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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using OpenSim.Region.ScriptEngine.Common.TRPC;
namespace OpenSim.Region.ScriptEngine.Common
{
public class TRPC_Remote
{
public readonly int MaxQueueSize = 1024 * 10;
public readonly TCPCommon.ServerAndClientInterface TCPS;
public delegate void ReceiveCommandDelegate(int ID, string Command, params object[] p);
public event ReceiveCommandDelegate ReceiveCommand;
// TODO: Maybe we should move queue into TCPSocket so we won't have to keep one queue instance per connection
private System.Collections.Generic.Dictionary<int, InQueueStruct> InQueue = new Dictionary<int, InQueueStruct>();
private class InQueueStruct
{
public byte[] Queue;
public int QueueSize;
public object QueueLockObject = new object();
}
public TRPC_Remote(TCPCommon.ServerAndClientInterface TCPClientOrServer)
{
TCPS = TCPClientOrServer;
TCPS.Close += new TCPCommon.CloseDelegate(TCPS_Close);
TCPS.ClientConnected += new TCPCommon.ClientConnectedDelegate(TCPS_ClientConnected);
TCPS.DataReceived += new TCPCommon.DataReceivedDelegate(TCPS_DataReceived);
//TCPS.StartListen();
}
void TCPS_ClientConnected(int ID, System.Net.EndPoint Remote)
{
// Create a incoming queue for this connection
InQueueStruct iq = new InQueueStruct();
iq.Queue = new byte[MaxQueueSize];
iq.QueueSize = 0;
InQueue.Add(ID, iq);
}
void TCPS_Close(int ID)
{
// Remove queue
InQueue.Remove(ID);
}
void TCPS_DataReceived(int ID, byte[] data, int offset, int length)
{
// Copy new data to incoming queue
lock (InQueue[ID].QueueLockObject)
{
Array.Copy(data, offset, InQueue[ID].Queue, InQueue[ID].QueueSize, length);
InQueue[ID].QueueSize += length;
// Process incoming queue
ProcessQueue(ID);
}
}
private void ProcessQueue(int ID)
{
// This is just a temp implementation -- not so fast :)
InQueueStruct myIQS = InQueue[ID];
if (myIQS.QueueSize == 0)
return;
string receivedData = Encoding.ASCII.GetString(myIQS.Queue, 0, myIQS.QueueSize);
Debug.WriteLine("RAW: " + receivedData);
byte newLine = 10;
while (true)
{
bool ShouldProcess = false;
int lineEndPos = 0;
// Look for newline
for (int i = 0; i < myIQS.QueueSize; i++)
{
if (myIQS.Queue[i] == newLine)
{
ShouldProcess = true;
lineEndPos = i;
break;
}
}
// Process it?
if (!ShouldProcess)
return;
// Yes
string cmdLine = Encoding.ASCII.GetString(myIQS.Queue, 0, lineEndPos);
Debug.WriteLine("Command: " + cmdLine);
// Fix remaining queue in an inefficient way
byte[] newQueue = new byte[MaxQueueSize];
Array.Copy(myIQS.Queue, lineEndPos, newQueue, 0, myIQS.QueueSize - lineEndPos);
myIQS.Queue = newQueue;
myIQS.QueueSize -= (lineEndPos + 1);
// Now back to the command
string[] parts = cmdLine.Split(',');
if (parts.Length > 0)
{
string cmd = parts[0];
int paramCount = parts.Length - 1;
string[] param = null;
if (paramCount > 0)
{
// Process all parameters (decoding them from URL encoding)
param = new string[paramCount];
for (int i = 1; i < parts.Length; i++)
{
param[i - 1] = System.Web.HttpUtility.UrlDecode(parts[i]);
}
}
ReceiveCommand(ID, cmd, param);
}
}
}
public void SendCommand(int ID, string Command, params object[] p)
{
// Call PacketFactory to have it create a packet for us
//string[] tmpP = new string[p.Length];
string tmpStr = Command;
for (int i = 0; i < p.Length; i++)
{
tmpStr += "," + System.Web.HttpUtility.UrlEncode(p[i].ToString()); // .Replace(",", "%44")
}
tmpStr += "\n";
byte[] byteData = Encoding.ASCII.GetBytes(tmpStr);
TCPS.Send(ID, byteData, 0, byteData.Length);
}
}
}
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