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-rw-r--r--src/db/lib.rs8
-rw-r--r--src/db/lmdb_adapter.rs10
-rw-r--r--src/db/sqlite_adapter.rs32
3 files changed, 17 insertions, 33 deletions
diff --git a/src/db/lib.rs b/src/db/lib.rs
index d6057505..3485745a 100644
--- a/src/db/lib.rs
+++ b/src/db/lib.rs
@@ -274,12 +274,12 @@ impl<'a> Transaction<'a> {
tree: &Tree,
key: T,
value: U,
- ) -> TxOpResult<Option<Value>> {
+ ) -> TxOpResult<()> {
self.tx.insert(tree.1, key.as_ref(), value.as_ref())
}
/// Returns the old value if there was one
#[inline]
- pub fn remove<T: AsRef<[u8]>>(&mut self, tree: &Tree, key: T) -> TxOpResult<Option<Value>> {
+ pub fn remove<T: AsRef<[u8]>>(&mut self, tree: &Tree, key: T) -> TxOpResult<()> {
self.tx.remove(tree.1, key.as_ref())
}
/// Clears all values in a tree
@@ -362,8 +362,8 @@ pub(crate) trait ITx {
fn get(&self, tree: usize, key: &[u8]) -> TxOpResult<Option<Value>>;
fn len(&self, tree: usize) -> TxOpResult<usize>;
- fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<Option<Value>>;
- fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<Option<Value>>;
+ fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<()>;
+ fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<()>;
fn clear(&mut self, tree: usize) -> TxOpResult<()>;
fn iter(&self, tree: usize) -> TxOpResult<TxValueIter<'_>>;
diff --git a/src/db/lmdb_adapter.rs b/src/db/lmdb_adapter.rs
index 436a67fa..de4c3910 100644
--- a/src/db/lmdb_adapter.rs
+++ b/src/db/lmdb_adapter.rs
@@ -252,17 +252,15 @@ impl<'a> ITx for LmdbTx<'a> {
Ok(tree.len(&self.tx)? as usize)
}
- fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<Option<Value>> {
+ fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<()> {
let tree = *self.get_tree(tree)?;
- let old_val = tree.get(&self.tx, key)?.map(Vec::from);
tree.put(&mut self.tx, key, value)?;
- Ok(old_val)
+ Ok(())
}
- fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<Option<Value>> {
+ fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<()> {
let tree = *self.get_tree(tree)?;
- let old_val = tree.get(&self.tx, key)?.map(Vec::from);
tree.delete(&mut self.tx, key)?;
- Ok(old_val)
+ Ok(())
}
fn clear(&mut self, tree: usize) -> TxOpResult<()> {
let tree = *self.get_tree(tree)?;
diff --git a/src/db/sqlite_adapter.rs b/src/db/sqlite_adapter.rs
index 5a142117..9c9a668d 100644
--- a/src/db/sqlite_adapter.rs
+++ b/src/db/sqlite_adapter.rs
@@ -192,7 +192,7 @@ impl IDb for SqliteDb {
let db = self.db.get()?;
let lock = self.write_lock.lock();
- let n = db.execute(&format!("DELETE FROM {} WHERE k = ?1", tree), params![key])?;
+ db.execute(&format!("DELETE FROM {} WHERE k = ?1", tree), params![key])?;
drop(lock);
Ok(())
@@ -336,31 +336,17 @@ impl<'a> ITx for SqliteTx<'a> {
}
}
- fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<Option<Value>> {
+ fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> TxOpResult<()> {
let tree = self.get_tree(tree)?;
- let old_val = self.internal_get(tree, key)?;
-
- let sql = match &old_val {
- Some(_) => format!("UPDATE {} SET v = ?2 WHERE k = ?1", tree),
- None => format!("INSERT INTO {} (k, v) VALUES (?1, ?2)", tree),
- };
- let n = self.tx.execute(&sql, params![key, value])?;
- assert_eq!(n, 1);
-
- Ok(old_val)
+ let sql = format!("INSERT OR REPLACE INTO {} (k, v) VALUES (?1, ?2)", tree);
+ self.tx.execute(&sql, params![key, value])?;
+ Ok(())
}
- fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<Option<Value>> {
+ fn remove(&mut self, tree: usize, key: &[u8]) -> TxOpResult<()> {
let tree = self.get_tree(tree)?;
- let old_val = self.internal_get(tree, key)?;
-
- if old_val.is_some() {
- let n = self
- .tx
- .execute(&format!("DELETE FROM {} WHERE k = ?1", tree), params![key])?;
- assert_eq!(n, 1);
- }
-
- Ok(old_val)
+ self.tx
+ .execute(&format!("DELETE FROM {} WHERE k = ?1", tree), params![key])?;
+ Ok(())
}
fn clear(&mut self, tree: usize) -> TxOpResult<()> {
let tree = self.get_tree(tree)?;