Logo ROOT  
Reference Guide
RooLinkedList.cxx
Go to the documentation of this file.
1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * @(#)root/roofitcore:$Id$
5 * Authors: *
6 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
7 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
8 * *
9 * Copyright (c) 2000-2005, Regents of the University of California *
10 * and Stanford University. All rights reserved. *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
14 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
15 *****************************************************************************/
16
17/**
18\file RooLinkedList.cxx
19\class RooLinkedList
20\ingroup Roofitcore
21
22RooLinkedList is an collection class for internal use, storing
23a collection of RooAbsArg pointers in a doubly linked list.
24It can optionally add a hash table to speed up random access
25in large collections
26Use RooAbsCollection derived objects for public use
27(e.g. RooArgSet or RooArgList)
28**/
29
30#include "RooLinkedList.h"
31
32#include "RooLinkedListIter.h"
33#include "RooAbsArg.h"
34#include "RooAbsData.h"
35#include "RooMsgService.h"
36
37#include "Riostream.h"
38#include "TBuffer.h"
39#include "TROOT.h"
40
41#include <algorithm>
42#include <list>
43#include <memory>
44#include <vector>
45
46using namespace std;
47
49;
51 /// a chunk of memory in a pool for quick allocation of RooLinkedListElems
52 class Chunk {
53 public:
54 /// constructor
56 _sz(sz), _free(capacity()),
58 {
59 //cout << "RLLID::Chunk ctor(" << this << ") of size " << _free << " list elements" << endl ;
60 // initialise free list
61 for (Int_t i = 0; i < _free; ++i)
62 _chunk[i]._next = (i + 1 < _free) ? &_chunk[i + 1] : 0;
63 }
64 /// destructor
65 ~Chunk() { delete[] _chunk; }
66 /// chunk capacity
68 { return (1 << _sz) / sizeof(RooLinkedListElem); }
69 /// chunk free elements
70 Int_t free() const { return _free; }
71 /// chunk occupied elements
72 Int_t size() const { return capacity() - free(); }
73 /// return size class
74 int szclass() const { return _sz; }
75 /// chunk full?
76 bool full() const { return !free(); }
77 /// chunk empty?
78 bool empty() const { return capacity() == free(); }
79 /// return address of chunk
80 const void* chunkaddr() const { return _chunk; }
81 /// check if el is in this chunk
83 { return _chunk <= el && el < &_chunk[capacity()]; }
84 /// pop a free element off the free list
86 {
87 if (!_freelist) return 0;
89 _freelist = retVal->_next;
90 retVal->_arg = 0; retVal->_refCount = 0;
91 retVal->_prev = retVal->_next = 0;
92 --_free;
93 return retVal;
94 }
95 /// push a free element back onto the freelist
97 {
98 el->_next = _freelist;
99 _freelist = el;
100 ++_free;
101 }
102 private:
103 Int_t _sz; ///< chunk capacity
104 Int_t _free; ///< length of free list
105 RooLinkedListElem* _chunk; ///< chunk from which elements come
106 RooLinkedListElem* _freelist; ///< list of free elements
107
108 /// forbid copying
109 Chunk(const Chunk&);
110 // forbid assignment
112 };
113
114 class Pool {
115 private:
116 enum {
117 minsz = 7, ///< minimum chunk size (just below 1 << minsz bytes)
118 maxsz = 18, ///< maximum chunk size (just below 1 << maxsz bytes)
119 szincr = 1 ///< size class increment (sz = 1 << (minsz + k * szincr))
120 };
121 /// a chunk of memory in the pool
123 typedef std::list<Chunk*> ChunkList;
124 typedef std::map<const void*, Chunk*> AddrMap;
125 public:
126 /// constructor
127 Pool();
128 /// destructor
129 ~Pool();
130 /// acquire the pool
131 inline void acquire() { ++_refCount; }
132 /// release the pool, return true if the pool is unused
133 inline bool release() { return 0 == --_refCount; }
134 /// pop a free element out of the pool
136 /// push a free element back into the pool
138 private:
144
145 /// adjust _cursz to current largest block
146 void updateCurSz(Int_t sz, Int_t incr);
147 /// find size of next chunk to allocate (in a hopefully smart way)
148 Int_t nextChunkSz() const;
149 };
150
151 Pool::Pool() : _cursz(minsz), _refCount(0)
152 {
153 std::fill(_szmap, _szmap + ((maxsz - minsz) / szincr), 0);
154 }
155
157 {
158 _freelist.clear();
159 for (AddrMap::iterator it = _addrmap.begin(); _addrmap.end() != it; ++it)
160 delete it->second;
161 _addrmap.clear();
162 }
163
165 {
166 if (_freelist.empty()) {
167 // allocate and register new chunk and put it on the freelist
