internal void Enqueue(StreamHandle handle, byte[] array, int offset, int count, Action <Exception> completion)
{
Contract.Requires(handle != null);
Contract.Requires(array != null && array.Length > 0);
Contract.Requires(offset >= 0 && count > 0);
Contract.Requires((offset + count) <= array.Length);
WriteTask request;
if (!this.requestPool.TryDequeue(out request))
{
request = new WriteTask(this.OnCompleted);
}
request.CompletionAction = completion;
try
{
request.Prepare(array, offset, count);
handle.WriteStream(request);
}
catch (Exception exception)
{
Log.Error($"{nameof(WriteTaskQueue)} {request} write error.", exception);
request.Release();
request.CompletionAction = null;
throw;
}
}
static void OnConnectionCallback(IntPtr handle, int status)
{
var server = RequestContext.GetTarget <StreamHandle>(handle);
if (server == null)
{
return;
}
StreamHandle client = null;
Exception error = null;
try
{
if (status < 0)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
else
{
client = server.NewStream();
NativeMethods.StreamAccept(server.InternalHandle, client.InternalHandle);
}
server.Accept(client, error);
Log.Debug($"{server.GetType().Name} Connection accepted.");
}
catch (Exception exception)
{
Log.Error($"{nameof(StreamHandle)} Failed to accept client connection.", exception);
client?.Dispose();
}
}
internal Pipeline(StreamHandle streamHandle)
{
Contract.Requires(streamHandle != null);
this.streamHandle = streamHandle;
this.readBuffer = new BufferBlock();
this.writeTaskQueue = new WriteTaskQueue();
}
void Accept(StreamHandle client, Exception error)
{
Contract.Requires(client != null);
try
{
client.Pipeline.ReadAction = this.Pipeline.ReadAction;
client.ReadStart();
this.connectionHandler?.Invoke(client, error);
}
catch (Exception exception)
{
Log.Error($"{this.GetType().Name} connection handler invocation failed.", exception);
}
}