Method StartReadTask

cpp/src/platform/winRT/SerialControllerImpl.cpp:175–219

----------------------------------------------------------------------------- Start a background task which reads available data and passes it along to SerialController -----------------------------------------------------------------------------

// Start a background task which reads available data and passes it along to SerialController
//-----------------------------------------------------------------------------
void SerialControllerImpl::StartReadTask()
{
	// Read serial data on background task
	cancellation_token token = m_readTaskCancelationTokenSource.get_token();

	create_task([token, this]()
	{
		uint32 readBufferLength = 512;
		Buffer ^ buffer = ref new Buffer(readBufferLength);

		for (;;)
		{
			try
			{
				create_task(m_serialDevice->InputStream->ReadAsync(buffer, readBufferLength, InputStreamOptions::None))
					.then([&, this](IBuffer ^ outBuffer)
				{
					if (token.is_canceled()) 
						return;
					auto reader = DataReader::FromBuffer(outBuffer);
					auto bytesRead = reader->UnconsumedBufferLength;

					std::vector<uint8> byteVector(bytesRead);
					if (!byteVector.empty())
					{
						reader->ReadBytes(::Platform::ArrayReference<uint8>(byteVector.data(), bytesRead));
						m_owner->Put(byteVector.data(), bytesRead);
					}
				}).wait();
			}
			catch (Platform::Exception^ ex)
			{
				if (ex->HResult == HRESULT_FROM_WIN32(ERROR_OPERATION_ABORTED))
				{
					m_owner->Close();
				}
			}

			if (token.is_canceled())
			{
				cancel_current_task();
			}
		}
	}, token);
}

//-----------------------------------------------------------------------------
// <SerialControllerImpl::Write>