The head node of a RDF computation graph.
This class is responsible of running the event loop.
Definition at line 114 of file RLoopManager.hxx.
Public Member Functions | |
RLoopManager (const RLoopManager &)=delete | |
RLoopManager (RLoopManager &&)=delete | |
RLoopManager (ROOT::RDF::Experimental::RDatasetSpec &&spec) | |
RLoopManager (std::unique_ptr< RDataSource > ds, const ColumnNames_t &defaultBranches) | |
RLoopManager (std::unique_ptr< TTree > tree, const ColumnNames_t &defaultBranches) | |
RLoopManager (TTree *tree, const ColumnNames_t &defaultBranches) | |
RLoopManager (ULong64_t nEmptyEntries) | |
~RLoopManager ()=default | |
void | AddDataSourceColumnReaders (const std::string &col, std::vector< std::unique_ptr< RColumnReaderBase > > &&readers, const std::type_info &ti) |
void | AddFilterName (std::vector< std::string > &) final |
End of recursive chain of calls, does nothing. | |
void | AddSampleCallback (void *nodePtr, ROOT::RDF::SampleCallback_t &&callback) |
RColumnReaderBase * | AddTreeColumnReader (unsigned int slot, const std::string &col, std::unique_ptr< RColumnReaderBase > &&reader, const std::type_info &ti) |
Register a new RTreeColumnReader with this RLoopManager. | |
void | ChangeSpec (ROOT::RDF::Experimental::RDatasetSpec &&spec) |
Changes the internal TTree held by the RLoopManager. | |
bool | CheckFilters (unsigned int, Long64_t) final |
void | Deregister (RDefineBase *definePtr) |
void | Deregister (RDFInternal::RActionBase *actionPtr) |
void | Deregister (RDFInternal::RVariationBase *varPtr) |
void | Deregister (RFilterBase *filterPtr) |
void | Deregister (RRangeBase *rangePtr) |
std::vector< RDFInternal::RActionBase * > | GetAllActions () const |
Return all actions, either booked or already run. | |
const ColumnNames_t & | GetBranchNames () |
Return all valid TTree::Branch names (caching results for subsequent calls). | |
ROOT::Internal::RDF::RStringCache & | GetColumnNamesCache () |
RColumnReaderBase * | GetDatasetColumnReader (unsigned int slot, const std::string &col, const std::type_info &ti) const |
RDataSource * | GetDataSource () const |
const ColumnNames_t & | GetDefaultColumnNames () const |
Return the list of default columns – empty if none was provided when constructing the RDataFrame. | |
::TDirectory * | GetDirectory () const |
std::vector< std::string > | GetFiltersNames () |
For each booked filter, returns either the name or "Unnamed Filter". | |
std::shared_ptr< ROOT::Internal::RDF::GraphDrawing::GraphNode > | GetGraph (std::unordered_map< void *, std::shared_ptr< ROOT::Internal::RDF::GraphDrawing::GraphNode > > &visitedMap) final |
std::vector< RNodeBase * > | GetGraphEdges () const |
Return all graph edges known to RLoopManager This includes Filters and Ranges but not Defines. | |
RLoopManager * | GetLoopManagerUnchecked () final |
ULong64_t | GetNEmptyEntries () const |
unsigned int | GetNRuns () const |
unsigned int | GetNSlots () const |
std::vector< std::string > & | GetSuppressErrorsForMissingBranches () |
const std::vector< std::string > & | GetSuppressErrorsForMissingBranches () const |
TTree * | GetTree () const |
std::set< std::pair< std::string_view, std::unique_ptr< ROOT::Internal::RDF::RDefinesWithReaders > > > & | GetUniqueDefinesWithReaders () |
std::set< std::pair< std::string_view, std::unique_ptr< ROOT::Internal::RDF::RVariationsWithReaders > > > & | GetUniqueVariationsWithReaders () |
bool | HasDataSourceColumnReaders (const std::string &col, const std::type_info &ti) const |
Return true if AddDataSourceColumnReaders was called for column name col. | |
void | IncrChildrenCount () final |
void | Jit () |
Add RDF nodes that require just-in-time compilation to the computation graph. | |
void | JitDeclarations () |
RLoopManager & | operator= (const RLoopManager &)=delete |
