wallet: Introduce database handle wrapper

Abstract database handle from explicit strFilename into
CWalletDBWrapper.

Also move CWallet::Backup to db.cpp - as it deals with representation
details this is a database specific operation.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h
index b94f341b2e..c0135a6292 100644
--- a/src/wallet/walletdb.h
+++ b/src/wallet/walletdb.h
@@ -118,11 +118,15 @@ public:
     }
 };
 
-/** Access to the wallet database */
+/** Access to the wallet database.
+ * This should really be named CWalletDBBatch, as it represents a single transaction at the
+ * database. It will be committed when the object goes out of scope.
+ * Optionally (on by default) it will flush to disk as well.
+ */
 class CWalletDB : public CDB
 {
 public:
-    CWalletDB(const std::string& strFilename, const char* pszMode = "r+", bool _fFlushOnClose = true) : CDB(strFilename, pszMode, _fFlushOnClose)
+    CWalletDB(CWalletDBWrapper& dbw, const char* pszMode = "r+", bool _fFlushOnClose = true) : CDB(dbw, pszMode, _fFlushOnClose)
     {
     }