From bb9b9046f5749d13f83b3c2fe8a47b6d3fd6994e Mon Sep 17 00:00:00 2001
From: MikalaiR <nikolay.romanovich@narod.ru>
Date: Fri, 19 Feb 2016 15:39:36 +0000
Subject: dbx_lmdb: speed optimization

git-svn-id: http://svn.miranda-ng.org/main/trunk@16311 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
---
 plugins/Dbx_mdb/src/stdafx.h | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

(limited to 'plugins/Dbx_mdb/src/stdafx.h')

diff --git a/plugins/Dbx_mdb/src/stdafx.h b/plugins/Dbx_mdb/src/stdafx.h
index 0a777f5e5b..3f193dda47 100644
--- a/plugins/Dbx_mdb/src/stdafx.h
+++ b/plugins/Dbx_mdb/src/stdafx.h
@@ -50,9 +50,9 @@ class txn_ptr
 	MDB_txn *m_txn;
 
 public:
-	__forceinline txn_ptr(MDB_env *pEnv, bool bReadOnly = false)
+	__forceinline txn_ptr(MDB_env *pEnv)
 	{
-		mdb_txn_begin(pEnv, NULL, (bReadOnly) ? MDB_RDONLY : 0, &m_txn);
+		mdb_txn_begin(pEnv, NULL,  0, &m_txn);
 	}
 
 	__forceinline ~txn_ptr()
@@ -118,6 +118,24 @@ public:
 	__forceinline operator MDB_cursor*() const { return m_cursor; }
 };
 
+class cursor_ptr_ro
+{
+	static MDB_cursor *m_cursor;
+
+public:
+	__forceinline cursor_ptr_ro(MDB_txn *_txn, MDB_dbi _dbi)
+	{
+		if (!m_cursor)
+			mdb_cursor_open(_txn, _dbi, &m_cursor);
+	}
+
+	__forceinline ~cursor_ptr_ro()
+	{
+	}
+
+	__forceinline operator MDB_cursor*() const { return m_cursor; }
+};
+
 #define MDB_CHECK(A,B) \
 	switch(A) { \
 	case MDB_SUCCESS: break; \
-- 
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