/// <summary>
/// 发送数据块
/// </summary>
/// <param name="dataBlock"></param>
public virtual void Send(DataBlock dataBlock)
{
SafeSend(dataBlock);
}
/// <summary>
/// 收到数据
/// </summary>
/// <param name="dataBlock">数据块</param>
protected virtual void OnReceivedData(DataBlock dataBlock)
{
}
protected virtual void OnSendEnd(DataBlock target)
{
}
/// <summary>
/// 发送数据块
/// </summary>
/// <param name="dataBlock"></param>
public override void Send(DataBlock dataBlock)
{
Send(new MessageBlock(dataBlock));
}
/// <summary>
/// Initializes a new instance of the <see cref="DataBlockArgs"/> class.
/// </summary>
/// <param name="dataBlock">The data block.</param>
public DataBlockArgs(DataBlock dataBlock)
{
this.dataBlock = dataBlock;
}
/// <summary>
/// 接收数据,逻辑处理需要重载该函数
/// </summary>
/// <param name="session">会话</param>
/// <param name="dataBlock">数据</param>
protected virtual void OnReceivedData(TSession session, DataBlock dataBlock)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="MessageBlock"/> class.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="parameter">The parameter.</param>
/// <param name="body">The body.</param>
public MessageBlock(MessageBlockType type, int parameter, DataBlock body)
: this()
{
Type = type;
Parameter = parameter;
if (body != null)
Body = body;
CreateHead();
}
/// <summary>
/// �ϲ��������ݿ�
/// </summary>
/// <param name="lhs">��߲�������</param>
/// <param name="rhs">�ұ߲�������</param>
/// <returns></returns>
public static DataBlock operator +(DataBlock lhs, DataBlock rhs)
{
if (lhs == null && rhs == null)
return null;
else if (lhs == null)
{
DataBlock result = new DataBlock(rhs.DataLength);
result.Add(rhs.buffer, rhs.ReadIndex, rhs.DataLength);
return result;
}
else if (rhs == null)
{
DataBlock result = new DataBlock(lhs.DataLength);
result.Add(lhs.buffer, lhs.ReadIndex, lhs.DataLength);
return result;
}
else
{
DataBlock result = new DataBlock(lhs.DataLength + rhs.DataLength);
result.Add(lhs.buffer, lhs.ReadIndex, lhs.DataLength);
result.Add(rhs.buffer, rhs.ReadIndex, rhs.DataLength);
return result;
}
}
/// <summary>
/// ���յ�readCount�����ݡ�
/// </summary>
/// <param name="readCount">���ݶ�ȡ�ĸ���</param>
protected internal override void ReceivedData(int readCount)
{
//�̰߳�ȫ���ѣ������ڶ��߳��е���
this.Buffer.WriteIndex += readCount;
//����ϴ�Ϊʹ�õ����ݣ����½���
cmdData += Buffer;
//����������
Buffer.Reset();
//ʹ�ù涨���ַ��������ַ�
string rawCmd = Encoding.GetString(cmdData.Buffer, cmdData.ReadIndex, cmdData.DataLength);
//��ֹ����������ַ������������Ƶ�����
if(rawCmd.Length > MaxCommandLength)
{
throw new NetException("����̫��");
}
int length;
string[] cmdArray = StringEx.Split(rawCmd, NewLines,out length);
foreach (string cmd in cmdArray)
{
//�̰߳�ȫ
EventHandler<TEventArgs<string>> temp = ReceivedCommand;
if (temp != null)
{
temp(this, new TEventArgs<string>(cmd));
}
}
//����Ѿ�ʹ�õ��ַ��������ݳ��ȣ�Ȼ������Ϊ�Ѿ���ȡ
cmdData.ReadIndex += Encoding.GetByteCount(rawCmd.Substring(0, length));
}
/// <summary>
/// 创建一个空MessageBlock,只包含头信息
/// </summary>
public MessageBlock()
{
Head = new DataBlock(HeadLength);
}
/// <summary>
/// Initializes a new instance of the <see cref="MessageBlock"/> class.