168 const Int_t sz = nextChunkSz();
169 Chunk *c = new Chunk(sz);
170 _addrmap[c->chunkaddr()] = c;
171 _freelist.push_back(c);
172 updateCurSz(sz, +1);
173 }
174 // get free element from first chunk on _freelist
175 Chunk* c = _freelist.front();
176 RooLinkedListElem* retVal = c->pop_free_elem();
177 // full chunks are removed from _freelist
178 if (c->full()) _freelist.pop_front();
179 return retVal;
180 }
181
183 {
184 // find from which chunk el came
185 AddrMap::iterator ci = _addrmap.end();
186 if (!_addrmap.empty()) {
187 ci = _addrmap.lower_bound(el);
188 if (ci == _addrmap.end()) {
189 // point beyond last element, so get last one
190 ci = (++_addrmap.rbegin()).base();
191 } else {
192 // valid ci, check if we need to decrement ci because el isn't the
193 // first element in the chunk
194 if (_addrmap.begin() != ci && ci->first != el) --ci;
195 }
196 }
197 // either empty addressmap, or ci should now point to the chunk which might
198 // contain el
199 if (_addrmap.empty() || !ci->second->contains(el)) {
200 // el is not in any chunk we know about, so just delete it
201 delete el;
202 return;
203 }
204 Chunk *c = ci->second;
205 const bool moveToFreelist = c->full();
206 c->push_free_elem(el);
207 if (c->empty()) {
208 // delete chunk if all empty
209 ChunkList::iterator it = std::find( _freelist.begin(), _freelist.end(), c);
210 if (_freelist.end() != it) _freelist.erase(it);
211 _addrmap.erase(ci->first);
212 updateCurSz(c->szclass(), -1);
213 delete c;
214 } else if (moveToFreelist) {
215 _freelist.push_back(c);
216 }
217 }
218
220 {
221 _szmap[(sz - minsz) / szincr] += incr;
222 _cursz = minsz;
223 for (int i = (maxsz - minsz) / szincr; i--; ) {
224 if (_szmap[i]) {
225 _cursz += i * szincr;
226 break;
227 }
228 }
229 }
230
232 {
233 // no chunks with space available, figure out chunk size
234 Int_t sz = _cursz;
235 if (_addrmap.empty()) {
236 // if we start allocating chunks, we start from minsz
237 sz = minsz;
238 } else {
239 if (minsz >= sz) {
240 // minimal sized chunks are always grown
241 sz = minsz + szincr;
242 } else {
243 if (1 != _addrmap.size()) {
244 // if we have more than one completely filled chunk, grow
245 sz += szincr;
246 } else {
247 // just one chunk left, try shrinking chunk size
248 sz -= szincr;
249 }
250 }
251 }
252 // clamp size to allowed range
253 if (sz > maxsz) sz = maxsz;
254 if (sz < minsz) sz = minsz;
255 return sz;
256 }
257}
258
260
261////////////////////////////////////////////////////////////////////////////////
262
264 _hashThresh(htsize), _size(0), _first(0), _last(0), _htableName(nullptr), _htableLink(nullptr), _useNptr(true)
265{
266 if (!_pool) _pool = new Pool;
267 _pool->acquire();
268}
269
270////////////////////////////////////////////////////////////////////////////////
271/// Copy constructor
272
274 TObject(other), _hashThresh(other._hashThresh), _size(0), _first(0), _last(0), _htableName(nullptr), _htableLink(nullptr),
275 _name(other._name),
276 _useNptr(other._useNptr)
277{
278 if (!_pool) _pool = new Pool;
279 _pool->acquire();
280 if (other._htableName) _htableName = std::make_unique<HashTableByName>(other._htableName->size()) ;
281 if (other._htableLink) _htableLink = std::make_unique<HashTableByLink>(other._htableLink->size()) ;
282 for (RooLinkedListElem* elem = other._first; elem; elem = elem->_next) {
283 Add(elem->_arg, elem->_refCount) ;
284 }
285}
286
287////////////////////////////////////////////////////////////////////////////////
288/// cout << "RooLinkedList::createElem(" << this << ") obj = " << obj << " elem = " << elem << endl ;
289
291{
293 ret->init(obj, elem);
294 return ret ;
295}
296
297////////////////////////////////////////////////////////////////////////////////
298
300{
301 elem->release() ;
302 _pool->push_free_elem(elem);
303 //delete elem ;
304}
305
306////////////////////////////////////////////////////////////////////////////////
307/// Assignment operator, copy contents from 'other'
308
310{
311 // Prevent self-assignment
312 if (&other==this) return *this ;
313
314 // remove old elements
315 Clear();
316 // Copy elements
317 for (RooLinkedListElem* elem = other._first; elem; elem = elem->_next) {
318 Add(elem->_arg) ;
319 }
320
321 return *this ;
322}
323
324////////////////////////////////////////////////////////////////////////////////
325/// Change the threshold for hash-table use to given size.
