1 #ifndef mu2e_artdaq_core_Overlays_DTCFragmentWriter_hh
2 #define mu2e_artdaq_core_Overlays_DTCFragmentWriter_hh
17 #include "artdaq-core/Data/Fragment.hh"
18 #include "mu2e-artdaq-core/Overlays/DTCFragment.hh"
23 class DTCFragmentWriter;
34 packet_t *dataBegin();
42 assert(artdaq_Fragment_.dataSize() >= words_to_frag_words_(Header::size_words));
43 return reinterpret_cast<Header *
>(&*artdaq_Fragment_.dataBegin());
46 void set_hdr_timestamp(Header::timestamp_t timestamp) { header_()->timestamp = timestamp; }
48 void resize(
size_t nPackets);
50 size_t size() {
return artdaq_Fragment_.size(); }
53 size_t calc_event_size_words_(
size_t nPackets);
55 static size_t packets_to_words_(
size_t nPackets);
56 static size_t words_to_frag_words_(
size_t nWords);
59 artdaq::Fragment &artdaq_Fragment_;
66 mu2e::DTCFragmentWriter::DTCFragmentWriter(artdaq::Fragment &f)
74 assert(
sizeof(Metadata::data_t) ==
sizeof(Header::data_t));
76 if (artdaq_Fragment_.size() !=
77 artdaq::detail::RawFragmentHeader::num_words() + words_to_frag_words_(Metadata::size_words)) {
78 std::cerr <<
"artdaq_Fragment size: " << artdaq_Fragment_.size() << std::endl;
79 std::cerr <<
"Expected size: "
80 << artdaq::detail::RawFragmentHeader::num_words() + words_to_frag_words_(Metadata::size_words)
84 "DTCFragmentWriter: Raw artdaq::Fragment object size suggests it does not consist of its own header + the "
85 "DTCFragment::Metadata object");
89 artdaq_Fragment_.resize(words_to_frag_words_(Header::size_words));
92 inline mu2e::packet_t *mu2e::DTCFragmentWriter::dataBegin()
94 assert(artdaq_Fragment_.dataSize() > words_to_frag_words_(Header::size_words));
95 return reinterpret_cast<packet_t *
>(header_() + 1);
98 inline mu2e::packet_t *mu2e::DTCFragmentWriter::dataEnd() {
return dataBegin() + hdr_packet_count(); }
100 inline void mu2e::DTCFragmentWriter::resize(
size_t nPackets)
102 auto es(calc_event_size_words_(nPackets));
103 artdaq_Fragment_.resize(words_to_frag_words_(es));
104 header_()->event_size = nPackets;
107 inline size_t mu2e::DTCFragmentWriter::calc_event_size_words_(
size_t nPackets)
109 return packets_to_words_(nPackets) + hdr_size_words();
112 inline size_t mu2e::DTCFragmentWriter::packets_to_words_(
size_t nPackets) {
return nPackets * words_per_packet_(); }
114 inline size_t mu2e::DTCFragmentWriter::words_to_frag_words_(
size_t nWords)
116 size_t mod = nWords % words_per_frag_word_();
117 return mod ? nWords / words_per_frag_word_() + 1 : nWords / words_per_frag_word_();