protected virtual void ReceiveCallback(IAsyncResult ar)
{
try
{
StateObj clientObj = ar.AsyncState as StateObj;
_receiveDone.Set();
//System.IO.MemoryStream ms = new System.IO.MemoryStream(); ms.Seek(0, System.IO.SeekOrigin.Begin);
int receiveLength = clientObj.ClientSocket.EndReceive(ar);
if (receiveLength < clientObj.Receive_buffer.Length)
{
Array.Resize(ref clientObj.Receive_buffer, receiveLength);
}
lock (lockObj)
{
//Think:如果Client送過來的資料太大會被分割成數塊buffer大小的數據,測試時看起來依然會依切割的順序進來,不會亂入
//不過這樣判斷就需要有個判斷, 可以知道資料的結尾, 才能清除存資料的buffer
//ref:http://stackoverflow.com/questions/18368130/how-to-parse-and-validate-a-websocket-frame-in-java
if ((clientObj.Receive_buffer[0] & 0x80) != 0x80)
{
this.buffer.Clear();//要清除buffer
}
foreach (byte b in clientObj.Receive_buffer)
{
this.buffer.Enqueue(b);
}
dataCollection.Add(clientObj.SequnceNO, clientObj.Receive_buffer);
//Available 無法當依據,兩個非同步同時進來都是0
if (clientObj.ClientSocket.Available > 0)
{
Logger.WriteLog("還有多少數據可讀取:" + clientObj.ClientSocket.Available);
return;
}
else
{
Logger.WriteLog("Buffer資料量:" + this.buffer.Count);
Logger.WriteLog("Data:" + BitConverter.ToString(this.buffer.ToArray()));
Console.WriteLine("按一下吧 Available:{0}", clientObj.ClientSocket.Available);
//Console.ReadKey();
Console.WriteLine("dataCollection:{0}", dataCollection.Count);
//Console.ReadKey();
}
}
//lock (receiveData)
//{
//receiveData = receiveData.Concat(clientObj.ReceiveData);
//}
string echo = "hello i am server!國字";
byte[] send2 = Package(Encoding.UTF8.GetBytes(echo));
clientObj.ClientSocket.Send(send2, 0, send2.Length, SocketFlags.None);
//判斷websocket frame格式
bool over126 = false;
long payloadSize_over126;
//下一次來的mask-key要重取
if (/*null == _maskingKey && */ !FilterPayloadData(this.buffer.ToArray(), out over126, out payloadSize_over126))
{
_clientHandler.CancelAsync();
}
byte[] data = ParseRealData(_maskingKey, this.buffer.ToArray(), this._kindOfLength + this._maskingKey.Length);
string receive = Encoding.UTF8.GetString(data); //超過ASCII的長度就是3 bytes為一個單位
Logger.WriteLog("Client " + clientObj.SequnceNO + " ReceiveData:" + receive);
if (receive.Contains("Exit"))
{
_keepAlive = false;
_receiveDone.Set();
}
byte[] sendData = Encoding.UTF8.GetBytes("Server Say:" + receive);
sendData = Package(sendData);
clientObj.ClientSocket.BeginSend(sendData, 0, sendData.Length, SocketFlags.None, SendCallback, clientObj.ClientSocket);
Logger.WriteLog("SendLength:" + sendData.Length + " Server Say:" + receive);
}
catch (SocketException sckEx)
{
Logger.WriteLog(sckEx.Message);
}
}
public void Handle(AbsRequestHandler handler)
{
Logger.WriteLog("Client " + handler.ClientNo + " Exit ...");
//exit state
handler.CancelAsync();
}
public void Handle(AbsRequestHandler handler)
{
Logger.WriteLog("Client " + handler.ClientNo + " Exit ...");
//exit state
handler.CancelAsync();
}