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TStreamerInfoWriteBuffer.cxx
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1 // @(#)root/io:$Id$
2 // Author: Rene Brun 12/10/2000
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #include "TBuffer.h"
13 #include "TClass.h"
14 #include "TClonesArray.h"
15 #include "TError.h"
16 #include "TProcessID.h"
17 #include "TStreamer.h"
18 #include "TStreamerElement.h"
19 #include "TStreamerInfo.h"
20 #include "TVirtualCollectionProxy.h"
21 #include "TRefTable.h"
22 #include "TFile.h"
23 
24 #include "TVirtualArray.h"
25 #include "TBufferFile.h"
26 #include "TInterpreter.h"
27 
28 //==========CPP macros
29 
30 #define DOLOOP for(int k=0; k<narr; ++k)
31 
32 #define WriteBasicTypeElem(name,index) \
33  { \
34  name *x=(name*)(arr[index]+ioffset); \
35  b << *x; \
36  }
37 
38 #define WriteBasicType(name) \
39  { \
40  WriteBasicTypeElem(name,0); \
41  }
42 
43 #define WriteBasicTypeLoop(name) \
44  { \
45  for(int k=0; k<narr; ++k) WriteBasicTypeElem(name,k); \
46  }
47 
48 #define WriteBasicArrayElem(name,index) \
49  { \
50  name *x=(name*)(arr[index]+ioffset); \
51  b.WriteFastArray(x,compinfo[i]->fLength); \
52  }
53 
54 #define WriteBasicArray(name) \
55  { \
56  WriteBasicArrayElem(name,0); \
57  }
58 
59 #define WriteBasicArrayLoop(name) \
60  { \
61  for(int k=0; k<narr; ++k) WriteBasicArrayElem(name,k); \
62  }
63 
64 #define WriteBasicPointerElem(name,index) \
65  { \
66  Int_t *l = (Int_t*)(arr[index]+imethod); \
67  name **f = (name**)(arr[index]+ioffset); \
68  name *af = *f; \
69  if (af && *l) b << Char_t(1); \
70  else {b << Char_t(0); continue;} \
71  int j; \
72  for(j=0;j<compinfo[i]->fLength;j++) { \
73  b.WriteFastArray(f[j],*l); \
74  } \
75  }
76 
77 #define WriteBasicPointer(name) \
78  { \
79  int imethod = compinfo[i]->fMethod+eoffset; \
80  WriteBasicPointerElem(name,0); \
81  }
82 
83 #define WriteBasicPointerLoop(name) \
84  { \
85  int imethod = compinfo[i]->fMethod+eoffset; \
86  for(int k=0; k<narr; ++k) { \
87  WriteBasicPointerElem(name,k); \
88  } \
89  }
90 
91 // Helper function for TStreamerInfo::WriteBuffer
92 namespace {
93  template <class T> Bool_t R__TestUseCache(TStreamerElement *element)
94  {
95  return element->TestBit(TStreamerElement::kCache);
96  }
97 
98  template <> Bool_t R__TestUseCache<TVirtualArray>(TStreamerElement*)
99  {
100  // We are already using the cache, no need to recurse one more time.
101  return kFALSE;
102  }
103 }
104 
105 ////////////////////////////////////////////////////////////////////////////////
106 /// The object at pointer is serialized to the buffer b
107 /// if (arrayMode & 1) ptr is a pointer to array of pointers to the objects
108 /// otherwise it is a pointer to a pointer to a single object.
109 /// This also means that T is of a type such that arr[i] is a pointer to an
110 /// object. Currently the only anticipated instantiation are for T==char**
111 /// and T==TVirtualCollectionProxy
112 
113 template <class T>
114 Int_t TStreamerInfo::WriteBufferAux(TBuffer &b, const T &arr,
115  TCompInfo *const*const compinfo, Int_t first, Int_t last,
116  Int_t narr, Int_t eoffset, Int_t arrayMode)
117 {
118  Bool_t needIncrement = !( arrayMode & 2 );
119  arrayMode = arrayMode & (~2);
120 
121  if (needIncrement) b.IncrementLevel(this);
122 
123  //mark this class as being used in the current file
124  b.TagStreamerInfo(this);
125 
126  //============
127 
128  //loop on all active members
129 // Int_t last;
130 // if (first < 0) {first = 0; last = ninfo;}
131 // else last = first+1;
132 
133  // In order to speed up the case where the object being written is
134  // not in a collection (i.e. arrayMode is false), we actually
135  // duplicate the elementary types using this typeOffset.
