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Reference Guide
TBufferFile.h
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1// @(#)root/io:$Id: 697641b2b52ed3d97bb5bde0fb5d2ff4a2f6c24f $
2// Author: Rene Brun 17/01/2007
3
4/*************************************************************************
5 * Copyright (C) 1995-2007, 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#ifndef ROOT_TBufferFile
13#define ROOT_TBufferFile
14
15
16//////////////////////////////////////////////////////////////////////////
17// //
18// TBufferFile //
19// //
20// The concrete implementation of TBuffer for writing/reading to/from a //
21// ROOT file or socket. //
22// //
23//////////////////////////////////////////////////////////////////////////
24
25#include "TBufferIO.h"
26#include "Bytes.h"
27
28#include <vector>
29
30#ifdef R__OLDHPACC
31namespace std {
32 using ::string;
33 using ::vector;
34}
35#endif
36
38class TStreamerInfo;
40class TClass;
41class TVirtualArray;
42namespace TStreamerInfoActions {
43 class TActionSequence;
44}
45
46class TBufferFile : public TBufferIO {
47
48protected:
49 typedef std::vector<TStreamerInfo*> InfoList_t;
50
51 TStreamerInfo *fInfo{nullptr}; ///< Pointer to TStreamerInfo object writing/reading the buffer
52 InfoList_t fInfoStack; ///< Stack of pointers to the TStreamerInfos
53
54 // Default ctor
55 TBufferFile() = default;
56
57 // TBuffer objects cannot be copied or assigned
58 TBufferFile(const TBufferFile &); ///< not implemented
59 void operator=(const TBufferFile &); ///< not implemented
60
61 Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const TClass *clss, const char* classname);
62 virtual void CheckCount(UInt_t offset);
63 UInt_t CheckObject(UInt_t offset, const TClass *cl, Bool_t readClass = kFALSE);
64
65 virtual void WriteObjectClass(const void *actualObjStart, const TClass *actualClass, Bool_t cacheReuse);
66
67public:
68 enum { kStreamedMemberWise = BIT(14) }; //added to version number to know if a collection has been stored member-wise
69
71 TBufferFile(TBuffer::EMode mode, Int_t bufsiz);
72 TBufferFile(TBuffer::EMode mode, Int_t bufsiz, void *buf, Bool_t adopt = kTRUE, ReAllocCharFun_t reallocfunc = 0);
73 virtual ~TBufferFile();
74
75 virtual Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const TClass *clss);
76 virtual Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const char *classname);
77 virtual void SetByteCount(UInt_t cntpos, Bool_t packInVersion = kFALSE);
78
79 virtual void SkipVersion(const TClass *cl = 0);
80 virtual Version_t ReadVersion(UInt_t *start = 0, UInt_t *bcnt = 0, const TClass *cl = 0);
81 virtual Version_t ReadVersionNoCheckSum(UInt_t *start = 0, UInt_t *bcnt = 0);
82 virtual Version_t ReadVersionForMemberWise(const TClass *cl = 0);
83 virtual UInt_t WriteVersion(const TClass *cl, Bool_t useBcnt = kFALSE);
84 virtual UInt_t WriteVersionMemberWise(const TClass *cl, Bool_t useBcnt = kFALSE);
85
86 virtual void *ReadObjectAny(const TClass* cast);
87 virtual void SkipObjectAny();
88
89 virtual void IncrementLevel(TVirtualStreamerInfo* info);
93 virtual void ClassBegin(const TClass*, Version_t = -1) {}
94 virtual void ClassEnd(const TClass*) {}
95 virtual void ClassMember(const char*, const char* = 0, Int_t = -1, Int_t = -1) {}
96
97 virtual Int_t ReadBuf(void *buf, Int_t max);
98 virtual void WriteBuf(const void *buf, Int_t max);
99
100 virtual char *ReadString(char *s, Int_t max);
101 virtual void WriteString(const char *s);
102
103 virtual TClass *ReadClass(const TClass *cl = 0, UInt_t *objTag = 0);
104 virtual void WriteClass(const TClass *cl);
105
106 virtual TObject *ReadObject(const TClass *cl);
107
109
110 // basic types and arrays of basic types
