/// <summary>
/// 触发异常事件
/// </summary>
/// <param name="state"></param>
private void RaiseOtherException(AsyncUDPState state, string descrip)
{
if (OtherException != null)
{
OtherException(this, new AsyncUDPEventArgs(descrip, state));
}
}
/// <summary>
/// 触发数据发送完毕的事件
/// </summary>
/// <param name="state"></param>
private void RaiseCompletedSend(AsyncUDPState state)
{
if (CompletedSend != null)
{
CompletedSend(this, new AsyncUDPEventArgs(state));
}
}
/// <summary>
/// 触发网络错误事件
/// </summary>
/// <param name="state"></param>
private void RaiseNetError(AsyncUDPState state)
{
if (NetError != null)
{
NetError(this, new AsyncUDPEventArgs(state));
}
}
/// <summary>
/// 触发发送数据前的事件
/// </summary>
/// <param name="state"></param>
private void RaisePrepareSend(AsyncUDPState state)
{
if (PrepareSend != null)
{
PrepareSend(this, new AsyncUDPEventArgs(state));
}
}
private void RaiseDataReceived(AsyncUDPState state)
{
if (DataReceived != null)
{
DataReceived(this, new AsyncUDPEventArgs(state));
}
}
/// <summary>
/// 接收数据的方法
/// </summary>
/// <param name="ar"></param>
private void ReceiveDataAsync(IAsyncResult ar)
{
IPEndPoint remote = null;
byte[] buffer = null;
try
{
buffer = _server.EndReceive(ar, ref remote);
AsyncUDPState aus = new AsyncUDPState();
aus.buffer = buffer;
aus.remote = remote;
//触发数据收到事件
RaiseDataReceived(aus);
}
catch (Exception ex)
{
//TODO 处理异常
RaiseOtherException(new AsyncUDPState(), ex.ToString());
}
finally
{
if (IsRunning && _server != null)
{
_server.BeginReceive(ReceiveDataAsync, null);
}
}
}
/// <summary>
/// 关闭一个与客户端之间的会话
/// </summary>
/// <param name="state">需要关闭的客户端会话对象</param>
public void Close(AsyncUDPState state)
{
if (state != null)
{
//_clients.Remove(state);
//_clientCount--;
//TODO 触发关闭事件
}
}
private void RaiseOtherException(AsyncUDPState state)
{
RaiseOtherException(state, "");
}
public AsyncUDPEventArgs(string msg, AsyncUDPState state)
{
this._msg = msg;
this._state = state;
IsHandled = false;
}
public AsyncUDPEventArgs(AsyncUDPState state)
{
this._state = state;
IsHandled = false;
}
