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30e7579c | 1 | #include <iostream> |
2 | ||
3 | #include "TObjArray.h" | |
4 | #include "TTimer.h" | |
5 | #include "TThread.h" | |
6 | #include "AliEveEventBuffer.h" | |
7 | ||
8 | ||
9 | //Not needed, only for debug | |
10 | #include "AliESDEvent.h" | |
11 | ||
12 | using namespace std; | |
13 | ||
14 | ClassImp(AliEveEventBuffer) | |
15 | ||
16 | ///_______________________________________________________________________ | |
17 | AliEveEventBuffer::AliEveEventBuffer() : | |
18 | fBufferSize(10), | |
19 | fPreBuffer(4), | |
20 | fBusy(kFALSE), | |
21 | fEventBuffer(NULL), | |
22 | fCurrentEvent(NULL), | |
23 | fBIndex(), | |
24 | fTimer(NULL), | |
b088c0a1 | 25 | fEventId(), |
26 | fBufferMonStarted(kFALSE) | |
30e7579c | 27 | { |
28 | // see header file for class documentation | |
239fdf4e | 29 | fEventBuffer = new TObjArray(fBufferSize, 0); |
30 | fEventBuffer->SetOwner(kFALSE); | |
30e7579c | 31 | |
32 | for(int id = 0; id < kSize; id++) { | |
33 | fBIndex[id] = -1; | |
34 | } | |
35 | ||
36 | fTimer = new TTimer(); | |
239fdf4e | 37 | fTimer->Connect("Timeout()", "AliEveEventBuffer", this, "CreateBufferThread()"); |
30e7579c | 38 | |
8676f4b1 | 39 | fEventId = new ULong64_t[fBufferSize]; |
40 | for(Int_t id = 0; id < fBufferSize; id++ ) { | |
41 | fEventId[id] = -2; | |
42 | } | |
43 | ||
30e7579c | 44 | |
45 | } | |
46 | ||
47 | ||
48 | ||
49 | ///_______________________________________________________________________ | |
50 | AliEveEventBuffer::~AliEveEventBuffer() { | |
51 | // see header file for class documentation | |
52 | ||
53 | if ( fEventBuffer ) { | |
54 | fEventBuffer->Clear(); | |
55 | delete fEventBuffer; | |
56 | } | |
57 | fEventBuffer = NULL; | |
58 | ||
59 | if(fCurrentEvent) | |
60 | delete fCurrentEvent; | |
61 | fCurrentEvent = NULL; | |
62 | ||
63 | } | |
8b515ee4 | 64 | ///___________________________________________________________________________ |
239fdf4e | 65 | void AliEveEventBuffer::CreateBufferThread() { |
8b515ee4 | 66 | cout << "CreateBufferThread()"<<endl; |
239fdf4e | 67 | TThread * fThread = new TThread(AliEveEventBuffer::BufferThread, (void*) this); |
68 | fThread->Run(); | |
8b515ee4 | 69 | cout << "Done BufferThread"<<endl; |
239fdf4e | 70 | } |
71 | ||
30e7579c | 72 | ///___________________________________________________________________________ |
73 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
239fdf4e | 74 | cout <<"BufferThread : " <<endl; |
b088c0a1 | 75 | if(buffer) { |
239fdf4e | 76 | if (!reinterpret_cast<AliEveEventBuffer*>(buffer)->GetBusy()) { |
77 | reinterpret_cast<AliEveEventBuffer*>(buffer)->MonitorBuffer(); | |
78 | } else { | |
79 | cout << "busy"<<endl; | |
b088c0a1 | 80 | } |
239fdf4e | 81 | |
82 | } else { | |
83 | cout << "no buffer"<<endl; | |
b088c0a1 | 84 | } |
30e7579c | 85 | return (void*)0; |
86 | } | |
87 | ||
88 | ///_____________________________________________________________________________ | |
89 | void AliEveEventBuffer::MonitorBuffer() { | |
90 | cout << "Monitorbuffer: " << endl; | |
d63d227e | 91 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { |
92 | if(GetBusy()) { | |
93 | cout << "Already called FetchEvent()" << endl; | |
94 | return; | |
95 | } else { | |
30e7579c | 96 | fBusy = kTRUE; |
97 | FetchEvent(); | |
98 | fBusy = kFALSE; | |
30e7579c | 99 | } |
d63d227e | 100 | } else { |
101 | //StopBufferMonitor(); | |
102 | ||
103 | fBusy = kFALSE; | |
30e7579c | 104 | } |
105 | } | |
106 | ||
d63d227e | 107 | |
30e7579c | 108 | ///_______________________________________________________________________________ |
109 | TObject * AliEveEventBuffer::NextEvent() { | |
110 | //See header file for documentation | |
30e7579c | 111 | cout << "In enxtevent"<<endl; |
239fdf4e | 112 | |
113 | ||
114 | // if(fBusy) { | |
115 | // cout << "Event Buffer busy"<<endl; | |
116 | // return NULL; | |
117 | // } | |
118 | // else SetBusy(kTRUE); | |
30e7579c | 119 | TObject * nextEvent = GetNextUnSeen(); |
239fdf4e | 120 | //SetBusy(kFALSE); |
30e7579c | 121 | return nextEvent; |
122 | } | |
123 | ||
