/// <summary>
/// Sends a block to the world
/// </summary>
/// <param name="blockRequest">The block to send</param>
internal void UploadBlockRequest(BlockRequest blockRequest)
{
Block block = blockRequest.Block;
if (block != null)
{
block.Upload();
blockRequest.HasBeenSent = true;
Thread.Sleep(blockRequest.BlockThrottle);
}
}
/// <summary>
/// Adds the block to the end of the list
/// </summary>
/// <param name="block">The block to be queued</param>
/// <param name="blockThrottle">The speed of the block to be uploaded at</param>
internal void QueueBlock(Block block, int blockThrottle)
{
BlockRequest request = new BlockRequest(block, blockThrottle);
m_Queue.Add(request);
if (IsUploadThreadDead())
{
CreateUploadThread();
}
}
/// <summary>
/// The upload thread loop
/// </summary>
private void UploadThread()
{
try
{
while (m_Queue.Count > 0)
{
//Send the most tasked block
BlockRequest send = GetNextInList();
if (send == null)
{
break;
}
else if (send.Missed)
{
bool removed = false;
Block existing = m_WorldConnection.World[send.Block.X, send.Block.Y, send.Block.Layer];
if (existing.EqualsBlock(send.Block))
{
for (int i = 0; i < m_Queue.Count; i++)
{
if (m_Queue[i].Block.EqualsBlock(send.Block))
{
m_Queue.RemoveAt(i);
removed = true;
break;
}
}
}
if (removed)
{
continue;
}
}
send.Request();
m_WorldConnection.UploadBlockRequest(send);
}
}
catch (ThreadAbortException)
{
//Handled
}
if (m_ResetEvent != null)
{
m_ResetEvent.Set();
}
}
/// <summary>
/// Gets the next in the list
/// </summary>
/// <returns>The next block that should be sent</returns>
private BlockRequest GetNextInList()
{
long oldestRequestTime = 0;
BlockRequest oldestMissed = null;
for (int i = 0; i < m_Queue.Count; i++)
{
if (m_Queue[i].Missed)
{
if (!m_Queue[i].Timestamp.HasValue)
{
return(m_Queue[i]);
}
long timePassed = m_Queue[i].GetTimePassed();
if (timePassed >= oldestRequestTime)
{
oldestRequestTime = timePassed;
oldestMissed = m_Queue[i];
}
}
}
if (oldestMissed != null)
{
return(oldestMissed);
}
//Check queue for the oldest unattempted send
for (int i = 0; i < m_Queue.Count; i++)
{
if (!m_Queue[i].HasBeenSent)
{
return(m_Queue[i]);
}
}
return(null);
}
