public AsyncSendBufferManager(int bufferSize)
{
m_dynamicBufferManager = new DynamicBufferManager(bufferSize);
m_sendBufferList = new List <SendBufferPacket>();
m_sendBufferPacket.Offset = 0;
m_sendBufferPacket.Count = 0;
}
public AsyncSocketUserToken(int asyncReceiveBufferSize)
{
m_connectSocket = null;
m_receiveEventArgs = new SocketAsyncEventArgs();
m_receiveEventArgs.UserToken = this;
m_asyncReceiveBuffer = new byte[asyncReceiveBufferSize];
m_receiveEventArgs.SetBuffer(m_asyncReceiveBuffer, 0, m_asyncReceiveBuffer.Length);
m_sendEventArgs = new SocketAsyncEventArgs();
m_sendEventArgs.UserToken = this;
m_receiveBuffer = new DynamicBufferManager(Setting.BufferSize);
m_sendBuffer = new AsyncSendBufferManager(Setting.BufferSize);;
}
/// <summary>
/// 接收异步事件返回的数据，用于对数据进行缓存和分包
/// 把收到数据先写入一个缓存，然后进行分包，
/// 分包后压给包处理函数ProcessPacket，
/// ProcessPacket函数然后调用ProcessCommand处理具体的命令
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <returns></returns>
public virtual bool ProcessReceive(byte[] buffer, int offset, int count) //
{
m_activeDT = DateTime.UtcNow;
DynamicBufferManager receiveBuffer = m_asyncSocketUserToken.ReceiveBuffer;
receiveBuffer.WriteBuffer(buffer, offset, count);
bool result = true;
while (receiveBuffer.DataCount > sizeof(int))
{
//按照长度分包
int packetLength = BitConverter.ToInt32(receiveBuffer.Buffer, 0); //获取包长度
if (NetByteOrder)
{
packetLength = System.Net.IPAddress.NetworkToHostOrder(packetLength); //把网络字节顺序转为本地字节顺序
}
if ((packetLength > 10 * 1024 * 1024) | (receiveBuffer.DataCount > 10 * 1024 * 1024)) //最大Buffer异常保护
{
return(false);
}
if ((receiveBuffer.DataCount - sizeof(int)) >= packetLength) //收到的数据达到包长度
{
result = ProcessPacket(receiveBuffer.Buffer, sizeof(int), packetLength);
if (result)
{
receiveBuffer.Clear(packetLength + sizeof(int)); //从缓存中清理
}
else
{
return(result);
}
}
else
{
return(true);
}
}
return(true);
}