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30e7579c | 1 | #include <iostream> |
2 | ||
3 | #include "TObjArray.h" | |
4 | #include "TTimer.h" | |
5 | #include "TThread.h" | |
765675f2 | 6 | #include "TMutex.h" |
30e7579c | 7 | #include "AliEveEventBuffer.h" |
8 | ||
9 | ||
10 | //Not needed, only for debug | |
11 | #include "AliESDEvent.h" | |
12 | ||
13 | using namespace std; | |
14 | ||
15 | ClassImp(AliEveEventBuffer) | |
16 | ||
17 | ///_______________________________________________________________________ | |
18 | AliEveEventBuffer::AliEveEventBuffer() : | |
19 | fBufferSize(10), | |
20 | fPreBuffer(4), | |
30e7579c | 21 | fEventBuffer(NULL), |
22 | fCurrentEvent(NULL), | |
23 | fBIndex(), | |
24 | fTimer(NULL), | |
b088c0a1 | 25 | fEventId(), |
1c2d08b8 | 26 | fBufferMonStarted(kFALSE), |
765675f2 | 27 | fThread(NULL), |
28 | fMutex(NULL) | |
30e7579c | 29 | { |
30 | // see header file for class documentation | |
239fdf4e | 31 | fEventBuffer = new TObjArray(fBufferSize, 0); |
32 | fEventBuffer->SetOwner(kFALSE); | |
30e7579c | 33 | |
34 | for(int id = 0; id < kSize; id++) { | |
35 | fBIndex[id] = -1; | |
36 | } | |
37 | ||
38 | fTimer = new TTimer(); | |
239fdf4e | 39 | fTimer->Connect("Timeout()", "AliEveEventBuffer", this, "CreateBufferThread()"); |
30e7579c | 40 | |
8676f4b1 | 41 | fEventId = new ULong64_t[fBufferSize]; |
42 | for(Int_t id = 0; id < fBufferSize; id++ ) { | |
43 | fEventId[id] = -2; | |
44 | } | |
1c2d08b8 | 45 | |
46 | fThread = new TThread(AliEveEventBuffer::BufferThread, (void*) this); | |
765675f2 | 47 | fMutex = new TMutex(); |
8676f4b1 | 48 | |
30e7579c | 49 | |
50 | } | |
51 | ||
52 | ||
53 | ||
54 | ///_______________________________________________________________________ | |
55 | AliEveEventBuffer::~AliEveEventBuffer() { | |
56 | // see header file for class documentation | |
57 | ||
58 | if ( fEventBuffer ) { | |
59 | fEventBuffer->Clear(); | |
60 | delete fEventBuffer; | |
61 | } | |
62 | fEventBuffer = NULL; | |
63 | ||
64 | if(fCurrentEvent) | |
65 | delete fCurrentEvent; | |
66 | fCurrentEvent = NULL; | |
67 | ||
68 | } | |
48d5b578 | 69 | |
8b515ee4 | 70 | ///___________________________________________________________________________ |
239fdf4e | 71 | void AliEveEventBuffer::CreateBufferThread() { |
973e8d95 | 72 | // see header file for class documentation |
765675f2 | 73 | |
1c2d08b8 | 74 | cout << "Threadexists: " << fThread->Exists() << endl; |
765675f2 | 75 | if( fMutex->TryLock() ) { |
910533c9 | 76 | cout << "Buffer is busy, no thread created"<< endl; |
765675f2 | 77 | return; |
48d5b578 | 78 | } else { |
910533c9 | 79 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { |
1c2d08b8 | 80 | cout << "StartBufferThread()"<<endl; |
910533c9 | 81 | fThread->Run(); |
82 | cout << "Started BufferThread"<<endl; | |
83 | } else { | |
84 | cout << "Buffer is full already"<<endl; | |
55f78c0d | 85 | fMutex->UnLock(); |
910533c9 | 86 | } |
87 | } | |
239fdf4e | 88 | } |
1c2d08b8 | 89 | |
30e7579c | 90 | ///___________________________________________________________________________ |
91 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
973e8d95 | 92 | // see header file for class documentation |
239fdf4e | 93 | cout <<"BufferThread : " <<endl; |
b088c0a1 | 94 | if(buffer) { |
239fdf4e | 95 | reinterpret_cast<AliEveEventBuffer*>(buffer)->MonitorBuffer(); |
239fdf4e | 96 | } else { |
97 | cout << "no buffer"<<endl; | |
b088c0a1 | 98 | } |
30e7579c | 99 | return (void*)0; |
100 | } | |
101 | ||
102 | ///_____________________________________________________________________________ | |
103 | void AliEveEventBuffer::MonitorBuffer() { | |
973e8d95 | 104 | // see header file for class documentation |
9110310d | 105 | cout << "Monitorbuffer() "; |
7161ac51 | 106 | FetchEvent(); |
765675f2 | 107 | fMutex->UnLock(); |
108 | ||
7161ac51 | 109 | cout << "done " << endl; |
30e7579c | 110 | } |
111 | ||
d63d227e | 112 | |
30e7579c | 113 | ///_______________________________________________________________________________ |
114 | TObject * AliEveEventBuffer::NextEvent() { | |
115 | //See header file for documentation | |
910533c9 | 116 | cout << "NextEvent()"<<endl; |
30e7579c | 117 | TObject * nextEvent = GetNextUnSeen(); |
30e7579c | 118 | return nextEvent; |
119 | } | |
120 | ||
121 | ///______________________________________________________________________________ | |
