1 #define TRACE_NAME "SimpleMemoryReader"
2 #include "artdaq-core/Core/SimpleMemoryReader.hh"
19 std::istringstream ins(argv[1]);
26 catch (std::string
const& msg)
28 std::cerr <<
"SimpleMemoryReaderApp failed: " << msg;
40 , expectedEventCount_(eec)
42 TLOG(50) <<
"ctor done (after queue_.setReaderIsReady())" ;
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(TLVL_INFO) <<
"InputFailure: Reading timed out in SharedMemoryReader::readNext()" ;
64 if (!got_event)
break;
67 auto evtHeader = incoming_events_->ReadHeader(errflag);
69 auto fragmentTypes = incoming_events_->GetFragmentTypes(errflag);
71 if (fragmentTypes.size() == 0)
73 TLOG(TLVL_ERROR) <<
"Event has no Fragments! Aborting!" ;
74 incoming_events_->ReleaseBuffer();
77 auto firstFragmentType = *fragmentTypes.begin();
86 TLOG(TLVL_DEBUG) <<
"Received shutdown message, returning false" ;
87 incoming_events_->ReleaseBuffer();
93 if (doPrint) { std::cout << evt << std::endl; }
94 incoming_events_->ReleaseBuffer();
97 if (expectedEventCount_ && eventsSeen != expectedEventCount_)
99 std::ostringstream os;
100 os <<
"Wrong number of events in SimpleMemoryReader ("
101 << 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...