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#ifndef HeterogeneousCore_AlpakaCore_interface_alpaka_EDMetadataSentry_h
#define HeterogeneousCore_AlpakaCore_interface_alpaka_EDMetadataSentry_h
#include "FWCore/Utilities/interface/StreamID.h"
#include "HeterogeneousCore/AlpakaCore/interface/alpaka/EDMetadata.h"
namespace ALPAKA_ACCELERATOR_NAMESPACE {
namespace detail {
/**
* Helper class to be used in produce()
*
* TODO: not really a sentry as it doesn't do anything special in its destructor. Better name?
*/
class EDMetadataSentry {
public:
// For normal module
EDMetadataSentry(edm::StreamID stream, bool synchronize);
// For ExternalWork-module's produce()
EDMetadataSentry(std::shared_ptr<EDMetadata> metadata, bool synchronize)
: metadata_(std::move(metadata)), synchronize_(synchronize) {}
EDMetadataSentry(EDMetadataSentry const&) = delete;
EDMetadataSentry& operator=(EDMetadataSentry const&) = delete;
EDMetadataSentry(EDMetadataSentry&&) = delete;
EDMetadataSentry& operator=(EDMetadataSentry&&) = delete;
std::shared_ptr<EDMetadata> metadata() { return metadata_; }
// true if asynchronous work was (possibly) launched
void finish(bool launchedAsyncWork);
private:
std::shared_ptr<EDMetadata> metadata_;
bool const synchronize_;
};
} // namespace detail
} // namespace ALPAKA_ACCELERATOR_NAMESPACE
#endif
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