]>
Commit | Line | Data |
---|---|---|
16048fcf | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /////////////////////////////////////////////////////////////////////////////// | |
17 | // | |
18 | // This is a class for reading a raw data from a date event and providing | |
19 | // information about digits | |
20 | // | |
21 | /////////////////////////////////////////////////////////////////////////////// | |
22 | ||
23 | #include "AliRawReaderDate.h" | |
24 | #ifdef ALI_DATE | |
25 | #include "event.h" | |
26 | #endif | |
27 | ||
28 | ClassImp(AliRawReaderDate) | |
29 | ||
30 | ||
31 | AliRawReaderDate::AliRawReaderDate( | |
32 | #ifdef ALI_DATE | |
33 | void* event | |
34 | #else | |
35 | void* /* event */ | |
36 | #endif | |
37 | ) | |
38 | { | |
39 | // create an object to read digits from the given date event | |
40 | ||
41 | #ifdef ALI_DATE | |
42 | fEvent = (eventHeaderStruct*) event; | |
43 | fSubEvent = NULL; | |
44 | fPosition = fEnd = NULL; | |
45 | #else | |
46 | Fatal("AliRawReaderDate", "this class was compiled without DATE"); | |
47 | #endif | |
48 | } | |
49 | ||
50 | AliRawReaderDate::AliRawReaderDate(const AliRawReaderDate& rawReader) : | |
51 | AliRawReader(rawReader) | |
52 | { | |
53 | // copy constructor | |
54 | ||
55 | fEvent = rawReader.fEvent; | |
56 | fSubEvent = rawReader.fSubEvent; | |
57 | fPosition = rawReader.fPosition; | |
58 | fEnd = rawReader.fEnd; | |
59 | } | |
60 | ||
61 | AliRawReaderDate& AliRawReaderDate::operator = (const AliRawReaderDate& | |
62 | rawReader) | |
63 | { | |
64 | // assignment operator | |
65 | ||
66 | this->~AliRawReaderDate(); | |
67 | new(this) AliRawReaderDate(rawReader); | |
68 | return *this; | |
69 | } | |
70 | ||
71 | ||
72 | UInt_t AliRawReaderDate::GetType() const | |
73 | { | |
74 | // get the type from the event header | |
75 | ||
76 | #ifdef ALI_DATE | |
77 | if (!fEvent) return 0; | |
78 | return fEvent->eventType; | |
79 | #else | |
80 | return 0; | |
81 | #endif | |
82 | } | |
83 | ||
84 | UInt_t AliRawReaderDate::GetRunNumber() const | |
85 | { | |
86 | // get the run number from the event header | |
87 | ||
88 | #ifdef ALI_DATE | |
89 | if (!fEvent) return 0; | |
90 | return fEvent->eventRunNb; | |
91 | #else | |
92 | return 0; | |
93 | #endif | |
94 | } | |
95 | ||
96 | const UInt_t* AliRawReaderDate::GetEventId() const | |
97 | { | |
98 | // get the event id from the event header | |
99 | ||
100 | #ifdef ALI_DATE | |
101 | if (!fEvent) return NULL; | |
102 | return fEvent->eventId; | |
103 | #else | |
104 | return NULL; | |
105 | #endif | |
106 | } | |
107 | ||
108 | const UInt_t* AliRawReaderDate::GetTriggerPattern() const | |
109 | { | |
110 | // get the trigger pattern from the event header | |
111 | ||
112 | #ifdef ALI_DATE | |
113 | if (!fEvent) return NULL; | |
114 | return fEvent->eventTriggerPattern; | |
115 | #else | |
116 | return NULL; | |
117 | #endif | |
118 | } | |
119 | ||
120 | const UInt_t* AliRawReaderDate::GetDetectorPattern() const | |
121 | { | |
122 | // get the detector pattern from the event header | |
123 | ||
124 | #ifdef ALI_DATE | |
125 | if (!fEvent) return NULL; | |
126 | return fEvent->eventDetectorPattern; | |
127 | #else | |
128 | return NULL; | |
129 | #endif | |
130 | } | |
131 | ||
132 | const UInt_t* AliRawReaderDate::GetAttributes() const | |
133 | { | |
134 | // get the type attributes from the event header | |
135 | ||
136 | #ifdef ALI_DATE | |
137 | if (!fEvent) return NULL; | |
138 | return fEvent->eventTypeAttribute; | |
139 | #else | |
140 | return NULL; | |
141 | #endif | |
142 | } | |
143 | ||
144 | UInt_t AliRawReaderDate::GetGDCId() const | |
145 | { | |
146 | // get the GDC Id from the event header | |
147 | ||
148 | #ifdef ALI_DATE | |
149 | if (!fEvent) return 0; | |
150 | return fEvent->eventGdcId; | |
151 | #else | |
152 | return 0; | |
153 | #endif | |
154 | } | |
155 | ||
156 | ||
157 | Bool_t AliRawReaderDate::ReadMiniHeader() | |
158 | { | |
159 | // read a mini header at the current position | |
