RNTupleUtil.hxx File Reference

#include <cstdint>
#include <string>
#include <ROOT/RLogger.hxx>

Include dependency graph for RNTupleUtil.hxx:

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Classes
class	ROOT::Experimental::RClusterIndex
	Addresses a column element or field item relative to a particular cluster, instead of a global NTupleSize_t index. More...
struct	ROOT::Experimental::RClusterSize
	Wrap the 32bit integer in a struct in order to avoid template specialization clash with std::uint32_t. More...
class	ROOT::Experimental::RColumnSwitch
	Holds the index and the tag of a kSwitch column. More...
struct	ROOT::Experimental::RNTupleLocator
	Generic information about the physical location of data. More...
class	ROOT::Experimental::RNTupleVersion
	For forward and backward compatibility, attach version information to the consitituents of the file format (column, field, cluster, ntuple). More...

Namespaces
namespace	ROOT
	tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tbb::task_arena without forward declaring tbb::interface7
namespace	ROOT::Experimental
namespace	ROOT::Experimental::Internal
namespace	ROOT::Experimental::Internal::RNTupleSerialization
	Machine-independent serialization functions for fundamental types.

Typedefs
using	ROOT::Experimental::ClusterSize_t = RClusterSize
using	ROOT::Experimental::ColumnId_t = std::int64_t
	Uniquely identifies a physical column within the scope of the current process, used to tag pages.
using	ROOT::Experimental::DescriptorId_t = std::uint64_t
	Distriniguishes elements of the same type within a descriptor, e.g. different fields.
using	ROOT::Experimental::NTupleFlags_t = std::uint64_t
	64 possible flags to apply to all versioned entities (so far unused).
using	ROOT::Experimental::NTupleSize_t = std::uint64_t
	Integer type long enough to hold the maximum number of entries in a column.
using	ROOT::Experimental::RNTupleUuid = std::string
	Every NTuple is identified by a UUID. TODO(jblomer): should this be a TUUID?

Enumerations
enum	ROOT::Experimental::ENTupleStructure {   ROOT::Experimental::kLeaf , ROOT::Experimental::kCollection , ROOT::Experimental::kRecord , ROOT::Experimental::kVariant ,   ROOT::Experimental::kReference , ROOT::Experimental::kInvalid }
	The fields in the ntuple model tree can carry different structural information about the type system. More...

Functions
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeInt16 (const void *buffer, std::int16_t *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeInt32 (const void *buffer, std::int32_t *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeInt64 (const void *buffer, std::int64_t *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeString (const void *buffer, std::string *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeUInt16 (const void *buffer, std::uint16_t *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeUInt32 (const void *buffer, std::uint32_t *val)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::DeserializeUInt64 (const void *buffer, std::uint64_t *val)
constexpr ClusterSize_t	ROOT::Experimental::kInvalidClusterIndex (std::uint32_t(-1))
RLogChannel &	ROOT::Experimental::NTupleLog ()
	Log channel for RNTuple diagnostics.
void	ROOT::Experimental::Internal::PrintRNTuple (const RNTuple &ntuple, std::ostream &output)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeInt16 (std::int16_t val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeInt32 (std::int32_t val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeInt64 (std::int64_t val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeString (const std::string &val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeUInt16 (std::uint16_t val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeUInt32 (std::uint32_t val, void *buffer)
std::uint32_t	ROOT::Experimental::Internal::RNTupleSerialization::SerializeUInt64 (std::uint64_t val, void *buffer)

Variables
constexpr ColumnId_t	ROOT::Experimental::kInvalidColumnId = -1
constexpr DescriptorId_t	ROOT::Experimental::kInvalidDescriptorId = std::uint64_t(-1)
constexpr NTupleSize_t	ROOT::Experimental::kInvalidNTupleIndex = std::uint64_t(-1)

Detailed Description

Author

Jakob Blomer jblom.nosp@m.er@c.nosp@m.ern.c.nosp@m.h

Date

2018-10-04

Warning

This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!

Definition in file RNTupleUtil.hxx.