artdaq  v3_00_03
Autodetect_transfer.cc
1 #include "artdaq/TransferPlugins/TransferInterface.hh"
2 #include "artdaq/TransferPlugins/TCPSocketTransfer.hh"
3 #include "artdaq/TransferPlugins/ShmemTransfer.hh"
4 
5 namespace artdaq
6 {
14  {
15  public:
21  AutodetectTransfer(const fhicl::ParameterSet& pset, Role role);
22 
26  virtual ~AutodetectTransfer() = default;
27 
34  int receiveFragment(artdaq::Fragment& fragment,
35  size_t receiveTimeout) override
36  {
37  return theTransfer_->receiveFragment(fragment, receiveTimeout);
38  }
39 
46  int receiveFragmentHeader(detail::RawFragmentHeader& header, size_t receiveTimeout) override
47  {
48  return theTransfer_->receiveFragmentHeader(header, receiveTimeout);
49  }
50 
57  int receiveFragmentData(RawDataType* destination, size_t wordCount) override
58  {
59  return theTransfer_->receiveFragmentData(destination, wordCount);
60  }
61 
68  CopyStatus copyFragment(artdaq::Fragment& fragment,
69  size_t send_timeout_usec = std::numeric_limits<size_t>::max()) override
70  {
71  return theTransfer_->copyFragment(fragment, send_timeout_usec);
72  }
73 
80  CopyStatus moveFragment(artdaq::Fragment&& fragment,
81  size_t send_timeout_usec = std::numeric_limits<size_t>::max()) override
82  {
83  return theTransfer_->moveFragment(std::move(fragment), send_timeout_usec);
84  }
85 
86  private:
87  std::unique_ptr<TransferInterface> theTransfer_;
88  };
89 }
90 
91 artdaq::AutodetectTransfer::AutodetectTransfer(const fhicl::ParameterSet& pset, Role role)
92  : TransferInterface(pset, role)
93 {
94  TLOG_TRACE("AutodetectTransfer") << uniqueLabel() << " Begin AutodetectTransfer constructor" << TLOG_ENDL;
95  std::string srcHost, destHost;
96  auto hosts = pset.get<std::vector<fhicl::ParameterSet>>("host_map");
97  for (auto& ps : hosts)
98  {
99  auto rank = ps.get<int>("rank", -1);
100  if (rank == source_rank())
101  {
102  srcHost = ps.get<std::string>("host", "localhost");
103  }
104  if (rank == destination_rank())
105  {
106  destHost = ps.get<std::string>("host", "localhost");
107  }
108  }
109  TLOG_TRACE("AutodetectTransfer") << uniqueLabel() << " ADT: srcHost=" << srcHost << ", destHost=" << destHost << TLOG_ENDL;
110  if (srcHost == destHost)
111  {
112  TLOG_TRACE("AutodetectTransfer") << uniqueLabel() << " ADT: Constructing ShmemTransfer" << TLOG_ENDL;
113  theTransfer_.reset(new ShmemTransfer(pset, role));
114  }
115  else
116  {
117  TLOG_TRACE("AutodetectTransfer") << uniqueLabel() << " ADT: Constructing TCPSocketTransfer" << TLOG_ENDL;
118  theTransfer_.reset(new TCPSocketTransfer(pset, role));
119  }
120 }
121 
122 DEFINE_ARTDAQ_TRANSFER(artdaq::AutodetectTransfer)
int receiveFragmentHeader(detail::RawFragmentHeader &header, size_t receiveTimeout) override
Receive a Fragment Header from the transport mechanism.
virtual int source_rank() const
Get the source rank for this TransferInterface instance.
Role role() const
Get the TransferInterface::Role of this TransferInterface.
virtual ~AutodetectTransfer()=default
AutodetectTransfer default Destructor.
CopyStatus copyFragment(artdaq::Fragment &fragment, size_t send_timeout_usec=std::numeric_limits< size_t >::max()) override
Send a Fragment in non-reliable mode, using the underlying transfer plugin.
int receiveFragment(artdaq::Fragment &fragment, size_t receiveTimeout) override
Receive a Fragment, using the underlying transfer plugin.
AutodetectTransfer(const fhicl::ParameterSet &pset, Role role)
AutodetectTransfer Constructor.
Role
Used to determine if a TransferInterface is a Sender or Receiver.
int receiveFragmentData(RawDataType *destination, size_t wordCount) override
Receive the body of a Fragment to the given destination pointer.
std::string uniqueLabel() const
Get the unique label of this TransferInterface instance.
A TransferInterface implementation plugin that transfers data using Shared Memory.
This interface defines the functions used to transfer data between artdaq applications.
virtual int destination_rank() const
Get the destination rank for this TransferInterface instance.
TransferInterface implementation plugin that sends data using TCP sockets.
CopyStatus moveFragment(artdaq::Fragment &&fragment, size_t send_timeout_usec=std::numeric_limits< size_t >::max()) override
Send a Fragment in reliable mode, using the underlying transfer plugin.
The AutodetectTransfer TransferInterface plugin sets up a Shmem_transfer plugin or TCPSocket_transfer...
CopyStatus
Returned from the send functions, this enumeration describes the possible return codes. If an exception occurs, it will be thrown and should be handled normally.