326/// If a hash table exists when this method is called, it is regenerated.
327
329{
330 if (size<0) {
331 coutE(InputArguments) << "RooLinkedList::setHashTable() ERROR size must be positive" << endl ;
332 return ;
333 }
334 if (size==0) {
335 if (!_htableName) {
336 // No hash table present
337 return ;
338 } else {
339 // Remove existing hash table
340 _htableName.reset(nullptr);
341 _htableLink.reset(nullptr);
342 }
343 } else {
344
345 // (Re)create hash tables
346 _htableName = std::make_unique<HashTableByName>(size) ;
347 _htableLink = std::make_unique<HashTableByLink>(size) ;
348
349 // Fill hash table with existing entries
351 while(ptr) {
352 _htableName->insert({ptr->_arg->GetName(), ptr->_arg}) ;
353 _htableLink->insert({ptr->_arg, (TObject*)ptr}) ;
354 ptr = ptr->_next ;
355 }
356 }
357}
358
359////////////////////////////////////////////////////////////////////////////////
360/// Destructor
361
363{
364 // Required since we overload TObject::Hash.
366
367 _htableName.reset(nullptr);
368 _htableLink.reset(nullptr);
369
370 Clear() ;
371 if (_pool->release()) {
372 delete _pool;
373 _pool = 0;
374 }
375}
376
377////////////////////////////////////////////////////////////////////////////////
378/// Find the element link containing the given object
379
381{
382 if (_htableLink) {
383 auto found = _htableLink->find(arg);
384 if (found == _htableLink->end()) return nullptr;
385 return (RooLinkedListElem*)found->second;
386 }
387
389 while(ptr) {
390 if (ptr->_arg == arg) {
391 return ptr ;
392 }
393 ptr = ptr->_next ;
394 }
395 return 0 ;
396
397}
398
399////////////////////////////////////////////////////////////////////////////////
400/// Insert object into collection with given reference count value
401
402void RooLinkedList::Add(TObject* arg, Int_t refCount)
403{
404 if (!arg) return ;
405
406 // Only use RooAbsArg::namePtr() in lookup-by-name if all elements have it
407 if (!dynamic_cast<RooAbsArg*>(arg) && !dynamic_cast<RooAbsData*>(arg)) _useNptr = false;
408
409 // Add to hash table
410 if (_htableName) {
411
412 // Expand capacity of hash table if #entries>#slots
413 if (static_cast<size_t>(_size) > _htableName->size()) {
415 }
416
417 } else if (_hashThresh>0 && _size>_hashThresh) {
418
420 }
421
422 if (_last) {
423 // Append element at end of list
424 _last = createElement(arg,_last) ;
425 } else {
426 // Append first element, set first,last
427 _last = createElement(arg) ;
428 _first=_last ;
429 }
430
431 if (_htableName){
432 //cout << "storing link " << _last << " with hash arg " << arg << endl ;
433 _htableName->insert({arg->GetName(), arg});
434 _htableLink->insert({arg, (TObject*)_last});
435 }
436
437 _size++ ;
438 _last->_refCount = refCount ;
439
440 _at.push_back(_last);
441}
442
443////////////////////////////////////////////////////////////////////////////////
444/// Remove object from collection
445
447{
448 // Find link element
449 RooLinkedListElem* elem = findLink(arg) ;
450 if (!elem) return false ;
451
452 // Remove from hash table
453 if (_htableName) {
454 _htableName->erase(arg->GetName()) ;
455 }
456 if (_htableLink) {
457 _htableLink->erase(arg) ;
458 }
459
460 // Update first,last if necessary
461 if (elem==_first) _first=elem->_next ;
462 if (elem==_last) _last=elem->_prev ;
463
464 // Remove from index array
465 auto at_elem_it = std::find(_at.begin(), _at.end(), elem);
466 _at.erase(at_elem_it);
467
468 // Delete and shrink
469 _size-- ;
470 deleteElement(elem) ;
471 return true ;
472}
473
474////////////////////////////////////////////////////////////////////////////////
475/// If one of the TObject we have a referenced to is deleted, remove the
476/// reference.
