public int Recv(byte[] data, int index, int length)
{
// 上次剩下的部分
if (mRecvBuffer.ReadableBytes > 0)
{
var recvBytes = Math.Min(mRecvBuffer.ReadableBytes, length);
Buffer.BlockCopy(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, data, index, recvBytes);
mRecvBuffer.ReaderIndex += recvBytes;
// 读完重置读写指针
if (mRecvBuffer.ReaderIndex == mRecvBuffer.WriterIndex)
{
mRecvBuffer.Clear();
}
return(recvBytes);
}
if (mSocket == null)
{
return(-1);
}
if (!mSocket.Poll(0, SelectMode.SelectRead))
{
return(0);
}
var rn = 0;
try
{
rn = mSocket.Receive(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, mRecvBuffer.WritableBytes, SocketFlags.None);
}
catch (Exception ex) {
GameLog.Log(ex.Message);
rn = -1;
}
if (rn <= 0)
{
return(rn);
}
mRecvBuffer.WriterIndex += rn;
var inputN = mKCP.Input(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, mRecvBuffer.ReadableBytes, true, AckNoDelay);
if (inputN < 0)
{
mRecvBuffer.Clear();
return(inputN);
}
mRecvBuffer.Clear();
// 读完所有完整的消息
for (;;)
{
var size = mKCP.PeekSize();
if (size <= 0)
{
break;
}
mRecvBuffer.EnsureWritableBytes(size);
var n = mKCP.Recv(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, size);
if (n > 0)
{
mRecvBuffer.WriterIndex += n;
}
}
// 有数据待接收
if (mRecvBuffer.ReadableBytes > 0)
{
return(Recv(data, index, length));
}
return(0);
}
public int Recv(byte[] data, int index, int length)
{
// 上次剩下的部分
if (mRecvBuffer.ReadableBytes > 0)
{
var recvBytes = Math.Min(mRecvBuffer.ReadableBytes, length);
Buffer.BlockCopy(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, data, index, recvBytes);
mRecvBuffer.ReaderIndex += recvBytes;
// 读完重置读写指针
if (mRecvBuffer.ReaderIndex == mRecvBuffer.WriterIndex)
{
mRecvBuffer.Clear();
}
return(recvBytes);
}
if (mSocket == null)
{
return(-1);
}
if (!mSocket.Poll(0, SelectMode.SelectRead))
{
return(0);
}
var rn = 0;
try {
rn = mSocket.Receive(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, mRecvBuffer.WritableBytes, SocketFlags.None);
} catch (Exception ex) {
Console.WriteLine(ex.Message);
rn = -1;
}
if (rn <= 0)
{
return(rn);
}
mRecvBuffer.WriterIndex += rn;
var inputN = mKCP.Input(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, mRecvBuffer.ReadableBytes, true, true);
if (inputN < 0)
{
mRecvBuffer.Clear();
return(inputN);
}
mRecvBuffer.Clear();
var size = mKCP.PeekSize();
if (size > 0)
{
// 外部缓存足够时， 直接写入
if (length > size)
{
return(mKCP.Recv(data, index, length));
}
// 使用内部缓存
mRecvBuffer.EnsureWritableBytes(size);
var n = mKCP.Recv(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, size);
if (n > 0)
{
mRecvBuffer.WriterIndex += n;
}
// 余下部分，下次接受
Buffer.BlockCopy(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, data, index, length);
mRecvBuffer.ReaderIndex += length;
return(length);
}
return(0);
}
public int Recv(byte[] data, int index, int length)
{
// 上次剩下的部分
if (mRecvBuffer.ReadableBytes > 0)
{
var recvBytes = Math.Min(mRecvBuffer.ReadableBytes, length);
Buffer.BlockCopy(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, data, index, recvBytes);
mRecvBuffer.ReaderIndex += recvBytes;
// 读完重置读写指针
if (mRecvBuffer.ReaderIndex == mRecvBuffer.WriterIndex)
{
mRecvBuffer.Clear();
}
return(recvBytes);
}
if (mSocket == null)
{
return(-1);
}
if (!mSocket.Poll(0, SelectMode.SelectRead))
{
return(0);
}
var rn = 0;
try
{
rn = mSocket.Receive(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, mRecvBuffer.WritableBytes,
SocketFlags.None);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
rn = -1;
}
if (rn <= 0)
{
return(rn);
}
mRecvBuffer.WriterIndex += rn;
// 检查加密
if (block != null)
{
block.Decrypt(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, mRecvBuffer.ReadableBytes);
var checksum = Crc32Algorithm.Compute(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex + cryptHeaderSize,
mRecvBuffer.ReadableBytes - cryptHeaderSize);
uint data_checksum = 0;
KCP.ikcp_decode32u(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex + nonceSize, ref data_checksum);
// Console.WriteLine("checksum "+checksum+" ="+data_checksum);
if (checksum == data_checksum)
{
mRecvBuffer.ReaderIndex += cryptHeaderSize;
}
else
{
// 丢弃数据包
rn = -1;
return(rn);
}
}
var inputN = mKCP.Input(mRecvBuffer.RawBuffer, mRecvBuffer.ReaderIndex, mRecvBuffer.ReadableBytes, true,
true);
if (inputN < 0)
{
mRecvBuffer.Clear();
return(inputN);
}
mRecvBuffer.Clear();
// 读完所有完整的消息
for (;;)
{
var size = mKCP.PeekSize();
if (size <= 0)
{
break;
}
mRecvBuffer.EnsureWritableBytes(size);
var n = mKCP.Recv(mRecvBuffer.RawBuffer, mRecvBuffer.WriterIndex, size);
if (n > 0)
{
mRecvBuffer.WriterIndex += n;
}
}
// 有数据待接收
if (mRecvBuffer.ReadableBytes > 0)
{
return(Recv(data, index, length));
}
return(0);
}
