mKCP.PeekSize 必须读到小于0才行。
要不数据有可能收到了，但是上层读不到

请问TODO的FEC和加密在实现计划中吗

为何不实现类似kcp-go服务端的c#源码？

Flush函数中有两个匿名函数，会导致GC Alloc，初步分析是对writeIndex的闭包导致的。
有没有考虑过将这里的匿名函数改成普通函数的实现。我自己这么改了，确实能减少GC

        public UInt32 Flush(bool ackOnly)
        {
            // other code
            var writeIndex = reserved;
            Action<int> makeSpace = (space) =>
            {
                if (writeIndex + space > mtu)
                {
                    if (ikcp_canlog(IKCP_LOG_OUTPUT))
                    {
                        ikcp_log($"[RO] {writeIndex.ToString()} bytes");
                    }
                    output(buffer, writeIndex);
                    writeIndex = reserved;
                }
            };

            Action flushBuffer = () =>
            {
                if (writeIndex > reserved)
                {
                    if (ikcp_canlog(IKCP_LOG_OUTPUT))
                    {
                        ikcp_log($"[RO] {writeIndex.ToString()} bytes");
                    }
                    output(buffer, writeIndex);
                }
            };

           // other code
         }

看到介绍，可以连接kcp-go，而采用最新的kcp-csharp 及 最新的kcp-go，好像无法建立连接
我这边尝试用kcp-csharp 连接 基于kcp-go的kcptun服务端，在端口正确的情况下无法建立连接。
在kcp-go的sess.go中添加log发现问题原因为：
receiver函数中下列语句判断包为无效包
“if n, from, err := l.conn.ReadFromUDP(data); err == nil && n >= l.headerSize+IKCP_OVERHEAD”
其中，n = 34 ，l.headerSize = 28 , IKCP_OVERHEAD = 24

是kcp-go这边发生变化了吗？
如何能建立连接？

你好，我们用了这个库，用了最新的commit，7ed200bb258b7b1e54046a527bf9a91921c2e248
我们会在每一帧调用Update函数，但是今天发现有崩溃的问题，堆栈如下：
NullReferenceException: Object reference not set to an instance of an object
KcpProject.KCP.Flush (System.Boolean ackOnly) (at Assets/Framework/ThirdParty/KCP/KCP.cs:917)
KcpProject.KCP.Update () (at Assets/Framework/ThirdParty/KCP/KCP.cs:1005)
KcpProject.UDPSession.Update () (at Assets/Framework/ThirdParty/KCP/UDPSession.cs:151)
Framework.KCPClient.OnUpdateTick () (at Assets/Framework/CSharp/Network/KCPClient.cs:47)

Hi there,

Thanks for providing a good implemetation of KCP for .NET!

Are you able to add a license to the project so that people can use it? By default a repository without a license is not usable without risk of legal action etc.

KCP is MIT licensed so it would be nice to follow suit, but obviously that is your choice!

Jamie

I get error form this line (line 917)
var need = IKCP_OVERHEAD + segment.data.ReadableBytes;
the error is System.NullReferenceException: 'Object reference not set to an instance of an object.'
segment.data 'was' null
it's happened after sending 100 packets and sometimes happend after 24000 packets

System.Net.Sockets.SocketException (10054): 远程主机强迫关闭了一个现有的连接。
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at KcpProject.UDPSession.Recv(Byte[] data, Int32 index, Int32 length) in C:\Users\Admin\Downloads\ConsoleApp2\UDPSession.cs:line 133
Receive Message failed.

没有动代码，跑不通，请问是什么原因呢

I tried the example on this project but it seems the kcp for golang doesn’t work. Tried sending a message from this c# script but golang server won’t recognize it.

Hey,
is there any chance that you could provide a server example / a server kcp version too?
Would happily pay you for your work.

Let me know :)

kcp.cs里用append()和slice()来操作Segment[](rcv_que, snd_que,rcv_buf, snd_buf)，而每次append和slice都会重新分配内存。
是否可以考虑使用一个nrcv_que来表示实际长度，而snd_buf.Length只表示capacity，这样修改长度的时候只需要调整nrcv_que的指向位置，不必产生大量的内存分配

我在unity5中重新写了一个测试客户端
https://github.com/RainsSoft/kcp-csharp/
测试了一天，内存稳定，没有报错，不过测试代码较为简单

每几秒发一个包的时候 丢包时候 不会立即重发 会跟下一个包一起在重发 打日志看rawSend也没有发送 可以帮忙看下吗

void init_kcp(UInt32 conv)
{
mKcp = new KCP(conv, (byte[] buf, int size) =>
{
//这里偶现的会报异常，Socket has bean shut down，这里建议怎么处理呢
mUdpClient.Send(buf, size);
});

        // fast mode.
        mKcp.NoDelay(1, 10, 2, 1);
        mKcp.WndSize(128, 128);
    }

目前预想的是这样，同时建立TCP链接和KCP链接，如果通过KCP发送不成功，就切回TCP继续发送。
请问这个大概怎么做可以实现？

code position is KCP class at "NoDelay" function

/* some code ... /
else if (interval < 10)
{
interval_ = 0; //_* bug!!!! it must be 10.**
}
/* some code ... */

i try test.. this project ^^

Send function is good

but... mRecvBuffer.ReadableBytes not work.....

how can i use this?