1 files changed, 115 insertions, 0 deletions

diff --git a/OpenSim/Data/MySQL/MySQLFramework.cs b/OpenSim/Data/MySQL/MySQLFramework.cs
new file mode 100644
index 0000000..f2b31c4
--- /dev/null
+++ b/OpenSim/Data/MySQL/MySQLFramework.cs
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Data;
+using OpenMetaverse;
+using OpenSim.Framework;
+using MySql.Data.MySqlClient;
+
+namespace OpenSim.Data.MySQL
+{
+    /// <summary>
+    /// A database interface class to a user profile storage system
+    /// </summary>
+    public class MySqlFramework
+    {
+        protected MySqlConnection m_Connection;
+
+        protected MySqlFramework(string connectionString)
+        {
+            m_Connection = new MySqlConnection(connectionString);
+
+            m_Connection.Open();
+        }
+
+        //////////////////////////////////////////////////////////////
+        //
+        // All non queries are funneled through one connection
+        // to increase performance a little
+        //
+        protected int ExecuteNonQuery(MySqlCommand cmd)
+        {
+            lock (m_Connection)
+            {
+                cmd.Connection = m_Connection;
+
+                bool errorSeen = false;
+
+                while (true)
+                {
+                    try
+                    {
+                        return cmd.ExecuteNonQuery();
+                    }
+                    catch (MySqlException e)
+                    {
+                        if (errorSeen)
+                            throw;
+
+                        // This is "Server has gone away" and "Server lost"
+                        //
+                        if (e.Number == 2006 || e.Number == 2013)
+                        {
+                            errorSeen = true;
+
+                            m_Connection.Close();
+                            MySqlConnection newConnection = (MySqlConnection)
+                                    ((ICloneable)m_Connection).Clone();
+                            m_Connection.Dispose();
+                            m_Connection = newConnection;
+                            m_Connection.Open();
+
+                            cmd.Connection = m_Connection;
+                        }
+                    }
+                }
+            }
+        }
+        
+        protected IDataReader ExecuteReader(MySqlCommand cmd)
+        {
+            MySqlConnection newConnection = (MySqlConnection)
+                    ((ICloneable)m_Connection).Clone();
+            
+            newConnection.Open();
+
+            cmd.Connection = newConnection;
+
+            return cmd.ExecuteReader();
+        }
+
+        protected void CloseReaderCommand(MySqlCommand cmd)
+        {
+            cmd.Connection.Close();
+            cmd.Connection.Dispose();
+            cmd.Dispose();
+        }
+    }
+}