136  static const int kHaveLoop = 1024;
137  const Int_t typeOffset = arrayMode ? kHaveLoop : 0;
138 
139  for (Int_t i=first;i<last;i++) {
140 
141  TStreamerElement *aElement = (TStreamerElement*)compinfo[i]->fElem;
142 
143  if (needIncrement) b.SetStreamerElementNumber(aElement,compinfo[i]->fType);
144 
145  Int_t ioffset = eoffset+compinfo[i]->fOffset;
146 
147  if (R__TestUseCache<T>(aElement)) {
148  if (aElement->TestBit(TStreamerElement::kWrite)) {
149  if (((TBufferFile&)b).PeekDataCache()==0) {
150  Warning("WriteBuffer","Skipping %s::%s because the cache is missing.",GetName(),aElement->GetName());
151  } else {
152  if (gDebug > 1) {
153  printf("WriteBuffer, class:%s, name=%s, fType[%d]=%d,"
154  " %s, bufpos=%d, arr=%p, eoffset=%d, Redirect=%p\n",
155  fClass->GetName(),aElement->GetName(),i,compinfo[i]->fType,
156  aElement->ClassName(),b.Length(),arr[0], eoffset,((TBufferFile&)b).PeekDataCache()->GetObjectAt(0));
157  }
158  WriteBufferAux(b,*((TBufferFile&)b).PeekDataCache(),compinfo,i,i+1,narr,eoffset, arrayMode);
159  }
160  continue;
161  } else {
162  if (gDebug > 1) {
163  printf("WriteBuffer, class:%s, name=%s, fType[%d]=%d,"
164  " %s, bufpos=%d, arr=%p, eoffset=%d, not a write rule, skipping.\n",
165  fClass->GetName(),aElement->GetName(),i,compinfo[i]->fType,
166  aElement->ClassName(),b.Length(),arr[0], eoffset);
167  }
168  // The rule was a cached element for a read, rule, the real offset is in the
169  // next element (the one for the rule itself).
170  if (aElement->TestBit(TStreamerElement::kRepeat)) continue;
171  ioffset = eoffset+compinfo[i]->fOffset;
172  continue;
173  }
174  }
175 
176  if (gDebug > 1) {
177  printf("WriteBuffer, class:%s, name=%s, fType[%d]=%d, %s, "
178  "bufpos=%d, arr=%p, offset=%d\n",
179  fClass->GetName(),aElement->GetName(),i,compinfo[i]->fType,aElement->ClassName(),
180  b.Length(),arr[0],ioffset);
181  }
182 
183  switch (compinfo[i]->fType+typeOffset) {
184  // In this switch we intentionally use 'continue' instead of
185  // 'break' to avoid running the 2nd switch (see later in this
186  // function).
187 
188  case TStreamerInfo::kBool: WriteBasicType(Bool_t); continue;
189  case TStreamerInfo::kChar: WriteBasicType(Char_t); continue;
190  case TStreamerInfo::kShort: WriteBasicType(Short_t); continue;
191  case TStreamerInfo::kInt: WriteBasicType(Int_t); continue;
192  case TStreamerInfo::kLong: WriteBasicType(Long_t); continue;
193  case TStreamerInfo::kLong64: WriteBasicType(Long64_t); continue;
194  case TStreamerInfo::kFloat: WriteBasicType(Float_t); continue;
195  case TStreamerInfo::kDouble: WriteBasicType(Double_t); continue;
196  case TStreamerInfo::kUChar: WriteBasicType(UChar_t); continue;
197  case TStreamerInfo::kUShort: WriteBasicType(UShort_t); continue;
198  case TStreamerInfo::kUInt: WriteBasicType(UInt_t); continue;
199  case TStreamerInfo::kULong: WriteBasicType(ULong_t); continue;
200  case TStreamerInfo::kULong64: WriteBasicType(ULong64_t); continue;
201  case TStreamerInfo::kFloat16: {
202  Float_t *x=(Float_t*)(arr[0]+ioffset);
203  b.WriteFloat16(x,aElement);
204  continue;
205  }
206  case TStreamerInfo::kDouble32: {
207  Double_t *x=(Double_t*)(arr[0]+ioffset);
208  b.WriteDouble32(x,aElement);
209  continue;
210  }
211 
212  case TStreamerInfo::kBool + kHaveLoop: WriteBasicTypeLoop(Bool_t); continue;
213  case TStreamerInfo::kChar + kHaveLoop: WriteBasicTypeLoop(Char_t); continue;
214  case TStreamerInfo::kShort + kHaveLoop: WriteBasicTypeLoop(Short_t); continue;
215  case TStreamerInfo::kInt + kHaveLoop: WriteBasicTypeLoop(Int_t); continue;
216  case TStreamerInfo::kLong + kHaveLoop: WriteBasicTypeLoop(Long_t); continue;
217  case TStreamerInfo::kLong64 + kHaveLoop: WriteBasicTypeLoop(Long64_t); continue;
218  case TStreamerInfo::kFloat + kHaveLoop: WriteBasicTypeLoop(Float_t); continue;
219  case TStreamerInfo::kDouble + kHaveLoop: WriteBasicTypeLoop(Double_t); continue;
220  case TStreamerInfo::kUChar + kHaveLoop: WriteBasicTypeLoop(UChar_t); continue;
221  case TStreamerInfo::kUShort + kHaveLoop: WriteBasicTypeLoop(UShort_t); continue;
222  case TStreamerInfo::kUInt + kHaveLoop: WriteBasicTypeLoop(UInt_t); continue;
223  case TStreamerInfo::kULong + kHaveLoop: WriteBasicTypeLoop(ULong_t); continue;
224  case TStreamerInfo::kULong64 + kHaveLoop: WriteBasicTypeLoop(ULong64_t); continue;
225  case TStreamerInfo::kFloat16+ kHaveLoop: {
226  for(int k=0; k<narr; ++k) {
227  Float_t *x=(Float_t*)(arr[k]+ioffset);
