raw-parser.cxx

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#include "Framework/WorkflowSpec.h"
#include "Framework/DataProcessorSpec.h"
#include "Framework/DataSpecUtils.h"
#include "Framework/ControlService.h"
#include "Framework/Logger.h"
#include "Framework/ConfigParamSpec.h"
#include "DPLUtils/DPLRawParser.h"
#include "Headers/DataHeader.h"
#include "Headers/DataHeaderHelpers.h"
#include <vector>
#include <sstream>
 
using namespace o2::framework;
 
// we need to add workflow options before including Framework/runDataProcessing
void customize(std::vector<ConfigParamSpec>& workflowOptions)
{
  workflowOptions.push_back(
    ConfigParamSpec{
      "input-spec", VariantType::String, "A:FLP/RAWDATA", {"selection string input specs"}});
}
 
#include "Framework/runDataProcessing.h"
 
WorkflowSpec defineDataProcessing(ConfigContext const& config)
{
  WorkflowSpec workflow;
  workflow.emplace_back(DataProcessorSpec{
    "raw-parser",
    select(config.options().get<std::string>("input-spec").c_str()),
    Outputs{},
    AlgorithmSpec{[](InitContext& setup) {
        auto loglevel = setup.options().get<int>("log-level");
        return adaptStateless([loglevel](InputRecord& inputs, DataAllocator& outputs) {
          DPLRawParser parser(inputs);
          o2::header::DataHeader const* lastDataHeader = nullptr;
          std::stringstream rdhprintout;
          for (auto it = parser.begin(), end = parser.end(); it != end; ++it) {
            // retrieving RDH v4
            auto const* rdh = it.get_if<o2::header::RAWDataHeaderV4>();
            // retrieving the raw pointer of the page
            auto const* raw = it.raw();
            // retrieving payload pointer of the page
            auto const* payload = it.data();
            // size of payload
            size_t payloadSize = it.size();
            // offset of payload in the raw page
            size_t offset = it.offset();
 
            // Note: the following code is only for printing out raw page information
            const auto* dh = it.o2DataHeader();
            if (loglevel > 0) {
              if (dh != lastDataHeader) {
                if (!rdhprintout.str().empty()) {
                  LOG(info) << rdhprintout.str();
                  rdhprintout.str(std::string());
                }
                // print the DataHeader information only for the first part or if we have high verbosity
                if (loglevel > 1 || dh->splitPayloadIndex == 0) {
                  rdhprintout << fmt::format("DH: {}/{}/{}", dh->dataOrigin, dh->dataDescription, dh->subSpecification) << "  "
                              << " TF " << dh->tfCounter << " firstOrbit " << dh->firstTForbit << " Run " << dh->runNumber << " |";
 
                  // at high verbosity print part number, otherwise only the total number of parts
                  if (loglevel > 1) {
                    rdhprintout << " part " + std::to_string(dh->splitPayloadIndex) + " of " + std::to_string(dh->splitPayloadParts);
                  } else {
                    rdhprintout << " " + std::to_string(dh->splitPayloadParts) + " part(s)";
                  }
                  rdhprintout << " payload size " << dh->payloadSize;
 
                  const auto* dph = it.o2DataProcessingHeader();
                  if (dph) {
                    rdhprintout << " | DPH: "
                                << " Start " << dph->startTime << " dT " << dph->duration << " Creation " << dph->creation;
                  }
                  rdhprintout << std::endl;
                }
                rdhprintout << DPLRawParser<>::RDHInfo(it) << std::endl;
              }
              rdhprintout << it << "  payload size " << it.size() << std::endl;
            }
            lastDataHeader = dh;
          }
          if (loglevel > 0) {
            LOG(info) << rdhprintout.str();
          }
        }); }},
    Options{
      {"log-level", VariantType::Int, 1, {"Logging level [0-2]"}}}});
  return workflow;
}