internal virtual IAsyncResult BeginSend(BaseWriter writer, bool sendEnvelope, AsyncCallback callback, object state)
{
this.PrepareHeaders(sendEnvelope);
writer.WriteHeaders(this.Headers);
if (this.Content != null)
{
return(this.Content.BeginSend(writer, callback, state));
}
LazyAsyncResult result = new LazyAsyncResult(this, state, callback);
IAsyncResult result2 = writer.BeginGetContentStream(new AsyncCallback(this.EmptySendCallback), new EmptySendContext(writer, result));
if (result2.CompletedSynchronously)
{
writer.EndGetContentStream(result2).Close();
}
return(result);
}
internal void EmptySendCallback(IAsyncResult result)
{
Exception?e = null;
if (result.CompletedSynchronously)
{
return;
}
EmptySendContext context = (EmptySendContext)result.AsyncState !;
try
{
BaseWriter.EndGetContentStream(result).Close();
}
catch (Exception ex)
{
e = ex;
}
context._result.InvokeCallback(e);
}
internal virtual IAsyncResult BeginSend(BaseWriter writer, bool sendEnvelope, bool allowUnicode,
AsyncCallback callback, object state)
{
PrepareHeaders(sendEnvelope, allowUnicode);
writer.WriteHeaders(Headers, allowUnicode);
if (Content != null)
{
return(Content.BeginSend(writer, callback, allowUnicode, state));
}
else
{
LazyAsyncResult result = new LazyAsyncResult(this, state, callback);
IAsyncResult newResult = writer.BeginGetContentStream(EmptySendCallback, new EmptySendContext(writer, result));
if (newResult.CompletedSynchronously)
{
writer.EndGetContentStream(newResult).Close();
}
return(result);
}
}