477
479{
480 Remove(obj); // This is a nop if the obj is not in the collection.
481}
482
483////////////////////////////////////////////////////////////////////////////////
484/// Return object stored in sequential position given by index.
485/// If index is out of range, a null pointer is returned.
486
488{
489 // Check range
490 if (index<0 || index>=_size) return 0 ;
491
492 return _at[index]->_arg;
493//
494//
495// // Walk list
496// RooLinkedListElem* ptr = _first;
497// while(index--) ptr = ptr->_next ;
498//
499// // Return arg
500// return ptr->_arg ;
501}
502
503////////////////////////////////////////////////////////////////////////////////
504/// Replace object 'oldArg' in collection with new object 'newArg'.
505/// If 'oldArg' is not found in collection false is returned
506
507bool RooLinkedList::Replace(const TObject* oldArg, const TObject* newArg)
508{
509 // Find existing element and replace arg
510 RooLinkedListElem* elem = findLink(oldArg) ;
511 if (!elem) return false ;
512
513 if (_htableName) {
514 _htableName->erase(oldArg->GetName());
515 _htableName->insert({newArg->GetName(), newArg});
516 }
517 if (_htableLink) {
518 // Link is hashed by contents and may change slot in hash table
519 _htableLink->erase(oldArg) ;
520 _htableLink->insert({newArg, (TObject*)elem}) ;
521 }
522
523 elem->_arg = (TObject*)newArg ;
524 return true ;
525}
526
527////////////////////////////////////////////////////////////////////////////////
528/// Return pointer to obejct with given name. If no such object
529/// is found return a null pointer
530
532{
533 return find(name) ;
534}
535
536////////////////////////////////////////////////////////////////////////////////
537/// Find object in list. If list contains object return
538/// (same) pointer to object, otherwise return null pointer
539
541{
542 RooLinkedListElem *elem = findLink((TObject*)obj) ;
543 return elem ? elem->_arg : 0 ;
544}
545
546////////////////////////////////////////////////////////////////////////////////
547/// Remove all elements from collection
548
550{
551 for (RooLinkedListElem *elem = _first, *next; elem; elem = next) {
552 next = elem->_next ;
553 deleteElement(elem) ;
554 }
555 _first = 0 ;
556 _last = 0 ;
557 _size = 0 ;
558
559 if (_htableName) {
560 _htableName = std::make_unique<HashTableByName>(_htableName->size()) ;
561 }
562 if (_htableLink) {
563 _htableLink = std::make_unique<HashTableByLink>(_htableLink->size()) ;
564 }
565
566 // empty index array
567 _at.clear();
568}
569
570////////////////////////////////////////////////////////////////////////////////
571/// Remove all elements in collection and delete all elements
572/// NB: Collection does not own elements, this function should
573/// be used judiciously by caller.
574
576{
578 while(elem) {
579 RooLinkedListElem* next = elem->_next ;
580 delete elem->_arg ;
581 deleteElement(elem) ;
582 elem = next ;
583 }
584 _first = 0 ;
585 _last = 0 ;
586 _size = 0 ;
587
588 if (_htableName) {
589 _htableName = std::make_unique<HashTableByName>(_htableName->size()) ;
590 }
591 if (_htableLink) {
592 _htableLink = std::make_unique<HashTableByLink>(_htableLink->size()) ;
593 }
594
595 // empty index array
596 _at.clear();
597}
598
599////////////////////////////////////////////////////////////////////////////////
600/// Return pointer to object with given name in collection.
601/// If no such object is found, return null pointer.
602
604{
605
606 if (_htableName) {
607 auto found = _htableName->find(name);
608 TObject *a = found != _htableName->end() ? const_cast<TObject*>(found->second) : nullptr;
609 // RooHashTable::find could return false negative if element was renamed to 'name'.
610 // The list search means it won't return false positive, so can return here.
611 if (a) return a;
612 if (_useNptr) {
613 // See if it might have been renamed
614 const TNamed* nptr= RooNameReg::known(name);
615 //cout << "RooLinkedList::find: possibly renamed '" << name << "', kRenamedArg=" << (nptr&&nptr->TestBit(RooNameReg::kRenamedArg)) << endl;
616 if (nptr && nptr->TestBit(RooNameReg::kRenamedArg)) {
618 while(ptr) {
619 if ( (dynamic_cast<RooAbsArg*>(ptr->_arg) && static_cast<RooAbsArg*>(ptr->_arg)->namePtr() == nptr) ||
620 (dynamic_cast<RooAbsData*>(ptr->_arg) && static_cast<RooAbsData*>(ptr->_arg)->namePtr() == nptr)) {
621 return ptr->_arg ;
622 }
623 ptr = ptr->_next ;
624 }
625 }
626 return nullptr ;
627 }
628 //cout << "RooLinkedList::find: possibly renamed '" << name << "'" << endl;
629 }
630
632
633 // The penalty for RooNameReg lookup seems to be outweighted by the faster search
634 // when the size list is longer than ~7, but let's be a bit conservative.
