SubsystemPacket.cxx

 
#include "Packing/RawDataFile/SubsystemPacket.h"
 
#include "Packing/Utility/Mask.h"
 
namespace packing {
namespace rawdatafile {
 
SubsystemPacket::SubsystemPacket(uint32_t event, uint16_t id,
                                 std::vector<uint32_t> data)
    : event_{event}, id_{id}, data_{data} {
  crc_ok_ = true;
 
  utility::CRC crc;
  crc << data_;
 
  crc_ = crc.get();
}
 
std::vector<uint32_t> SubsystemPacket::header() const {
  uint32_t word = ((id_ & utility::mask<16>) << 16) +
                  ((data_.size() & utility::mask<15>) << 1) + crc_ok_;
  return {word, event_};
}
 
std::vector<uint32_t> SubsystemPacket::tail() const { return {crc_}; }
 
utility::Reader& SubsystemPacket::read(utility::Reader& r) {
  uint32_t word;
  r >> word;
 
  id_ = (word >> 16) & utility::mask<16>;
  uint32_t len = (word >> 1) & utility::mask<15>;
  crc_ok_ = word & utility::mask<1>;
 
  r >> event_;
 
  r.read(data_, len);
 
  r >> crc_;
 
  return r;
}
 
utility::Writer& SubsystemPacket::write(utility::Writer& w) const {
  std::vector<uint32_t> head{header()}, t{tail()};
  w << head << data_ << t;
  return w;
}
 
utility::CRC& SubsystemPacket::add(utility::CRC& c) const {
  std::vector<uint32_t> head{header()}, t{tail()};
  c << head << data_ << t;
  return c;
}
 
}  // namespace rawdatafile
}  // namespace packing