artdaq  v3_12_02
TransferInterface.cc
1 #define TRACE_NAME (app_name + "_TransferInterface").c_str()
2 #include "artdaq/DAQdata/Globals.hh"
3 
4 #include "artdaq/TransferPlugins/TransferInterface.hh"
5 
6 #include "fhiclcpp/ParameterSet.h"
7 
8 #include "cetlib_except/exception.h"
9 
10 #include <string>
11 
12 artdaq::TransferInterface::TransferInterface(const fhicl::ParameterSet& ps, Role role)
13  : role_(role)
14  , source_rank_(ps.get<int>("source_rank", my_rank))
15  , destination_rank_(ps.get<int>("destination_rank", my_rank))
16  , unique_label_(ps.get<std::string>("unique_label", "transfer_between_" + std::to_string(source_rank_) + "_and_" + std::to_string(destination_rank_)))
17  , buffer_count_(ps.get<size_t>("buffer_count", 10))
18  , max_fragment_size_words_(ps.get<size_t>("max_fragment_size_words", 1024))
19 {
20  TLOG(TLVL_DEBUG + 32) << GetTraceName() << " TransferInterface constructor has "
21  << ps.to_string();
22 }
23 
24 int artdaq::TransferInterface::receiveFragment(artdaq::Fragment& frag, size_t receive_timeout)
25 {
26  auto ret = static_cast<int>(RECV_TIMEOUT);
27 
28  TLOG(TLVL_DEBUG + 33) << GetTraceName() << "Receiving Fragment Header from rank " << source_rank();
29  ret = receiveFragmentHeader(*reinterpret_cast<detail::RawFragmentHeader*>(frag.headerAddress()), receive_timeout); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
30 
31  TLOG(TLVL_DEBUG + 33) << GetTraceName() << "Done receiving Header, ret is " << ret << ", should be " << source_rank();
32  if (ret < RECV_SUCCESS)
33  {
34  return ret;
35  }
36 
37  frag.autoResize();
38 
39  TLOG(TLVL_DEBUG + 33) << GetTraceName() << "Receiving Fragment Body from rank " << source_rank();
40  auto bodyret = receiveFragmentData(frag.headerAddress() + detail::RawFragmentHeader::num_words(), frag.sizeBytes() - detail::RawFragmentHeader::num_words() * sizeof(RawDataType)); // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
41  TLOG(TLVL_DEBUG + 33) << GetTraceName() << "Done receiving Body, ret is " << bodyret << ", should be " << source_rank();
42 
43  if (bodyret != ret)
44  {
45  throw cet::exception("TransferInterface") << "Got different return codes from receiveFragmentHeader and receiveFragmentData!"; // NOLINT(cert-err60-cpp)
46  }
47 
48  return ret;
49 }
Role
Used to determine if a TransferInterface is a Sender or Receiver.
TransferInterface(const fhicl::ParameterSet &ps, Role role)
TransferInterface Constructor.
virtual int receiveFragment(artdaq::Fragment &fragment, size_t receive_timeout)
Receive a Fragment from the transport mechanism.