635 if (_useNptr && _size>9) {
636 const TNamed* nptr= RooNameReg::known(name);
637 if (!nptr) return nullptr;
638
639 while(ptr) {
640 if ( (dynamic_cast<RooAbsArg*>(ptr->_arg) && static_cast<RooAbsArg*>(ptr->_arg)->namePtr() == nptr) ||
641 (dynamic_cast<RooAbsData*>(ptr->_arg) && static_cast<RooAbsData*>(ptr->_arg)->namePtr() == nptr)) {
642 return ptr->_arg ;
643 }
644 ptr = ptr->_next ;
645 }
646 return nullptr ;
647 }
648
649 while(ptr) {
650 if (!strcmp(ptr->_arg->GetName(),name)) {
651 return ptr->_arg ;
652 }
653 ptr = ptr->_next ;
654 }
655 return nullptr ;
656}
657
658////////////////////////////////////////////////////////////////////////////////
659/// Return pointer to object with given name in collection.
660/// If no such object is found, return null pointer.
661
663{
664 if (_htableName) {
665 RooAbsArg* a = (RooAbsArg*) (*_htableName)[arg->GetName()] ;
666 if (a) return a;
667 //cout << "RooLinkedList::findArg: possibly renamed '" << arg->GetName() << "', kRenamedArg=" << arg->namePtr()->TestBit(RooNameReg::kRenamedArg) << endl;
668 // See if it might have been renamed
669 if (!arg->namePtr()->TestBit(RooNameReg::kRenamedArg)) return 0;
670 }
671
673 const TNamed* nptr = arg->namePtr();
674 while(ptr) {
675 if (((RooAbsArg*)(ptr->_arg))->namePtr() == nptr) {
676 return (RooAbsArg*) ptr->_arg ;
677 }
678 ptr = ptr->_next ;
679 }
680 return 0 ;
681}
682
683////////////////////////////////////////////////////////////////////////////////
684/// Return position of given object in list. If object
685/// is not contained in list, return -1
686
688{
690 Int_t idx(0) ;
691 while(ptr) {
692 if (ptr->_arg==arg) return idx ;
693 ptr = ptr->_next ;
694 idx++ ;
695 }
696 return -1 ;
697}
698
699////////////////////////////////////////////////////////////////////////////////
700/// Return position of given object in list. If object
701/// is not contained in list, return -1
702
704{
706 Int_t idx(0) ;
707 while(ptr) {
708 if (strcmp(ptr->_arg->GetName(),name)==0) return idx ;
709 ptr = ptr->_next ;
710 idx++ ;
711 }
712 return -1 ;
713}
714
715////////////////////////////////////////////////////////////////////////////////
716/// Print contents of list, defers to Print() function
717/// of contained objects
718
719void RooLinkedList::Print(const char* opt) const
720{
721 RooLinkedListElem* elem = _first ;
722 while(elem) {
723 cout << elem->_arg << " : " ;
724 elem->_arg->Print(opt) ;
725 elem = elem->_next ;
726 }
727}
728
729////////////////////////////////////////////////////////////////////////////////
730/// Create a TIterator for this list.
731/// \param forward Run in forward direction (default).
732/// \return Pointer to a TIterator. The caller owns the pointer.
733
735 auto iterImpl = std::make_unique<RooLinkedListIterImpl>(this, forward);
736 return new RooLinkedListIter(std::move(iterImpl));
737}
738
739////////////////////////////////////////////////////////////////////////////////
740/// Create an iterator for this list.
741/// \param forward Run in forward direction (default).
742/// \return RooLinkedListIter (subclass of TIterator) over this list
743
745 auto iterImpl = std::make_unique<RooLinkedListIterImpl>(this, forward);
746 return RooLinkedListIter(std::move(iterImpl));
747}
748
749////////////////////////////////////////////////////////////////////////////////
750/// Create a one-time-use forward iterator for this list.
