diff options
Diffstat (limited to 'src/mongo/db/storage/storage_engine.h')
| -rw-r--r-- | src/mongo/db/storage/storage_engine.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mongo/db/storage/storage_engine.h b/src/mongo/db/storage/storage_engine.h index 72c09e125b6..edf31b874fe 100644 --- a/src/mongo/db/storage/storage_engine.h +++ b/src/mongo/db/storage/storage_engine.h @@ -473,6 +473,12 @@ public: std::shared_ptr<Ident> ident) = 0; /** + * Called when the checkpoint thread instructs the storage engine to take a checkpoint. The + * underlying storage engine must take a checkpoint at this point. + */ + virtual void checkpoint() = 0; + + /** * Recovers the storage engine state to the last stable timestamp. "Stable" in this case * refers to a timestamp that is guaranteed to never be rolled back. The stable timestamp * used should be one provided by StorageEngine::setStableTimestamp(). @@ -517,6 +523,11 @@ public: virtual void setStableTimestamp(Timestamp stableTimestamp, bool force = false) = 0; /** + * Returns the stable timestamp. + */ + virtual Timestamp getStableTimestamp() const = 0; + + /** * Tells the storage engine the timestamp of the data at startup. This is necessary because * timestamps are not persisted in the storage layer. */ |