update ceph source to reef 18.1.2

[ceph.git] / ceph / src / rocksdb / utilities / cassandra / cassandra_options.h

diff --git a/ceph/src/rocksdb/utilities/cassandra/cassandra_options.h b/ceph/src/rocksdb/utilities/cassandra/cassandra_options.h
new file mode 100644 (file)
index 0000000..efa73a3
--- /dev/null
+++ b/ceph/src/rocksdb/utilities/cassandra/cassandra_options.h
@@ -0,0 +1,43 @@
+// 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).
+
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <string>
+
+#include "rocksdb/rocksdb_namespace.h"
+
+namespace ROCKSDB_NAMESPACE {
+class ObjectLibrary;
+namespace cassandra {
+struct CassandraOptions {
+  static const char* kName() { return "CassandraOptions"; }
+  CassandraOptions(int32_t _gc_grace_period_in_seconds, size_t _operands_limit,
+                   bool _purge_ttl_on_expiration = false)
+      : operands_limit(_operands_limit),
+        gc_grace_period_in_seconds(_gc_grace_period_in_seconds),
+        purge_ttl_on_expiration(_purge_ttl_on_expiration) {}
+  // Limit on the number of merge operands.
+  size_t operands_limit;
+
+  // How long (in seconds) tombstoned data remains before it is purged
+  int32_t gc_grace_period_in_seconds;
+
+  // If is set to true, expired data will be directly purged.
+  // Otherwise expired data will be converted tombstones first,
+  // then be eventually removed after gc grace period. This value should
+  // only true if all writes have same ttl setting, otherwise it could bring old
+  // data back.
+  bool purge_ttl_on_expiration;
+};
+#ifndef ROCKSDB_LITE
+extern "C" {
+int RegisterCassandraObjects(ObjectLibrary& library, const std::string& arg);
+}  // extern "C"
+#endif  // ROCKSDB_LITE
+}  // namespace cassandra
+}  // namespace ROCKSDB_NAMESPACE