751/// \return RooFIter that only supports next()
752
754 auto iterImpl = std::make_unique<RooFIterForLinkedList>(this);
755 return RooFIter(std::move(iterImpl));
756}
757
759 return {this, true};
760}
761
763 return {this, nullptr, true};
764}
765
767 return {this, false};
768}
769
771 return {this, nullptr, false};
772}
773
774////////////////////////////////////////////////////////////////////////////////
775
776void RooLinkedList::Sort(bool ascend)
777{
778 if (ascend) _first = mergesort_impl<true>(_first, _size, &_last);
779 else _first = mergesort_impl<false>(_first, _size, &_last);
780
781 // rebuild index array
783 for (auto it = _at.begin(); it != _at.end(); ++it, elem = elem->_next) {
784 *it = elem;
785 }
786}
787
788////////////////////////////////////////////////////////////////////////////////
789/// length 0, 1 lists are sorted
790
791template <bool ascending>
793 RooLinkedListElem* l1, const unsigned sz, RooLinkedListElem** tail)
794{
795 if (!l1 || sz < 2) {
796 // if desired, update the tail of the (newly merged sorted) list
797 if (tail) *tail = l1;
798 return l1;
799 }
800 if (sz <= 16) {
801 // for short lists, we sort in an array
802 std::vector<RooLinkedListElem *> arr(sz, nullptr);
803 for (int i = 0; l1; l1 = l1->_next, ++i) arr[i] = l1;
804 // straight insertion sort
805 {
806 int i = 1;
807 do {
808 int j = i - 1;
809 RooLinkedListElem *tmp = arr[i];
810 while (0 <= j) {
811 const bool inOrder = ascending ?
812 (tmp->_arg->Compare(arr[j]->_arg) <= 0) :
813 (arr[j]->_arg->Compare(tmp->_arg) <= 0);
814 if (!inOrder) break;
815 arr[j + 1] = arr[j];
816 --j;
817 }
818 arr[j + 1] = tmp;
819 ++i;
820 } while (int(sz) != i);
821 }
822 // link elements in array
823 arr[0]->_prev = arr[sz - 1]->_next = 0;
824 for (int i = 0; i < int(sz - 1); ++i) {
825 arr[i]->_next = arr[i + 1];
826 arr[i + 1]->_prev = arr[i];
827 }
828 if (tail) *tail = arr[sz - 1];
829 return arr[0];
830 }
831 // find middle of l1, and let a second list l2 start there
832 RooLinkedListElem *l2 = l1;
833 for (RooLinkedListElem *end = l2; end->_next; end = end->_next) {
834 end = end->_next;
835 l2 = l2->_next;
836 if (!end->_next) break;
837 }
838 // disconnect the two sublists
839 l2->_prev->_next = 0;
840 l2->_prev = 0;
841 // sort the two sublists (only recurse if we have to)
842 if (l1->_next) l1 = mergesort_impl<ascending>(l1, sz / 2);
843 if (l2->_next) l2 = mergesort_impl<ascending>(l2, sz - sz / 2);
844 // merge the two (sorted) sublists
845 // l: list head, t: list tail of merged list
846 RooLinkedListElem *l = (ascending ? (l1->_arg->Compare(l2->_arg) <= 0) :
847 (l2->_arg->Compare(l1->_arg) <= 0)) ? l1 : l2;
848 RooLinkedListElem *t = l;
849 if (l == l2) {
850 RooLinkedListElem* tmp = l1;
851 l1 = l2;
852 l2 = tmp;
853 }
854 l1 = l1->_next;
855 while (l1 && l2) {
856 const bool inOrder = ascending ? (l1->_arg->Compare(l2->_arg) <= 0) :
857 (l2->_arg->Compare(l1->_arg) <= 0);
858 if (!inOrder) {
859 // insert l2 just before l1
860 if (l1->_prev) {
861 l1->_prev->_next = l2;
862 l2->_prev = l1->_prev;
863 }
864 // swap l2 and l1
865 RooLinkedListElem *tmp = l1;
866 l1 = l2;
867 l2 = tmp;
868 }
869 // move forward in l1
870 t = l1;
871 l1 = l1->_next;
872 }
873 // attach l2 at t
874 if (l2) {
875 l2->_prev = t;
876 if (t) t->_next = l2;
877 }
878 // if desired, update the tail of the (newly merged sorted) list
879 if (tail) {
880 for (l1 = t; l1; l1 = l1->_next) t = l1;
881 *tail = t;
882 }
883 // return the head of the sorted list
884 return l;
885}
886// void Roo1DTable::Streamer(TBuffer &R__b)
887// {
888// // Stream an object of class Roo1DTable.
