/// <summary>
/// 获取一条可用数据，返回值标记是否有数据
/// </summary>
/// <param name="tmpSocketData"></param>
/// <returns></returns>
public bool GetData(out TmpSocketData tmpSocketData)
{
tmpSocketData = new TmpSocketData();
if (_buffLength <= 0)
{
UpdateDataLength();
}
if (_buffLength > 0 && _curBuffPosition >= _buffLength)
{
tmpSocketData.buffLength = _buffLength;
tmpSocketData.dataLength = _dataLength;
tmpSocketData.protocallType = _protocalType;
tmpSocketData.data = new byte[_dataLength];
Array.Copy(_buff, Constants.HEAD_LEN, tmpSocketData.data, 0, _dataLength);
_curBuffPosition -= _buffLength;
// 粘包，把剩下的字节取出给_buff
byte[] _tmpBuff = new byte[_curBuffPosition < _minBuffLen ? _minBuffLen : _curBuffPosition];
Array.Copy(_buff, _buffLength, _tmpBuff, 0, _curBuffPosition);
_buff = _tmpBuff;
_buffLength = 0;
_dataLength = 0;
_protocalType = 0;
return(true);
}
return(false);
}
/// <summary>
/// 数据转网络结构
/// TODO 这个转换没什么用，可以去掉
/// </summary>
/// <param name="_protocalType"></param>
/// <param name="_data"></param>
/// <returns></returns>
private TmpSocketData BytesToSocketData(uint _protocalType, byte[] _data)
{
TmpSocketData tmpSocketData = new TmpSocketData();
tmpSocketData.buffLength = (uint)(Constants.HEAD_LEN + _data.Length);
tmpSocketData.dataLength = (uint)_data.Length;
tmpSocketData.protocallType = _protocalType;
tmpSocketData.data = _data;
return(tmpSocketData);
}
/// <summary>
/// 网络结构转数据
/// </summary>
/// <param name="tmpSocketData"></param>
/// <returns></returns>
private byte[] SocketDataToBytes(TmpSocketData tmpSocketData)
{
byte[] _tmpBuff = new byte[tmpSocketData.buffLength];
byte[] _dataLength = BitConverter.GetBytes(tmpSocketData.buffLength - Constants.HEAD_LEN);
byte[] _protocallTypeLength = BitConverter.GetBytes((uint)tmpSocketData.protocallType);
// 消息体长度
Array.Copy(_dataLength, 0, _tmpBuff, 0, Constants.HEAD_DATA_LEN);
// 协议类型
Array.Copy(_protocallTypeLength, 0, _tmpBuff, Constants.HEAD_DATA_LEN, Constants.HEAD_TYPE_LEN);
// 协议数据
Array.Copy(tmpSocketData.data, 0, _tmpBuff, Constants.HEAD_LEN, tmpSocketData.dataLength);
return(_tmpBuff);
}