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f2dc6b20 | 1 | // Author: Cvetan Cheshkov 10/10/2005 |
2 | ||
3 | /************************************************************************** | |
4 | * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
5 | * * | |
6 | * Author: The ALICE Off-line Project. * | |
7 | * Contributors are mentioned in the code where appropriate. * | |
8 | * * | |
9 | * Permission to use, copy, modify and distribute this software and its * | |
10 | * documentation strictly for non-commercial purposes is hereby granted * | |
11 | * without fee, provided that the above copyright notice appears in all * | |
12 | * copies and that both the copyright notice and this permission notice * | |
13 | * appear in the supporting documentation. The authors make no claims * | |
14 | * about the suitability of this software for any purpose. It is * | |
15 | * provided "as is" without express or implied warranty. * | |
16 | **************************************************************************/ | |
17 | ||
18 | ////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // AliRawEventHeaderBase // | |
21 | // This a new versioning scheme for raw data root-ification and reading // | |
22 | // For details look at offline weekly meeting 20/10/2005 // | |
23 | // // | |
24 | ////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | #include <unistd.h> | |
27 | ||
28 | #include <TClass.h> | |
29 | #include <TDataMember.h> | |
30 | #include <TMethodCall.h> | |
31 | ||
32 | #include "AliLog.h" | |
33 | #include "AliRawEventHeaderBase.h" | |
34 | ||
35 | ||
36 | ClassImp(AliRawEventHeaderBase) | |
37 | ||
f3c1e83c | 38 | //______________________________________________________________________________ |
39 | AliRawEventHeaderBase::AliRawEventHeaderBase(): | |
40 | fSize(0), | |
41 | fMagic(0), | |
42 | fHeadSize(0), | |
43 | fVersion(0), | |
44 | fExtendedDataSize(0), | |
45 | fExtendedData(NULL), | |
46 | fIsSwapped(kFALSE) | |
47 | { | |
48 | // Default constructor | |
49 | } | |
f2dc6b20 | 50 | |
51 | //______________________________________________________________________________ | |
52 | void *AliRawEventHeaderBase::HeaderBegin() | |
53 | { | |
54 | // Returns the pointer to the first data member | |
55 | // beyond the base class data members | |
56 | ||
57 | TList *datalist = IsA()->GetListOfDataMembers(); | |
58 | TIter next(datalist); | |
59 | TDataMember *member = (TDataMember *)next(); | |
60 | ||
61 | if(!strcmp(member->GetTypeName(),"TClass")) | |
62 | member = (TDataMember *)next(); | |
63 | ||
64 | return (void *)((char *)this+member->GetOffset()); | |
65 | } | |
66 | ||
67 | //______________________________________________________________________________ | |
68 | Int_t AliRawEventHeaderBase::HeaderSize() const | |
69 | { | |
70 | // Returns the size of the data members list | |
71 | // beyond the base class data members | |
72 | ||
73 | Int_t size = 0; | |
74 | ||
75 | TList *datalist = IsA()->GetListOfDataMembers(); | |
76 | TIter next(datalist); | |
77 | TDataMember *member; | |
78 | while ((member=(TDataMember *)next()) != 0x0) { | |
79 | if (!strcmp(member->GetTypeName(),"TClass")) continue; | |
80 | UInt_t unitsize = member->GetUnitSize(); | |
81 | UInt_t ndim = member->GetArrayDim(); | |
82 | if (ndim == 0) | |
83 | size += unitsize; | |
84 | else | |
85 | for(UInt_t i=0;i<ndim;i++) size += member->GetMaxIndex(i)*unitsize; | |
86 | } | |
87 | ||
88 | return size; | |
89 | } | |
90 | ||
91 | //______________________________________________________________________________ | |
92 | void AliRawEventHeaderBase::Swap() | |
93 | { | |
94 | // Swap base header data. | |
95 | // Update the fIsSwapped flag which | |
96 | // is then use to copy in an appropriate way | |
97 | // the rest of the header data from the raw data stream | |
98 | ||
99 | if (IsSwapped()) { | |
100 | fIsSwapped = kTRUE; | |
101 | fSize = net2host(fSize); | |
102 | fMagic = net2host(fMagic); | |
103 | fHeadSize = net2host(fHeadSize); | |
104 | fVersion = net2host(fVersion); | |
105 | } | |
106 | } | |
107 | ||
108 | //______________________________________________________________________________ | |
109 | const char *AliRawEventHeaderBase::GetTypeName() | |
