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RNTupleMerger.cxx File Reference
RNTuple-related classes
#include <ROOT/RError.hxx>
#include <ROOT/RNTuple.hxx>
#include <ROOT/RNTupleDescriptor.hxx>
#include <ROOT/RNTupleMerger.hxx>
#include <ROOT/RNTupleModel.hxx>
#include <ROOT/RNTupleUtil.hxx>
#include <ROOT/RPageAllocator.hxx>
#include <ROOT/RPageStorageFile.hxx>
#include <ROOT/RPageStorage.hxx>
#include <ROOT/RClusterPool.hxx>
#include <ROOT/RNTupleSerialize.hxx>
#include <ROOT/RNTupleZip.hxx>
#include <ROOT/RColumnElementBase.hxx>
#include <TROOT.h>
#include <TFileMergeInfo.h>
#include <TError.h>
#include <TFile.h>
#include <TKey.h>
#include <algorithm>
#include <deque>
#include <inttypes.h>
#include <initializer_list>
#include <unordered_map>
#include <vector>
Include dependency graph for RNTupleMerger.cxx:

Classes

struct  ROOT::Experimental::Internal::RColumnMergeInfo
 
struct  ROOT::Experimental::Internal::RNTupleMergeData
 
struct  ROOT::Experimental::Internal::RSealedPageMergeData
 

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
 

Macros

#define SKIP_OR_ABORT(errMsg)
 

Functions

static void AddColumnsFromField (std::vector< RColumnMergeInfo > &columns, const ROOT::RNTupleDescriptor &srcDesc, RNTupleMergeData &mergeData, const ROOT::RFieldDescriptor &srcFieldDesc, const ROOT::RFieldDescriptor &dstFieldDesc, const std::string &prefix="")
 
static bool BeginsWithDelimitedWord (const TString &str, const char *word)
 
static std::optional< std::type_index > ColumnInMemoryType (std::string_view fieldType, ENTupleColumnType onDiskType)
 
static ROOT::RResult< RDescriptorsComparison > CompareDescriptorStructure (const ROOT::RNTupleDescriptor &dst, const ROOT::RNTupleDescriptor &src)
 Compares the top level fields of dst and src and determines whether they can be merged or not.
 
static void ExtendDestinationModel (std::span< const ROOT::RFieldDescriptor * > newFields, ROOT::RNTupleModel &dstModel, RNTupleMergeData &mergeData, std::vector< RCommonField > &commonFields)
 
static RColumnInfoGroup GatherColumnInfos (const RDescriptorsComparison &descCmp, const ROOT::RNTupleDescriptor &srcDesc, RNTupleMergeData &mergeData)
 
static void GenerateZeroPagesForColumns (size_t nEntriesToGenerate, std::span< const RColumnMergeInfo > columns, RSealedPageMergeData &sealedPageData, ROOT::Internal::RPageAllocator &pageAlloc, const ROOT::RNTupleDescriptor &srcDescriptor, const ROOT::RNTupleDescriptor &dstDescriptor, const RNTupleMergeData &mergeData)
 
static bool IsSplitOrUnsplitVersionOf (ENTupleColumnType a, ENTupleColumnType b)
 
std::ostream & ROOT::Experimental::Internal::operator<< (std::ostream &os, const std::optional< ROOT::RColumnDescriptor::RValueRange > &x)
 
static std::optional< ENTupleMergeErrBehavior > ParseOptionErrBehavior (const TString &opts)
 
static std::optional< ENTupleMergingMode > ParseOptionMergingMode (const TString &opts)
 
template<typename T >
static std::optional< T > ParseStringOption (const TString &opts, const char *pattern, std::initializer_list< std::pair< const char *, T > > validValues)
 
static void PrefillColumnMap (const ROOT::RNTupleDescriptor &desc, const ROOT::RFieldDescriptor &fieldDesc, ColumnIdMap_t &colIdMap, const std::string &prefix="")
 

Detailed Description

Author
Jakob Blomer jblom.nosp@m.er@c.nosp@m.ern.c.nosp@m.h, Max Orok maxwe.nosp@m.llor.nosp@m.ok@gm.nosp@m.ail..nosp@m.com, Alaettin Serhan Mete amete.nosp@m.@anl.nosp@m..gov, Giacomo Parolini giaco.nosp@m.mo.p.nosp@m.aroli.nosp@m.ni@c.nosp@m.ern.c.nosp@m.h
Date
2020-07-08
Warning
This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!

