1 files changed, 103 insertions, 0 deletions
diff --git a/ndb/src/old_files/client/odbc/handles/HandleRoot.hpp b/ndb/src/old_files/client/odbc/handles/HandleRoot.hpp
new file mode 100644
index 00000000000..08a22b3e400
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+++ b/ndb/src/old_files/client/odbc/handles/HandleRoot.hpp
@@ -0,0 +1,103 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifndef ODBC_HANDLES_HandleRoot_hpp
+#define ODBC_HANDLES_HandleRoot_hpp
+
+#include <list>
+#include <map>
+#include <common/common.hpp>
+#include "HandleBase.hpp"
+
+class HandleEnv;
+class HandleDbc;
+class HandleStmt;
+class HandleDesc;
+class PoolNdb;
+
+/**
+ * @class HandleRoot
+ * @brief The singleton root handle.
+ *
+ * This class is the level above HandleEnv.  It has a single
+ * instance.  The instance is the root node of dynamically
+ * allocated handles.  The instance is also used to call methods
+ * not tied to any handle.
+ */
+class HandleRoot : public HandleBase {
+protected:
+    HandleRoot();
+    ~HandleRoot();
+public:
+    static HandleRoot* instance();
+    HandleRoot* getRoot();
+    HandleBase* getParent();
+    PoolNdb* getPoolNdb();
+    OdbcHandle odbcHandle();
+    void lockHandle();
+    void unlockHandle();
+    // check and find handle types and handles
+    SQLSMALLINT findParentType(SQLSMALLINT childType);
+    HandleBase* findBase(SQLSMALLINT handleType, void* pHandle);
+    HandleEnv* findEnv(void* pHandle);
+    HandleDbc* findDbc(void* pHandle);
+    HandleStmt* findStmt(void* pHandle);
+    HandleDesc* findDesc(void* pHandle);
+    // add or remove handle from validation list
+    void record(SQLSMALLINT handleType, HandleBase* pHandle, bool add);
+    // allocate and free handles
+    void sqlAllocEnv(Ctx& ctx, HandleEnv** ppEnv);
+    void sqlAllocHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase** ppChild);
+    void sqlFreeEnv(Ctx& ctx, HandleEnv* pEnv);
+    void sqlFreeHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase* pChild);
+    // process-level attributes
+    void sqlSetRootAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER stringLength);
+    void sqlGetRootAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength);
+private:
+    static HandleRoot* m_instance;	// the instance
+    std::list<HandleEnv*> m_listEnv;
+    PoolNdb* m_poolNdb;
+    typedef std::map<void*, SQLSMALLINT> ValidList;
+    ValidList m_validList;
+    static AttrSpec m_attrSpec[];
+    AttrArea m_attrArea;
+};
+
+inline HandleRoot*
+HandleRoot::getRoot()
+{
+    return this;
+}
+
+inline HandleBase*
+HandleRoot::getParent()
+{
+    return 0;
+}
+
+inline PoolNdb*
+HandleRoot::getPoolNdb()
+{
+    return m_poolNdb;
+}
+
+inline OdbcHandle
+HandleRoot::odbcHandle()
+{
+    return Odbc_handle_root;
+}
+
+#endif