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#ifndef DataFormats_Common_DataFrame_h
#define DataFormats_Common_DataFrame_h
class TestDataFrame;
namespace edm {
class DataFrameContainer;
/* a proxy to a fixed size array of 16bit words belonging to
* a "channel" identified by an 32bit id
*
* FIXME interface to be finalized once use-cases fully identified
*
*/
class DataFrame {
public:
typedef unsigned int size_type; // for persistency
typedef unsigned int id_type;
typedef unsigned short data_type;
typedef data_type *iterator;
typedef data_type const *const_iterator;
constexpr inline DataFrame() : m_id(0), m_data(nullptr), m_size(0) {}
constexpr inline DataFrame(id_type i, data_type const *idata, size_type isize)
: m_id(i), m_data(idata), m_size(isize) {}
inline DataFrame(DataFrameContainer const &icont, size_type i);
inline void set(DataFrameContainer const &icont, size_type i);
constexpr inline data_type &operator[](size_type i) { return data()[i]; }
constexpr inline data_type operator[](size_type i) const { return m_data[i]; }
constexpr inline iterator begin() { return data(); }
constexpr inline iterator end() { return data() + m_size; }
constexpr inline const_iterator begin() const { return m_data; }
constexpr inline const_iterator end() const { return m_data + m_size; }
constexpr inline id_type id() const { return m_id; }
constexpr inline size_type size() const { return m_size; }
private:
//for testing
friend class ::TestDataFrame;
constexpr data_type *data() { return const_cast<data_type *>(m_data); }
id_type m_id;
data_type const *m_data;
size_type m_size;
};
} // namespace edm
#endif // DataFormats_Common_DataFrame_h
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