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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 | } | |
48d5b578 | 64 | |
8b515ee4 | 65 | ///___________________________________________________________________________ |
239fdf4e | 66 | void AliEveEventBuffer::CreateBufferThread() { |
48d5b578 | 67 | if(GetBusy()) { |
910533c9 | 68 | cout << "Buffer is busy, no thread created"<< endl; |
48d5b578 | 69 | } else { |
910533c9 | 70 | SetBusy(kTRUE); |
71 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { | |
72 | cout << "CreateBufferThread()"<<endl; | |
73 | TThread * fThread = new TThread(AliEveEventBuffer::BufferThread, (void*) this); | |
74 | fThread->Run(); | |
75 | cout << "Started BufferThread"<<endl; | |
76 | } else { | |
77 | cout << "Buffer is full already"<<endl; | |
78 | } | |
79 | } | |
239fdf4e | 80 | } |
30e7579c | 81 | ///___________________________________________________________________________ |
82 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
239fdf4e | 83 | cout <<"BufferThread : " <<endl; |
b088c0a1 | 84 | if(buffer) { |
239fdf4e | 85 | reinterpret_cast<AliEveEventBuffer*>(buffer)->MonitorBuffer(); |
239fdf4e | 86 | } else { |
87 | cout << "no buffer"<<endl; | |
b088c0a1 | 88 | } |
30e7579c | 89 | return (void*)0; |
90 | } | |
91 | ||
92 | ///_____________________________________________________________________________ | |
93 | void AliEveEventBuffer::MonitorBuffer() { | |
9110310d | 94 | cout << "Monitorbuffer() "; |
7161ac51 | 95 | SetBusy(kTRUE); |
96 | FetchEvent(); | |
910533c9 | 97 | SetBusy(kFALSE); |
7161ac51 | 98 | cout << "done " << endl; |
30e7579c | 99 | } |
100 | ||
d63d227e | 101 | |
30e7579c | 102 | ///_______________________________________________________________________________ |
103 | TObject * AliEveEventBuffer::NextEvent() { | |
104 | //See header file for documentation | |
910533c9 | 105 | cout << "NextEvent()"<<endl; |
30e7579c | 106 | TObject * nextEvent = GetNextUnSeen(); |
30e7579c | 107 | return nextEvent; |
108 | } | |
109 | ||
110 | ///______________________________________________________________________________ | |
111 | TObject * AliEveEventBuffer::Back() { | |
112 | cout << "go back"<<endl; | |
113 | PrintIndeces(); | |
114 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
115 | if(prevId == fBIndex[kTop]) { | |
116 | cout << "returning NULL" << endl; | |
117 | return NULL; | |
118 | } else { | |
119 | fBIndex[kCurrent] = prevId; | |
120 | PrintIndeces(); | |
121 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
122 | return fEventBuffer->At(fBIndex[kCurrent]); | |
123 | } | |
124 | } | |
125 | ||
8676f4b1 | 126 | |
127 | ||
30e7579c | 128 | ///______________________________________________________________________________ |
129 | TObject * AliEveEventBuffer::Fwd() { | |
130 | PrintIndeces(); | |
131 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
132 | cout<< "returning NULL"<<endl; | |
133 | return NULL; | |
134 | } | |
135 | ||
136 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
137 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
138 | return event; | |
139 | } | |
140 | ||
141 | ||
142 | ||
143 | ///________________________________________________________________________________ | |
144 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
145 | //See header file for documentation | |
239fdf4e | 146 | cout << "GetNextUnSeen"<<endl; |
30e7579c | 147 | PrintIndeces(); |
148 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
149 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
150 | fBIndex[kCurrent] = fBIndex[kLast]; | |
151 | PrintIndeces(); | |
152 | return fEventBuffer->At(fBIndex[kCurrent]); | |
153 | } else { | |
154 | cout << "No new event available, only events in buffer available!"<<endl; | |
155 | return NULL; | |
156 | } | |
157 | } | |
158 | ///_________________________________________________________________________________ | |
159 | void AliEveEventBuffer::PrintIndeces() { | |
160 | for(Int_t i = 0; i < kSize; i++) { | |
161 | cout << i << ": " << fBIndex[i] << endl; | |
162 | } | |
163 | } | |
164 | ///_________________________________________________________________________________ | |
165 | void AliEveEventBuffer::PrintBuffer() { | |
166 | for(Int_t i = 0; i < 10; i++) { | |
167 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
168 | if(event) { | |
169 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
170 | } | |
171 | } | |
172 | } | |
173 | ||
174 | ///____________________________________________________________________________________ | |
175 | void AliEveEventBuffer::FetchEvent() { | |
176 | cout << "FetchEvent " << endl; | |
177 | TObject * event = GetEventFromSource(); | |
8676f4b1 | 178 | ULong64_t eventId = GetEventIdFromSource(); |
179 | if(event) { | |
180 | AddToBuffer(event); | |
181 | fEventId[fBIndex[kTop]] = eventId; | |
182 | } | |
183 | ||
30e7579c | 184 | PrintIndeces(); |
185 | cout << "FetchedEvent " << endl; | |
186 | ||
187 | } | |
188 | ||
189 | ///_________________________________________________________________________________ | |
190 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
