DAQEthHeader.hxx

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namespace dunedaq::detdataformats {
 
static_assert(std::endian::native == std::endian::little,
              "The DAQEthHeader bitfield layout assumes little-endian architecture");
 
static_assert(std::is_trivially_copyable_v<DAQEthHeader>,
              "DAQEthHeader isn't trivially copyable and can't be safely std::memcpy'd");
static_assert(std::is_standard_layout_v<DAQEthHeader>,
              "DAQEthHeader isn't standard layout; reinterpret_cast and offsetof can't safely be used with it");
 
static_assert(sizeof(DAQEthHeader) == 16, "DAQEthHeader not the expected size");
static_assert(offsetof(DAQEthHeader, timestamp) == 8, "timestamp field not at expected offset");
 
inline std::ostream&
operator<<(std::ostream& o, DAQEthHeader const& h)
{
  return o << "Version:" << static_cast<unsigned>(h.version) << " DetID:" << static_cast<unsigned>(h.det_id)
           << " CrateID:" << static_cast<unsigned>(h.crate_id) << " SlotID:" << static_cast<unsigned>(h.slot_id)
           << " StreamID:" << static_cast<unsigned>(h.stream_id) << " SequenceID: " << static_cast<unsigned>(h.seq_id)
           << " Block length: " << static_cast<unsigned>(h.block_length) << " Timestamp: " << h.get_timestamp() << '\n';
}
 
} // namespace dunedaq::detdataformats