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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/rocksdb/utilities/transactions/snapshot_checker.cc | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/rocksdb/utilities/transactions/snapshot_checker.cc')
-rw-r--r-- | src/rocksdb/utilities/transactions/snapshot_checker.cc | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/transactions/snapshot_checker.cc b/src/rocksdb/utilities/transactions/snapshot_checker.cc new file mode 100644 index 000000000..9c43bef43 --- /dev/null +++ b/src/rocksdb/utilities/transactions/snapshot_checker.cc @@ -0,0 +1,49 @@ +// 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_NAMESPACE { + +#ifdef ROCKSDB_LITE +WritePreparedSnapshotChecker::WritePreparedSnapshotChecker( + WritePreparedTxnDB* /*txn_db*/) {} + +SnapshotCheckerResult WritePreparedSnapshotChecker::CheckInSnapshot( + SequenceNumber /*sequence*/, SequenceNumber /*snapshot_sequence*/) const { + // Should never be called in LITE mode. + assert(false); + return SnapshotCheckerResult::kInSnapshot; +} + +#else + +WritePreparedSnapshotChecker::WritePreparedSnapshotChecker( + WritePreparedTxnDB* txn_db) + : txn_db_(txn_db){}; + +SnapshotCheckerResult WritePreparedSnapshotChecker::CheckInSnapshot( + SequenceNumber sequence, SequenceNumber snapshot_sequence) const { + bool snapshot_released = false; + // TODO(myabandeh): set min_uncommitted + bool in_snapshot = txn_db_->IsInSnapshot( + sequence, snapshot_sequence, kMinUnCommittedSeq, &snapshot_released); + if (snapshot_released) { + return SnapshotCheckerResult::kSnapshotReleased; + } + return in_snapshot ? SnapshotCheckerResult::kInSnapshot + : SnapshotCheckerResult::kNotInSnapshot; +} + +#endif // ROCKSDB_LITE +DisableGCSnapshotChecker DisableGCSnapshotChecker::instance_; + +} // namespace ROCKSDB_NAMESPACE |