122 | TObject * AliEveEventBuffer::Back() { | |
973e8d95 | 123 | // see header file for class documentation |
30e7579c | 124 | cout << "go back"<<endl; |
125 | PrintIndeces(); | |
126 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
127 | if(prevId == fBIndex[kTop]) { | |
128 | cout << "returning NULL" << endl; | |
129 | return NULL; | |
130 | } else { | |
131 | fBIndex[kCurrent] = prevId; | |
132 | PrintIndeces(); | |
133 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
134 | return fEventBuffer->At(fBIndex[kCurrent]); | |
135 | } | |
136 | } | |
137 | ||
8676f4b1 | 138 | |
139 | ||
30e7579c | 140 | ///______________________________________________________________________________ |
141 | TObject * AliEveEventBuffer::Fwd() { | |
973e8d95 | 142 | // see header file for class documentation |
30e7579c | 143 | PrintIndeces(); |
144 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
145 | cout<< "returning NULL"<<endl; | |
146 | return NULL; | |
147 | } | |
148 | ||
149 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
150 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
151 | return event; | |
152 | } | |
153 | ||
154 | ||
155 | ||
156 | ///________________________________________________________________________________ | |
157 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
158 | //See header file for documentation | |
239fdf4e | 159 | cout << "GetNextUnSeen"<<endl; |
30e7579c | 160 | PrintIndeces(); |
161 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
162 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
163 | fBIndex[kCurrent] = fBIndex[kLast]; | |
164 | PrintIndeces(); | |
165 | return fEventBuffer->At(fBIndex[kCurrent]); | |
166 | } else { | |
167 | cout << "No new event available, only events in buffer available!"<<endl; | |
168 | return NULL; | |
169 | } | |
170 | } | |
171 | ///_________________________________________________________________________________ | |
172 | void AliEveEventBuffer::PrintIndeces() { | |
973e8d95 | 173 | // see header file for class documentation |
30e7579c | 174 | for(Int_t i = 0; i < kSize; i++) { |
175 | cout << i << ": " << fBIndex[i] << endl; | |
176 | } | |
177 | } | |
178 | ///_________________________________________________________________________________ | |
179 | void AliEveEventBuffer::PrintBuffer() { | |
973e8d95 | 180 | // see header file for class documentation |
30e7579c | 181 | for(Int_t i = 0; i < 10; i++) { |
182 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
183 | if(event) { | |
184 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
185 | } | |
186 | } | |
187 | } | |
188 | ||
189 | ///____________________________________________________________________________________ | |
190 | void AliEveEventBuffer::FetchEvent() { | |
973e8d95 | 191 | // see header file for class documentation |
30e7579c | 192 | cout << "FetchEvent " << endl; |
193 | TObject * event = GetEventFromSource(); | |
8676f4b1 | 194 | ULong64_t eventId = GetEventIdFromSource(); |
195 | if(event) { | |
196 | AddToBuffer(event); | |
197 | fEventId[fBIndex[kTop]] = eventId; | |
198 | } | |
199 | ||
30e7579c | 200 | PrintIndeces(); |
201 | cout << "FetchedEvent " << endl; | |
202 | ||
203 | } | |
204 | ||
205 | ///_________________________________________________________________________________ | |
206 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
973e8d95 | 207 | // see header file for class documentation |
30e7579c | 208 | cout << "Add to buffer"<<endl; |
209 | if(!event) return; | |
210 | ||
211 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
212 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
239fdf4e | 213 | //TObject * object = fEventBuffer->At(fBIndex[kTop]); |
214 | fEventBuffer->RemoveAt(fBIndex[kTop]); | |
215 | //if (object) delete object; | |
30e7579c | 216 | fEventBuffer->AddAt(event, fBIndex[kTop]); |
30e7579c | 217 | |
8676f4b1 | 218 | } |
30e7579c | 219 | |
220 | ///_____________________________________________________________________________________ | |
973e8d95 | 221 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) const { |
30e7579c | 222 | //See header file for documentation |
223 | current++; | |
224 | if(current == fBufferSize) current = 0; | |
225 | return current; | |
226 | } | |
227 | ||
228 | ||
229 | ///_____________________________________________________________________________________ | |
