1 #include "artdaq-core/Core/SimpleMemoryReader.hh"
18 std::istringstream ins(argv[1]);
25 catch (std::string
const& msg)
27 std::cerr <<
"SimpleMemoryReaderApp failed: "
40 , expectedEventCount_(eec)
42 TLOG_ARB(50,
"SimpleMemoryReader") <<
"ctor done (after queue_.setReaderIsReady())" << TLOG_ENDL;
47 std::size_t eventsSeen = 0;
48 auto doPrint = getenv(
"VERBOSE_QUEUE_READING");
51 bool keep_looping =
true;
52 bool got_event =
false;
56 got_event = incoming_events_->ReadyForRead();
59 TLOG_INFO(
"SharedMemoryReader")
60 <<
"InputFailure: Reading timed out in SharedMemoryReader::readNext()" << TLOG_ENDL;
65 if (!got_event)
break;
68 auto evtHeader = incoming_events_->ReadHeader(errflag);
70 auto fragmentTypes = incoming_events_->GetFragmentTypes(errflag);
72 if (fragmentTypes.size() == 0)
74 TLOG_ERROR(
"SharedMemoryReader") <<
"Event has no Fragments! Aborting!" << TLOG_ENDL;
75 incoming_events_->ReleaseBuffer();
78 auto firstFragmentType = *fragmentTypes.begin();
87 TLOG_DEBUG(
"SharedMemoryReader") <<
"Received shutdown message, returning false" << TLOG_ENDL;
88 incoming_events_->ReleaseBuffer();
94 if (doPrint) { std::cout << evt << std::endl; }
95 incoming_events_->ReleaseBuffer();
98 if (expectedEventCount_ && eventsSeen != expectedEventCount_)
100 std::ostringstream os;
101 os <<
"Wrong number of events in SimpleMemoryReader ("
102 << eventsSeen <<
" != " << expectedEventCount_ <<
").\n";
void run()
Run until a null pointer is popped off of the RawEventQueue. Throws an excpetion if expectedEventCoun...
SimpleMemoryReader(uint32_t shm_key, uint32_t broadcast_key, std::size_t expectedEventCount=0)
Constructs a SimpleMemoryReader.
static constexpr type_t EndOfDataFragmentType
Copy EndOfDataFragmentType from RawFragmentHeader.
SharedMemoryEventReceiver can receive events (as written by SharedMemoryEventManager) from Shared Mem...
SimpleMemoryReader will continue to read RawEvent objects off the queue until it encounters a null po...
int SimpleMemoryReaderApp(int argc, char **argv)
An application which pops items off a RawEventQueue using the SimpleMemoryReader. ...
RawEvent is the artdaq view of a generic event, containing a header and zero or more Fragments...