System.Net.Security.SslState.StartReceiveBlob C# (CSharp) Method

        private void StartReceiveBlob(byte[] buffer, AsyncProtocolRequest asyncRequest)
        {
            if (_pendingReHandshake)
            {
                if (CheckEnqueueHandshakeRead(ref buffer, asyncRequest))
                {
                    return;
                }

                if (!_pendingReHandshake)
                {
                    // Renegotiate: proceed to the next step.
                    ProcessReceivedBlob(buffer, buffer.Length, asyncRequest);
                    return;
                }
            }

            //This is first server read.
            buffer = EnsureBufferSize(buffer, 0, SecureChannel.ReadHeaderSize);

            int readBytes = 0;
            if (asyncRequest == null)
            {
                readBytes = _reader.ReadPacket(buffer, 0, SecureChannel.ReadHeaderSize);
            }
            else
            {
                asyncRequest.SetNextRequest(buffer, 0, SecureChannel.ReadHeaderSize, s_partialFrameCallback);
                _reader.AsyncReadPacket(asyncRequest);
                if (!asyncRequest.MustCompleteSynchronously)
                {
                    return;
                }

                readBytes = asyncRequest.Result;
            }

            StartReadFrame(buffer, readBytes, asyncRequest);
        }