973e8d95 | 230 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) const { |
30e7579c | 231 | //See header file for documentation |
232 | cout << "CalculatePrev: " << current; | |
233 | current--; | |
234 | if(current == -1) current += fBufferSize; | |
235 | cout << "... " << current << endl; | |
236 | return current; | |
237 | } | |
238 | ||
239 | ///__________________________________________________________________________________ | |
973e8d95 | 240 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) const { |
30e7579c | 241 | //See header file for documentation |
242 | if (top > low) { | |
243 | // cout << "top > low"<<endl; | |
244 | return (top - low); | |
245 | } else if (top < low) { | |
246 | // cout << "low < top"<<endl; | |
247 | return (fBufferSize - low + top); | |
248 | } else { | |
249 | //cout << "calculated to 0"<<endl; | |
250 | return 0; | |
251 | } | |
252 | } | |
253 | ||
254 | ///___________________________________________________________________________________ | |
255 | void AliEveEventBuffer::StartBufferMonitor() { | |
256 | //cout << "NOT !!! starting buffer mon"<<endl; | |
257 | cout << "starting buffer mon"<<endl; | |
8b515ee4 | 258 | if(!GetBufferMonStarted()) { |
259 | CreateBufferThread(); | |
260 | SetBufferMonStarted(kTRUE); | |
765675f2 | 261 | fTimer->Start(15000); |
8b515ee4 | 262 | } else { |
263 | cout << "Stopping buffer monitor"<<endl; | |
264 | fTimer->Stop(); | |
265 | SetBufferMonStarted(kFALSE); | |
266 | } | |
30e7579c | 267 | } |
268 | ///___________________________________________________________________________________ | |
269 | void AliEveEventBuffer::StopBufferMonitor() { | |
973e8d95 | 270 | // see header file for class documentation |
30e7579c | 271 | cout << "Stopping buffer mon"<<endl; |
239fdf4e | 272 | SetBufferMonStarted(kFALSE); |
30e7579c | 273 | fTimer->Stop(); |
274 | } | |
275 | ||
276 | ||
277 | // //_________________________________________________________________________________ | |
278 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
279 | // // see header file for class documentation | |
280 | ||
281 | // // -- reached the end of the buffer | |
282 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
283 | // return -1; | |
284 | ||
285 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
286 | // if ( newIdx == -1 ) | |
287 | // newIdx = BUFFERSIZE-1; | |
288 | ||
289 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
290 | ||
291 | // return newIdx; | |
292 | // } | |
293 | ||
294 | // //_______________________________________________________________ | |
295 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
296 | // // see header file for class documentation | |
297 | ||
298 | // // -- reached the top of the buffer | |
299 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
300 | // return -1; | |
301 | ||
302 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
303 | // if ( newIdx == BUFFERSIZE ) | |
304 | // newIdx = 0; | |
305 | ||
306 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
307 | ||
308 | // return newIdx; | |
309 | // } | |
310 | ||
311 | // void AliEveEventBuffer::MonitorBuffer() { | |
312 | // //See header file for documentation | |
313 | // if( GetNAvailableEvents() < 10) { | |
314 | // StopBufferChecker(); | |
315 | // StartLoop(); | |
316 | // } | |
317 | // } | |
318 | ||
319 | // void AliEveEventBuffer::StartLoop() { | |
320 | // //See header file for documentation | |
321 | // fTimer->Start(2000); | |
322 | // } | |
323 | // void AliEveEventBuffer::StopLoop() { | |
324 | // //See header file for documentation | |
325 | // fTimer->Stop(); | |
326 | // } | |
327 | ||
328 | // void AliEveEventBuffer::StartBufferChecker() { | |
329 | // //See header file for documentation | |
330 | // fBufferTimer->Start(2000); | |
331 | // } | |
332 | // void AliEveEventBuffer::StopBufferChecker() { | |
333 | // //See header file for documentation | |
334 | // fBufferTimer->Stop(); | |
335 | // } | |
336 | ||
337 | // AliESDEvent * GetNextEvent() { | |
338 | ||
339 | // tree->GetEntry(fEvent++); | |
340 | ||
341 | // AliESDEvent * event = new AliESDEvent(); | |
342 | // event->ReadFromTree(fTree); | |
343 | // if (event) { | |
344 | // return event; | |
345 | // } else { | |
346 | // cout << "error getting event" << endl; | |
347 | // return NULL; | |
348 | // } | |
349 | // } |