DoocsBackendTimeStampAccessor.h

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#pragma once
 
#include "DoocsBackendRegisterAccessor.h"
 
#include <ChimeraTK/SupportedUserTypes.h>
 
#include <doocs/EqCall.h>
 
#include <type_traits>
 
namespace ChimeraTK {
 
  template<typename UserType>
  class DoocsBackendTimeStampRegisterAccessor : public DoocsBackendRegisterAccessor<UserType> {
   public:
    ~DoocsBackendTimeStampRegisterAccessor() override;
 
   protected:
    DoocsBackendTimeStampRegisterAccessor(boost::shared_ptr<DoocsBackend> backend, const std::string& path,
        const std::string& registerPathName, AccessModeFlags flags);
 
    void doPostRead(TransferType type, bool hasNewData) override;
 
    bool isReadOnly() const override { return true; }
 
    bool isReadable() const override { return true; }
 
    bool isWriteable() const override { return false; }
 
    bool doWriteTransfer(VersionNumber /*versionNumber = {}*/) override {
      // do not throw again, already done in doPreWrite...
      return false;
    }
 
    friend class DoocsBackend;
  };
 
  /**********************************************************************************************************************/
 
  template<typename UserType>
  DoocsBackendTimeStampRegisterAccessor<UserType>::DoocsBackendTimeStampRegisterAccessor(
      boost::shared_ptr<DoocsBackend> backend, const std::string& path, const std::string& registerPathName,
      AccessModeFlags flags)
  : DoocsBackendRegisterAccessor<UserType>(backend, path, registerPathName, 1, 0, flags) {}
 
  /**********************************************************************************************************************/
 
  template<typename UserType>
  DoocsBackendTimeStampRegisterAccessor<UserType>::~DoocsBackendTimeStampRegisterAccessor() {
    this->shutdown();
  }
 
  /**********************************************************************************************************************/
 
  template<typename UserType>
  void DoocsBackendTimeStampRegisterAccessor<UserType>::doPostRead(TransferType type, bool hasNewData) {
    DoocsBackendRegisterAccessor<UserType>::doPostRead(type, hasNewData);
    if(!hasNewData) return;
 
    doocs::EqData d = DoocsBackendRegisterAccessor<UserType>::dst;
    auto timeStamp = d.get_timestamp();
 
    UserType val = numericToUserType<UserType>(timeStamp.get_seconds_since_epoch());
    NDRegisterAccessor<UserType>::buffer_2D[0][0] = val;
  }
 
} // namespace ChimeraTK