public Task <Response> Send(Request request)
{
if (_sendQueue.IsAddingCompleted)
{
return(Task.FromCanceled <Response>(CancellationToken.None));
}
var resultTask = RequestTasks.NewRequest(request);
if (_sendQueue.TryAdd(request))
{
return(resultTask);
}
RequestTasks.GetRequestTask(request.RequestId);
return(Task.FromCanceled <Response>(CancellationToken.None));
}
private void Start()
{
_sendTask = Task.Factory.StartNew(() =>
{
while (!_isClosed && !_sendQueue.IsAddingCompleted)
{
Request request = null;
try
{
request = _sendQueue.Take();
Codec.EncodeRequest(request, _rwStream);
_rwStream.Flush();
LastWriteTime = DateTime.UtcNow;
}
catch (Exception ex)
{
switch (ex)
{
case IOException _:
case ObjectDisposedException _:
RequestTask task;
if (request != null && (task = RequestTasks.GetRequestTask(request.RequestId)) != null)
{
task.Task.TrySetException(new RemotingException($"message can not send, because connection is closed . address:{_host}:{_port.ToString()}", ex));
}
Reconect();
log.Warn("An error happend when send message", ex);
break;
case InvalidOperationException _:
log.Warn("the connection has been closed", ex);
break;
}
}
}
while (_sendQueue.TryTake(out var request))
{
var task = RequestTasks.GetRequestTask(request.RequestId);
task?.Task.TrySetException(new RemotingException($"message can not send, because connection is closed . address:{_host}:{_port.ToString()}"));
}
}, TaskCreationOptions.LongRunning);
_receiveTask = Task.Factory.StartNew(() =>
{
while (!_isClosed)
{
try
{
var response = Codec.DecodeResponse(_rwStream);
if (response.IsEvent)
{
log.Debug("Receive HeartBeat Response");
}
LastReadTime = DateTime.UtcNow;
}
catch (Exception ex)
{
if (ex is IOException || ex is ObjectDisposedException)
{
if (_isClosed)
{
return;
}
Reconect();
}
log.Warn("An error happend when receive message", ex);
}
}
}, TaskCreationOptions.LongRunning);
}