RLoopManager & | operator= (RLoopManager &&)=delete |
void | PartialReport (ROOT::RDF::RCutFlowReport &) const final |
End of recursive chain of calls, does nothing. | |
void | Register (RDefineBase *definePtr) |
void | Register (RDFInternal::RActionBase *actionPtr) |
void | Register (RDFInternal::RVariationBase *varPtr) |
void | Register (RFilterBase *filterPtr) |
void | Register (RRangeBase *rangePtr) |
void | RegisterCallback (ULong64_t everyNEvents, std::function< void(unsigned int)> &&f) |
void | Report (ROOT::RDF::RCutFlowReport &rep) const final |
Call FillReport on all booked filters. | |
void | Run (bool jit=true) |
Start the event loop with a different mechanism depending on IMT/no IMT, data source/no data source. | |
void | SetEmptyEntryRange (std::pair< ULong64_t, ULong64_t > &&newRange) |
void | SetTree (std::shared_ptr< TTree > tree) |
void | StopProcessing () final |
void | ToJitExec (const std::string &) const |
Public Member Functions inherited from ROOT::Detail::RDF::RNodeBase | |
RNodeBase (const std::vector< std::string > &variations={}, RLoopManager *lm=nullptr) | |
virtual | ~RNodeBase () |
const std::vector< std::string > & | GetVariations () const |
virtual std::shared_ptr< RNodeBase > | GetVariedFilter (const std::string &) |
Return a clone of this node that acts as a Filter working with values in the variationName "universe". | |
virtual void | ResetChildrenCount () |
Private Types | |
using | ColumnNames_t = std::vector< std::string > |
enum class | ELoopType { kROOTFiles , kROOTFilesMT , kNoFiles , kNoFilesMT , kDataSource , kDataSourceMT } |
Private Member Functions | |
void | CleanUpNodes () |
Perform clean-up operations. To be called at the end of each event loop. | |
void | CleanUpTask (TTreeReader *r, unsigned int slot) |
Perform clean-up operations. To be called at the end of each task execution. | |
void | EvalChildrenCounts () |
Trigger counting of number of children nodes for each node of the functional graph. | |
void | InitNodes () |
Initialize all nodes of the functional graph before running the event loop. | |
void | InitNodeSlots (TTreeReader *r, unsigned int slot) |
Build TTreeReaderValues for all nodes This method loops over all filters, actions and other booked objects and calls their InitSlot method, to get them ready for running a task. | |
void | RunAndCheckFilters (unsigned int slot, Long64_t entry) |
Execute actions and make sure named filters are called for each event. | |
void | RunDataSource () |
Run event loop over data accessed through a DataSource, in sequence. | |
void | RunDataSourceMT () |
Run event loop over data accessed through a DataSource, in parallel. | |
void | RunEmptySource () |
Run event loop with no source files, in sequence. | |
void | RunEmptySourceMT () |
Run event loop with no source files, in parallel. | |
void | RunTreeProcessorMT () |
Run event loop over one or multiple ROOT files, in parallel. | |
void | RunTreeReader () |
Run event loop over one or multiple ROOT files, in sequence. | |
void | SetupSampleCallbacks (TTreeReader *r, unsigned int slot) |
void | UpdateSampleInfo (unsigned int slot, const std::pair< ULong64_t, ULong64_t > &range) |
void | UpdateSampleInfo (unsigned int slot, TTreeReader &r) |
Private Attributes | |
Long64_t | fBeginEntry {0} |
std::vector< RDFInternal::RActionBase * > | fBookedActions |
Non-owning pointers to actions to be run. | |
std::vector< RDefineBase * > | fBookedDefines |
std::vector< RFilterBase * > | fBookedFilters |
std::vector< RFilterBase * > | fBookedNamedFilters |
Contains a subset of fBookedFilters, i.e. only the named filters. | |
std::vector< RRangeBase * > | fBookedRanges |
std::vector< RDFInternal::RVariationBase * > | fBookedVariations |
ROOT::Internal::RDF::RStringCache | fCachedColNames |
