public function getMasterPos();
/**
- * Run an anonymous function as soon as the current transaction commits or rolls back.
+ * @return bool Whether the DB is marked as read-only server-side
+ * @since 1.28
+ */
+ public function serverIsReadOnly();
+
+ /**
+ * Run a callback as soon as the current transaction commits or rolls back.
* An error is thrown if no transaction is pending. Queries in the function will run in
* AUTO-COMMIT mode unless there are begin() calls. Callbacks must commit any transactions
* that they begin.
public function onTransactionResolution( callable $callback );
/**
- * Run an anonymous function as soon as there is no transaction pending.
+ * Run a callback as soon as there is no transaction pending.
* If there is a transaction and it is rolled back, then the callback is cancelled.
* Queries in the function will run in AUTO-COMMIT mode unless there are begin() calls.
* Callbacks must commit any transactions that they begin.
public function onTransactionIdle( callable $callback );
/**
- * Run an anonymous function before the current transaction commits or now if there is none.
+ * Run a callback before the current transaction commits or now if there is none.
* If there is a transaction and it is rolled back, then the callback is cancelled.
- * Callbacks must not start nor commit any transactions.
+ * Callbacks must not start nor commit any transactions. If no transaction is active,
+ * then a transaction will wrap the callback.
*
* This is useful for updates that easily cause deadlocks if locks are held too long
* but where atomicity is strongly desired for these updates and some related updates.