From 5e4d6cab00cb29cd088ab7b62ab13aff103b64cb Mon Sep 17 00:00:00 2001
From: onefang
Date: Sun, 19 May 2019 21:24:15 +1000
Subject: Dump OpenSim 0.9.0.1 into it's own branch.

---
 OpenSim/Data/MySQL/MySQLFramework.cs | 60 ++++++++++++++++++++++++++++++++----
 1 file changed, 54 insertions(+), 6 deletions(-)

(limited to 'OpenSim/Data/MySQL/MySQLFramework.cs')

diff --git a/OpenSim/Data/MySQL/MySQLFramework.cs b/OpenSim/Data/MySQL/MySQLFramework.cs
index 5820a90..98106f0 100644
--- a/OpenSim/Data/MySQL/MySQLFramework.cs
+++ b/OpenSim/Data/MySQL/MySQLFramework.cs
@@ -36,7 +36,7 @@ using MySql.Data.MySqlClient;
 namespace OpenSim.Data.MySQL
 {
     /// <summary>
-    /// A database interface class to a user profile storage system
+    /// Common code for a number of database modules
     /// </summary>
     public class MySqlFramework
     {
@@ -44,30 +44,78 @@ namespace OpenSim.Data.MySQL
                 log4net.LogManager.GetLogger(
                 System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
 
-        protected string m_connectionString;
+        protected string m_connectionString = String.Empty;
+        protected MySqlTransaction m_trans = null;
 
+        // Constructor using a connection string. Instances constructed
+        // this way will open a new connection for each call.
         protected MySqlFramework(string connectionString)
         {
             m_connectionString = connectionString;
         }
 
+        // Constructor using a connection object. Instances constructed
+        // this way will use the connection object and never create
+        // new connections.
+        protected MySqlFramework(MySqlTransaction trans)
+        {
+            m_trans = trans;
+        }
+
+        //////////////////////////////////////////////////////////////
+        //
+        // All non queries are funneled through one connection
+        // to increase performance a little
+        //
         protected int ExecuteNonQuery(MySqlCommand cmd)
         {
-            using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
+            if (m_trans == null)
+            {
+                using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
+                {
+                    dbcon.Open();
+                    int ret = ExecuteNonQueryWithConnection(cmd, dbcon);
+                    dbcon.Close();
+                    return ret;
+                }
+            }
+            else
+            {
+                return ExecuteNonQueryWithTransaction(cmd, m_trans);
+            }
+        }
+
+        private int ExecuteNonQueryWithTransaction(MySqlCommand cmd, MySqlTransaction trans)
+        {
+            cmd.Transaction = trans;
+            return ExecuteNonQueryWithConnection(cmd, trans.Connection);
+        }
+
+        private int ExecuteNonQueryWithConnection(MySqlCommand cmd, MySqlConnection dbcon)
+        {
+            try
             {
-                dbcon.Open();
                 cmd.Connection = dbcon;
 
                 try
                 {
-                    return cmd.ExecuteNonQuery();
+                    int ret = cmd.ExecuteNonQuery();
+                    cmd.Connection = null;
+                    return ret;
                 }
                 catch (Exception e)
                 {
                     m_log.Error(e.Message, e);
+                    m_log.Error(Environment.StackTrace.ToString());
+                    cmd.Connection = null;
                     return 0;
                 }
             }
+            catch (Exception e)
+            {
+                m_log.Error(e.Message, e);
+                return 0;
+            }
         }
     }
-}
\ No newline at end of file
+}
-- 
cgit v1.1