160 | // returns kFALSE if the mini header could not be read | |
161 | ||
b4857df7 | 162 | fErrorCode = 0; |
163 | ||
16048fcf | 164 | #ifdef ALI_DATE |
165 | if (!fEvent) return kFALSE; | |
b4857df7 | 166 | // check whether there are sub events |
167 | if (fEvent->eventSize <= fEvent->eventHeadSize) return kFALSE; | |
168 | ||
16048fcf | 169 | do { |
b4857df7 | 170 | // skip payload (if event was not selected) |
171 | if (fCount > 0) fPosition += fCount; | |
172 | ||
173 | // get the first or the next sub event if at the end of a sub event | |
174 | if (!fSubEvent || (fPosition >= fEnd)) { | |
175 | ||
176 | // check for end of event data | |
177 | if (fPosition >= ((UChar_t*)fEvent)+fEvent->eventSize) return kFALSE; | |
16048fcf | 178 | if (fSubEvent) { |
179 | fSubEvent = (eventHeaderStruct*) (((UChar_t*)fSubEvent) + | |
180 | fSubEvent->eventSize); | |
181 | } else { | |
16048fcf | 182 | fSubEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + |
183 | fEvent->eventHeadSize); | |
184 | } | |
b4857df7 | 185 | |
186 | // check the magic word of the sub event | |
187 | if (fSubEvent->eventMagic != EVENT_MAGIC_NUMBER) { | |
188 | Error("ReadMiniHeader", "wrong magic number in sub event!\n" | |
189 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
190 | fSubEvent->eventRunNb, | |
191 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
192 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
193 | fErrorCode = kErrMagic; | |
194 | return kFALSE; | |
195 | } | |
196 | ||
16048fcf | 197 | fCount = 0; |
198 | fPosition = ((UChar_t*)fSubEvent) + fSubEvent->eventHeadSize + | |
199 | sizeof(equipmentHeaderStruct); | |
200 | fEnd = ((UChar_t*)fSubEvent) + fSubEvent->eventSize; | |
201 | } | |
b4857df7 | 202 | |
203 | // continue with the next sub event if no data left in the payload | |
204 | if (fPosition >= fEnd) continue; | |
205 | ||
206 | // check that there are enough bytes left for the mini header | |
16048fcf | 207 | if (fPosition + sizeof(AliMiniHeader) > fEnd) { |
b4857df7 | 208 | Error("ReadMiniHeader", "could not read mini header data!"); |
209 | Warning("ReadMiniHeader", "skipping %d bytes\n" | |
210 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
211 | fEnd - fPosition, fSubEvent->eventRunNb, | |
212 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
213 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
214 | fCount = 0; | |
215 | fPosition = fEnd; | |
216 | fErrorCode = kErrNoMiniHeader; | |
217 | continue; | |
16048fcf | 218 | } |
b4857df7 | 219 | |
220 | // "read" and check the mini header | |
16048fcf | 221 | fMiniHeader = (AliMiniHeader*) fPosition; |
222 | fPosition += sizeof(AliMiniHeader); | |
72dd1d4f | 223 | if (!CheckMiniHeader()) { |
b4857df7 | 224 | Error("ReadMiniHeader", "wrong magic word in mini header!"); |
72dd1d4f | 225 | Warning("ReadMiniHeader", "skipping %d bytes\n" |
226 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
227 | fEnd - fPosition, fSubEvent->eventRunNb, | |
228 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
229 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
230 | fCount = 0; | |
231 | fPosition = fEnd; | |
b4857df7 | 232 | fErrorCode = kErrMiniMagic; |
72dd1d4f | 233 | continue; |
234 | } | |
16048fcf | 235 | fCount = fMiniHeader->fSize; |
b4857df7 | 236 | |
237 | // check consistency of data size in the mini header and in the sub event | |
238 | if (fPosition + fCount > fEnd) { | |
16048fcf | 239 | Error("ReadMiniHeader", "size in mini header exceeds event size!"); |
03c6d9a3 | 240 | Warning("ReadMiniHeader", "skipping %d bytes\n" |
241 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
242 | fEnd - fPosition, fSubEvent->eventRunNb, | |
243 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
244 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
245 | fCount = 0; | |
246 | fPosition = fEnd; | |
b4857df7 | 247 | fErrorCode = kErrSize; |
03c6d9a3 | 248 | continue; |
16048fcf | 249 | } |
b4857df7 | 250 | |
