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Diffstat (limited to 'src/rocksdb/utilities/cassandra/cassandra_options.h')
-rw-r--r-- | src/rocksdb/utilities/cassandra/cassandra_options.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/cassandra/cassandra_options.h b/src/rocksdb/utilities/cassandra/cassandra_options.h new file mode 100644 index 000000000..efa73a308 --- /dev/null +++ b/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 |