228  b.WriteFloat16(x,aElement);
229  }
230  continue;
231  }
232  case TStreamerInfo::kDouble32+ kHaveLoop: {
233  for(int k=0; k<narr; ++k) {
234  Double_t *x=(Double_t*)(arr[k]+ioffset);
235  b.WriteDouble32(x,aElement);
236  }
237  continue;
238  }
239 
240  // write array of basic types array[8]
241  case TStreamerInfo::kOffsetL + TStreamerInfo::kBool: WriteBasicArray(Bool_t); continue;
242  case TStreamerInfo::kOffsetL + TStreamerInfo::kChar: WriteBasicArray(Char_t); continue;
243  case TStreamerInfo::kOffsetL + TStreamerInfo::kShort: WriteBasicArray(Short_t); continue;
244  case TStreamerInfo::kOffsetL + TStreamerInfo::kInt: WriteBasicArray(Int_t); continue;
245  case TStreamerInfo::kOffsetL + TStreamerInfo::kLong: WriteBasicArray(Long_t); continue;
246  case TStreamerInfo::kOffsetL + TStreamerInfo::kLong64: WriteBasicArray(Long64_t); continue;
247  case TStreamerInfo::kOffsetL + TStreamerInfo::kFloat: WriteBasicArray(Float_t); continue;
248  case TStreamerInfo::kOffsetL + TStreamerInfo::kDouble: WriteBasicArray(Double_t); continue;
249  case TStreamerInfo::kOffsetL + TStreamerInfo::kUChar: WriteBasicArray(UChar_t); continue;
250  case TStreamerInfo::kOffsetL + TStreamerInfo::kUShort: WriteBasicArray(UShort_t); continue;
251  case TStreamerInfo::kOffsetL + TStreamerInfo::kUInt: WriteBasicArray(UInt_t); continue;
252  case TStreamerInfo::kOffsetL + TStreamerInfo::kULong: WriteBasicArray(ULong_t); continue;
253  case TStreamerInfo::kOffsetL + TStreamerInfo::kULong64:WriteBasicArray(ULong64_t); continue;
254  case TStreamerInfo::kOffsetL + TStreamerInfo::kFloat16: {
255  b.WriteFastArrayFloat16((Float_t*)(arr[0]+ioffset),compinfo[i]->fLength,aElement);
256  continue;
257  }
258  case TStreamerInfo::kOffsetL + TStreamerInfo::kDouble32: {
259  b.WriteFastArrayDouble32((Double_t*)(arr[0]+ioffset),compinfo[i]->fLength,aElement);
260  continue;
261  }
262 
263  case TStreamerInfo::kOffsetL + TStreamerInfo::kBool + kHaveLoop: WriteBasicArrayLoop(Bool_t); continue;
264  case TStreamerInfo::kOffsetL + TStreamerInfo::kChar + kHaveLoop: WriteBasicArrayLoop(Char_t); continue;
265  case TStreamerInfo::kOffsetL + TStreamerInfo::kShort + kHaveLoop: WriteBasicArrayLoop(Short_t); continue;
266  case TStreamerInfo::kOffsetL + TStreamerInfo::kInt + kHaveLoop: WriteBasicArrayLoop(Int_t); continue;
267  case TStreamerInfo::kOffsetL + TStreamerInfo::kLong + kHaveLoop: WriteBasicArrayLoop(Long_t); continue;
268  case TStreamerInfo::kOffsetL + TStreamerInfo::kLong64 + kHaveLoop: WriteBasicArrayLoop(Long64_t); continue;
269  case TStreamerInfo::kOffsetL + TStreamerInfo::kFloat + kHaveLoop: WriteBasicArrayLoop(Float_t); continue;
270  case TStreamerInfo::kOffsetL + TStreamerInfo::kDouble + kHaveLoop: WriteBasicArrayLoop(Double_t); continue;
271  case TStreamerInfo::kOffsetL + TStreamerInfo::kUChar + kHaveLoop: WriteBasicArrayLoop(UChar_t); continue;
272  case TStreamerInfo::kOffsetL + TStreamerInfo::kUShort + kHaveLoop: WriteBasicArrayLoop(UShort_t); continue;
273  case TStreamerInfo::kOffsetL + TStreamerInfo::kUInt + kHaveLoop: WriteBasicArrayLoop(UInt_t); continue;
274  case TStreamerInfo::kOffsetL + TStreamerInfo::kULong + kHaveLoop: WriteBasicArrayLoop(ULong_t); continue;
275  case TStreamerInfo::kOffsetL + TStreamerInfo::kULong64 + kHaveLoop: WriteBasicArrayLoop(ULong64_t); continue;
276  case TStreamerInfo::kOffsetL + TStreamerInfo::kFloat16+ kHaveLoop: {
277  for(int k=0; k<narr; ++k) {
278  b.WriteFastArrayFloat16((Float_t*)(arr[k]+ioffset),compinfo[i]->fLength,aElement);
279  }
280  continue;
281  }
282  case TStreamerInfo::kOffsetL + TStreamerInfo::kDouble32+ kHaveLoop: {
283  for(int k=0; k<narr; ++k) {
284  b.WriteFastArrayDouble32((Double_t*)(arr[k]+ioffset),compinfo[i]->fLength,aElement);
285  }
286  continue;
287  }
288 
289  // write pointer to an array of basic types array[n]
290  case TStreamerInfo::kOffsetP + TStreamerInfo::kBool: WriteBasicPointer(Bool_t); continue;
291  case TStreamerInfo::kOffsetP + TStreamerInfo::kChar: WriteBasicPointer(Char_t); continue;
292  case TStreamerInfo::kOffsetP + TStreamerInfo::kShort: WriteBasicPointer(Short_t); continue;
293  case TStreamerInfo::kOffsetP + TStreamerInfo::kInt: WriteBasicPointer(Int_t); continue;
294  case TStreamerInfo::kOffsetP + TStreamerInfo::kLong: WriteBasicPointer(Long_t); continue;
295  case TStreamerInfo::kOffsetP + TStreamerInfo::kLong64: WriteBasicPointer(Long64_t); continue;