111 virtual void ReadFloat16 (Float_t *f, TStreamerElement *ele=0);
112 virtual void WriteFloat16(Float_t *f, TStreamerElement *ele=0);
113 virtual void ReadDouble32 (Double_t *d, TStreamerElement *ele=0);
114 virtual void WriteDouble32(Double_t *d, TStreamerElement *ele=0);
115 virtual void ReadWithFactor(Float_t *ptr, Double_t factor, Double_t minvalue);
116 virtual void ReadWithNbits(Float_t *ptr, Int_t nbits);
117 virtual void ReadWithFactor(Double_t *ptr, Double_t factor, Double_t minvalue);
118 virtual void ReadWithNbits(Double_t *ptr, Int_t nbits);
119
120 virtual Int_t ReadArray(Bool_t *&b);
121 virtual Int_t ReadArray(Char_t *&c);
122 virtual Int_t ReadArray(UChar_t *&c);
123 virtual Int_t ReadArray(Short_t *&h);
124 virtual Int_t ReadArray(UShort_t *&h);
125 virtual Int_t ReadArray(Int_t *&i);
126 virtual Int_t ReadArray(UInt_t *&i);
127 virtual Int_t ReadArray(Long_t *&l);
128 virtual Int_t ReadArray(ULong_t *&l);
129 virtual Int_t ReadArray(Long64_t *&l);
130 virtual Int_t ReadArray(ULong64_t *&l);
131 virtual Int_t ReadArray(Float_t *&f);
132 virtual Int_t ReadArray(Double_t *&d);
135
136 virtual Int_t ReadStaticArray(Bool_t *b);
137 virtual Int_t ReadStaticArray(Char_t *c);
138 virtual Int_t ReadStaticArray(UChar_t *c);
139 virtual Int_t ReadStaticArray(Short_t *h);
141 virtual Int_t ReadStaticArray(Int_t *i);
142 virtual Int_t ReadStaticArray(UInt_t *i);
143 virtual Int_t ReadStaticArray(Long_t *l);
144 virtual Int_t ReadStaticArray(ULong_t *l);
147 virtual Int_t ReadStaticArray(Float_t *f);
151
152 virtual void ReadFastArray(Bool_t *b, Int_t n);
153 virtual void ReadFastArray(Char_t *c, Int_t n);
154 virtual void ReadFastArrayString(Char_t *c, Int_t n);
155 virtual void ReadFastArray(UChar_t *c, Int_t n);
156 virtual void ReadFastArray(Short_t *h, Int_t n);
157 virtual void ReadFastArray(UShort_t *h, Int_t n);
158 virtual void ReadFastArray(Int_t *i, Int_t n);
159 virtual void ReadFastArray(UInt_t *i, Int_t n);
160 virtual void ReadFastArray(Long_t *l, Int_t n);
161 virtual void ReadFastArray(ULong_t *l, Int_t n);
162 virtual void ReadFastArray(Long64_t *l, Int_t n);
163 virtual void ReadFastArray(ULong64_t *l, Int_t n);
164 virtual void ReadFastArray(Float_t *f, Int_t n);
165 virtual void ReadFastArray(Double_t *d, Int_t n);
166 virtual void ReadFastArrayFloat16(Float_t *f, Int_t n, TStreamerElement *ele=0);
167 virtual void ReadFastArrayDouble32(Double_t *d, Int_t n, TStreamerElement *ele=0);
168 virtual void ReadFastArrayWithFactor(Float_t *ptr, Int_t n, Double_t factor, Double_t minvalue) ;
169 virtual void ReadFastArrayWithNbits(Float_t *ptr, Int_t n, Int_t nbits);
170 virtual void ReadFastArrayWithFactor(Double_t *ptr, Int_t n, Double_t factor, Double_t minvalue);
171 virtual void ReadFastArrayWithNbits(Double_t *ptr, Int_t n, Int_t nbits) ;
172 virtual void ReadFastArray(void *start , const TClass *cl, Int_t n=1, TMemberStreamer *s=0, const TClass* onFileClass=0 );
173 virtual void ReadFastArray(void **startp, const TClass *cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0, const TClass* onFileClass=0);
174
175 virtual void WriteArray(const Bool_t *b, Int_t n);
176 virtual void WriteArray(const Char_t *c, Int_t n);
177 virtual void WriteArray(const UChar_t *c, Int_t n);
178 virtual void WriteArray(const Short_t *h, Int_t n);
179 virtual void WriteArray(const UShort_t *h, Int_t n);
180 virtual void WriteArray(const Int_t *i, Int_t n);
181 virtual void WriteArray(const UInt_t *i, Int_t n);
182 virtual void WriteArray(const Long_t *l, Int_t n);
183 virtual void WriteArray(const ULong_t *l, Int_t n);
184 virtual void WriteArray(const Long64_t *l, Int_t n);
185 virtual void WriteArray(const ULong64_t *l, Int_t n);
186 virtual void WriteArray(const Float_t *f, Int_t n);
