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path: root/OpenSim/Region/Environment/Interfaces/ITextureSender.cs
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/*
* 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 OpenSim 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;

namespace OpenSim.Region.Environment.Interfaces
{
    /// <summary>
    /// Interface for an object which can send texture information to a client
    /// </summary>
    public interface ITextureSender
    {        
        /// <summary>
        /// Are we in the process of sending the texture?
        /// </summary>
        bool Sending { get; set; }
        
        /// <summary>
        /// Has the texture send been cancelled?
        /// </summary>
        bool Cancel { get; set; }
        
        /// <summary>
        /// Update the non data properties of a texture request
        /// </summary>
        /// <param name="discardLevel"></param>
        /// <param name="packetNumber"></param>
        void UpdateRequest(int discardLevel, uint packetNumber);

        /// <summary>
        /// Send a texture packet to the client.
        /// </summary>
        /// <returns>True if the last packet has been sent, false otherwise.</returns>
        bool SendTexturePacket();     
    }
}