/// <summary>
/// 将收到的数据写入
/// </summary>
/// <param name="buffer">收到的数据缓存</param>
/// <param name="offset">从字节偏移处拷贝</param>
/// <param name="count">写入的长度</param>
public bool WriteData(byte[] buffer, int offset, int count)
{
//先锁定，否则字节流的顺序未必会是正确的顺序
lock (this)
{
//一定要在系统设计时避免大的命令包，过长的数据拆分成小指令包发送
//这个缓冲一定要避免越界, 各个分系统之间一定要设计好指定包的最大长度
//1.首先判断当前是否正在等待数据
if (IsWaitingData)
{
int copyCount = (count >= (_PacketDataSize - PacketDataHaveSize)) ? _PacketDataSize - PacketDataHaveSize : count;
if (copyCount > 0)
{
CopyBytes(PacketBytes, PacketDataHaveSize, buffer, offset, copyCount);
PacketDataHaveSize += (Int32)copyCount;
}
//判断命令包的数据是否接收完毕, 否则继续等待
if (PacketDataHaveSize >= _PacketDataSize)
{
bool eventReturn = true;
//通知外部事件处理
eventReturn = TCPHandleMsgManager.HandleMsg(this.PacketCmdID, this.GetPacketBytes(), this.PacketDataSize);
//清空当前的状态
_PacketCmdID = 0;
_PacketDataSize = 0;
PacketDataHaveSize = 0;
IsWaitingData = false;
CmdHeaderSize = 0;
if (!eventReturn) //处理失败，要求关闭连接
{
//return false;//消息类型太多没注册，暂时屏蔽掉这个错误。
}
//处理剩余的字节
if (count > copyCount)
{
//改变参数
offset += copyCount;
count -= copyCount;
//接收数据(递归实现, 简单)
return(WriteData(buffer, offset, count));
}
}
return(true);
}
else
{
//正在等待接收命令头
int copyLeftSize = count > (8 - CmdHeaderSize) ? (8 - CmdHeaderSize) : count;
CopyBytes(CmdHeaderBuffer, CmdHeaderSize, buffer, offset, copyLeftSize);
CmdHeaderSize += copyLeftSize;
if (CmdHeaderSize < 8)
{
return(true); //继续等待
}
//首先读取4个字节的整数
_PacketDataSize = BitConverter.ToInt32(CmdHeaderBuffer, 0);
//再读取2个字节的指令
_PacketCmdID = BitConverter.ToInt32(CmdHeaderBuffer, 4);
if (_PacketDataSize <= 0 || _PacketDataSize >= RECV_MAX_SIZE)
{
//throw new Exception(string.Format("接收到的非法数据长度的tcp命令, Cmd={0}, Length={1} , 需要立即和服务器端断开!", (TCPGameServerCmds)_PacketCmdID, _PacketDataSize));
//LogManager.WriteLog(LogTypes.Error, string.Format("接收到的非法数据长度的tcp命令, Cmd={0}, Length={1}, offset={2}, count={3}", (TCPGameServerCmds)_PacketCmdID, _PacketDataSize, offset, count));
return(false);
}
//增加偏移
offset += copyLeftSize;
//减少拷贝量
count -= copyLeftSize;
//等待数据中...
IsWaitingData = true;
//接收的字节归0
PacketDataHaveSize = 0;
_PacketDataSize -= 8; //减去命令的长度
//接收数据(递归实现, 简单)
return(WriteData(buffer, offset, count));
}
}
}
private UserCreateManager()
{
TCPHandleMsgManager.AddMsgDelegate((int)MSGCMDS.CMD_CREATE, TCPHandleMsgDelegate);
}