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garage_db: refactor transactions and add on_commit mechanism

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This commit is contained in:
Alex Auvolat
2023-09-21 15:32:25 +02:00
parent fd7d8fec59
commit f97168f805
14 changed files with 86 additions and 84 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/table/data.rs
+8 -8
View File
@@ -203,14 +203,14 @@ impl<F: TableSchema, R: TableReplication> TableData<F, R> {
) -> Result<Option<F::E>, Error> {
let tree_key = self.tree_key(partition_key, sort_key);
let changed = self.store.db().transaction(|mut tx| {
let changed = self.store.db().transaction(|tx| {
let (old_entry, old_bytes, new_entry) = match tx.get(&self.store, &tree_key)? {
Some(old_bytes) => {
let old_entry = self.decode_entry(&old_bytes).map_err(db::TxError::Abort)?;
let new_entry = update_fn(&mut tx, Some(old_entry.clone()))?;
let new_entry = update_fn(tx, Some(old_entry.clone()))?;
(Some(old_entry), Some(old_bytes), new_entry)
}
None => (None, None, update_fn(&mut tx, None)?),
None => (None, None, update_fn(tx, None)?),
};
// Changed can be true in two scenarios
@@ -233,7 +233,7 @@ impl<F: TableSchema, R: TableReplication> TableData<F, R> {
tx.insert(&self.store, &tree_key, new_bytes)?;
self.instance
.updated(&mut tx, old_entry.as_ref(), Some(&new_entry))?;
.updated(tx, old_entry.as_ref(), Some(&new_entry))?;
Ok(Some((new_entry, new_bytes_hash)))
} else {
@@ -270,14 +270,14 @@ impl<F: TableSchema, R: TableReplication> TableData<F, R> {
let removed = self
.store
.db()
.transaction(|mut tx| match tx.get(&self.store, k)? {
.transaction(|tx| match tx.get(&self.store, k)? {
Some(cur_v) if cur_v == v => {
let old_entry = self.decode_entry(v).map_err(db::TxError::Abort)?;
tx.remove(&self.store, k)?;
tx.insert(&self.merkle_todo, k, vec![])?;
self.instance.updated(&mut tx, Some(&old_entry), None)?;
self.instance.updated(tx, Some(&old_entry), None)?;
Ok(true)
}
_ => Ok(false),
@@ -298,14 +298,14 @@ impl<F: TableSchema, R: TableReplication> TableData<F, R> {
let removed = self
.store
.db()
.transaction(|mut tx| match tx.get(&self.store, k)? {
.transaction(|tx| match tx.get(&self.store, k)? {
Some(cur_v) if blake2sum(&cur_v[..]) == vhash => {
let old_entry = self.decode_entry(&cur_v[..]).map_err(db::TxError::Abort)?;
tx.remove(&self.store, k)?;
tx.insert(&self.merkle_todo, k, vec![])?;
self.instance.updated(&mut tx, Some(&old_entry), None)?;
self.instance.updated(tx, Some(&old_entry), None)?;
Ok(true)
}
_ => Ok(false),
src/table/merkle.rs
+2 -2
View File
@@ -108,9 +108,9 @@ impl<F: TableSchema, R: TableReplication> MerkleUpdater<F, R> {
self.data
.merkle_tree
.db()
.transaction(|mut tx| self.update_item_rec(&mut tx, k, &khash, &key, new_vhash))?;
.transaction(|tx| self.update_item_rec(tx, k, &khash, &key, new_vhash))?;
let deleted = self.data.merkle_todo.db().transaction(|mut tx| {
let deleted = self.data.merkle_todo.db().transaction(|tx| {
let remove = matches!(tx.get(&self.data.merkle_todo, k)?, Some(ov) if ov == vhash_by);
if remove {
tx.remove(&self.data.merkle_todo, k)?;
src/table/queue.rs
+1 -1
View File
@@ -53,7 +53,7 @@ impl<F: TableSchema, R: TableReplication> Worker for InsertQueueWorker<F, R> {
self.0.insert_many(values).await?;
self.0.data.insert_queue.db().transaction(|mut tx| {
self.0.data.insert_queue.db().transaction(|tx| {
for (k, v) in kv_pairs.iter() {
if let Some(v2) = tx.get(&self.0.data.insert_queue, k)? {
if &v2 == v {