187 virtual void WriteArray(const Double_t *d, Int_t n);
188 virtual void WriteArrayFloat16(const Float_t *f, Int_t n, TStreamerElement *ele=0);
189 virtual void WriteArrayDouble32(const Double_t *d, Int_t n, TStreamerElement *ele=0);
190
191 virtual void WriteFastArray(const Bool_t *b, Int_t n);
192 virtual void WriteFastArray(const Char_t *c, Int_t n);
193 virtual void WriteFastArrayString(const Char_t *c, Int_t n);
194 virtual void WriteFastArray(const UChar_t *c, Int_t n);
195 virtual void WriteFastArray(const Short_t *h, Int_t n);
196 virtual void WriteFastArray(const UShort_t *h, Int_t n);
197 virtual void WriteFastArray(const Int_t *i, Int_t n);
198 virtual void WriteFastArray(const UInt_t *i, Int_t n);
199 virtual void WriteFastArray(const Long_t *l, Int_t n);
200 virtual void WriteFastArray(const ULong_t *l, Int_t n);
201 virtual void WriteFastArray(const Long64_t *l, Int_t n);
202 virtual void WriteFastArray(const ULong64_t *l, Int_t n);
203 virtual void WriteFastArray(const Float_t *f, Int_t n);
204 virtual void WriteFastArray(const Double_t *d, Int_t n);
205 virtual void WriteFastArrayFloat16(const Float_t *f, Int_t n, TStreamerElement *ele=0);
206 virtual void WriteFastArrayDouble32(const Double_t *d, Int_t n, TStreamerElement *ele=0);
207 virtual void WriteFastArray(void *start, const TClass *cl, Int_t n=1, TMemberStreamer *s=0);
208 virtual Int_t WriteFastArray(void **startp, const TClass *cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0);
209
210 virtual void StreamObject(void *obj, const std::type_info &typeinfo, const TClass* onFileClass = 0 );
211 virtual void StreamObject(void *obj, const char *className, const TClass* onFileClass = 0 );
212 virtual void StreamObject(void *obj, const TClass *cl, const TClass* onFileClass = 0 );
213 virtual void StreamObject(TObject *obj);
214
215 virtual void ReadBool(Bool_t &b);
216 virtual void ReadChar(Char_t &c);
217 virtual void ReadUChar(UChar_t &c);
218 virtual void ReadShort(Short_t &s);
219 virtual void ReadUShort(UShort_t &s);
220 virtual void ReadInt(Int_t &i);
221 virtual void ReadUInt(UInt_t &i);
222 virtual void ReadLong(Long_t &l);
223 virtual void ReadULong(ULong_t &l);
224 virtual void ReadLong64(Long64_t &l);
225 virtual void ReadULong64(ULong64_t &l);
226 virtual void ReadFloat(Float_t &f);
227 virtual void ReadDouble(Double_t &d);
228 virtual void ReadCharP(Char_t *c);
229 virtual void ReadTString(TString &s);
230 virtual void ReadStdString(std::string *s);
232 virtual void ReadCharStar(char* &s);
233
234 virtual void WriteBool(Bool_t b);
235 virtual void WriteChar(Char_t c);
236 virtual void WriteUChar(UChar_t c);
237 virtual void WriteShort(Short_t s);
238 virtual void WriteUShort(UShort_t s);
239 virtual void WriteInt(Int_t i);
240 virtual void WriteUInt(UInt_t i);
241 virtual void WriteLong(Long_t l);
242 virtual void WriteULong(ULong_t l);
243 virtual void WriteLong64(Long64_t l);
244 virtual void WriteULong64(ULong64_t l);
245 virtual void WriteFloat(Float_t f);
246 virtual void WriteDouble(Double_t d);
247 virtual void WriteCharP(const Char_t *c);
248 virtual void WriteTString(const TString &s);
250 virtual void WriteStdString(const std::string *s);
251 virtual void WriteCharStar(char *s);
252
253 // Utilities for TClass
254 virtual Int_t ReadClassEmulated(const TClass *cl, void *object, const TClass *onfile_class);
255 virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, const TClass *onfile_class);
256 virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, Int_t version, UInt_t start, UInt_t count, const TClass *onfile_class);
257 virtual Int_t WriteClassBuffer(const TClass *cl, void *pointer);
258
259 // Utilites to streamer using sequences.
