diff options
Diffstat (limited to 'src/mongo/db/db_raii.h')
| -rw-r--r-- | src/mongo/db/db_raii.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/mongo/db/db_raii.h b/src/mongo/db/db_raii.h index c20968be550..63d8524d637 100644 --- a/src/mongo/db/db_raii.h +++ b/src/mongo/db/db_raii.h @@ -105,9 +105,28 @@ public: } private: + // If this field is set, the reader will not take the ParallelBatchWriterMode lock and conflict + // with secondary batch application. This stays in scope with the _autoColl so that locks are + // taken and released in the right order. + boost::optional<ShouldNotConflictWithSecondaryBatchApplicationBlock> + _shouldNotConflictWithSecondaryBatchApplicationBlock; + // This field is optional, because the code to wait for majority committed snapshot needs to // release locks in order to block waiting boost::optional<AutoGetCollection> _autoColl; + + // Returns true if we should read from the local snapshot (last applied timestamp) on a + // secondary. + bool _shouldDoSecondaryLocalSnapshotRead(OperationContext* opCtx, + const NamespaceString& nss, + repl::ReadConcernLevel readConcernLevel) const; + + // Returns true if the minSnapshot causes conflicting catalog changes for the provided read + // concern level or lastAppliedTimestamp. + bool _conflictingCatalogChanges(OperationContext* opCtx, + repl::ReadConcernLevel readConcernLevel, + boost::optional<Timestamp> minSnapshot, + boost::optional<Timestamp> lastAppliedTimestamp) const; }; /** |