296  case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat: WriteBasicPointer(Float_t); continue;
297  case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble: WriteBasicPointer(Double_t); continue;
298  case TStreamerInfo::kOffsetP + TStreamerInfo::kUChar: WriteBasicPointer(UChar_t); continue;
299  case TStreamerInfo::kOffsetP + TStreamerInfo::kUShort: WriteBasicPointer(UShort_t); continue;
300  case TStreamerInfo::kOffsetP + TStreamerInfo::kUInt: WriteBasicPointer(UInt_t); continue;
301  case TStreamerInfo::kOffsetP + TStreamerInfo::kULong: WriteBasicPointer(ULong_t); continue;
302  case TStreamerInfo::kOffsetP + TStreamerInfo::kULong64:WriteBasicPointer(ULong64_t); continue;
303  case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat16: {
304  int imethod = compinfo[i]->fMethod+eoffset;
305  Int_t *l = (Int_t*)(arr[0]+imethod);
306  Float_t **f = (Float_t**)(arr[0]+ioffset);
307  Float_t *af = *f;
308  if (af && *l) b << Char_t(1);
309  else {b << Char_t(0); continue;}
310  int j;
311  for(j=0;j<compinfo[i]->fLength;j++) {
312  b.WriteFastArrayFloat16(f[j],*l,aElement);
313  }
314  continue;
315  }
316  case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble32: {
317  int imethod = compinfo[i]->fMethod+eoffset;
318  Int_t *l = (Int_t*)(arr[0]+imethod);
319  Double_t **f = (Double_t**)(arr[0]+ioffset);
320  Double_t *af = *f;
321  if (af && *l) b << Char_t(1);
322  else {b << Char_t(0); continue;}
323  int j;
324  for(j=0;j<compinfo[i]->fLength;j++) {
325  b.WriteFastArrayDouble32(f[j],*l,aElement);
326  }
327  continue;
328  }
329 
330  case TStreamerInfo::kOffsetP + TStreamerInfo::kBool + kHaveLoop: WriteBasicPointerLoop(Bool_t); continue;
331  case TStreamerInfo::kOffsetP + TStreamerInfo::kChar + kHaveLoop: WriteBasicPointerLoop(Char_t); continue;
332  case TStreamerInfo::kOffsetP + TStreamerInfo::kShort + kHaveLoop: WriteBasicPointerLoop(Short_t); continue;
333  case TStreamerInfo::kOffsetP + TStreamerInfo::kInt + kHaveLoop: WriteBasicPointerLoop(Int_t); continue;
334  case TStreamerInfo::kOffsetP + TStreamerInfo::kLong + kHaveLoop: WriteBasicPointerLoop(Long_t); continue;
335  case TStreamerInfo::kOffsetP + TStreamerInfo::kLong64 + kHaveLoop: WriteBasicPointerLoop(Long64_t); continue;
336  case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat + kHaveLoop: WriteBasicPointerLoop(Float_t); continue;
337  case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble + kHaveLoop: WriteBasicPointerLoop(Double_t); continue;
338  case TStreamerInfo::kOffsetP + TStreamerInfo::kUChar + kHaveLoop: WriteBasicPointerLoop(UChar_t); continue;
339  case TStreamerInfo::kOffsetP + TStreamerInfo::kUShort + kHaveLoop: WriteBasicPointerLoop(UShort_t); continue;
340  case TStreamerInfo::kOffsetP + TStreamerInfo::kUInt + kHaveLoop: WriteBasicPointerLoop(UInt_t); continue;
341  case TStreamerInfo::kOffsetP + TStreamerInfo::kULong + kHaveLoop: WriteBasicPointerLoop(ULong_t); continue;
342  case TStreamerInfo::kOffsetP + TStreamerInfo::kULong64 + kHaveLoop: WriteBasicPointerLoop(ULong64_t); continue;
343  case TStreamerInfo::kOffsetP + TStreamerInfo::kFloat16+ kHaveLoop: {
344  int imethod = compinfo[i]->fMethod+eoffset;
345  for(int k=0; k<narr; ++k) {
346  Int_t *l = (Int_t*)(arr[k]+imethod);
347  Float_t **f = (Float_t**)(arr[k]+ioffset);
348  Float_t *af = *f;
349  if (af && *l) b << Char_t(1);
350  else {b << Char_t(0); continue;}
351  int j;
352  for(j=0;j<compinfo[i]->fLength;j++) {
353  b.WriteFastArrayFloat16(f[j],*l,aElement);
354  }
355  }
356  continue;
357  }
358  case TStreamerInfo::kOffsetP + TStreamerInfo::kDouble32+ kHaveLoop: {
359  int imethod = compinfo[i]->fMethod+eoffset;
360  for(int k=0; k<narr; ++k) {
361  Int_t *l = (Int_t*)(arr[k]+imethod);
362  Double_t **f = (Double_t**)(arr[k]+ioffset);
363  Double_t *af = *f;
364  if (af && *l) b << Char_t(1);
365  else {b << Char_t(0); continue;}
366  int j;
367  for(j=0;j<compinfo[i]->fLength;j++) {
368  b.WriteFastArrayDouble32(f[j],*l,aElement);
369  }
370  }
371  continue;
372  }
373 
374  case TStreamerInfo::kCounter: {
375  Int_t *x=(Int_t*)(arr[0]+ioffset);
376  b << *x;
377  if (i == last-1) {
378  if (needIncrement) b.DecrementLevel(this);
379  return x[0]; // info used by TBranchElement::FillLeaves
380  }
381  continue;
382  }
383 
384  case TStreamerInfo::kCounter + kHaveLoop : {
385  DOLOOP {
386  Int_t *x=(Int_t*)(arr[k]+ioffset);
387  b << x[0];
388  }
389  continue;
390  }
391 
392 
393  };
394  Bool_t isPreAlloc = 0;
395 
396  switch (compinfo[i]->fType) {
