feat(Cmake/Database): separate database lib from common (#5334)

* feat(Core/Database): separate databse lib from common

* 1

src/server/database/Database/QueryHolder.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016+     AzerothCore <www.azerothcore.org>
+ * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ */
+
+#ifndef _QUERYHOLDER_H
+#define _QUERYHOLDER_H
+
+#include <ace/Future.h>
+
+class SQLQueryHolder
+{
+    friend class SQLQueryHolderTask;
+private:
+    typedef std::pair<SQLElementData, SQLResultSetUnion> SQLResultPair;
+    std::vector<SQLResultPair> m_queries;
+public:
+    SQLQueryHolder() = default;
+    ~SQLQueryHolder();
+    bool SetQuery(size_t index, const char* sql);
+    bool SetPQuery(size_t index, const char* format, ...) ATTR_PRINTF(3, 4);
+    bool SetPreparedQuery(size_t index, PreparedStatement* stmt);
+    void SetSize(size_t size);
+    QueryResult GetResult(size_t index);
+    PreparedQueryResult GetPreparedResult(size_t index);
+    void SetResult(size_t index, ResultSet* result);
+    void SetPreparedResult(size_t index, PreparedResultSet* result);
+};
+
+typedef ACE_Future<SQLQueryHolder*> QueryResultHolderFuture;
+
+class SQLQueryHolderTask : public SQLOperation
+{
+private:
+    SQLQueryHolder* m_holder;
+    QueryResultHolderFuture m_result;
+
+public:
+    SQLQueryHolderTask(SQLQueryHolder* holder, QueryResultHolderFuture res)
+        : m_holder(holder), m_result(res) { };
+    bool Execute() override;
+};
+
+#endif