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// Sonic
//
// Fast, lightweight and schema-less search backend
// Copyright: 2019, Valerian Saliou <valerian@valeriansaliou.name>
// Copyright: 2026, Rémi Bardon <remi@remibardon.name>
// License: Mozilla Public License v2.0 (MPL v2.0)
use crate::store::StoreItemPart;
impl super::Executor {
pub fn flushb(&self, collection: StoreItemPart, bucket: StoreItemPart) -> Result<u32, ()> {
// Important: acquire database access read lock, and reference it in context. This \
// prevents the database from being erased while using it in this block.
// Notice: acquire FST lock in write mode, as we will erase it.
let _kv_read_guard = self.kv_pool.lock_read_access();
let _fst_write_guard = self.fst_pool.lock_write_access();
if let Ok(kv_store) = self.kv_pool.acquire(false, collection, None, |_| {}) {
let Some(kv_store) = kv_store else {
tracing::debug!(
"collection store does not exist, consider {bucket:?} from {collection:?} already erased"
);
return Ok(0);
};
// Important: acquire bucket store write lock
executor_kv_lock_write!(kv_store);
// Store exists, proceed erasure.
tracing::debug!("collection store exists, erasing: {bucket} from {collection}");
let kv_action = kv_store.access_read_write(bucket);
// Notice: we cannot use the provided KV bucket erasure helper there, as \
// erasing a bucket requires a database lock, which would incur a dead-lock, \
// thus we need to perform the erasure from there.
if let Ok(erase_count) = kv_action.batch_erase_bucket() {
if self.fst_pool.erase(collection, Some(bucket)).is_ok() {
tracing::debug!("done with bucket erasure");
return Ok(erase_count);
}
}
}
Err(())
}
}