397 
398  // char*
399  case TStreamerInfo::kCharStar: { DOLOOP {
400  char **f = (char**)(arr[k]+ioffset);
401  b.WriteCharStar(*f);
402  }
403  continue; }
404 
405  // special case for TObject::fBits in case of a referenced object
406  case TStreamerInfo::kBits: { DOLOOP {
407  UInt_t *x=(UInt_t*)(arr[k]+ioffset); b << *x;
408  if ((*x & kIsReferenced) != 0) {
409  TObject *obj = (TObject*)(arr[k]+eoffset);
410  TProcessID *pid = TProcessID::GetProcessWithUID(obj->GetUniqueID(),obj);
411  TRefTable *table = TRefTable::GetRefTable();
412  if(table) table->Add(obj->GetUniqueID(),pid);
413  UShort_t pidf = b.WriteProcessID(pid);
414  b << pidf;
415  }
416  }
417  continue; }
418 
419  // Special case for TString, TObject, TNamed
420  case TStreamerInfo::kTString: { DOLOOP{ ((TString*)(arr[k]+ioffset))->Streamer(b); }; continue; }
421  case TStreamerInfo::kTObject: { DOLOOP{ ((TObject*)(arr[k]+ioffset))->TObject::Streamer(b);}; continue; }
422  case TStreamerInfo::kTNamed: { DOLOOP{ ((TNamed *)(arr[k]+ioffset))->TNamed::Streamer(b); }; continue; }
423 
424  case TStreamerInfo::kAnyp: // Class* Class not derived from TObject and with comment field //->
425  case TStreamerInfo::kAnyp + TStreamerInfo::kOffsetL:
426 
427  case TStreamerInfo::kObjectp: // Class * Class derived from TObject and with comment field //->
428  case TStreamerInfo::kObjectp + TStreamerInfo::kOffsetL:
429 
430  isPreAlloc = kTRUE;
431 
432  // Intentional fallthrough now that isPreAlloc is set.
433  case TStreamerInfo::kAnyP: // Class* Class not derived from TObject and no comment
434  case TStreamerInfo::kAnyP + TStreamerInfo::kOffsetL:
435 
436  case TStreamerInfo::kObjectP: // Class* Class derived from TObject
437  case TStreamerInfo::kObjectP + TStreamerInfo::kOffsetL: {
438  TClass *cl = compinfo[i]->fClass;
439  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
440  DOLOOP {
441  Int_t res = b.WriteFastArray((void**)(arr[k]+ioffset),cl,compinfo[i]->fLength,isPreAlloc,pstreamer);
442  if (res==2) {
443  Warning("WriteBuffer",
444  "The actual class of %s::%s is not available. Only the \"%s\" part will be written\n",
445  GetName(),aElement->GetName(),cl->GetName());
446  }
447  }
448  continue;
449  }
450 
451  case TStreamerInfo::kAnyPnoVT: // Class* Class not derived from TObject and no virtual table and no comment
452  case TStreamerInfo::kAnyPnoVT + TStreamerInfo::kOffsetL: {
453  TClass *cl = compinfo[i]->fClass;
454  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
455  DOLOOP {
456  void **f = (void**)(arr[k]+ioffset);
457  int j;
458  for(j=0;j<compinfo[i]->fLength;j++) {
459  void *af = f[j];
460  if (af) b << Char_t(1);
461  else {b << Char_t(0); continue;}
462  if (pstreamer) (*pstreamer)(b, af, 0);
463  else cl->Streamer( af, b );
464  }
465  }
466  continue;
467  }
468 
469 // case TStreamerInfo::kSTLvarp: // Variable size array of STL containers.
470 // {
471 // TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
472 // TClass *cl = compinfo[i]->fClass;
473 // UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
474 // if (pstreamer == 0) {
475 // Int_t size = cl->Size();
476 // Int_t imethod = compinfo[i]->fMethod+eoffset;
477 // DOLOOP {
478 // char **contp = (char**)(arr[k]+ioffset);
479 // const Int_t *counter = (Int_t*)(arr[k]+imethod);
480 // const Int_t sublen = (*counter);
481 
482 // for(int j=0;j<compinfo[i]->fLength;++j) {
483 // char *cont = contp[j];
484 // for(int k=0;k<sublen;++k) {
485 // cl->Streamer( cont, b );
486 // cont += size;
487 // }
488 // }
489 // }
490 // } else {
491 // DOLOOP{(*pstreamer)(b,arr[k]+ioffset,compinfo[i]->fLength);}
492 // }
493 // b.SetByteCount(pos,kTRUE);
494 // }
495 // continue;
496 
497 
498  case TStreamerInfo::kSTLp: // Pointer to container with no virtual table (stl) and no comment
499  case TStreamerInfo::kSTLp + TStreamerInfo::kOffsetL: // array of pointers to container with no virtual table (stl) and no comment
500  {
501  TClass *cl = compinfo[i]->fClass;
502  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
503  TVirtualCollectionProxy *proxy = cl->GetCollectionProxy();
504  TClass* vClass = proxy ? proxy->GetValueClass() : 0;
505 
506  if (!b.TestBit(TBuffer::kCannotHandleMemberWiseStreaming)
507  && proxy && vClass
508  && GetStreamMemberWise()
509  && cl->CanSplit()
510  && !(strspn(aElement->GetTitle(),"||") == 2)
511  && !(vClass->TestBit(TClass::kHasCustomStreamerMember)) ) {
512  // Let's save the collection member-wise.