124 | ///______________________________________________________________________________ | |
125 | TObject * AliEveEventBuffer::Back() { | |
126 | cout << "go back"<<endl; | |
127 | PrintIndeces(); | |
128 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
129 | if(prevId == fBIndex[kTop]) { | |
130 | cout << "returning NULL" << endl; | |
131 | return NULL; | |
132 | } else { | |
133 | fBIndex[kCurrent] = prevId; | |
134 | PrintIndeces(); | |
135 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
136 | return fEventBuffer->At(fBIndex[kCurrent]); | |
137 | } | |
138 | } | |
139 | ||
8676f4b1 | 140 | |
141 | ||
30e7579c | 142 | ///______________________________________________________________________________ |
143 | TObject * AliEveEventBuffer::Fwd() { | |
144 | PrintIndeces(); | |
145 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
146 | cout<< "returning NULL"<<endl; | |
147 | return NULL; | |
148 | } | |
149 | ||
150 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
151 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
152 | return event; | |
153 | } | |
154 | ||
155 | ||
156 | ||
157 | ///________________________________________________________________________________ | |
158 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
159 | //See header file for documentation | |
239fdf4e | 160 | cout << "GetNextUnSeen"<<endl; |
30e7579c | 161 | PrintIndeces(); |
162 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
163 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
164 | fBIndex[kCurrent] = fBIndex[kLast]; | |
165 | PrintIndeces(); | |
166 | return fEventBuffer->At(fBIndex[kCurrent]); | |
167 | } else { | |
168 | cout << "No new event available, only events in buffer available!"<<endl; | |
169 | return NULL; | |
170 | } | |
171 | } | |
172 | ///_________________________________________________________________________________ | |
173 | void AliEveEventBuffer::PrintIndeces() { | |
174 | for(Int_t i = 0; i < kSize; i++) { | |
175 | cout << i << ": " << fBIndex[i] << endl; | |
176 | } | |
177 | } | |
178 | ///_________________________________________________________________________________ | |
179 | void AliEveEventBuffer::PrintBuffer() { | |
180 | for(Int_t i = 0; i < 10; i++) { | |
181 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
182 | if(event) { | |
183 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
184 | } | |
185 | } | |
186 | } | |
187 | ||
188 | ///____________________________________________________________________________________ | |
189 | void AliEveEventBuffer::FetchEvent() { | |
190 | cout << "FetchEvent " << endl; | |
191 | TObject * event = GetEventFromSource(); | |
8676f4b1 | 192 | ULong64_t eventId = GetEventIdFromSource(); |
193 | if(event) { | |
194 | AddToBuffer(event); | |
195 | fEventId[fBIndex[kTop]] = eventId; | |
196 | } | |
197 | ||
30e7579c | 198 | PrintIndeces(); |
199 | cout << "FetchedEvent " << endl; | |
200 | ||
201 | } | |
202 | ||
203 | ///_________________________________________________________________________________ | |
204 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
205 | cout << "Add to buffer"<<endl; | |
206 | if(!event) return; | |
207 | ||
208 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
209 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
239fdf4e | 210 | //TObject * object = fEventBuffer->At(fBIndex[kTop]); |
211 | fEventBuffer->RemoveAt(fBIndex[kTop]); | |
212 | //if (object) delete object; | |
30e7579c | 213 | fEventBuffer->AddAt(event, fBIndex[kTop]); |
30e7579c | 214 | |
8676f4b1 | 215 | } |
30e7579c | 216 | |
217 | ///_____________________________________________________________________________________ | |
218 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) { | |
219 | //See header file for documentation | |
220 | current++; | |
221 | if(current == fBufferSize) current = 0; | |
222 | return current; | |
223 | } | |
224 | ||
225 | ||
226 | ///_____________________________________________________________________________________ | |
227 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) { | |
228 | //See header file for documentation | |
