artdaq  v3_04_00
Autodetect_transfer.cc
1 #define TRACE_NAME (app_name + "_AutodetectTransfer").c_str()
2 #include "artdaq/DAQdata/Globals.hh"
3 
4 #include "artdaq/TransferPlugins/TransferInterface.hh"
5 #include "artdaq/TransferPlugins/TCPSocketTransfer.hh"
6 #include "artdaq/TransferPlugins/ShmemTransfer.hh"
7 
8 namespace artdaq
9 {
17  {
18  public:
24  AutodetectTransfer(const fhicl::ParameterSet& pset, Role role);
25 
29  virtual ~AutodetectTransfer() = default;
30 
37  int receiveFragment(artdaq::Fragment& fragment,
38  size_t receiveTimeout) override
39  {
40  return theTransfer_->receiveFragment(fragment, receiveTimeout);
41  }
42 
49  int receiveFragmentHeader(detail::RawFragmentHeader& header, size_t receiveTimeout) override
50  {
51  return theTransfer_->receiveFragmentHeader(header, receiveTimeout);
52  }
53 
60  int receiveFragmentData(RawDataType* destination, size_t wordCount) override
61  {
62  return theTransfer_->receiveFragmentData(destination, wordCount);
63  }
64 
71  CopyStatus transfer_fragment_min_blocking_mode(artdaq::Fragment const& fragment, size_t send_timeout_usec) override
72  {
73  return theTransfer_->transfer_fragment_min_blocking_mode(fragment, send_timeout_usec);
74  }
75 
81  CopyStatus transfer_fragment_reliable_mode(artdaq::Fragment&& fragment) override
82  {
83  return theTransfer_->transfer_fragment_reliable_mode(std::move(fragment));
84  }
85 
90  bool isRunning() override { return theTransfer_->isRunning(); }
91 
96  void flush_buffers() override { theTransfer_->flush_buffers(); }
97 
98  private:
99  std::unique_ptr<TransferInterface> theTransfer_;
100  };
101 }
102 
103 artdaq::AutodetectTransfer::AutodetectTransfer(const fhicl::ParameterSet& pset, Role role)
104  : TransferInterface(pset, role)
105 {
106  TLOG(TLVL_INFO) << GetTraceName() << ": Begin AutodetectTransfer constructor" ;
107  auto hosts = MakeHostMap(pset);
108 
109  TLOG(TLVL_DEBUG) << GetTraceName() << ": srcHost=" << hosts[source_rank()] << ", destHost=" << hosts[destination_rank()];
110  if (hosts[source_rank()] == hosts[destination_rank()])
111  {
112  TLOG(TLVL_INFO) << GetTraceName() << ": Constructing ShmemTransfer" ;
113  theTransfer_.reset(new ShmemTransfer(pset, role));
114  }
115  else
116  {
117  TLOG(TLVL_INFO) << GetTraceName() << ": Constructing TCPSocketTransfer" ;
118  theTransfer_.reset(new TCPSocketTransfer(pset, role));
119  }
120 }
121 
122 DEFINE_ARTDAQ_TRANSFER(artdaq::AutodetectTransfer)
bool isRunning() override
Determine whether the TransferInterface plugin is able to send/receive data.
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.
hostMap_t MakeHostMap(fhicl::ParameterSet pset, hostMap_t map=hostMap_t())
Make a hostMap_t from a HostMap::Config ParameterSet
Definition: HostMap.hh:66
virtual ~AutodetectTransfer()=default
AutodetectTransfer default Destructor.
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.
CopyStatus transfer_fragment_reliable_mode(artdaq::Fragment &&fragment) override
Send a Fragment in reliable mode, using the underlying transfer plugin.
Role
Used to determine if a TransferInterface is a Sender or Receiver.
CopyStatus transfer_fragment_min_blocking_mode(artdaq::Fragment const &fragment, size_t send_timeout_usec) override
Send a Fragment in non-reliable mode, using the underlying transfer plugin.
void flush_buffers() override
Flush any in-flight data. This should be used by the receiver after the receive loop has ended...
int receiveFragmentData(RawDataType *destination, size_t wordCount) override
Receive the body of a Fragment to the given destination pointer.
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.
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.