Definition in file RNTupleMerger.cxx.

Macro Definition Documentation

◆ SKIP_OR_ABORT

#define SKIP_OR_ABORT ( errMsg)
Value:
do { \
if (mergeOpts.fErrBehavior == ENTupleMergeErrBehavior::kSkip) { \
Warning("RNTuple::Merge", "Skipping RNTuple due to: %s", (errMsg).c_str()); \
continue; \
} else { \
return R__FAIL(errMsg); \
} \
} while (0)
R__FAIL
#define R__FAIL(msg)
Short-hand to return an RResult<T> in an error state; the RError is implicitly converted into RResult...
Definition RError.hxx:299
TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:358

Function Documentation

◆ AddColumnsFromField()

static void AddColumnsFromField ( std::vector< RColumnMergeInfo > & columns,
const ROOT::RNTupleDescriptor & srcDesc,
RNTupleMergeData & mergeData,
const ROOT::RFieldDescriptor & srcFieldDesc,
const ROOT::RFieldDescriptor & dstFieldDesc,
const std::string & prefix = "" )
static

Definition at line 918 of file RNTupleMerger.cxx.

◆ BeginsWithDelimitedWord()

static bool BeginsWithDelimitedWord ( const TString & str,
const char * word )
static

Definition at line 58 of file RNTupleMerger.cxx.

◆ ColumnInMemoryType()

static std::optional< std::type_index > ColumnInMemoryType ( std::string_view fieldType,
ENTupleColumnType onDiskType )
static

Definition at line 883 of file RNTupleMerger.cxx.

◆ CompareDescriptorStructure()

static ROOT::RResult< RDescriptorsComparison > CompareDescriptorStructure ( const ROOT::RNTupleDescriptor & dst,
const ROOT::RNTupleDescriptor & src )
static

Compares the top level fields of dst and src and determines whether they can be merged or not.

In addition, returns the differences between dst and src's structures

Definition at line 388 of file RNTupleMerger.cxx.

◆ ExtendDestinationModel()

static void ExtendDestinationModel ( std::span< const ROOT::RFieldDescriptor * > newFields,
ROOT::RNTupleModel & dstModel,
RNTupleMergeData & mergeData,
std::vector< RCommonField > & commonFields )
static

Definition at line 551 of file RNTupleMerger.cxx.

◆ GatherColumnInfos()

static RColumnInfoGroup GatherColumnInfos ( const RDescriptorsComparison & descCmp,
const ROOT::RNTupleDescriptor & srcDesc,
RNTupleMergeData & mergeData )
static

Definition at line 993 of file RNTupleMerger.cxx.

◆ GenerateZeroPagesForColumns()

static void GenerateZeroPagesForColumns ( size_t nEntriesToGenerate,
std::span< const RColumnMergeInfo > columns,
RSealedPageMergeData & sealedPageData,
ROOT::Internal::RPageAllocator & pageAlloc,
const ROOT::RNTupleDescriptor & srcDescriptor,
const ROOT::RNTupleDescriptor & dstDescriptor,
const RNTupleMergeData & mergeData )
static

Definition at line 612 of file RNTupleMerger.cxx.

◆ IsSplitOrUnsplitVersionOf()

static bool IsSplitOrUnsplitVersionOf ( ENTupleColumnType a,
ENTupleColumnType b )
static

Definition at line 358 of file RNTupleMerger.cxx.

◆ ParseOptionErrBehavior()

static std::optional< ENTupleMergeErrBehavior > ParseOptionErrBehavior ( const TString & opts)
static

Definition at line 96 of file RNTupleMerger.cxx.

◆ ParseOptionMergingMode()

static std::optional< ENTupleMergingMode > ParseOptionMergingMode ( const TString & opts)
static

Definition at line 86 of file RNTupleMerger.cxx.

◆ ParseStringOption()

template<typename T >
static std::optional< T > ParseStringOption ( const TString & opts,
const char * pattern,
std::initializer_list< std::pair< const char *, T > > validValues )
static

Definition at line 69 of file RNTupleMerger.cxx.

◆ PrefillColumnMap()

static void PrefillColumnMap ( const ROOT::RNTupleDescriptor & desc,
const ROOT::RFieldDescriptor & fieldDesc,
ColumnIdMap_t & colIdMap,
const std::string & prefix = "" )
static

Definition at line 1012 of file RNTupleMerger.cxx.