artdaq  v3_09_01
transfer_plugin_receiver.cc
1 #include "artdaq/TransferPlugins/TransferInterface.hh"
2 
3 #include "artdaq-core/Data/Fragment.hh"
4 #include "artdaq-core/Utilities/ExceptionHandler.hh"
5 
6 #include "cetlib/BasicPluginFactory.h"
7 #include "cetlib/filepath_maker.h"
8 #include "cetlib_except/exception.h"
9 #include "fhiclcpp/ParameterSet.h"
10 #include "fhiclcpp/make_ParameterSet.h"
11 
12 #include <boost/asio.hpp>
13 
14 #include <iostream>
15 #include <limits>
16 #include <string>
17 
18 // DUPLICATED CODE: also found in transfer_plugin_sender.cpp. Not as egregious as
19 // normal in that this function is unlikely to be changed, and this is
20 // a standalone app (not part of artdaq)
21 
22 fhicl::ParameterSet ReadParameterSet(const std::string& fhicl_filename)
23 {
24  if (std::getenv("FHICL_FILE_PATH") == nullptr)
25  {
26  std::cerr
27  << "INFO: environment variable FHICL_FILE_PATH was not set. Using \".\"\n";
28  setenv("FHICL_FILE_PATH", ".", 0);
29  }
30 
31  fhicl::ParameterSet pset;
32  cet::filepath_lookup_after1 lookup_policy("FHICL_FILE_PATH");
33  fhicl::make_ParameterSet(fhicl_filename, lookup_policy, pset);
34 
35  return pset;
36 }
37 
38 int do_check(const artdaq::Fragment& frag);
39 
40 int main(int argc, char* argv[])
41 try
42 {
43  if (argc != 2)
44  {
45  std::cerr << "Usage: transfer_plugin_receiver <fhicl document>" << std::endl;
46  return 1;
47  }
48 
49  auto fhicl_filename = boost::lexical_cast<std::string>(argv[1]); // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
50 
51  std::unique_ptr<artdaq::TransferInterface> transfer;
52  auto pset = ReadParameterSet(fhicl_filename);
53 
54  try
55  {
56  static cet::BasicPluginFactory bpf("transfer", "make");
57 
58  transfer =
59  bpf.makePlugin<std::unique_ptr<artdaq::TransferInterface>,
60  const fhicl::ParameterSet&,
62  pset.get<std::string>("transfer_plugin_type"),
63  pset,
65  }
66  catch (...)
67  {
68  artdaq::ExceptionHandler(artdaq::ExceptionHandlerRethrow::no,
69  "Error creating transfer plugin");
70  return 1;
71  }
72 
73  while (true)
74  {
75  artdaq::Fragment myfrag;
76  size_t timeout = 10000000;
77 
78  auto retval = transfer->receiveFragment(myfrag, timeout);
79 
81  {
82  std::cout << "Returned from call to transfer_->receiveFragmentFrom; fragment with seqID == " << myfrag.sequenceID() << ", fragID == " << myfrag.fragmentID() << " has size " << myfrag.sizeBytes() << " bytes" << std::endl;
83  }
84  else
85  {
86  std::cerr << "RECV_TIMEOUT received from call to transfer->receiveFragmentFrom" << std::endl;
87  continue;
88  }
89 
90  if (do_check(myfrag) != 0)
91  {
92  std::cerr << "Error: do_check indicates fragment failed to transmit correctly" << std::endl;
93  }
94  else
95  {
96  std::cerr << "Success: do_check indicates fragment transmitted correctly" << std::endl;
97  }
98  }
99 
100  return 0;
101 }
102 catch (...)
103 {
104  return -1;
105 }
106 
107 // JCF, Jun-22-2016
108 
109 // do_check assumes std::iota was used to fill the sent fragment with
110 // monotonically incrementing 64-bit unsigned integers
111 
112 int do_check(const artdaq::Fragment& frag)
113 {
114  uint64_t variable_to_compare = 0;
115 
116  for (auto ptr_into_frag = reinterpret_cast<const uint64_t*>(frag.dataBeginBytes()); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
117  ptr_into_frag != reinterpret_cast<const uint64_t*>(frag.dataEndBytes()); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
118  ++ptr_into_frag, ++variable_to_compare)
119  {
120  if (variable_to_compare != *ptr_into_frag)
121  {
122  std::cerr << "ERROR for fragment with sequence ID " << frag.sequenceID() << ", fragment ID " << frag.fragmentID() << ": expected ADC value of " << variable_to_compare << ", got " << *ptr_into_frag << std::endl;
123  return 1;
124  }
125  }
126 
127  return 0;
128 }
This TransferInterface is a Receiver.
Role
Used to determine if a TransferInterface is a Sender or Receiver.
For code clarity, things checking for successful receive should check retval &gt;= NO_RANK_INFO.