private void ProcessReceive(SocketAsyncEventArgs receiver)
{
if (receiver.LastOperation != SocketAsyncOperation.Receive)
{
return;
}
if (receiver.BytesTransferred > 0)
{
if (receiver.SocketError == SocketError.Success)
{
int _byteTransferred = receiver.BytesTransferred;
string _received = Encoding.Unicode.GetString(receiver.Buffer, receiver.Offset, _byteTransferred);
SocketRequestMessage _msg = SocketRequestHandler.GetActualString(_received);
if (this.OnMsgReceived != null)
{
OnMsgReceived((receiver as SocketAsyncEventArgsImpl).UID, _msg);
}
bool _willRaiseEvent = (receiver.UserToken as Socket).ReceiveAsync(receiver);
if (!_willRaiseEvent)
{
ProcessReceive(receiver);
}
}
}
else
{
this.CloseClientSocket((receiver as SocketAsyncEventArgsImpl).UID, true);
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnReceive(object sender, SocketAsyncEventArgs e)
{
string msg = Encoding.Unicode.GetString(e.Buffer, 0, e.BytesTransferred);
SocketRequestMessage _msgs = SocketRequestHandler.GetActualString(msg);
ListenAsync();
if (OnMsgReceived != null)
{
OnMsgReceived(_msgs);
}
}
/// <summary>
/// 开始监听线程的入口函数
/// </summary>
public string Listen(Socket socket = null)
{
if (socket == null)
{
socket = (_readWirted.ReceiveSAEA.UserToken as Socket);
}
byte[] _bytes = new byte[1024];
StringBuilder _sb = new StringBuilder();
int flag = socket.Receive(_bytes, 0, _bytes.Length, SocketFlags.None);
string _msg = Encoding.Unicode.GetString(_bytes);
_sb.Append(_msg);
SocketRequestMessage _rquestMsg = SocketRequestHandler.GetActualString(_msg);
//如果没有接收到定长的数据，循环接收
while (flag != _rquestMsg.MessageLength)
{
flag += socket.Receive(_bytes, flag, _bytes.Length - flag, SocketFlags.None);
_sb.Append(Encoding.Unicode.GetString(_bytes));
}
return(_sb.ToString());
}
public static SocketRequestMessage GetActualString(string input, List <string> outputList = null)
{
if (outputList == null)
{
outputList = new List <string>();
}
if (!string.IsNullOrEmpty(temp))
{
input = temp + input;
}
string output = "";
string lenStr = @"(?<=^\[length=)(\d+)(?=\])";
string pattern = @"(\[MSG=)(JSON|XML|NONE|REQUEST)(?=\])";
int length = 0;
SocketMessageInfoType _type = CheckMessageInfoType(input);
if (Regex.IsMatch(input, lenStr))
{
Match lenRex = Regex.Match(input, lenStr);
length = Convert.ToInt32(lenRex.Groups[0].Value);
if (Regex.IsMatch(input, pattern))
{
Match m = Regex.Match(input, pattern);
int startIndex = input.IndexOf(m.Groups[0].Value + "]") + m.Groups[0].Value.Length + 1;
output = input.Substring(startIndex);
if (output.Length == length)
{
outputList.Add(output);
temp = "";
}
else if (output.Length < length)
{
temp = input;
}
else if (output.Length > length)
{
output = output.Substring(0, length);
outputList.Add(output);
temp = "";
input = input.Substring(startIndex + length);
GetActualString(input, outputList);
}
}
}
else
{
temp = input;
}
SocketRequestMessage message = new SocketRequestMessage()
{
MessageLength = length,
MessageType = _type,
Messages = outputList.ToArray()
};
return(message);
}
