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File indexing completed on 2022-11-24 00:02:22

0001 #ifndef HeterogeneousCore_AlpakaCore_interface_alpaka_ESGetToken_h
0002 #define HeterogeneousCore_AlpakaCore_interface_alpaka_ESGetToken_h
0003 
0004 #include "FWCore/Utilities/interface/ESGetToken.h"
0005 #include "HeterogeneousCore/AlpakaCore/interface/alpaka/ESDeviceProduct.h"
0006 #include "HeterogeneousCore/AlpakaInterface/interface/config.h"
0007 
0008 namespace ALPAKA_ACCELERATOR_NAMESPACE::device {
0009   class EventSetup;
0010   template <typename T>
0011   class Record;
0012 
0013   /**
0014    * The device::ESGetToken is similar to edm::ESGetToken, but is
0015    * intended for EventSetup data products in the device memory space
0016    * defined by the backend (i.e. ALPAKA_ACCELERATOR_NAMESPACE). It
0017    * can be used only to get data from a device::EventSetup and
0018    * device::Record<T>.
0019    */
0020   template <typename ESProduct, typename ESRecord>
0021   class ESGetToken {
0022   public:
0023     constexpr ESGetToken() noexcept = default;
0024 
0025     template <typename TAdapter>
0026     constexpr ESGetToken(TAdapter&& iAdapter) : token_(std::forward<TAdapter>(iAdapter)) {}
0027 
0028   private:
0029     friend class EventSetup;
0030     template <typename T>
0031     friend class Record;
0032 
0033     auto const& underlyingToken() const { return token_; }
0034 
0035     edm::ESGetToken<ESDeviceProduct<ESProduct>, ESRecord> token_;
0036   };
0037 }  // namespace ALPAKA_ACCELERATOR_NAMESPACE::device
0038 
0039 #endif