &Path) -> Result<()> {
// Database::destroy() fails if the path doesn't exist
fs::create_dir_all(ledger_path)?;
@ -527,10 +536,12 @@ impl Blockstore {
Database::destroy(&blockstore_path)
}
/// Returns the SlotMeta of the specified slot.
pub fn meta(&self, slot: Slot) -> Result<Option<SlotMeta>> {
self.meta_cf.get(slot)
}
/// Returns true if the specified slot is full.
pub fn is_full(&self, slot: Slot) -> bool {
if let Ok(Some(meta)) = self.meta_cf.get(slot) {
return meta.is_full();
@ -542,11 +553,17 @@ impl Blockstore {
self.erasure_meta_cf.get(erasure_set.store_key())
}
/// Check whether the specified slot is an orphan slot which does not
/// have a parent slot.
///
/// Returns true if the specified slot does not have a parent slot.
/// For other return values, it means either the slot is not in the
/// blockstore or the slot isn't an orphan slot.
pub fn orphan(&self, slot: Slot) -> Result<Option<bool>> {
self.orphans_cf.get(slot)
}
// Get max root or 0 if it doesn't exist
/// Returns the max root or 0 if it does not exist.
pub fn max_root(&self) -> Slot {
self.db
.iter::<cf::Root>(IteratorMode::End)