260 Int_t ApplySequence(const TStreamerInfoActions::TActionSequence &sequence, void *object);
261 Int_t ApplySequenceVecPtr(const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection);
262 Int_t ApplySequence(const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection);
263
264 ClassDef(TBufferFile,0) //concrete implementation of TBuffer for writing/reading to/from a ROOT file or socket.
265};
266
267
268//---------------------- TBufferFile inlines ---------------------------------------
269
270//______________________________________________________________________________
272{
273 if (fBufCur + sizeof(UChar_t) > fBufMax) AutoExpand(fBufSize+sizeof(UChar_t));
274 tobuf(fBufCur, b);
275}
276
277//______________________________________________________________________________
279{
280 if (fBufCur + sizeof(Char_t) > fBufMax) AutoExpand(fBufSize+sizeof(Char_t));
281 tobuf(fBufCur, c);
282}
283
284//______________________________________________________________________________
286{
287 if (fBufCur + sizeof(UChar_t) > fBufMax) AutoExpand(fBufSize+sizeof(UChar_t));
289}
290
291//______________________________________________________________________________
293{
294 if (fBufCur + sizeof(Short_t) > fBufMax) AutoExpand(fBufSize+sizeof(Short_t));
295 tobuf(fBufCur, h);
296}
297
298//______________________________________________________________________________
300{
301 if (fBufCur + sizeof(UShort_t) > fBufMax) AutoExpand(fBufSize+sizeof(UShort_t));
303}
304
305//______________________________________________________________________________
307{
308 if (fBufCur + sizeof(Int_t) > fBufMax) AutoExpand(fBufSize+sizeof(Int_t));
309 tobuf(fBufCur, i);
310}
311
312//______________________________________________________________________________
314{
315 if (fBufCur + sizeof(UInt_t) > fBufMax) AutoExpand(fBufSize+sizeof(UInt_t));
316 tobuf(fBufCur, (Int_t)i);
317}
318
319//______________________________________________________________________________
321{
322 if (fBufCur + sizeof(Long_t) > fBufMax) AutoExpand(fBufSize+sizeof(Long_t));
323 tobuf(fBufCur, l);
324}
325
326//______________________________________________________________________________
328{
329 if (fBufCur + sizeof(ULong_t) > fBufMax) AutoExpand(fBufSize+sizeof(ULong_t));
331}
332
333//______________________________________________________________________________
335{
336 if (fBufCur + sizeof(Long64_t) > fBufMax) AutoExpand(fBufSize+sizeof(Long64_t));
337 tobuf(fBufCur, ll);
338}
339
340//______________________________________________________________________________
342{
343 if (fBufCur + sizeof(ULong64_t) > fBufMax) AutoExpand(fBufSize+sizeof(ULong64_t));
344 tobuf(fBufCur, (Long64_t)ll);
345}
346
347//______________________________________________________________________________
349{
350 if (fBufCur + sizeof(Float_t) > fBufMax) AutoExpand(fBufSize+sizeof(Float_t));
351 tobuf(fBufCur, f);
352}
353
354//______________________________________________________________________________
356{
357 if (fBufCur + sizeof(Double_t) > fBufMax) AutoExpand(fBufSize+sizeof(Double_t));
358 tobuf(fBufCur, d);
359}
360
361//______________________________________________________________________________
363{
364 WriteString(c);
365}
366
367//______________________________________________________________________________
369{
370 frombuf(fBufCur, &b);
371}
372
373//______________________________________________________________________________
375{
376 frombuf(fBufCur, &c);
377}
378
379//______________________________________________________________________________
381{
383}
384
385//______________________________________________________________________________
387{
388 frombuf(fBufCur, &h);
389}
390
391//______________________________________________________________________________
393{
395}
396
397//______________________________________________________________________________
399{
400 frombuf(fBufCur, &i);
401}
402
403//______________________________________________________________________________
405{
407}
408
409
410// in implementation file because special case with old version
411//______________________________________________________________________________
412//inline void TBufferFile::ReadLong(Long_t &ll)
413//{
414// frombuf(fBufCur, &ll);
415//}
416
417//______________________________________________________________________________
419{
421}
422
423
424//______________________________________________________________________________
426{
427 frombuf(fBufCur, &ll);
428}
429
430//______________________________________________________________________________
