SERVER-38187 Ability to create temporary RecordStore without a collection

1 files changed, 8 insertions, 0 deletions

diff --git a/src/mongo/db/storage/storage_engine.h b/src/mongo/db/storage/storage_engine.h
index 795ee9f6397..456972b0997 100644
--- a/src/mongo/db/storage/storage_engine.h
+++ b/src/mongo/db/storage/storage_engine.h
@@ -45,6 +45,7 @@ namespace mongo {
 class DatabaseCatalogEntry;
 class JournalListener;
 class OperationContext;
+class RecordStore;
 class RecoveryUnit;
 class SnapshotManager;
 struct StorageGlobalParams;
@@ -287,6 +288,13 @@ public:
     virtual Status repairRecordStore(OperationContext* opCtx, const std::string& ns) = 0;
 
     /**
+     * Creates a temporary RecordStore on the storage engine. This record store should be dropped by
+     * the caller when done being used. The storage engine will drop any remaining temporary record
+     * stores on startup.
+     */
+    virtual std::unique_ptr<RecordStore> makeTemporaryRecordStore(OperationContext* opCtx) = 0;
+
+    /**
      * This method will be called before there is a clean shutdown.  Storage engines should
      * override this method if they have clean-up to do that is different from unclean shutdown.
      * MongoDB will not call into the storage subsystem after calling this function.