// Npgsql.NpgsqlConnectedState.cs
//
// Author:
//     Dave Joyner <d4ljoyn@yahoo.com>
//
//    Copyright (C) 2002 The Npgsql Development Team
//    npgsql-general@gborg.postgresql.org
//    http://gborg.postgresql.org/project/npgsql/projdisplay.php
//
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

using System.IO;

namespace Npgsql
{
    internal sealed class NpgsqlConnectedState : NpgsqlState
    {
        public static readonly NpgsqlConnectedState Instance = new NpgsqlConnectedState();

        private NpgsqlConnectedState()
        {
        }

        public override void Startup(NpgsqlConnector context,NpgsqlConnectionStringBuilder settings)
        {
            NpgsqlStartupPacket startupPacket = new NpgsqlStartupPacket(context.Database, context.UserName, settings);

            startupPacket.WriteToStream(context.Stream);
            context.RequireReadyForQuery = false;

            ProcessAndDiscardBackendResponses(context);
        }

        public override void CancelRequest(NpgsqlConnector context)
        {
            NpgsqlCancelRequest CancelRequestMessage = new NpgsqlCancelRequest(context.BackEndKeyData);

            CancelRequestMessage.WriteToStream(context.Stream);
            context.Stream.Flush();
        }
    }
}