432{
434}
435
436//______________________________________________________________________________
438{
439 frombuf(fBufCur, &f);
440}
441
442//______________________________________________________________________________
444{
445 frombuf(fBufCur, &d);
446}
447
448//______________________________________________________________________________
450{
451 ReadString(c, -1);
452}
453
454//______________________________________________________________________________
456 { return TBufferFile::ReadArray((Char_t *&)c); }
457//______________________________________________________________________________
459 { return TBufferFile::ReadArray((Short_t *&)h); }
460//______________________________________________________________________________
462 { return TBufferFile::ReadArray((Int_t *&)i); }
463//______________________________________________________________________________
465 { return TBufferFile::ReadArray((Long_t *&)l); }
466//______________________________________________________________________________
468 { return TBufferFile::ReadArray((Long64_t *&)ll); }
469
470//______________________________________________________________________________
473//______________________________________________________________________________
476//______________________________________________________________________________
478 { return TBufferFile::ReadStaticArray((Int_t *)i); }
479//______________________________________________________________________________
482//______________________________________________________________________________
484 { return TBufferFile::ReadStaticArray((Long64_t *)ll); }
485
486//______________________________________________________________________________
489//______________________________________________________________________________
492//______________________________________________________________________________
495//______________________________________________________________________________
498//______________________________________________________________________________
501
502//______________________________________________________________________________
504 { TBufferFile::WriteArray((const Char_t *)c, n); }
505//______________________________________________________________________________
507 { TBufferFile::WriteArray((const Short_t *)h, n); }
508//______________________________________________________________________________
509inline void TBufferFile::WriteArray(const UInt_t *i, Int_t n)
510 { TBufferFile::WriteArray((const Int_t *)i, n); }
511//______________________________________________________________________________
513 { TBufferFile::WriteArray((const Long64_t *)ll, n); }
514
515//______________________________________________________________________________
517 { TBufferFile::WriteFastArray((const Char_t *)c, n); }
518//______________________________________________________________________________
520 { TBufferFile::WriteFastArray((const Short_t *)h, n); }
521//______________________________________________________________________________
523 { TBufferFile::WriteFastArray((const Int_t *)i, n); }
524//______________________________________________________________________________
526 { TBufferFile::WriteFastArray((const Long64_t *)ll, n); }
527
528#endif
void frombuf(char *&buf, Bool_t *x)
Definition: Bytes.h:280
void tobuf(char *&buf, Bool_t x)
Definition: Bytes.h:57
#define d(i)
Definition: RSha256.hxx:102
#define b(i)
Definition: RSha256.hxx:100
#define f(i)
Definition: RSha256.hxx:104
#define c(i)
Definition: RSha256.hxx:101
#define h(i)
Definition: RSha256.hxx:106
unsigned short UShort_t
Definition: RtypesCore.h:36
int Int_t
Definition: RtypesCore.h:41
short Version_t
Definition: RtypesCore.h:61
unsigned char UChar_t
Definition: RtypesCore.h:34
char Char_t
Definition: RtypesCore.h:29
unsigned int UInt_t
Definition: RtypesCore.h:42
const Bool_t kFALSE
Definition: RtypesCore.h:88
unsigned long ULong_t
Definition: RtypesCore.h:51
long Long_t
Definition: RtypesCore.h:50
bool Bool_t
Definition: RtypesCore.h:59
short Short_t
Definition: RtypesCore.h:35
double Double_t
Definition: RtypesCore.h:55
long long Long64_t
Definition: RtypesCore.h:69
unsigned long long ULong64_t
Definition: RtypesCore.h:70
float Float_t
Definition: RtypesCore.h:53
const Bool_t kTRUE
Definition: RtypesCore.h:87
#define ClassDef(name, id)
Definition: Rtypes.h:324
#define BIT(n)
Definition: Rtypes.h:82
char *(* ReAllocCharFun_t)(char *, size_t, size_t)
Definition: TStorage.h:30
The concrete implementation of TBuffer for writing/reading to/from a ROOT file or socket.