513 
514  UInt_t pos = b.WriteVersionMemberWise(this->IsA(),kTRUE);
515  b.WriteVersion( vClass, kFALSE );
516  TStreamerInfo *subinfo = (TStreamerInfo*)vClass->GetStreamerInfo();
517  DOLOOP {
518  char **contp = (char**)(arr[k]+ioffset);
519  for(int j=0;j<compinfo[i]->fLength;++j) {
520  char *cont = contp[j];
521  TVirtualCollectionProxy::TPushPop helper( proxy, cont );
522  Int_t nobjects = cont ? proxy->Size() : 0;
523  b << nobjects;
524  subinfo->WriteBufferSTL(b,proxy,nobjects);
525  }
526  }
527  b.SetByteCount(pos,kTRUE);
528  continue;
529  }
530  UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
531  if (pstreamer == 0) {
532  DOLOOP {
533  char **contp = (char**)(arr[k]+ioffset);
534  for(int j=0;j<compinfo[i]->fLength;++j) {
535  char *cont = contp[j];
536  cl->Streamer( cont, b );
537  }
538  }
539  } else {
540  DOLOOP{(*pstreamer)(b,arr[k]+ioffset,compinfo[i]->fLength);}
541  }
542  b.SetByteCount(pos,kTRUE);
543  }
544  continue;
545 
546  case TStreamerInfo::kSTL: // container with no virtual table (stl) and no comment
547  case TStreamerInfo::kSTL + TStreamerInfo::kOffsetL: // array of containers with no virtual table (stl) and no comment
548  {
549  TClass *cl = compinfo[i]->fClass;
550  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
551  TVirtualCollectionProxy *proxy = cl->GetCollectionProxy();
552  TClass* vClass = proxy ? proxy->GetValueClass() : 0;
553  if (!b.TestBit(TBuffer::kCannotHandleMemberWiseStreaming)
554  && proxy && vClass
555  && GetStreamMemberWise() && cl->CanSplit()
556  && !(strspn(aElement->GetTitle(),"||") == 2)
557  && !(vClass->TestBit(TClass::kHasCustomStreamerMember)) ) {
558  // Let's save the collection in member-wise order.
559 
560  UInt_t pos = b.WriteVersionMemberWise(this->IsA(),kTRUE);
561  b.WriteVersion( vClass, kFALSE );
562  TStreamerInfo *subinfo = (TStreamerInfo*)vClass->GetStreamerInfo();
563  DOLOOP {
564  char *obj = (char*)(arr[k]+ioffset);
565  Int_t n = compinfo[i]->fLength;
566  if (!n) n=1;
567  int size = cl->Size();
568 
569  for(Int_t j=0; j<n; j++,obj+=size) {
570  TVirtualCollectionProxy::TPushPop helper( proxy, obj );
571  Int_t nobjects = proxy->Size();
572  b << nobjects;
573  subinfo->WriteBufferSTL(b,proxy,nobjects);
574  }
575  }
576  b.SetByteCount(pos,kTRUE);
577  continue;
578  }
579  UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
580  if (pstreamer == 0) {
581  DOLOOP {
582  b.WriteFastArray((void*)(arr[k]+ioffset),cl,compinfo[i]->fLength,0);
583  }
584  } else {
585  DOLOOP{(*pstreamer)(b,arr[k]+ioffset,compinfo[i]->fLength);}
586  }
587  b.SetByteCount(pos,kTRUE);
588 
589  continue;
590  }
591 
592  case TStreamerInfo::kObject: // Class derived from TObject
593  case TStreamerInfo::kAny: // Class NOT derived from TObject
594  case TStreamerInfo::kOffsetL + TStreamerInfo::kObject:
595  case TStreamerInfo::kAny + TStreamerInfo::kOffsetL: {
596  TClass *cl = compinfo[i]->fClass;
597  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
598  DOLOOP
599  {b.WriteFastArray((void*)(arr[k]+ioffset),cl,compinfo[i]->fLength,pstreamer);}
600  continue;
601  }
602 
603  case TStreamerInfo::kOffsetL + TStreamerInfo::kTString:
604  case TStreamerInfo::kOffsetL + TStreamerInfo::kTObject:
605  case TStreamerInfo::kOffsetL + TStreamerInfo::kTNamed:
606  {
607  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
608  TClass *cl = compinfo[i]->fClass;
609 
610  UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
611  DOLOOP {b.WriteFastArray((void*)(arr[k]+ioffset),cl,compinfo[i]->fLength,pstreamer);}
612  b.SetByteCount(pos,kTRUE);
613  continue;
614  }
615 
616  // Base Class
617  case TStreamerInfo::kBase:
618  if (!(arrayMode&1)) {
619  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
620  if(pstreamer) {
621  // See kStreamer case (similar code)
622  UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
623  DOLOOP{(*pstreamer)(b,arr[k]+ioffset,compinfo[i]->fLength);}
624  b.SetByteCount(pos,kTRUE);
625  } else {
626  DOLOOP { ((TStreamerBase*)aElement)->WriteBuffer(b,arr[k]);}
627  }
628  } else {
629  TClass *cl = compinfo[i]->fClass;
630  TStreamerInfo *binfo = ((TStreamerInfo*)cl->GetStreamerInfo());
631  binfo->WriteBufferAux(b,arr,binfo->fCompFull,0,binfo->fNfulldata,narr,ioffset,arrayMode);
632  }
633  continue;
634 
635  case TStreamerInfo::kStreamer:
636  {
637  TMemberStreamer *pstreamer = compinfo[i]->fStreamer;
638 
639  UInt_t pos = b.WriteVersion(this->IsA(),kTRUE);
640  if (pstreamer == 0) {
641  printf("ERROR, Streamer is null\n");
642  aElement->ls();continue;
643  } else {
644  DOLOOP{(*pstreamer)(b,arr[k]+ioffset,compinfo[i]->fLength);}
645  }
646  b.SetByteCount(pos,kTRUE);
647  }
648  continue;
649 
650  case TStreamerInfo::kStreamLoop:
651  // -- A pointer to a varying-length array of objects.