std::vector< RDFInternal::RCallback > | fCallbacksEveryNEvents |
Registered callbacks to be executed every N events. | |
std::vector< RDFInternal::ROneTimeCallback > | fCallbacksOnce |
Registered callbacks to invoke just once before running the loop. | |
std::vector< std::unordered_map< std::string, std::unique_ptr< RColumnReaderBase > > > | fDatasetColumnReaders |
Readers for TTree/RDataSource columns (one per slot), shared by all nodes in the computation graph. | |
const std::unique_ptr< RDataSource > | fDataSource |
Owning pointer to a data-source object. | |
const ColumnNames_t | fDefaultColumns |
std::pair< ULong64_t, ULong64_t > | fEmptyEntryRange {} |
Range of entries created when no data source is specified. | |
Long64_t | fEndEntry {std::numeric_limits<Long64_t>::max()} |
std::vector< std::unique_ptr< TChain > > | fFriends |
Friends of the fTree. Only used if we constructed fTree ourselves. | |
const ELoopType | fLoopType |
The kind of event loop that is going to be run (e.g. on ROOT files, on no files) | |
bool | fMustRunNamedFilters {true} |
RDFInternal::RNewSampleNotifier | fNewSampleNotifier |
ROOT::Internal::TreeUtils::RNoCleanupNotifier | fNoCleanupNotifier |
unsigned int | fNRuns {0} |
Number of event loops run. | |
const unsigned int | fNSlots {1} |
std::vector< RDFInternal::RActionBase * > | fRunActions |
Non-owning pointers to actions already run. | |
std::unordered_map< void *, ROOT::RDF::SampleCallback_t > | fSampleCallbacks |
Registered callbacks to call at the beginning of each "data block". | |
std::vector< ROOT::RDF::RSampleInfo > | fSampleInfos |
std::unordered_map< std::string, ROOT::RDF::Experimental::RSample * > | fSampleMap |
Keys are fname + "/" + treename as RSampleInfo::fID; Values are pointers to the corresponding sample. | |
std::vector< ROOT::RDF::Experimental::RSample > | fSamples |
Samples need to survive throughout the whole event loop, hence stored as an attribute. | |
std::vector< std::string > | fSuppressErrorsForMissingBranches {} |
std::shared_ptr< TTree > | fTree {nullptr} |
Shared pointer to the input TTree. | |
std::set< std::pair< std::string_view, std::unique_ptr< ROOT::Internal::RDF::RDefinesWithReaders > > > | fUniqueDefinesWithReaders |
std::set< std::pair< std::string_view, std::unique_ptr< ROOT::Internal::RDF::RVariationsWithReaders > > > | fUniqueVariationsWithReaders |
ColumnNames_t | fValidBranchNames |
Cache of the tree/chain branch names. Never access directy, always use GetBranchNames(). | |
Friends | |
struct | RCallCleanUpTask |
Additional Inherited Members | |
Protected Attributes inherited from ROOT::Detail::RDF::RNodeBase | |
RLoopManager * | fLoopManager |
unsigned int | fNChildren {0} |
Number of nodes of the functional graph hanging from this object. | |
unsigned int | fNStopsReceived {0} |
Number of times that a children node signaled to stop processing entries. | |
std::vector< std::string > | fVariations |
List of systematic variations that affect this node. | |
#include <ROOT/RDF/RLoopManager.hxx>
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Definition at line 115 of file RLoopManager.hxx.
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Enumerator | |
---|---|
kROOTFiles | |
kROOTFilesMT | |
kNoFiles | |
kNoFilesMT | |
kDataSource | |
kDataSourceMT |
Definition at line 116 of file RLoopManager.hxx.
RLoopManager::RLoopManager | ( | TTree * | tree, |
const ColumnNames_t & | defaultBranches | ||
) |
Definition at line 352 of file RLoopManager.cxx.
RLoopManager::RLoopManager | ( | std::unique_ptr< TTree > | tree, |
const ColumnNames_t & | defaultBranches | ||
) |
Definition at line 363 of file RLoopManager.cxx.
RLoopManager::RLoopManager | ( | ULong64_t | nEmptyEntries | ) |
Definition at line 374 of file RLoopManager.cxx.
