DAPHNEEthTypeAdapter.hpp

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#ifndef FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHTYPEADAPTER_
#define FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHTYPEADAPTER_
 
#include "daqdataformats/FragmentHeader.hpp"
#include "daqdataformats/SourceID.hpp"
#include "fddetdataformats/DAPHNEEthFrame.hpp"
 
#include <cstdint> // uint_t types
#include <cstring> // memcpy
#include <memory>  // unique_ptr
#include <tuple>   // tie
#include <vector>
 
namespace dunedaq {
namespace fdreadoutlibs {
namespace types {

const constexpr std::size_t kDAPHNEEthSize = 1864;
 
struct DAPHNEEthTypeAdapter
{
  using FrameType = dunedaq::fddetdataformats::DAPHNEEthFrame;
  char data[kDAPHNEEthSize];
 
  bool operator<(const DAPHNEEthTypeAdapter& other) const
  {
    auto thisptr = reinterpret_cast<const dunedaq::fddetdataformats::DAPHNEEthFrame*>(&data);        // NOLINT
    auto otherptr = reinterpret_cast<const dunedaq::fddetdataformats::DAPHNEEthFrame*>(&other.data); // NOLINT
 
    return std::forward_as_tuple(thisptr->get_timestamp(), thisptr->get_channel()) <
           std::forward_as_tuple(otherptr->get_timestamp(), otherptr->get_channel());
  }
 
  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*/ = 2048) // NOLINT(build/unsigned)
  {
    auto wef = reinterpret_cast<FrameType*>(((uint8_t*)(&data))); // NOLINT
    wef->set_timestamp(first_timestamp);
  }
 
  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_frame_errors(std::vector<uint16_t>* /*fake_errors*/) // NOLINT
  {
    // Set error bits in header
  }
 
  void fake_adc_pattern(int /*channel*/) {}
 
  FrameType* begin()
  {
    return reinterpret_cast<FrameType*>(&data[0]); // NOLINT
  }
 
  FrameType* end()
  {
    return reinterpret_cast<FrameType*>(data + kDAPHNEEthSize); // NOLINT
  }
 
  size_t get_payload_size() { return kDAPHNEEthSize; }
 
  size_t get_num_frames() { return 1; }
 
  size_t get_frame_size() { return kDAPHNEEthSize; }
 
  static const constexpr daqdataformats::SourceID::Subsystem subsystem =
    daqdataformats::SourceID::Subsystem::kDetectorReadout;
  static const constexpr daqdataformats::FragmentType fragment_type = daqdataformats::FragmentType::kDAPHNEEth;
  static const constexpr uint64_t expected_tick_difference = 1024; // NOLINT(build/unsigned)
};
 
static_assert(sizeof(dunedaq::fddetdataformats::DAPHNEEthFrame) == kDAPHNEEthSize,
              "Check your assumptions on DAPHNEEthEthTypeAdapter");
 
} // namespace types
} // namespace fdreadoutlibs
} // namespace dunedaq
 
#endif /* FDREADOUTLIBS_INCLUDE_FDREADOUTLIBS_DAPHNEETHTYPEADAPTER_ */