Definition: TBufferFile.h:46
virtual void WriteCharP(const Char_t *c)
Definition: TBufferFile.h:362
virtual void ReadCharStar(char *&s)
Read char* from TBuffer.
virtual void CheckCount(UInt_t offset)
Check if offset is not too large (< kMaxMapCount) when writing.
virtual void ReadFastArrayString(Char_t *c, Int_t n)
Read array of n characters from the I/O buffer.
virtual void StreamObject(void *obj, const std::type_info &typeinfo, const TClass *onFileClass=0)
Stream an object given its C++ typeinfo information.
TVirtualStreamerInfo * GetInfo()
Definition: TBufferFile.h:92
TBufferFile()=default
virtual void WriteString(const char *s)
Write string to I/O buffer.
virtual ~TBufferFile()
Delete an I/O buffer object.
virtual void ReadFloat(Float_t &f)
Definition: TBufferFile.h:437
virtual void ReadUShort(UShort_t &s)
Definition: TBufferFile.h:392
virtual void WriteStdString(const std::string *s)
Write std::string to TBuffer.
virtual void ReadStdString(std::string *s)
Read std::string from TBuffer.
virtual void ReadWithNbits(Float_t *ptr, Int_t nbits)
Read a Float16_t from the buffer when the number of bits is specified (explicitly or not) see comment...
virtual void WriteFastArrayString(const Char_t *c, Int_t n)
Write array of n characters into the I/O buffer.
void operator=(const TBufferFile &)
not implemented
virtual void WriteFastArrayDouble32(const Double_t *d, Int_t n, TStreamerElement *ele=0)
Write array of n doubles (as float) into the I/O buffer.
virtual void WriteInt(Int_t i)
Definition: TBufferFile.h:306
virtual void ReadULong64(ULong64_t &l)
Definition: TBufferFile.h:431
virtual void ReadShort(Short_t &s)
Definition: TBufferFile.h:386
virtual void WriteFastArrayFloat16(const Float_t *f, Int_t n, TStreamerElement *ele=0)
Write array of n floats (as truncated float) into the I/O buffer.
virtual Int_t ReadClassEmulated(const TClass *cl, void *object, const TClass *onfile_class)
Read emulated class.
TBufferFile(const TBufferFile &)
not implemented
virtual void WriteDouble32(Double_t *d, TStreamerElement *ele=0)
Write a Double32_t to the buffer.
virtual void SkipVersion(const TClass *cl=0)
Skip class version from I/O buffer.
virtual Version_t ReadVersion(UInt_t *start=0, UInt_t *bcnt=0, const TClass *cl=0)
Read class version from I/O buffer.
virtual void ReadFastArray(Bool_t *b, Int_t n)
Read array of n bools from the I/O buffer.
virtual void WriteArray(const Bool_t *b, Int_t n)
Write array of n bools into the I/O buffer.
virtual void ReadFastArrayFloat16(Float_t *f, Int_t n, TStreamerElement *ele=0)
Read array of n floats (written as truncated float) from the I/O buffer.
virtual void WriteUChar(UChar_t c)
Definition: TBufferFile.h:285
virtual TObject * ReadObject(const TClass *cl)
Read object from I/O buffer.