652  // MyClass* ary; //[n]
653  // -- Or a pointer to a varying-length array of pointers to objects.
654  // MyClass** ary; //[n]
655  case TStreamerInfo::kOffsetL + TStreamerInfo::kStreamLoop:
656  // -- An array of pointers to a varying-length array of objects.
657  // MyClass* ary[d]; //[n]
658  // -- Or an array of pointers to a varying-length array of pointers to objects.
659  // MyClass** ary[d]; //[n]
660  {
661  // Get the class of the data member.
662  TClass* cl = compinfo[i]->fClass;
663  // Get any private streamer which was set for the data member.
664  TMemberStreamer* pstreamer = compinfo[i]->fStreamer;
665  // Which are we, an array of objects or an array of pointers to objects?
666  Bool_t isPtrPtr = (strstr(aElement->GetTypeName(), "**") != 0);
667  if (pstreamer) {
668  // -- We have a private streamer.
669  UInt_t pos = b.WriteVersion(this->IsA(), kTRUE);
670  // Loop over the entries in the clones array or the STL container.
671  for (int k = 0; k < narr; ++k) {
672  // Get a pointer to the counter for the varying length array.
673  Int_t* counter = (Int_t*) (arr[k] /*entry pointer*/ + eoffset /*entry offset*/ + compinfo[i]->fMethod /*counter offset*/);
674  // And call the private streamer, passing it the buffer, the object, and the counter.
675  (*pstreamer)(b, arr[k] /*entry pointer*/ + ioffset /*object offset*/, *counter);
676  }
677  b.SetByteCount(pos, kTRUE);
678  // We are done, next streamer element.
679  continue;
680  }
681  // At this point we do *not* have a private streamer.
682  // Get the version of the file we are writing to.
683  TFile* file = (TFile*) b.GetParent();
684  // By default assume the file version is the newest.
685  Int_t fileVersion = kMaxInt;
686  if (file) {
687  fileVersion = file->GetVersion();
688  }
689  // Write the class version to the buffer.
690  UInt_t pos = b.WriteVersion(this->IsA(), kTRUE);
691  if (fileVersion > 51508) {
692  // -- Newer versions allow polymorphic pointers to objects.
693  // Loop over the entries in the clones array or the STL container.
694  for (int k = 0; k < narr; ++k) {
695  // Get the counter for the varying length array.
696  Int_t vlen = *((Int_t*) (arr[k] /*entry pointer*/ + eoffset /*entry offset*/ + compinfo[i]->fMethod /*counter offset*/));
697  //b << vlen;
698  if (vlen) {
699  // Get a pointer to the array of pointers.
700  char** pp = (char**) (arr[k] /*entry pointer*/ + ioffset /*object offset*/);
701  // Loop over each element of the array of pointers to varying-length arrays.
702  for (Int_t ndx = 0; ndx < compinfo[i]->fLength; ++ndx) {
703  if (!pp[ndx]) {
704  // -- We do not have a pointer to a varying-length array.
705  Error("WriteBufferAux", "The pointer to element %s::%s type %d (%s) is null\n", GetName(), aElement->GetFullName(), compinfo[i]->fType, aElement->GetTypeName());
706  continue;
707  }
708  if (!isPtrPtr) {
709  // -- We are a varying-length array of objects.
710  // Write the entire array of objects to the buffer.
711  // Note: Polymorphism is not allowed here.
712  b.WriteFastArray(pp[ndx], cl, vlen, 0);
713  }
714  else {
715  // -- We are a varying-length array of pointers to objects.
716  // Write the entire array of object pointers to the buffer.
717  // Note: The object pointers are allowed to be polymorphic.
718  b.WriteFastArray((void**) pp[ndx], cl, vlen, kFALSE, 0);
719  } // isPtrPtr
720  } // ndx
721  } // vlen
722  } // k
723  }
724  else {
725  // -- Older versions do *not* allow polymorphic pointers to objects.
726  // Loop over the entries in the clones array or the STL container.
727  for (int k = 0; k < narr; ++k) {
728  // Get the counter for the varying length array.