RLoopManager::RLoopManager | ( | std::unique_ptr< RDataSource > | ds, |
const ColumnNames_t & | defaultBranches | ||
) |
Definition at line 384 of file RLoopManager.cxx.
RLoopManager::RLoopManager | ( | ROOT::RDF::Experimental::RDatasetSpec && | spec | ) |
Definition at line 396 of file RLoopManager.cxx.
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void RLoopManager::AddDataSourceColumnReaders | ( | const std::string & | col, |
std::vector< std::unique_ptr< RColumnReaderBase > > && | readers, | ||
const std::type_info & | ti | ||
) |
Definition at line 1112 of file RLoopManager.cxx.
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End of recursive chain of calls, does nothing.
Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 248 of file RLoopManager.hxx.
void RLoopManager::AddSampleCallback | ( | void * | nodePtr, |
ROOT::RDF::SampleCallback_t && | callback | ||
) |
Definition at line 1152 of file RLoopManager.cxx.
RColumnReaderBase * RLoopManager::AddTreeColumnReader | ( | unsigned int | slot, |
const std::string & | col, | ||
std::unique_ptr< RColumnReaderBase > && | reader, | ||
const std::type_info & | ti | ||
) |
Register a new RTreeColumnReader with this RLoopManager.
Definition at line 1128 of file RLoopManager.cxx.
void RLoopManager::ChangeSpec | ( | ROOT::RDF::Experimental::RDatasetSpec && | spec | ) |
Changes the internal TTree held by the RLoopManager.
spec | The specification of the dataset to be adopted. |
Definition at line 419 of file RLoopManager.cxx.
Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 1006 of file RLoopManager.cxx.
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Perform clean-up operations. To be called at the end of each event loop.
Definition at line 803 of file RLoopManager.cxx.
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Perform clean-up operations. To be called at the end of each task execution.
Definition at line 827 of file RLoopManager.cxx.
void RLoopManager::Deregister | ( | RDefineBase * | definePtr | ) |
Definition at line 989 of file RLoopManager.cxx.
void RLoopManager::Deregister | ( | RDFInternal::RActionBase * | actionPtr | ) |
Definition at line 952 of file RLoopManager.cxx.
void RLoopManager::Deregister | ( | RDFInternal::RVariationBase * | varPtr | ) |
Definition at line 1000 of file RLoopManager.cxx.
void RLoopManager::Deregister | ( | RFilterBase * | filterPtr | ) |
Definition at line 968 of file RLoopManager.cxx.
void RLoopManager::Deregister | ( | RRangeBase * | rangePtr | ) |
Definition at line 979 of file RLoopManager.cxx.
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Trigger counting of number of children nodes for each node of the functional graph.
This is done once before starting the event loop. Each action sends an increase children count
signal upstream, which is propagated until RLoopManager. Each time a node receives the signal, in increments its children counter. Each node only propagates the signal once, even if it receives it multiple times. Named filters also send an increase children count
signal, just like actions, as they always execute during the event loop so the graph branch they belong to must count as active even if it does not end in an action.
Definition at line 878 of file RLoopManager.cxx.
std::vector< RDFInternal::RActionBase * > RLoopManager::GetAllActions | ( | ) | const |
Return all actions, either booked or already run.
Definition at line 1059 of file RLoopManager.cxx.
const ColumnNames_t & RLoopManager::GetBranchNames | ( | ) |
Return all valid TTree::Branch names (caching results for subsequent calls).
Never use fBranchNames directy, always request it through this method.
Definition at line 1094 of file RLoopManager.cxx.
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Definition at line 269 of file RLoopManager.hxx.
RColumnReaderBase * RLoopManager::GetDatasetColumnReader | ( | unsigned int | slot, |
const std::string & | col, | ||
const std::type_info & | ti | ||
) | const |
Definition at line 1142 of file RLoopManager.cxx.
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Definition at line 218 of file RLoopManager.hxx.
const ColumnNames_t & RLoopManager::GetDefaultColumnNames | ( | ) | const |
Return the list of default columns – empty if none was provided when constructing the RDataFrame.
Definition at line 936 of file RLoopManager.cxx.
