visa.hpp

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#ifndef ROHDESCHWARZ_BUSSES_VISA_VISA_HPP
#define ROHDESCHWARZ_BUSSES_VISA_VISA_HPP
 
 
// rohdeschwarz
#include "rohdeschwarz/busses/bus.hpp"
#include "rohdeschwarz/busses/visa/cvisa.hpp"
 
 
// visa
#include "rs-visa/visa.h"
 
 
// std lib
#include <string>
#include <system_error>
 
 
namespace rohdeschwarz::busses::visa
{
 
 
using system_error = std::system_error;
 
 
class Visa : public rohdeschwarz::busses::Bus
{
 
public:
 
  Visa(std::string resource, unsigned int connection_timeout_ms = 2000);
 
  virtual ~Visa();
 
 
  virtual std::string endpoint() const;
 
 
  virtual int timeout_ms() const;
 
 
  virtual bool setTimeout(int timeout_ms);
 
 
  virtual bool readData(unsigned char* buffer, std::size_t bufferSize, std::size_t* readSize = nullptr);
 
 
  virtual bool writeData(const unsigned char* data, std::size_t dataSize, std::size_t* writeSize = nullptr);
 
 
  // attributes
 
  bool attribute(ViAttr name, ViAttrState* value) const;
 
  bool setAttribute(ViAttr name, ViAttrState value);
 
 
  // visa status
 
  ViStatus status() const;
 
  virtual std::string statusMessage() const;
 
  bool isError() const;
 
private:
 
  // visa resource
  std::string _resource;
 
 
  // visa
  CVisa     _visa;
  ViSession _resource_manager;
  ViSession _instrument;
  ViStatus  _status;
 
 
  // resource manager
  bool isResourceManager() const;
  bool openDefaultResourceManager();
  bool closeResourceManager();
 
 
  // instrument
  bool isInstrument() const;
  bool openInstrument(std::string resource, unsigned int timeout_ms);
  bool closeInstrument();
 
 
};  // class Bus
 
 
}       // rohdeschwarz::busses::visa
#endif  // ROHDESCHWARZ_BUSSES_VISA_VISA_HPP