private void OnReceiveCompleted(object sender, SocketAsyncEventArgs e)
{
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
byte[] buffer = new byte[e.BytesTransferred];
Array.Copy(e.Buffer, e.Offset, buffer, 0, buffer.Length);
Array.Clear(e.Buffer, 0, e.Buffer.Length);
OnReceiveBase(buffer);
lock (lockRef)
{
if (m_socket != null)
{
if (!m_socket.ReceiveAsync(e))
{
OnReceiveCompleted(null, e);
}
}
}
}
else
{
if (e.SocketError == SocketError.ConnectionReset)
{
State = ClientExState.Disconnected;
if (m_autoReConnect && connectOnce)
{
m_Connect();
}
}
}
}
private void OnConnectCompleted(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
args.SetBuffer(new Byte[Int16.MaxValue], 0, Int16.MaxValue);
args.Completed += OnReceiveCompleted;
lock (lockRef)
{
if (!m_socket.ReceiveAsync(args))
{
OnReceiveCompleted(null, args);
}
}
State = ClientExState.Connected;
OnStateChange?.Invoke(0, "連線成功");
}
else if (e.SocketError != SocketError.ConnectionAborted)
{
State = ClientExState.Disconnected;
OnStateChange?.Invoke(1, e.SocketError.ToString());
if (m_autoReConnect && connectOnce)
{
// 自動5秒重連
Timer timer = new Timer((state) => m_Connect(), null, 5000, -1);
}
}
}
private void OnSendCompleted(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
OnSendBase((byte[])e.UserToken);
}
else if (e.SocketError == SocketError.ConnectionReset)
{
State = ClientExState.Disconnected;
if (m_autoReConnect && connectOnce)
{
m_Connect();
}
}
}
private void m_Connect()
{
if (m_socket != null)
{
lock (lockRef)
{
m_socket.Close(); m_socket.Dispose(); m_socket = null;
}
}
m_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
State = ClientExState.Connecting;
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
args.RemoteEndPoint = m_endPoint;
args.Completed += OnConnectCompleted;
lock (lockRef)
{
// 如果是false，表示已同步執行連線作業完成，不會觸發Completed事件
if (!m_socket.ConnectAsync(args))
{
OnConnectCompleted(null, args);
}
}
}