729  Int_t vlen = *((Int_t*) (arr[k] /*entry pointer*/ + eoffset /*entry offset*/ + compinfo[i]->fMethod /*counter offset*/));
730  //b << vlen;
731  if (vlen) {
732  // Get a pointer to the array of pointers.
733  char** pp = (char**) (arr[k] /*entry pointer*/ + ioffset /*object offset*/);
734  // -- Older versions do *not* allow polymorphic pointers to objects.
735  // Loop over each element of the array of pointers to varying-length arrays.
736  for (Int_t ndx = 0; ndx < compinfo[i]->fLength; ++ndx) {
737  if (!pp[ndx]) {
738  // -- We do not have a pointer to a varying-length array.
739  Error("WriteBufferAux", "The pointer to element %s::%s type %d (%s) is null\n", GetName(), aElement->GetFullName(), compinfo[i]->fType, aElement->GetTypeName());
740  continue;
741  }
742  if (!isPtrPtr) {
743  // -- We are a varying-length array of objects.
744  // Loop over the elements of the varying length array.
745  for (Int_t v = 0; v < vlen; ++v) {
746  // Write the object to the buffer.
747  cl->Streamer(pp[ndx] + (v * cl->Size()), b);
748  } // v
749  }
750  else {
751  // -- We are a varying-length array of pointers to objects.
752  // Loop over the elements of the varying length array.
753  for (Int_t v = 0; v < vlen; ++v) {
754  // Get a pointer to the object pointer.
755  char** r = (char**) pp[ndx];
756  // Write the object to the buffer.
757  cl->Streamer(r[v], b);
758  } // v
759  } // isPtrPtr
760  } // ndx
761  } // vlen
762  } // k
763  } // fileVersion
764  // Backpatch the byte count into the buffer.
765  b.SetByteCount(pos, kTRUE);
766  continue;
767  }
768 
769  case TStreamerInfo::kCacheNew:
770  ((TBufferFile&)b).PushDataCache( new TVirtualArray( aElement->GetClassPointer(), narr ) );
771  continue;
772  case TStreamerInfo::kCacheDelete:
773  delete ((TBufferFile&)b).PopDataCache();
774  continue;
775  case TStreamerInfo::kArtificial:
776 #if 0
777  ROOT::TSchemaRule::WriteFuncPtr_t writefunc = ((TStreamerArtificial*)aElement)->GetWriteFunc();
778  if (writefunc) {
779  DOLOOP( writefunc(arr[k]+eoffset, b) );
780  }
781 #endif
782  continue;
783  case -1:
784  // -- Skip an ignored TObject base class.
785  continue;
786  default:
787  Error("WriteBuffer","The element %s::%s type %d (%s) is not supported yet\n",GetName(),aElement->GetFullName(),compinfo[i]->fType,aElement->GetTypeName());
788  continue;
789  }
790  }
791 
792  if (needIncrement) b.DecrementLevel(this);
793 
794  return 0;
795 }
796 
797 template Int_t TStreamerInfo::WriteBufferAux<char**>(TBuffer &b, char ** const &arr, TCompInfo *const*const compinfo, Int_t first, Int_t last, Int_t narr,Int_t eoffset,Int_t mode);
798 
799 ////////////////////////////////////////////////////////////////////////////////
800 /// Write for STL container. ('first' is an id between -1 and fNfulldata).
801 
802 Int_t TStreamerInfo::WriteBufferSTL(TBuffer &b, TVirtualCollectionProxy *cont, Int_t nc)
803 {
804  if (!nc) return 0;
805  R__ASSERT((unsigned int)nc==cont->Size());
806 
807 
808  int ret = WriteBufferAux(b,*cont,fCompFull,0,fNfulldata,nc,/* eoffset = */ 0,1);
809  return ret;
810 }
811 
812 ////////////////////////////////////////////////////////////////////////////////
813 /// Write for STL container. ('first' is an id between -1 and fNfulldata).
814 /// Note: This is no longer used.
815 
816 Int_t TStreamerInfo::WriteBufferSTLPtrs(TBuffer &b, TVirtualCollectionProxy *cont, Int_t nc, Int_t first, Int_t eoffset )
817 {
818  if (!nc) return 0;
819  R__ASSERT((unsigned int)nc==cont->Size());
820  int ret = WriteBufferAux(b, TPointerCollectionAdapter(cont),fCompFull,first==-1?0:first,first==-1?fNfulldata:first+1,nc,eoffset,1);
821  return ret;
822 }
823 
824 
825 ////////////////////////////////////////////////////////////////////////////////
826 /// General Write. ('first' is an id between -1 and fNdata).
827 /// Note: This is no longer used.
828 
829 Int_t TStreamerInfo::WriteBuffer(TBuffer &b, char *ipointer, Int_t first)
830 {
831  return WriteBufferAux(b,&ipointer,fCompOpt,first==-1?0:first,first==-1?fNdata:first+1,1,0,0);
832 }
833 
834 ////////////////////////////////////////////////////////////////////////////////
835 /// Write for ClonesArray ('first' is an id between -1 and fNfulldata).
836 /// Note: This is no longer used.
837 
838 Int_t TStreamerInfo::WriteBufferClones(TBuffer &b, TClonesArray *clones,
839  Int_t nc, Int_t first, Int_t eoffset)
840 {
841  char **arr = reinterpret_cast<char**>(clones->GetObjectRef(0));
842  return WriteBufferAux(b,arr,fCompFull,first==-1?0:first,first==-1?fNfulldata:first+1,nc,eoffset,1);
843 }
844 
845