889
890// if (R__b.IsReading()) {
891// R__b.ReadClassBuffer(Roo1DTable::Class(),this);
892// } else {
893// R__b.WriteClassBuffer(Roo1DTable::Class(),this);
894// }
895// }
896
897////////////////////////////////////////////////////////////////////////////////
898/// Custom streaming handling schema evolution w.r.t past implementations
899
901{
902 if (R__b.IsReading()) {
903
904 Version_t v = R__b.ReadVersion();
905 //R__b.ReadVersion();
906 TObject::Streamer(R__b);
907
908 Int_t size ;
909 TObject* arg ;
910
911 R__b >> size ;
912 while(size--) {
913 R__b >> arg ;
914 Add(arg) ;
915 }
916
917 if (v > 1 && v < 4) {
918 R__b >> _name;
919 }
920
921 } else {
923 TObject::Streamer(R__b);
924 R__b << _size ;
925
927 while(ptr) {
928 R__b << ptr->_arg ;
929 ptr = ptr->_next ;
930 }
931
932 R__b << _name ;
933 }
934}
#define c(i)
Definition: RSha256.hxx:101
size_t size(const MatrixT &matrix)
retrieve the size of a square matrix
#define coutE(a)
Definition: RooMsgService.h:37
short Version_t
Definition: RtypesCore.h:65
const char Option_t
Definition: RtypesCore.h:66
#define ClassImp(name)
Definition: Rtypes.h:375
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t index
char name[80]
Definition: TGX11.cxx:110
RooAbsArg is the common abstract base class for objects that represent a value and a "shape" in RooFi...
Definition: RooAbsArg.h:71
const TNamed * namePtr() const
De-duplicated pointer to this object's name.
Definition: RooAbsArg.h:562
RooAbsData is the common abstract base class for binned and unbinned datasets.
Definition: RooAbsData.h:62
const TNamed * namePtr() const
De-duplicated pointer to this object's name.
Definition: RooAbsData.h:313
A one-time forward iterator working on RooLinkedList or RooAbsCollection.
RooLinkedListElem is an link element for the RooLinkedList class.
TObject * _arg
Link to contents.
Int_t _refCount
! Reference count
void init(TObject *arg, RooLinkedListElem *after=nullptr)
RooLinkedListElem * _prev
Link to previous element in list.
RooLinkedListElem * _next
Link to next element in list.
a chunk of memory in a pool for quick allocation of RooLinkedListElems
bool full() const
chunk full?
RooLinkedListElem * _freelist
list of free elements
void push_free_elem(RooLinkedListElem *el)
push a free element back onto the freelist
Chunk(const Chunk &)
forbid copying
bool empty() const
chunk empty?
RooLinkedListElem * pop_free_elem()
pop a free element off the free list
const void * chunkaddr() const
return address of chunk
Int_t size() const
chunk occupied elements
Int_t capacity() const
chunk capacity
Int_t free() const
chunk free elements
int szclass() const
return size class
Chunk & operator=(const Chunk &)
bool contains(RooLinkedListElem *el) const
check if el is in this chunk
Int_t _free
length of free list
RooLinkedListElem * _chunk
chunk from which elements come
UInt_t _szmap[(maxsz - minsz)/szincr]
bool release()
release the pool, return true if the pool is unused
void push_free_elem(RooLinkedListElem *el)
push a free element back into the pool
Int_t nextChunkSz() const
find size of next chunk to allocate (in a hopefully smart way)
void updateCurSz(Int_t sz, Int_t incr)
adjust _cursz to current largest block
void acquire()
acquire the pool
std::map< const void *, Chunk * > AddrMap
std::list< Chunk * > ChunkList
RooLinkedListElem * pop_free_elem()
pop a free element out of the pool
@ maxsz
maximum chunk size (just below 1 << maxsz bytes)
@ minsz
minimum chunk size (just below 1 << minsz bytes)
@ szincr
size class increment (sz = 1 << (minsz + k * szincr))
RooLinkedListImplDetails::Chunk Chunk
a chunk of memory in the pool
Implementation of the actual iterator on RooLinkedLists.
A wrapper around TIterator derivatives.
RooLinkedList is an collection class for internal use, storing a collection of RooAbsArg pointers in ...
Definition: RooLinkedList.h:38
RooLinkedListIterImpl rend() const
TObject * At(int index) const
Return object stored in sequential position given by index.
RooLinkedListIter iterator(bool forward=true) const
Create an iterator for this list.
static Pool * _pool
shared memory pool for allocation of RooLinkedListElems
~RooLinkedList() override
Destructor.
