#include <CDataFormatItem.h> class CDataFormatItem : public CRingItem { public: CDataFormatItem(); virtual ~CDataFormatItem(); CDataFormatItem(const CDataFormatItem& rhs); CDataFormatItem(const CRingItem& rhs) ; virtual uint16_t getMajor() const; virtual uint16_t getMinor() const; virtual std::string typeName() const; virtual std::string toString() const; virtual void* getBodyHeader() const; virtual void setBodyHeader(uint64_t timestamp, uint32_t sourceId, uint32_t barrierType = 0); };
THe data format ring item was introduced beginning in NSCLDAQ-11. It provides information about the version (and therefore the format) of NSCLDAQ that generated the stream of ring items that follow.
CDataFormatItem();
The constructor fills in the item with the major and minor vesions that define the data format.
const virtual uint16_t getMajor ();
Returns the major version of the data format. In practice, this is sufficient to establish the data format.
const virtual uint16_t getMinor();
Returns the minor version of the data format. In practice this is seldom necessary.
const virtual std::string typeName();
Return the string: Ring Item format version
const virtual std::string toString();
Returns a human readable string that describes the contents of the ring item.
const virtual void* getBodyHeader();
Returns nullptr since these items never have a body header.
virtual void setBodyHeader(uint64_t timestamp, uint32_t sourceId, uint32_t barrierType = 0);
No-op since these items don't have body headers.