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fdreadoutmodules - Readout plugin collection for the far detector

Collection of readout specializations.

Modules provided

fdreadoutmodules provides several DAQModules that are listed here:

  • FDDataHandlerModule: Abstraction for one link of the DAQ. It receives input from a frontend as raw data and buffers it in memory. Data can be retrieved through a request/response mechanism (requests are of the type DataRequest and the response is a Fragment). Additionaly, data can be recorded for a specified amount of time and written to disk through a high performance mechanism. The module can handle different frontends and some support additional features.

  • FDFakeCardReaderModule: This module emulates a frontend that pushes raw data to a FDDataHandlerModule by reading raw data from a file and repeating it over and over, while updating the timestamps of the data. A slowdown factor can be set to run at a lower speed which makes it possible to run the whole DAQ on less powerful systems.

  • DataRecorderModule: Receives data from an input queue and writes it to disk. It supports writing with O_DIRECT, making it more performant in some scenarios.

  • FragmentConsumer: Consumes fragments and does some sanity checks of the data (for now just for WIB data) like checking the timestamps of the data against the requested window.

  • ErroredFrameConsumer: Consumes error frames, this module is used as long as there is no other consumer for this information.

  • TimeSyncConsumer: Consumes timesync messages (and nothing more). Can be used in the standalone readout app.

Last git commit to the markdown source of this page:

Author: John Freeman

Date: Tue Jul 16 08:45:08 2024 -0500

If you see a problem with the documentation on this page, please file an Issue at https://github.com/DUNE-DAQ/fdreadoutmodules/issues