191 | cout << "Add to buffer"<<endl; | |
192 | if(!event) return; | |
193 | ||
194 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
195 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
239fdf4e | 196 | //TObject * object = fEventBuffer->At(fBIndex[kTop]); |
197 | fEventBuffer->RemoveAt(fBIndex[kTop]); | |
198 | //if (object) delete object; | |
30e7579c | 199 | fEventBuffer->AddAt(event, fBIndex[kTop]); |
30e7579c | 200 | |
8676f4b1 | 201 | } |
30e7579c | 202 | |
203 | ///_____________________________________________________________________________________ | |
204 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) { | |
205 | //See header file for documentation | |
206 | current++; | |
207 | if(current == fBufferSize) current = 0; | |
208 | return current; | |
209 | } | |
210 | ||
211 | ||
212 | ///_____________________________________________________________________________________ | |
213 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) { | |
214 | //See header file for documentation | |
215 | cout << "CalculatePrev: " << current; | |
216 | current--; | |
217 | if(current == -1) current += fBufferSize; | |
218 | cout << "... " << current << endl; | |
219 | return current; | |
220 | } | |
221 | ||
222 | ///__________________________________________________________________________________ | |
223 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) { | |
224 | //See header file for documentation | |
225 | if (top > low) { | |
226 | // cout << "top > low"<<endl; | |
227 | return (top - low); | |
228 | } else if (top < low) { | |
229 | // cout << "low < top"<<endl; | |
230 | return (fBufferSize - low + top); | |
231 | } else { | |
232 | //cout << "calculated to 0"<<endl; | |
233 | return 0; | |
234 | } | |
235 | } | |
236 | ||
237 | ///___________________________________________________________________________________ | |
238 | void AliEveEventBuffer::StartBufferMonitor() { | |
239 | //cout << "NOT !!! starting buffer mon"<<endl; | |
240 | cout << "starting buffer mon"<<endl; | |
8b515ee4 | 241 | if(!GetBufferMonStarted()) { |
242 | CreateBufferThread(); | |
243 | SetBufferMonStarted(kTRUE); | |
244 | fTimer->Start(3000); | |
245 | } else { | |
246 | cout << "Stopping buffer monitor"<<endl; | |
247 | fTimer->Stop(); | |
248 | SetBufferMonStarted(kFALSE); | |
249 | } | |
30e7579c | 250 | } |
251 | ///___________________________________________________________________________________ | |
252 | void AliEveEventBuffer::StopBufferMonitor() { | |
253 | cout << "Stopping buffer mon"<<endl; | |
239fdf4e | 254 | SetBufferMonStarted(kFALSE); |
30e7579c | 255 | fTimer->Stop(); |
256 | } | |
257 | ||
258 | ||
259 | // //_________________________________________________________________________________ | |
260 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
261 | // // see header file for class documentation | |
262 | ||
263 | // // -- reached the end of the buffer | |
264 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
265 | // return -1; | |
266 | ||
267 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
268 | // if ( newIdx == -1 ) | |
269 | // newIdx = BUFFERSIZE-1; | |
270 | ||
271 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
272 | ||
273 | // return newIdx; | |
274 | // } | |
275 | ||
276 | // //_______________________________________________________________ | |
277 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
278 | // // see header file for class documentation | |
279 | ||
280 | // // -- reached the top of the buffer | |
281 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
282 | // return -1; | |
283 | ||
284 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
285 | // if ( newIdx == BUFFERSIZE ) | |
286 | // newIdx = 0; | |
287 | ||
288 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
289 | ||
290 | // return newIdx; | |
291 | // } | |
292 | ||
293 | // void AliEveEventBuffer::MonitorBuffer() { | |
294 | // //See header file for documentation | |
295 | // if( GetNAvailableEvents() < 10) { | |
296 | // StopBufferChecker(); | |
297 | // StartLoop(); | |
298 | // } | |
299 | // } | |
300 | ||
301 | // void AliEveEventBuffer::StartLoop() { | |
302 | // //See header file for documentation | |
303 | // fTimer->Start(2000); | |
304 | // } | |
305 | // void AliEveEventBuffer::StopLoop() { | |
306 | // //See header file for documentation | |
307 | // fTimer->Stop(); | |
308 | // } | |
309 | ||
310 | // void AliEveEventBuffer::StartBufferChecker() { | |
311 | // //See header file for documentation | |
312 | // fBufferTimer->Start(2000); | |
313 | // } | |
314 | // void AliEveEventBuffer::StopBufferChecker() { | |
315 | // //See header file for documentation | |
316 | // fBufferTimer->Stop(); | |
317 | // } | |
318 | ||
319 | // AliESDEvent * GetNextEvent() { | |
320 | ||
321 | // tree->GetEntry(fEvent++); | |
322 | ||
323 | // AliESDEvent * event = new AliESDEvent(); | |
324 | // event->ReadFromTree(fTree); | |
325 | // if (event) { | |
326 | // return event; | |
327 | // } else { | |
328 | // cout << "error getting event" << endl; | |
329 | // return NULL; | |
330 | // } | |
331 | // } |