Int_t ApplySequence(const TStreamerInfoActions::TActionSequence &sequence, void *object)
Read one collection of objects from the buffer using the StreamerInfoLoopAction.
virtual void WriteULong(ULong_t l)
Definition: TBufferFile.h:327
virtual void ReadLong64(Long64_t &l)
Definition: TBufferFile.h:425
virtual void WriteFloat16(Float_t *f, TStreamerElement *ele=0)
Write a Float16_t to the buffer.
virtual void ReadLong(Long_t &l)
Read Long from TBuffer.
virtual void ReadWithFactor(Float_t *ptr, Double_t factor, Double_t minvalue)
Read a Float16_t from the buffer when the factor and minimum value have been specified see comments a...
virtual void WriteClass(const TClass *cl)
Write class description to I/O buffer.
virtual void WriteBool(Bool_t b)
Definition: TBufferFile.h:271
virtual Version_t ReadVersionNoCheckSum(UInt_t *start=0, UInt_t *bcnt=0)
Read class version from I/O buffer, when the caller knows for sure that there is no checksum written/...
virtual void WriteFloat(Float_t f)
Definition: TBufferFile.h:348
virtual void WriteFastArray(const Bool_t *b, Int_t n)
Write array of n bools into the I/O buffer.
virtual Int_t ReadArrayDouble32(Double_t *&d, TStreamerElement *ele=0)
Read array of doubles (written as float) from the I/O buffer.
virtual void ReadFastArrayWithNbits(Float_t *ptr, Int_t n, Int_t nbits)
Read array of n floats (written as truncated float) from the I/O buffer.
virtual void ReadFastArrayWithFactor(Float_t *ptr, Int_t n, Double_t factor, Double_t minvalue)
Read array of n floats (written as truncated float) from the I/O buffer.
Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const TClass *clss, const char *classname)
Check byte count with current buffer position.
@ kStreamedMemberWise
Definition: TBufferFile.h:68
virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, const TClass *onfile_class)
Deserialize information from a buffer into an object.
virtual void ReadUInt(UInt_t &i)
Definition: TBufferFile.h:404
virtual void WriteBuf(const void *buf, Int_t max)
Write max bytes from buf into the I/O buffer.
virtual void WriteDouble(Double_t d)
Definition: TBufferFile.h:355
virtual void ReadChar(Char_t &c)
Definition: TBufferFile.h:374
virtual void SkipObjectAny()
Skip any kind of object from buffer.
virtual void WriteTString(const TString &s)
Write TString to TBuffer.
virtual void ReadTString(TString &s)
Read TString from TBuffer.
virtual void ReadBool(Bool_t &b)
Definition: TBufferFile.h:368
virtual void ClassMember(const char *, const char *=0, Int_t=-1, Int_t=-1)
Definition: TBufferFile.h:95
virtual void ReadInt(Int_t &i)
Definition: TBufferFile.h:398
virtual void WriteShort(Short_t s)
Definition: TBufferFile.h:292
virtual void ReadDouble32(Double_t *d, TStreamerElement *ele=0)
Read a Double32_t from the buffer, see comments about Double32_t encoding at TBufferFile::WriteDouble...
virtual void WriteArrayDouble32(const Double_t *d, Int_t n, TStreamerElement *ele=0)
Write array of n doubles (as float) into the I/O buffer.
virtual void WriteUShort(UShort_t s)
Definition: TBufferFile.h:299
virtual void WriteUInt(UInt_t i)
Definition: TBufferFile.h:313
virtual void WriteArrayFloat16(const Float_t *f, Int_t n, TStreamerElement *ele=0)
Write array of n floats (as truncated float) into the I/O buffer.
virtual Int_t ReadArrayFloat16(Float_t *&f, TStreamerElement *ele=0)
Read array of floats (written as truncated float) from the I/O buffer.
virtual void ReadFloat16(Float_t *f, TStreamerElement *ele=0)
Read a Float16_t from the buffer, see comments about Float16_t encoding at TBufferFile::WriteFloat16(...
virtual void WriteLong(Long_t l)
Definition: TBufferFile.h:320
Int_t ApplySequenceVecPtr(const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection)
Read one collection of objects from the buffer using the StreamerInfoLoopAction.
virtual void ReadDouble(Double_t &d)
Definition: TBufferFile.h:443
virtual Int_t ReadArray(Bool_t *&b)
Read array of bools from the I/O buffer.
virtual Int_t ReadStaticArray(Bool_t *b)
Read array of bools from the I/O buffer.
virtual void WriteCharStar(char *s)
Write char* into TBuffer.
virtual void WriteLong64(Long64_t l)
Definition: TBufferFile.h:334
virtual void WriteULong64(ULong64_t l)
Definition: TBufferFile.h:341
virtual void WriteChar(Char_t c)
Definition: TBufferFile.h:278
std::vector< TStreamerInfo * > InfoList_t
Definition: TBufferFile.h:49
virtual void IncrementLevel(TVirtualStreamerInfo *info)
Increment level.