::TDirectory * ROOT::Detail::RDF::RLoopManager::GetDirectory | ( | ) | const |
std::vector< std::string > RLoopManager::GetFiltersNames | ( | ) |
For each booked filter, returns either the name or "Unnamed Filter".
Definition at line 1041 of file RLoopManager.cxx.
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Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 1067 of file RLoopManager.cxx.
std::vector< RNodeBase * > RLoopManager::GetGraphEdges | ( | ) | const |
Return all graph edges known to RLoopManager This includes Filters and Ranges but not Defines.
Definition at line 1051 of file RLoopManager.cxx.
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Reimplemented from ROOT::Detail::RDF::RNodeBase.
Definition at line 212 of file RLoopManager.hxx.
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Definition at line 217 of file RLoopManager.hxx.
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Definition at line 239 of file RLoopManager.hxx.
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Definition at line 230 of file RLoopManager.hxx.
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Definition at line 281 of file RLoopManager.hxx.
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Definition at line 282 of file RLoopManager.hxx.
TTree * RLoopManager::GetTree | ( | ) | const |
Definition at line 941 of file RLoopManager.cxx.
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Definition at line 271 of file RLoopManager.hxx.
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Definition at line 276 of file RLoopManager.hxx.
bool RLoopManager::HasDataSourceColumnReaders | ( | const std::string & | col, |
const std::type_info & | ti | ||
) | const |
Return true if AddDataSourceColumnReaders was called for column name col.
Definition at line 1103 of file RLoopManager.cxx.
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Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 235 of file RLoopManager.hxx.
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Initialize all nodes of the functional graph before running the event loop.
This method is called once per event-loop and performs generic initialization operations that do not depend on the specific processing slot (i.e. operations that are common for all threads).
Definition at line 791 of file RLoopManager.cxx.
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Build TTreeReaderValues for all nodes This method loops over all filters, actions and other booked objects and calls their InitSlot
method, to get them ready for running a task.
Definition at line 728 of file RLoopManager.cxx.
void RLoopManager::Jit | ( | ) |
Add RDF nodes that require just-in-time compilation to the computation graph.
This method also clears the contents of GetCodeToJit().
Definition at line 848 of file RLoopManager.cxx.
void ROOT::Detail::RDF::RLoopManager::JitDeclarations | ( | ) |
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End of recursive chain of calls, does nothing.
Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 233 of file RLoopManager.hxx.
void RLoopManager::Register | ( | RDefineBase * | definePtr | ) |
Definition at line 984 of file RLoopManager.cxx.
void RLoopManager::Register | ( | RDFInternal::RActionBase * | actionPtr | ) |
Definition at line 946 of file RLoopManager.cxx.
void RLoopManager::Register | ( | RDFInternal::RVariationBase * | varPtr | ) |
Definition at line 995 of file RLoopManager.cxx.
void RLoopManager::Register | ( | RFilterBase * | filterPtr | ) |
Definition at line 959 of file RLoopManager.cxx.
void RLoopManager::Register | ( | RRangeBase * | rangePtr | ) |
Definition at line 974 of file RLoopManager.cxx.
void RLoopManager::RegisterCallback | ( | ULong64_t | everyNEvents, |
std::function< void(unsigned int)> && | f | ||
) |
Definition at line 1033 of file RLoopManager.cxx.
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Call FillReport
on all booked filters.
Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 1012 of file RLoopManager.cxx.
void RLoopManager::Run | ( | bool | jit = true | ) |
Start the event loop with a different mechanism depending on IMT/no IMT, data source/no data source.
Also perform a few setup and clean-up operations (jit actions if necessary, clear booked actions after the loop...). The jitting phase is skipped if the jit
parameter is false
(unsafe, use with care).
Definition at line 889 of file RLoopManager.cxx.
Execute actions and make sure named filters are called for each event.
Named filters must be called even if the analysis logic would not require it, lest they report confusing results.
Definition at line 708 of file RLoopManager.cxx.
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Run event loop over data accessed through a DataSource, in sequence.
Definition at line 635 of file RLoopManager.cxx.
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Run event loop over data accessed through a DataSource, in parallel.
Definition at line 666 of file RLoopManager.cxx.
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Run event loop with no source files, in sequence.
