HandleEnv.hpp
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上传日期:2022-05-23
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- /* 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_HandleEnv_hpp
- #define ODBC_HANDLES_HandleEnv_hpp
- #include <list>
- #include <common/common.hpp>
- #include "HandleBase.hpp"
- class HandleRoot;
- class HandleDbc;
- /**
- * @class HandleEnv
- * @brief Environment handle (SQLHENV).
- */
- class HandleEnv : public HandleBase {
- public:
- HandleEnv(HandleRoot* pRoot);
- ~HandleEnv();
- void ctor(Ctx& ctx);
- void dtor(Ctx& ctx);
- HandleRoot* getRoot();
- HandleBase* getParent();
- OdbcHandle odbcHandle();
- // allocate and free handles
- void sqlAllocConnect(Ctx& ctx, HandleDbc** ppDbc);
- void sqlAllocHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase** ppChild);
- void sqlFreeConnect(Ctx& ctx, HandleDbc* pDbc);
- void sqlFreeHandle(Ctx& ctx, SQLSMALLINT childType, HandleBase* pChild);
- // attributes
- void sqlSetEnvAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER stringLength);
- void sqlGetEnvAttr(Ctx& ctx, SQLINTEGER attribute, SQLPOINTER value, SQLINTEGER bufferLength, SQLINTEGER* stringLength);
- int getOdbcVersion(Ctx& ctx); // returns -1 if not set
- // transactions
- void sqlEndTran(Ctx& ctx, SQLSMALLINT completionType);
- void sqlTransact(Ctx& ctx, SQLUSMALLINT completionType); // odbc2.0
- private:
- HandleRoot* const m_root;
- std::list<HandleDbc*> m_listDbc;
- static AttrSpec m_attrSpec[];
- AttrArea m_attrArea;
- };
- inline HandleRoot*
- HandleEnv::getRoot()
- {
- return m_root;
- }
- inline HandleBase*
- HandleEnv::getParent()
- {
- return (HandleBase*)getRoot();
- }
- inline OdbcHandle
- HandleEnv::odbcHandle()
- {
- return Odbc_handle_env;
- }
- #endif