110 | { | |
111 | // Get event type as a string. | |
112 | // Will fail in case data header | |
113 | // does not contain eventType field | |
114 | Int_t eventType = Get("Type"); | |
115 | ||
116 | switch (eventType) { | |
117 | case kStartOfRun: | |
118 | return "START_OF_RUN"; | |
119 | break; | |
120 | case kEndOfRun: | |
121 | return "END_OF_RUN"; | |
122 | break; | |
123 | case kStartOfRunFiles: | |
124 | return "START_OF_RUN_FILES"; | |
125 | break; | |
126 | case kEndOfRunFiles: | |
127 | return "END_OF_RUN_FILES"; | |
128 | break; | |
129 | case kStartOfBurst: | |
130 | return "START_OF_BURST"; | |
131 | break; | |
132 | case kEndOfBurst: | |
133 | return "END_OF_BURST"; | |
134 | break; | |
135 | case kPhysicsEvent: | |
136 | return "PHYSICS_EVENT"; | |
137 | break; | |
138 | case kCalibrationEvent: | |
139 | return "CALIBRATION_EVENT"; | |
140 | break; | |
141 | case kFormatError: | |
142 | return "EVENT_FORMAT_ERROR"; | |
143 | break; | |
cce65444 | 144 | case kStartOfData: |
145 | return "START_OF_DATA"; | |
146 | break; | |
147 | case kEndOfData: | |
148 | return "END_OF_DATA"; | |
149 | break; | |
150 | case kSystemSoftwareTriggerEvent: | |
151 | return "SYSTEM_SOFTWARE_TRIGGER_EVENT"; | |
152 | break; | |
153 | case kDetectorSoftwareTriggerEvent: | |
154 | return "DETECTOR_SOFTWARE_TRIGGER_EVENT"; | |
155 | break; | |
f2dc6b20 | 156 | default: |
157 | return "UNKNOWN EVENT TYPE NUMBER"; | |
158 | break; | |
159 | } | |
160 | } | |
161 | ||
162 | //______________________________________________________________________________ | |
163 | AliRawEventHeaderBase* AliRawEventHeaderBase::Create(char*& data) | |
164 | { | |
165 | // Static method to create AliRawEventHeaderVX object | |
166 | // The actual header class version is taken from the | |
167 | // raw data | |
168 | ||
169 | // First create AlirawEVentHeaderBase class object | |
170 | AliRawEventHeaderBase header; | |
171 | ||
172 | // Copy the first common part of the raw data header | |
173 | memcpy(header.HeaderBaseBegin(), data, header.HeaderBaseSize()); | |
174 | ||
175 | // Swap header data if needed | |
176 | if (header.IsSwapped()) | |
177 | header.Swap(); | |
178 | ||
179 | // Is header valid... | |
180 | if (!header.IsValid()) { | |
181 | AliFatalClass("Invalid header format!"); | |
182 | // try recovery... how? | |
183 | return 0x0; | |
184 | } | |
185 | ||
186 | if (header.GetEventSize() < (UInt_t)header.HeaderBaseSize()) { | |
187 | AliFatalClass("Invalid header base size!"); | |
188 | // try recovery... how? | |
189 | return 0x0; | |
190 | } | |
191 | ||
192 | // Now check the DATE version and create the corresponding header | |
193 | // class object | |
194 | UInt_t version = header.GetVersion(); | |
195 | UInt_t majorversion = (version>>16)&0x0000ffff; | |
196 | UInt_t minorversion = version&0x0000ffff; | |
197 | TString classname; | |
198 | classname.Form("AliRawEventHeaderV%d_%d",majorversion,minorversion); | |
199 | ||
200 | TClass *tcl = TClass::GetClass(classname.Data()); | |
201 | if (!tcl) { | |
202 | AliFatalClass(Form("Unknown header version (%s)!",classname.Data())); | |
203 | return 0x0; | |
204 | } | |
205 | ||
206 | // header.Dump(); tcl->Dump(); | |
207 | ||
208 | AliRawEventHeaderBase *hdr = (AliRawEventHeaderBase *)tcl->New(); | |
209 | if (!hdr) { | |
210 | AliFatalClass(Form("Can not create object of class %s",classname.Data())); | |
211 | return 0x0; | |
212 | } | |
213 | ||
214 | // Copy the base header data members and initialize other data members | |
215 | memcpy(hdr->HeaderBaseBegin(),header.HeaderBaseBegin(), header.HeaderBaseSize()); | |
216 | memset(hdr->HeaderBegin(),0, hdr->HeaderSize()); | |
217 | hdr->fIsSwapped = header.fIsSwapped; | |
218 | ||
219 | // Consistency check | |
220 | if (hdr->GetEventSize() < ((UInt_t)hdr->HeaderBaseSize() + (UInt_t)hdr->HeaderSize())) { | |
221 | AliFatalClass(Form("Invalid header size (%d < %d +%d)!", | |
222 | hdr->GetEventSize(),hdr->HeaderBaseSize(),hdr->HeaderSize())); | |
223 | // try recovery... how? | |
224 | return 0x0; | |
225 | } | |
226 | ||
227 | // Check for the presence of header extension and its size | |
228 | Int_t extsize = (Int_t)hdr->GetHeadSize() - (hdr->HeaderBaseSize() + hdr->HeaderSize()); | |