Definition at line 505 of file RLoopManager.cxx.
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Run event loop with no source files, in parallel.
Definition at line 458 of file RLoopManager.cxx.
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Run event loop over one or multiple ROOT files, in parallel.
Definition at line 549 of file RLoopManager.cxx.
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Run event loop over one or multiple ROOT files, in sequence.
Definition at line 597 of file RLoopManager.cxx.
Definition at line 1158 of file RLoopManager.cxx.
void RLoopManager::SetTree | ( | std::shared_ptr< TTree > | tree | ) |
Definition at line 1018 of file RLoopManager.cxx.
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Definition at line 744 of file RLoopManager.cxx.
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Implements ROOT::Detail::RDF::RNodeBase.
Definition at line 236 of file RLoopManager.hxx.
void RLoopManager::ToJitExec | ( | const std::string & | code | ) | const |
Definition at line 1027 of file RLoopManager.cxx.
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Definition at line 758 of file RLoopManager.cxx.
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Definition at line 763 of file RLoopManager.cxx.
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Definition at line 118 of file RLoopManager.hxx.
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Definition at line 131 of file RLoopManager.hxx.
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Non-owning pointers to actions to be run.
Definition at line 120 of file RLoopManager.hxx.
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Definition at line 125 of file RLoopManager.hxx.
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Definition at line 122 of file RLoopManager.hxx.
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Contains a subset of fBookedFilters, i.e. only the named filters.
Definition at line 123 of file RLoopManager.hxx.
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Definition at line 124 of file RLoopManager.hxx.
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Definition at line 126 of file RLoopManager.hxx.
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Definition at line 189 of file RLoopManager.hxx.
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Registered callbacks to be executed every N events.
The registration happens via the RegisterCallback method.
Definition at line 150 of file RLoopManager.hxx.
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Registered callbacks to invoke just once before running the loop.
The registration happens via the RegisterCallback method.
Definition at line 153 of file RLoopManager.hxx.
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Readers for TTree/RDataSource columns (one per slot), shared by all nodes in the computation graph.
Definition at line 162 of file RLoopManager.hxx.
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Owning pointer to a data-source object.
Null if no data-source
Definition at line 147 of file RLoopManager.hxx.
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Definition at line 141 of file RLoopManager.hxx.
Range of entries created when no data source is specified.
Definition at line 143 of file RLoopManager.hxx.
Definition at line 132 of file RLoopManager.hxx.
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Friends of the fTree. Only used if we constructed fTree ourselves.
Definition at line 140 of file RLoopManager.hxx.
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The kind of event loop that is going to be run (e.g. on ROOT files, on no files)
Definition at line 146 of file RLoopManager.hxx.
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Definition at line 145 of file RLoopManager.hxx.
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Definition at line 157 of file RLoopManager.hxx.
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Definition at line 167 of file RLoopManager.hxx.
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Number of event loops run.
Definition at line 159 of file RLoopManager.hxx.
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Definition at line 144 of file RLoopManager.hxx.
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Non-owning pointers to actions already run.
Definition at line 121 of file RLoopManager.hxx.
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Registered callbacks to call at the beginning of each "data block".
The key is the pointer of the corresponding node in the computation graph (a RDefinePerSample or a RAction).
Definition at line 156 of file RLoopManager.hxx.
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Definition at line 158 of file RLoopManager.hxx.
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Keys are fname + "/" + treename
as RSampleInfo::fID; Values are pointers to the corresponding sample.
Definition at line 135 of file RLoopManager.hxx.
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Samples need to survive throughout the whole event loop, hence stored as an attribute.
Definition at line 137 of file RLoopManager.hxx.
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Definition at line 188 of file RLoopManager.hxx.
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Shared pointer to the input TTree.
It does not delete the pointee if the TTree/TChain was passed directly as an argument to RDataFrame's ctor (in which case we let users retain ownership).
Definition at line 130 of file RLoopManager.hxx.
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Definition at line 191 of file RLoopManager.hxx.
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Definition at line 193 of file RLoopManager.hxx.
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Cache of the tree/chain branch names. Never access directy, always use GetBranchNames().
Definition at line 165 of file RLoopManager.hxx.