opensim/OpenSim/Data/PGSQL/PGSQLFramework.cs

/*
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 *       derived from this software without specific prior written permission.
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 * 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
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 */

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Reflection;
using OpenMetaverse;
using OpenSim.Framework;
using Npgsql;

namespace OpenSim.Data.PGSQL
{
    /// <summary>
    /// A database interface class to a user profile storage system
    /// </summary>
    public class PGSqlFramework
    {
        private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger( System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        protected string m_connectionString;
        protected object m_dbLock = new object();

        protected PGSqlFramework(string connectionString)
        {
            m_connectionString = connectionString;
        }

        //////////////////////////////////////////////////////////////
        //
        // All non queries are funneled through one connection
        // to increase performance a little
        //
        protected int ExecuteNonQuery(NpgsqlCommand cmd)
        {
            lock (m_dbLock)
            {
                using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
                {
                    dbcon.Open();
                    cmd.Connection = dbcon;

                    try
                    {
                        return cmd.ExecuteNonQuery();
                    }
                    catch (Exception e)
                    {
                        m_log.Error(e.Message, e);
                        return 0;
                    }
                }
            }
        }
    }
}