Line data    Source code

       1              : /**
       2              :  * @file SourceModel.hpp FELIX CR's ELink concept wrapper
       3              :  *
       4              :  * This is part of the DUNE DAQ , copyright 2020.
       5              :  * Licensing/copyright details are in the COPYING file that you should have
       6              :  * received with this code.
       7              :  */
       8              : #ifndef CRTMODULES_SRC_SOURCEMODEL_HPP_
       9              : #define CRTMODULES_SRC_SOURCEMODEL_HPP_
      10              : 
      11              : #include "SourceConcept.hpp"
      12              : 
      13              : 
      14              : #include "iomanager/IOManager.hpp"
      15              : #include "iomanager/Sender.hpp"
      16              : #include "logging/Logging.hpp"
      17              : 
      18              : #include "crtmodules/opmon/SourceModel.pb.h"
      19              : 
      20              : // #include "datahandlinglibs/utils/ReusableThread.hpp"
      21              : #include "datahandlinglibs/DataMoveCallbackRegistry.hpp"
      22              : #include "datahandlinglibs/utils/BufferCopy.hpp" 
      23              : 
      24              : // #include <folly/ProducerConsumerQueue.h>
      25              : // #include <nlohmann/json.hpp>
      26              : 
      27              : #include <atomic>
      28              : #include <memory>
      29              : #include <mutex>
      30              : #include <string>
      31              : 
      32              : 
      33              : namespace dunedaq::crtmodules {
      34              : 
      35              : template<class TargetPayloadType>
      36              : class SourceModel : public SourceConcept
      37              : {
      38              : public:
      39              :   using sink_t = iomanager::SenderConcept<TargetPayloadType>;
      40              :   using inherited = SourceConcept;
      41              :   using data_t = nlohmann::json;
      42              : 
      43              :   /**
      44              :    * @brief Buffer size based on TargetPayloadType
      45              :    */
      46              :   static constexpr auto buffer_size = sizeof(TargetPayloadType);
      47              : 
      48              :   /**
      49              :    * @brief SourceModel Constructor
      50              :    * @param name Instance name for this SourceModel instance
      51              :    */
      52            0 :   SourceModel()
      53            0 :     : SourceConcept()
      54            0 :   {}
      55            0 :   ~SourceModel() {}
      56              : 
      57            0 :   void acquire_callback() override
      58              :   {
      59            0 :       if (m_callback_is_acquired) {
      60            0 :         TLOG_DEBUG(5) << "SourceModel callback is already acquired!";
      61              :       } else {
      62              :         // Getting DataMoveCBRegistry
      63            0 :         auto dmcbr = datahandlinglibs::DataMoveCallbackRegistry::get();
      64            0 :         m_sink_callback = dmcbr->get_callback<TargetPayloadType>(inherited::m_sink_conf);
      65            0 :         m_callback_is_acquired = true;
      66            0 :       }
      67            0 :   }
      68              : 
      69            0 :   bool handle_payload(char* message, std::size_t size) // NOLINT(build/unsigned)
      70              :   {
      71            0 :     bool push_out = true;
      72              :     if (push_out) {
      73              : 
      74            0 :       TargetPayloadType& target_payload = *reinterpret_cast<TargetPayloadType*>(message);
      75            0 :         (*m_sink_callback)(std::move(target_payload));
      76              : 
      77              :     } else {
      78              :       TargetPayloadType target_payload;
      79              :       uint32_t bytes_copied = 0;
      80              :       datahandlinglibs::buffer_copy(message, size, static_cast<void*>(&target_payload), bytes_copied, sizeof(target_payload));
      81              :     }
      82              : 
      83            0 :     return true;
      84              :   }
      85              : 
      86            0 :   std::size_t get_frame_size() const override {
      87              :     TargetPayloadType target_payload; 
      88            0 :     return target_payload.get_frame_size(); // TODO (DTE): Could be a static function?
      89              :   }
      90              :     
      91            0 :   void generate_opmon_data() override {
      92              : 
      93            0 :     opmon::SourceInfo info;
      94            0 :     info.set_dropped_frames( m_dropped_packets.load() ); 
      95              : 
      96            0 :     publish( std::move(info) );
      97            0 :   }
      98              :   
      99              : private:
     100              :   // Callback internals
     101              :   bool m_callback_is_acquired{ false };
     102              :   using sink_cb_t = std::shared_ptr<std::function<void(TargetPayloadType&&)>>;
     103              :   sink_cb_t m_sink_callback;
     104              : 
     105              :   std::atomic<uint64_t> m_dropped_packets{0};
     106              : 
     107              : };
     108              : 
     109              : } // namespace dunedaq::crtmodules
     110              : 
     111              : #endif // CRTMODULES_SRC_SOURCEMODEL_HPP_