protected virtual void SendData(byte[] data, int len)
{
if (connected)
{
uint new_conv = 0;
KCP.ikcp_decode32u(data, 0, ref new_conv);
Log.Error("send_cov=" + new_conv + ",time=" + GetCurrent());
//查找有没有空闲的发送MySocketEventArgs,有就直接拿来用,没有就创建新的.So easy!
MySocketEventArgs sendArgs = listArgs.Find(a => a.IsUsing == false);
if (sendArgs == null)
{
sendArgs = initSendArgs();
}
lock (sendArgs) //要锁定,不锁定让别的线程抢走了就不妙了.
{
sendArgs.IsUsing = true;
sendArgs.SetBuffer(data, 0, len);
}
if (!clientSocket.SendToAsync(sendArgs))
{
sendArgs.IsUsing = false;
ProcessSend(sendArgs);
}
}
else
{
throw new SocketException((Int32)SocketError.NotConnected);
}
}
/// <summary>
/// 初始化收发参数
/// </summary>
/// <param name="e"></param>
private void initArgs(SocketAsyncEventArgs e)
{
//发送参数
initSendArgs();
MySocketEventArgs readArgs = this.receiveEventArgsPool.Rent <MySocketEventArgs>();
this.clientSocket.ReceiveFromAsync(readArgs);
}
private MySocketEventArgs ConfigureSocketEventArgs()
{
var eventArg = new MySocketEventArgs();
eventArg.Completed += new EventHandler <SocketAsyncEventArgs>(this.IO_Completed);
m_bufferManager.SetBuffer(eventArg);
eventArg.RemoteEndPoint = localEndPoint;
eventArg.ArgsTag = 0;
return(eventArg);
}
// This method is invoked when an asynchronous receive operation completes.
// If the remote host closed the connection, then the socket is closed.
// If data was received then the data is echoed back to the client.
//
private void ProcessReceive(SocketAsyncEventArgs e)
{
try
{
Log.Error("EEE=" + e.BytesTransferred + "," + e.SocketError + "," + e.Count);
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
MySocketEventArgs eventArgs = this.receiveEventArgsPool.Rent <MySocketEventArgs>();
this.clientSocket.ReceiveFromAsync(eventArgs);
//读取数据
byte[] data = new byte[e.BytesTransferred];
Array.Copy(e.Buffer, e.Offset, data, 0, e.BytesTransferred);
if (!(data.Length < KCP.IKCP_OVERHEAD))
{
lock (kcpManager)
{
uint new_conv = 0;
KCP.ikcp_decode32u(data, 0, ref new_conv);
if (kcpManager.ContainsKey(new_conv))
{
kcpManager[new_conv].Input(data);
}
}
}
this.receiveEventArgsPool.Return((MySocketEventArgs)e);
/*
* if (!token.ReceiveFromAsync(e))
* this.ProcessReceive(e);
*/
}
else
{
ProcessError(e);
}
}
catch (Exception xe)
{
Console.WriteLine(xe.Message);
}
}
/// <summary>
/// 初始化发送参数MySocketEventArgs
/// </summary>
/// <returns></returns>
MySocketEventArgs initSendArgs()
{
MySocketEventArgs sendArg = new MySocketEventArgs();
sendArg.Completed += new EventHandler <SocketAsyncEventArgs>(IO_Completed);
sendArg.UserToken = clientSocket;
sendArg.RemoteEndPoint = hostEndPoint;
sendArg.DisconnectReuseSocket = true;
sendArg.IsUsing = false;
Interlocked.Increment(ref tagCount);
sendArg.ArgsTag = tagCount;
lock (listArgs)
{
listArgs.Add(sendArg);
}
return(sendArg);
}
void IO_Completed(object sender, SocketAsyncEventArgs e)
{
MySocketEventArgs mys = (MySocketEventArgs)e;
Log.Error("111111111=" + e.LastOperation);
// determine which type of operation just completed and call the associated handler
switch (e.LastOperation)
{
case SocketAsyncOperation.ReceiveFrom:
ProcessReceive(e);
break;
case SocketAsyncOperation.SendTo:
mys.IsUsing = false; //数据发送已完成.状态设为False
ProcessSend(e);
break;
default:
throw new ArgumentException("The last operation completed on the socket was not a receive or send");
}
}