UInt_t CheckObject(UInt_t offset, const TClass *cl, Bool_t readClass=kFALSE)
Check for object in the read map.
virtual Version_t ReadVersionForMemberWise(const TClass *cl=0)
Read class version from I/O buffer.
InfoList_t fInfoStack
Stack of pointers to the TStreamerInfos.
Definition: TBufferFile.h:52
virtual void ClassBegin(const TClass *, Version_t=-1)
Definition: TBufferFile.h:93
virtual void ReadFastArrayDouble32(Double_t *d, Int_t n, TStreamerElement *ele=0)
Read array of n doubles (written as float) from the I/O buffer.
virtual Int_t WriteClassBuffer(const TClass *cl, void *pointer)
Function called by the Streamer functions to serialize object at p to buffer b.
virtual void ReadCharP(Char_t *c)
Definition: TBufferFile.h:449
virtual Int_t ReadStaticArrayDouble32(Double_t *d, TStreamerElement *ele=0)
Read array of doubles (written as float) from the I/O buffer.
virtual void ReadUChar(UChar_t &c)
Definition: TBufferFile.h:380
virtual void ClassEnd(const TClass *)
Definition: TBufferFile.h:94
virtual char * ReadString(char *s, Int_t max)
Read string from I/O buffer.
virtual void SetByteCount(UInt_t cntpos, Bool_t packInVersion=kFALSE)
Set byte count at position cntpos in the buffer.
virtual void DecrementLevel(TVirtualStreamerInfo *)
Decrement level.
virtual void SetStreamerElementNumber(TStreamerElement *, Int_t)
Definition: TBufferFile.h:90
virtual TClass * ReadClass(const TClass *cl=0, UInt_t *objTag=0)
Read class definition from I/O buffer.
virtual void * ReadObjectAny(const TClass *cast)
Read object from I/O buffer.
virtual Int_t ReadBuf(void *buf, Int_t max)
Read max bytes from the I/O buffer into buf.
virtual Int_t ReadStaticArrayFloat16(Float_t *f, TStreamerElement *ele=0)
Read array of floats (written as truncated float) from the I/O buffer.
virtual void WriteObjectClass(const void *actualObjStart, const TClass *actualClass, Bool_t cacheReuse)
Write object to I/O buffer.
TStreamerInfo * fInfo
Pointer to TStreamerInfo object writing/reading the buffer.
Definition: TBufferFile.h:51
virtual UInt_t WriteVersionMemberWise(const TClass *cl, Bool_t useBcnt=kFALSE)
Write class version to I/O buffer after setting the kStreamedMemberWise bit in the version number.
virtual void ReadULong(ULong_t &l)
Definition: TBufferFile.h:418
virtual UInt_t WriteVersion(const TClass *cl, Bool_t useBcnt=kFALSE)
Write class version to I/O buffer.
Direct subclass of TBuffer, implements common methods for TBufferFile and TBufferText classes.
Definition: TBufferIO.h:30
virtual Bool_t CheckObject(const TObject *obj)
Check if the specified object is already in the buffer.
Definition: TBufferIO.cxx:225
virtual void WriteStdString(const std::string *s)=0
Int_t fBufSize
Definition: TBuffer.h:47
char * fBufMax
Definition: TBuffer.h:50
char * fBufCur
Definition: TBuffer.h:49
void AutoExpand(Int_t size_needed)
Automatically calculate a new size and expand the buffer to fit at least size_needed.
Definition: TBuffer.cxx:152
virtual void ReadStdString(std::string *s)=0
The ROOT global object gROOT contains a list of all defined classes.
Definition: TClass.h:75
Mother of all ROOT objects.
Definition: TObject.h:37
Describe Streamer information for one class version.
Definition: TStreamerInfo.h:43
Basic string class.
Definition: TString.h:131
Wrapper around an object and giving indirect access to its content even if the object is not of a cla...
Definition: TVirtualArray.h:26
Abstract Interface class describing Streamer information for one class.
const Int_t n
Definition: legend1.C:16
static constexpr double s
STL namespace.
auto * l
Definition: textangle.C:4