RooLinkedListIterImpl end() const
RooLinkedListImplDetails::Pool Pool
memory pool for quick allocation of RooLinkedListElems
std::vector< RooLinkedListElem * > _at
! index list for quick index through ::At
std::unique_ptr< HashTableByName > _htableName
! Hash table by name
void RecursiveRemove(TObject *obj) override
If one of the TObject we have a referenced to is deleted, remove the reference.
bool Replace(const TObject *oldArg, const TObject *newArg)
Replace object 'oldArg' in collection with new object 'newArg'.
RooLinkedList(Int_t htsize=0)
void Print(const char *opt) const override
Print contents of list, defers to Print() function of contained objects.
std::unique_ptr< HashTableByLink > _htableLink
! Hash table by link pointer
RooFIter fwdIterator() const
Create a one-time-use forward iterator for this list.
void deleteElement(RooLinkedListElem *)
RooLinkedListElem * findLink(const TObject *arg) const
Find the element link containing the given object.
void Streamer(TBuffer &) override
Custom streaming handling schema evolution w.r.t past implementations.
RooLinkedListIterImpl rbegin() const
std::size_t size() const
Definition: RooLinkedList.h:64
TClass * IsA() const override
Int_t _hashThresh
Size threshold for hashing.
RooLinkedListElem * createElement(TObject *obj, RooLinkedListElem *elem=nullptr)
cout << "RooLinkedList::createElem(" << this << ") obj = " << obj << " elem = " << elem << endl ;
RooAbsArg * findArg(const RooAbsArg *) const
Return pointer to object with given name in collection.
void Delete(Option_t *o=nullptr) override
Remove all elements in collection and delete all elements NB: Collection does not own elements,...
TObject * find(const char *name) const
Return pointer to object with given name in collection.
RooLinkedList & operator=(const RooLinkedList &other)
Assignment operator, copy contents from 'other'.
virtual void Add(TObject *arg)
Definition: RooLinkedList.h:67
Int_t _size
Current size of list.
RooLinkedListIterImpl begin() const
RooLinkedListElem * _last
! Link to last element of list
void setHashTableSize(Int_t size)
Change the threshold for hash-table use to given size.
TObject * FindObject(const char *name) const override
Return pointer to obejct with given name.
RooLinkedListElem * _first
! Link to first element of list
TIterator * MakeIterator(bool forward=true) const
Create a TIterator for this list.
void Clear(Option_t *o=nullptr) override
Remove all elements from collection.
static RooLinkedListElem * mergesort_impl(RooLinkedListElem *l1, const unsigned sz, RooLinkedListElem **tail=nullptr)
length 0, 1 lists are sorted
void Sort(bool ascend=true)
Int_t IndexOf(const char *name) const
Return position of given object in list.
virtual bool Remove(TObject *arg)
Remove object from collection.
static const TNamed * known(const char *stringPtr)
If the name is already known, return its TNamed pointer. Otherwise return 0 (don't register the name)...
Definition: RooNameReg.cxx:91
@ kRenamedArg
TNamed flag to indicate that some RooAbsArg has been renamed (flag set in new name)
Definition: RooNameReg.h:44
Buffer base class used for serializing objects.
Definition: TBuffer.h:43
virtual Version_t ReadVersion(UInt_t *start=nullptr, UInt_t *bcnt=nullptr, const TClass *cl=nullptr)=0
Bool_t IsReading() const
Definition: TBuffer.h:86
virtual UInt_t WriteVersion(const TClass *cl, Bool_t useBcnt=kFALSE)=0
Iterator abstract base class.
Definition: TIterator.h:30
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
const char * GetName() const override
Returns name of object.
Definition: TNamed.h:47
Mother of all ROOT objects.
Definition: TObject.h:37
virtual const char * GetName() const
Returns name of object.
Definition: TObject.cxx:363
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
Definition: TObject.h:187
virtual void Streamer(TBuffer &)
Stream an object of class TObject.
Definition: TObject.cxx:806
virtual Int_t Compare(const TObject *obj) const
Compare abstract method.
Definition: TObject.cxx:161
virtual void Print(Option_t *option="") const
This method must be overridden when a class wants to print itself.
Definition: TObject.cxx:554
void CallRecursiveRemoveIfNeeded(TObject &obj)
call RecursiveRemove for obj if gROOT is valid and obj.TestBit(kMustCleanup) is true.
Definition: TROOT.h:393
@ InputArguments
Definition: RooGlobalFunc.h:64
void forward(const LAYERDATA &prevLayerData, LAYERDATA &currLayerData)
apply the weights (and functions) in forward direction of the DNN
Definition: NeuralNet.icc:546
fill
Definition: fit1_py.py:6
TLine l
Definition: textangle.C:4
TArc a
Definition: textangle.C:12