229 | if (extsize < 0) { | |
230 | AliFatalClass(Form("Invalid header size (%d < %d +%d)!", | |
231 | hdr->GetHeadSize(),hdr->HeaderBaseSize(),hdr->HeaderSize())); | |
232 | // try recovery... how? | |
233 | return 0x0; | |
234 | } | |
235 | else { | |
236 | if (extsize > 0) { | |
237 | hdr->SetExtendedDataSize(extsize); | |
238 | char *extdata = new char[extsize]; | |
239 | memset(extdata,0,extsize); | |
240 | hdr->SetExtendedData(extdata); | |
241 | } | |
242 | } | |
243 | ||
244 | return hdr; | |
245 | } | |
246 | ||
247 | //______________________________________________________________________________ | |
248 | Int_t AliRawEventHeaderBase::ReadHeader(char*& data) | |
249 | { | |
250 | // Read header info from DATE data stream. | |
251 | // Returns bytes read | |
252 | ||
253 | Long_t start = (Long_t)data; | |
254 | // Swap header data if needed | |
255 | if (DataIsSwapped()) { | |
256 | swab(data,HeaderBaseBegin(), HeaderBaseSize()); | |
257 | data += HeaderBaseSize(); | |
258 | swab(data, HeaderBegin(), HeaderSize()); | |
259 | data += HeaderSize(); | |
260 | if(GetExtendedDataSize()>0) { | |
261 | swab(data, GetExtendedData(), GetExtendedDataSize()); | |
262 | data += GetExtendedDataSize(); | |
263 | } | |
264 | } | |
265 | else { | |
266 | memcpy(HeaderBaseBegin(), data, HeaderBaseSize()); | |
267 | data += HeaderBaseSize(); | |
268 | memcpy(HeaderBegin(), data, HeaderSize()); | |
269 | data += HeaderSize(); | |
270 | if(GetExtendedDataSize()>0) { | |
271 | memcpy(GetExtendedData(), data, GetExtendedDataSize()); | |
272 | data += GetExtendedDataSize(); | |
273 | } | |
274 | } | |
275 | ||
276 | return (Int_t)((Long_t)data - start); | |
277 | } | |
278 | ||
279 | //______________________________________________________________________________ | |
280 | UInt_t AliRawEventHeaderBase::Get(const char *datamember) | |
281 | { | |
282 | // The method to get a data member from the header object | |
283 | // Except for the data members of the base class, all the | |
284 | // other header data should be retrieved ONLY by this method | |
285 | // The name of the data member should be supplied without "f" | |
286 | // in front | |
287 | ||
288 | char buf[256] = "f"; | |
289 | strcat(buf,datamember); | |
290 | ||
291 | TDataMember *member = IsA()->GetDataMember(buf); | |
292 | if (!member) { | |
293 | AliFatal(Form("No data member %s is found! Check the raw data version!",buf)); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | if (member->GetArrayDim() != 0) { | |
298 | AliFatal(Form("Member %s is an array! Use the GetP() method!",buf)); | |
299 | return 0; | |
300 | } | |
301 | ||
302 | if (strcmp(member->GetTypeName(),"UInt_t") != 0) { | |
303 | AliFatal(Form("Member %s is not of type UInt_t!",buf)); | |
304 | return 0; | |
305 | } | |
306 | ||
307 | const void *pointer = (char *)this+member->GetOffset(); | |
308 | ||
309 | return *((UInt_t *)pointer); | |
310 | } | |
311 | ||
312 | //______________________________________________________________________________ | |
313 | const UInt_t* AliRawEventHeaderBase::GetP(const char *datamember) | |
314 | { | |
315 | // The method to get a data member from the header object | |
316 | // Except for the data members of the base class, all the | |
317 | // other header data should be retrieved ONLY by this method | |
318 | // The name of the data member should be supplied without "f" | |
319 | // in front | |
320 | ||
321 | char buf[256] = "f"; | |
322 | strcat(buf,datamember); | |
323 | ||
324 | TDataMember *member = IsA()->GetDataMember(buf); | |
325 | if (!member) { | |
326 | AliFatal(Form("No data member %s is found! Check the raw data version!",buf)); | |
327 | return 0; | |
328 | } | |
329 | ||
39848565 | 330 | // if (member->GetArrayDim() == 0) { |
331 | // AliFatal(Form("Member %s is not an array! Use the Get() method!",buf)); | |
332 | // return 0; | |
333 | // } | |
f2dc6b20 | 334 | |
335 | if (strcmp(member->GetTypeName(),"UInt_t") != 0) { | |
336 | AliFatal(Form("Member %s is not of type UInt_t*!",buf)); | |
337 | return 0; | |
338 | } | |
339 | ||
340 | const void *pointer = (char *)this+member->GetOffset(); | |
341 | ||
342 | return (const UInt_t*)pointer; | |
343 | } |