16048fcf | 251 | } while (!IsSelected()); |
b4857df7 | 252 | |
16048fcf | 253 | return kTRUE; |
254 | #else | |
255 | return kFALSE; | |
256 | #endif | |
257 | } | |
258 | ||
259 | Bool_t AliRawReaderDate::ReadNextData(UChar_t*& data) | |
260 | { | |
261 | // reads the next payload at the current position | |
262 | // returns kFALSE if the data could not be read | |
263 | ||
b4857df7 | 264 | fErrorCode = 0; |
16048fcf | 265 | while (fCount == 0) { |
266 | if (!ReadMiniHeader()) return kFALSE; | |
267 | } | |
268 | data = fPosition; | |
269 | fPosition += fCount; | |
270 | fCount = 0; | |
271 | return kTRUE; | |
272 | } | |
273 | ||
274 | Bool_t AliRawReaderDate::ReadNext(UChar_t* data, Int_t size) | |
275 | { | |
276 | // reads the next block of data at the current position | |
277 | // returns kFALSE if the data could not be read | |
278 | ||
b4857df7 | 279 | fErrorCode = 0; |
16048fcf | 280 | if (fPosition + size > fEnd) { |
281 | Error("ReadNext", "could not read data!"); | |
b4857df7 | 282 | fErrorCode = kErrOutOfBounds; |
16048fcf | 283 | return kFALSE; |
284 | } | |
285 | memcpy(data, fPosition, size); | |
286 | fPosition += size; | |
287 | fCount -= size; | |
288 | return kTRUE; | |
289 | } | |
290 | ||
291 | ||
292 | Bool_t AliRawReaderDate::Reset() | |
293 | { | |
294 | // reset the current position to the beginning of the event | |
295 | ||
296 | #ifdef ALI_DATE | |
297 | fSubEvent = NULL; | |
298 | #endif | |
299 | fCount = 0; | |
300 | fPosition = fEnd = NULL; | |
301 | return kTRUE; | |
302 | } | |
b4857df7 | 303 | |
304 | ||
305 | Int_t AliRawReaderDate::CheckData() const | |
306 | { | |
307 | // check the consistency of the data | |
308 | ||
309 | #ifdef ALI_DATE | |
310 | if (!fEvent) return 0; | |
311 | // check whether there are sub events | |
312 | if (fEvent->eventSize <= fEvent->eventHeadSize) return 0; | |
313 | ||
314 | eventHeaderStruct* subEvent = NULL; | |
315 | UChar_t* position = 0; | |
316 | UChar_t* end = 0; | |
be50fca2 | 317 | Int_t result = 0; |
b4857df7 | 318 | |
319 | while (kTRUE) { | |
320 | // get the first or the next sub event if at the end of a sub event | |
321 | if (!subEvent || (position >= end)) { | |
322 | ||
323 | // check for end of event data | |
be50fca2 | 324 | if (position >= ((UChar_t*)fEvent)+fEvent->eventSize) return result; |
b4857df7 | 325 | if (subEvent) { |
326 | subEvent = (eventHeaderStruct*) (((UChar_t*)subEvent) + | |
327 | subEvent->eventSize); | |
328 | } else { | |
329 | subEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + | |
330 | fEvent->eventHeadSize); | |
331 | } | |
332 | ||
333 | // check the magic word of the sub event | |
be50fca2 | 334 | if (subEvent->eventMagic != EVENT_MAGIC_NUMBER) { |
335 | result |= kErrMagic; | |
336 | return result; | |
337 | } | |
b4857df7 | 338 | |
339 | position = ((UChar_t*)subEvent) + subEvent->eventHeadSize + | |
340 | sizeof(equipmentHeaderStruct); | |
341 | end = ((UChar_t*)subEvent) + subEvent->eventSize; | |
342 | } | |
343 | ||
344 | // continue with the next sub event if no data left in the payload | |
345 | if (position >= end) continue; | |
346 | ||
347 | // check that there are enough bytes left for the mini header | |
be50fca2 | 348 | if (position + sizeof(AliMiniHeader) > end) { |
349 | result |= kErrNoMiniHeader; | |
350 | position = end; | |
351 | continue; | |
352 | } | |
b4857df7 | 353 | |
354 | // "read" and check the mini header | |
355 | AliMiniHeader* miniHeader = (AliMiniHeader*) position; | |
356 | position += sizeof(AliMiniHeader); | |
be50fca2 | 357 | if (!CheckMiniHeader(miniHeader)){ |
358 | result |= kErrMiniMagic; | |
359 | position = end; | |
360 | continue; | |
361 | } | |
b4857df7 | 362 | |
363 | // check consistency of data size in the mini header and in the sub event | |
be50fca2 | 364 | if (position + miniHeader->fSize > end) result |= kErrSize; |
b4857df7 | 365 | position += miniHeader->fSize; |
366 | }; | |
367 | ||
368 | #endif | |
369 | return 0; | |
370 | } |