pdns/ssqlite3.hh

   1 /*
   2  * This file is part of PowerDNS or dnsdist.
   3  * Copyright -- PowerDNS.COM B.V. and its contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * In addition, for the avoidance of any doubt, permission is granted to
  10  * link this program with OpenSSL and to (re)distribute the binaries
  11  * produced as the result of such linking.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22 #ifndef SSQLITE3_HH
  23 #define SSQLITE3_HH
  24
  25 #include <sqlite3.h>
  26 #include "pdns/backends/gsql/ssql.hh"
  27
  28 class SSQLite3 : public SSql
  29 {
  30 private:
  31   //! Pointer to the SQLite database instance.
  32   sqlite3 *m_pDB{nullptr};
  33
  34   bool m_dolog;
  35   bool m_in_transaction;
  36   static int busyHandler(void*, int);
  37 protected:
  38 public:
  39   //! Constructor.
  40   SSQLite3( const std::string & database, const std::string & journalmode, bool creat=false);
  41
  42   //! Destructor.
  43   ~SSQLite3();
  44
  45   std::unique_ptr<SSqlStatement> prepare(const string& query, int nparams) override;
  46   void execute(const string& query) override;
  47   void setLog(bool state) override;
  48
  49   void startTransaction() override;
  50   void commit() override;
  51   void rollback() override;
  52
  53   sqlite3 *db() { return this->m_pDB; };
  54
  55   bool inTransaction() { return m_in_transaction; };
  56
  57   //! Used to create an backend specific exception message.
  58   SSqlException sPerrorException( const std::string & reason ) override;
  59 };
  60
  61 #endif // SSQLITE3_HH
  62