Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/rocksdb/utilities/transactions/lock/lock_manager.cc b/src/rocksdb/utilities/transactions/lock/lock_manager.cc
new file mode 100644
index 000000000..df16b32ad
--- /dev/null
+++ b/src/rocksdb/utilities/transactions/lock/lock_manager.cc
@@ -0,0 +1,29 @@
+// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+// This source code is licensed under both the GPLv2 (found in the
+// COPYING file in the root directory) and Apache 2.0 License
+// (found in the LICENSE.Apache file in the root directory).
+
+#ifndef ROCKSDB_LITE
+
+#include "utilities/transactions/lock/lock_manager.h"
+
+#include "utilities/transactions/lock/point/point_lock_manager.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+std::shared_ptr<LockManager> NewLockManager(PessimisticTransactionDB* db,
+                                            const TransactionDBOptions& opt) {
+  assert(db);
+  if (opt.lock_mgr_handle) {
+    // A custom lock manager was provided in options
+    auto mgr = opt.lock_mgr_handle->getLockManager();
+    return std::shared_ptr<LockManager>(opt.lock_mgr_handle, mgr);
+  } else {
+    // Use a point lock manager by default
+    return std::shared_ptr<LockManager>(new PointLockManager(db, opt));
+  }
+}
+
+}  // namespace ROCKSDB_NAMESPACE
+
+#endif  // ROCKSDB_LITE