rocksdb/utilities/transactions/snapshot_checker.cc

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// 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).
#include "db/snapshot_checker.h"
#ifdef ROCKSDB_LITE
#include <assert.h>
#endif // ROCKSDB_LITE
#include "utilities/transactions/write_prepared_txn_db.h"
namespace rocksdb {
#ifdef ROCKSDB_LITE
WritePreparedSnapshotChecker::WritePreparedSnapshotChecker(
WritePreparedTxnDB* /*txn_db*/) {}
bool WritePreparedSnapshotChecker::IsInSnapshot(
SequenceNumber /*sequence*/, SequenceNumber /*snapshot_sequence*/) const {
// Should never be called in LITE mode.
assert(false);
return true;
}
#else
WritePreparedSnapshotChecker::WritePreparedSnapshotChecker(
WritePreparedTxnDB* txn_db)
: txn_db_(txn_db){};
bool WritePreparedSnapshotChecker::IsInSnapshot(
SequenceNumber sequence, SequenceNumber snapshot_sequence) const {
return txn_db_->IsInSnapshot(sequence, snapshot_sequence);
}
#endif // ROCKSDB_LITE
DisableGCSnapshotChecker DisableGCSnapshotChecker::instance_;
} // namespace rocksdb