private void StartSend()
{
if (_closed)
{
return;
}
try
{
lock (_packages)
{
if (_sending || !_connected)
{
return;
}
if (_packages.Count > 0)
{
_sending = true;
byte[] bytes = _packages.First.Value;
_packages.RemoveFirst();
var e = new RelayEventArgs(bytes, 0, bytes.Length);
_relay.onInbound(e);
_remote.BeginSend(e.Buffer, e.Offset, e.Length, 0, new AsyncCallback(remoteSendCallback), null);
Delay();
}
}
}
catch (Exception e)
{
_relay.onError(new RelayErrorEventArgs(e));
this.Close();
}
}
private void PipeConnectionReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _local.EndReceive(ar);
if (bytesRead > 0)
{
var e = new RelayEventArgs(connetionRecvBuffer, 0, bytesRead);
_relay.onInbound(e);
_remote.BeginSend(e.Buffer, e.Offset, e.Length, 0, new AsyncCallback(PipeRemoteSendCallback), null);
}
else
{
this.Close();
}
}
catch (Exception e)
{
_relay.onError(new RelayErrorEventArgs(e));
this.Close();
}
}
private void PipeRemoteReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _remote.EndReceive(ar);
if (bytesRead > 0)
{
_relay.onInbound(bytesRead);
_local.BeginSend(remoteRecvBuffer, 0, bytesRead, 0, new AsyncCallback(PipeConnectionSendCallback), null);
}
else
{
this.Close();
}
}
catch (Exception e)
{
Logging.LogUsefulException(e);
this.Close();
}
}
private void PipeConnectionReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _local.EndReceive(ar);
if (bytesRead > 0)
{
var e = new RelayEventArgs(connetionRecvBuffer, 0, bytesRead);
_relay.onInbound(e);
_relay.onWriteLog(new WriteLogEventArgs($"{_id}: 发送 {bytesRead} 字节到 {_remoteEP} ...\r\n"));
_remoteTime = Environment.TickCount;
_remote.BeginSend(e.Buffer, e.Offset, e.Length, 0, new AsyncCallback(PipeRemoteSendCallback), null);
}
else
{
this.Close();
}
}
catch (Exception e)
{
_relay.onError(new RelayErrorEventArgs(e));
this.Close();
}
}
private void remoteReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _remote.EndReceive(ar);
resetExpireTime();
Logging.Debug($"recv {bytesRead} bytes from {_remoteEP}");
if (bytesRead > 0)
{
_relay.onInbound(bytesRead);
Logging.Debug($"send {bytesRead} bytes to {_localEP}");
_local.BeginSendTo(remoteRecvBuffer, 0, bytesRead, 0, _localEP, new AsyncCallback(localSendCallback), null);
}
else
{
this.Close();
}
}
catch (Exception e)
{
Logging.LogUsefulException(e);
this.Close();
}
}
private void remoteReceiveCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
int bytesRead = _remote.EndReceive(ar);
if (bytesRead > 0)
{
_relay.onInbound(bytesRead);
_local.BeginSendTo(remoteRecvBuffer, 0, bytesRead, 0, _localEP, new AsyncCallback(localSendCallback), null);
Delay();
}
else
{
this.Close();
}
Delay();
}
catch (Exception e)
{
_relay.onError(e);
this.Close();
}
}