DAPHNEEthStreamTypeAdapter.hpp

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#ifndef FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHSTREAMTYPEADAPTER_
#define FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHSTREAMTYPEADAPTER_
 
#include "daqdataformats/FragmentHeader.hpp"
#include "daqdataformats/SourceID.hpp"
#include "fddetdataformats/DAPHNEEthStreamFrame.hpp"
 
namespace dunedaq::fdreadoutlibs::types {

const constexpr std::size_t kDAPHNEEthStreamNumFrames = 1;
const constexpr std::size_t kDAPHNEEthStreamSize =
  kDAPHNEEthStreamNumFrames * sizeof(dunedaq::fddetdataformats::DAPHNEEthStreamFrame);
 
struct DAPHNEEthStreamTypeAdapter
{
 
  using FrameType = dunedaq::fddetdataformats::DAPHNEEthStreamFrame;
 
  char data[kDAPHNEEthStreamSize];
 
  // comparable based on first timestamp
  bool operator<(const DAPHNEEthStreamTypeAdapter& other) const
  {
    auto thisptr = reinterpret_cast<const FrameType*>(&data);        // NOLINT
    auto otherptr = reinterpret_cast<const FrameType*>(&other.data); // NOLINT
    return thisptr->get_timestamp() < otherptr->get_timestamp() ? true : false;
  }
 
  uint64_t get_timestamp() const
  {                                                                    // NOLINT(build/unsigned)
    return reinterpret_cast<const FrameType*>(&data)->get_timestamp(); // NOLINT
  }
 
  void set_timestamp(uint64_t ts) // NOLINT(build/unsigned)
  {
    auto frame = reinterpret_cast<FrameType*>(&data); // NOLINT
    frame->set_timestamp(ts);
  }
 
  void fake_timestamps(uint64_t first_timestamp, uint64_t offset = 280) // NOLINT(build/unsigned)
  {
    uint64_t ts_next = first_timestamp; // NOLINT(build/unsigned)
    for (unsigned int i = 0; i < get_num_frames(); ++i) {
      auto df = reinterpret_cast<FrameType*>((reinterpret_cast<uint8_t*>(&data)) + i * get_frame_size());
      df->set_timestamp(ts_next);
      ts_next += offset;
    }
  }
 
  void fake_geoid(uint16_t crate_id, uint16_t slot_id, uint16_t stream_id)
  {
    for (unsigned int i = 0; i < get_num_frames(); ++i) {
      auto df = reinterpret_cast<FrameType*>((reinterpret_cast<uint8_t*>(&data)) + i * get_frame_size());
      df->daq_header.crate_id = crate_id;
      df->daq_header.slot_id = slot_id;
      df->daq_header.stream_id = stream_id;
    }
  }
 
  void fake_adc_pattern(int channel)
  {
    // Set the ADC for the first sample to the 14-bit max value
    auto frame = reinterpret_cast<FrameType*>(&data); // NOLINT
    frame->set_adc(0, channel, 0x3FFF);
  }
 
  void fake_frame_errors(std::vector<uint16_t>* /*fake_errors*/) // NOLINT
  {
    // Set frame error bits in header
  }
 
  FrameType* begin()
  {
    return reinterpret_cast<FrameType*>(&data[0]); // NOLINT
  }
 
  FrameType* end()
  {
    return reinterpret_cast<FrameType*>(data + kDAPHNEEthStreamSize); // NOLINT
  }
 
  constexpr size_t get_payload_size() const { return kDAPHNEEthStreamSize; }
 
  constexpr size_t get_num_frames() const { return kDAPHNEEthStreamNumFrames; }
 
  constexpr size_t get_frame_size() const { return sizeof(dunedaq::fddetdataformats::DAPHNEEthStreamFrame); }
 
  static const constexpr daqdataformats::SourceID::Subsystem subsystem =
    daqdataformats::SourceID::Subsystem::kDetectorReadout;
  static const constexpr daqdataformats::FragmentType fragment_type = daqdataformats::FragmentType::kDAPHNEEthStream;
  static const constexpr uint64_t expected_tick_difference = 280; // NOLINT(build/unsigned)
};
 
static_assert(sizeof(struct DAPHNEEthStreamTypeAdapter) == kDAPHNEEthStreamSize,
              "Check your assumptions on DAPHNEEthStreamTypeAdapter");
 
} // namespace dunedaq::fdreadoutlibs::types
 
#endif // FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHSTREAMTYPEADAPTER_