os/ObjectMap: add get_db() accessor

This is just to let us get at the underlying KeyValueDB for DBObjectMap.
It is not really better or worse than adding accessors for things like
GetEstimatedSize() to ObjectMap.

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit 6c82e66dde715e5e4e12261655c5e7b521871453)

diff --git a/src/os/ObjectMap.h b/src/os/ObjectMap.h
index 32b423c2861681ac41b179a527cd7d9c8c7fbbe9..e88b6864c01bc05564f7b634db4f6f5825fb4846 100644 (file)
--- a/src/os/ObjectMap.h
+++ b/src/os/ObjectMap.h
@@ -162,6 +162,7 @@ public:
     return ObjectMapIterator();
   }
 
+  virtual KeyValueDB *get_db() { return nullptr; }
 
   ObjectMap(CephContext* cct) : cct(cct) {}
   virtual ~ObjectMap() {}

diff --git a/src/os/filestore/DBObjectMap.h b/src/os/filestore/DBObjectMap.h
index fb1653e489d0e4070a98f2c20a744873b1c1ab77..5076118b9ea56d27b964e4144fabf5bb90ce5345 100644 (file)
--- a/src/os/filestore/DBObjectMap.h
+++ b/src/os/filestore/DBObjectMap.h
@@ -59,6 +59,8 @@ class DBObjectMap : public ObjectMap {
 public:
   boost::scoped_ptr<KeyValueDB> db;
 
+  KeyValueDB *get_db() override { return db.get(); }
+
   /**
    * Serializes access to next_seq as well as the in_use set
    */