229 | cout << "CalculatePrev: " << current; | |
230 | current--; | |
231 | if(current == -1) current += fBufferSize; | |
232 | cout << "... " << current << endl; | |
233 | return current; | |
234 | } | |
235 | ||
236 | ///__________________________________________________________________________________ | |
237 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) { | |
238 | //See header file for documentation | |
239 | if (top > low) { | |
240 | // cout << "top > low"<<endl; | |
241 | return (top - low); | |
242 | } else if (top < low) { | |
243 | // cout << "low < top"<<endl; | |
244 | return (fBufferSize - low + top); | |
245 | } else { | |
246 | //cout << "calculated to 0"<<endl; | |
247 | return 0; | |
248 | } | |
249 | } | |
250 | ||
251 | ///___________________________________________________________________________________ | |
252 | void AliEveEventBuffer::StartBufferMonitor() { | |
253 | //cout << "NOT !!! starting buffer mon"<<endl; | |
254 | cout << "starting buffer mon"<<endl; | |
8b515ee4 | 255 | if(!GetBufferMonStarted()) { |
256 | CreateBufferThread(); | |
257 | SetBufferMonStarted(kTRUE); | |
258 | fTimer->Start(3000); | |
259 | } else { | |
260 | cout << "Stopping buffer monitor"<<endl; | |
261 | fTimer->Stop(); | |
262 | SetBufferMonStarted(kFALSE); | |
263 | } | |
30e7579c | 264 | } |
265 | ///___________________________________________________________________________________ | |
266 | void AliEveEventBuffer::StopBufferMonitor() { | |
267 | cout << "Stopping buffer mon"<<endl; | |
239fdf4e | 268 | SetBufferMonStarted(kFALSE); |
30e7579c | 269 | fTimer->Stop(); |
270 | } | |
271 | ||
272 | ||
273 | // //_________________________________________________________________________________ | |
274 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
275 | // // see header file for class documentation | |
276 | ||
277 | // // -- reached the end of the buffer | |
278 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
279 | // return -1; | |
280 | ||
281 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
282 | // if ( newIdx == -1 ) | |
283 | // newIdx = BUFFERSIZE-1; | |
284 | ||
285 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
286 | ||
287 | // return newIdx; | |
288 | // } | |
289 | ||
290 | // //_______________________________________________________________ | |
291 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
292 | // // see header file for class documentation | |
293 | ||
294 | // // -- reached the top of the buffer | |
295 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
296 | // return -1; | |
297 | ||
298 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
299 | // if ( newIdx == BUFFERSIZE ) | |
300 | // newIdx = 0; | |
301 | ||
302 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
303 | ||
304 | // return newIdx; | |
305 | // } | |
306 | ||
307 | // void AliEveEventBuffer::MonitorBuffer() { | |
308 | // //See header file for documentation | |
309 | // if( GetNAvailableEvents() < 10) { | |
310 | // StopBufferChecker(); | |
311 | // StartLoop(); | |
312 | // } | |
313 | // } | |
314 | ||
315 | // void AliEveEventBuffer::StartLoop() { | |
316 | // //See header file for documentation | |
317 | // fTimer->Start(2000); | |
318 | // } | |
319 | // void AliEveEventBuffer::StopLoop() { | |
320 | // //See header file for documentation | |
321 | // fTimer->Stop(); | |
322 | // } | |
323 | ||
324 | // void AliEveEventBuffer::StartBufferChecker() { | |
325 | // //See header file for documentation | |
326 | // fBufferTimer->Start(2000); | |
327 | // } | |
328 | // void AliEveEventBuffer::StopBufferChecker() { | |
329 | // //See header file for documentation | |
330 | // fBufferTimer->Stop(); | |
331 | // } | |
332 | ||
333 | // AliESDEvent * GetNextEvent() { | |
334 | ||
335 | // tree->GetEntry(fEvent++); | |
336 | ||
337 | // AliESDEvent * event = new AliESDEvent(); | |
338 | // event->ReadFromTree(fTree); | |
339 | // if (event) { | |
340 | // return event; | |
341 | // } else { | |
342 | // cout << "error getting event" << endl; | |
343 | // return NULL; | |
344 | // } | |
345 | // } |