/// </summary>
/// <param name="body">The body.</param>
public MessageBlock(DataBlock body)
: this(MessageBlockType.AppData, 0, body)
{
}
/// <summary>
/// ����һ����MessageBlock,ֻ����ͷ��Ϣ
/// </summary>
public MessageBlock()
{
Head = new DataBlock(HeadLength);
}
/// <summary>
/// �����ݵõ�һ����Ϣ
/// </summary>
/// <param name="data">������Ϣ������</param>
/// <param name="getHeadData">�Ƿ�õ�ͷ��Ϣ</param>
public void FromBytes(byte[] data, bool getHeadData, int maxBodyLength)
{
int index = 0;
int length = (int)MyConvert.ToUInt32(data, index);
bodyLength = length - HeadLength;
if (bodyLength > maxBodyLength)
{
throw new NetException(string.Format("message is too large {0}/{1}", bodyLength, maxBodyLength));
}
index += 4;
Type = (MessageBlockType)MyConvert.ToUInt32(data, index);
index += 4;
Parameter = (int)MyConvert.ToUInt32(data, index);
if (!getHeadData && length > HeadLength)
{
index += 4;
body = new DataBlock(length - HeadLength);
Array.Copy(data, index, body.Buffer, body.WriteIndex, body.WritableLength);
body.WriteIndex += body.WritableLength;
}
else if (BodyLength >= 0)
{
body = new DataBlock(length - HeadLength);
}
else
{
throw new NetException("Bad message block head data.");
}
}
/// <summary>
/// ������Ϣ���ã����ɱ���ͷ��Ϣ
/// </summary>
public void CreateHead()
{
if (Head == null || Head.Buffer == null)
{
Head = new DataBlock(HeadLength);
}
byte[] result = this.head.Buffer;
byte[] lengthBytes = MyConvert.ToBytes(Length);
byte[] typeBytes = MyConvert.ToBytes((int)Type);
byte[] parameterBytes = MyConvert.ToBytes(Parameter);
int index = 0;
//��ӳ�����Ϣ
Array.Copy(lengthBytes, 0, result, index, 4);
index += 4;
//���������Ϣ
Array.Copy(typeBytes, 0, result, index, 4);
index += 4;
//��Ӳ�����Ϣ
Array.Copy(parameterBytes, 0, result, index, 4);
//��չ��Ϣ��δʹ�ã���Ϊ0
index += 8;
this.Head.WriteIndex = HeadLength;
}
/// <summary>
/// Session������ʱ�Զ������á��̳�����������Ķ��塣
/// </summary>
protected virtual void OnCreate()
{
Buffer = new DataBlock(4096);
}
/// <summary>
/// Session被创建时自动被调用。继承类可以修改它的定义。
/// </summary>
protected virtual void OnCreate()
{
Buffer = new DataBlock(4096);
}
/// <summary>
/// 把数据封装到信息中发送
/// </summary>
/// <param name="session"></param>
/// <param name="data"></param>
public override void Send(TSession session, DataBlock data)
{
Send(session, new MessageBlock(data));
}
/// <summary>
/// Initializes a new instance of the <see cref="DataBlockArgs"/> class.
/// </summary>
/// <param name="dataBlock">The data block.</param>
public DataBlockArgs(DataBlock dataBlock)
{
this.dataBlock = dataBlock;
}
public virtual void Send(TSession session, DataBlock data)
{
AtomSend(session, data.Buffer, data.ReadIndex, data.DataLength);
}
/// <summary>
/// Initializes a new instance of the <see cref="MessageBlock"/> class.
/// </summary>
/// <param name="body">The body.</param>
public MessageBlock(DataBlock body)
: this(MessageBlockType.AppData, 0, body)
{
}
