119 lines
4.2 KiB
C#
119 lines
4.2 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Data;
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using OpenMetaverse;
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using OpenSim.Framework;
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using MySql.Data.MySqlClient;
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namespace OpenSim.Data.MySQL
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{
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/// <summary>
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/// A database interface class to a user profile storage system
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/// </summary>
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public class MySqlFramework
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{
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protected MySqlConnection m_Connection;
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protected MySqlFramework(string connectionString)
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{
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m_Connection = new MySqlConnection(connectionString);
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m_Connection.Open();
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}
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//////////////////////////////////////////////////////////////
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//
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// All non queries are funneled through one connection
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// to increase performance a little
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//
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protected int ExecuteNonQuery(MySqlCommand cmd)
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{
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lock (m_Connection)
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{
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cmd.Connection = m_Connection;
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bool errorSeen = false;
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while (true)
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{
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try
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{
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return cmd.ExecuteNonQuery();
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}
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catch (MySqlException e)
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{
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if (errorSeen)
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throw;
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// This is "Server has gone away" and "Server lost"
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//
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if (e.Number == 2006 || e.Number == 2013)
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{
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errorSeen = true;
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m_Connection.Close();
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MySqlConnection newConnection =
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(MySqlConnection)((ICloneable)m_Connection).Clone();
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m_Connection.Dispose();
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m_Connection = newConnection;
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m_Connection.Open();
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cmd.Connection = m_Connection;
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}
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else
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throw;
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}
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catch (Exception e)
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{
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return 0;
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}
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}
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}
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}
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protected IDataReader ExecuteReader(MySqlCommand cmd)
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{
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MySqlConnection newConnection =
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(MySqlConnection)((ICloneable)m_Connection).Clone();
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newConnection.Open();
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cmd.Connection = newConnection;
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return cmd.ExecuteReader();
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}
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protected void CloseReaderCommand(MySqlCommand cmd)
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{
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cmd.Connection.Close();
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cmd.Connection.Dispose();
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cmd.Dispose();
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}
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}
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}
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