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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(), |
1c2d08b8 | 26 | fBufferMonStarted(kFALSE), |
27 | fThread(NULL) | |
30e7579c | 28 | { |
29 | // see header file for class documentation | |
239fdf4e | 30 | fEventBuffer = new TObjArray(fBufferSize, 0); |
31 | fEventBuffer->SetOwner(kFALSE); | |
30e7579c | 32 | |
33 | for(int id = 0; id < kSize; id++) { | |
34 | fBIndex[id] = -1; | |
35 | } | |
36 | ||
37 | fTimer = new TTimer(); | |
239fdf4e | 38 | fTimer->Connect("Timeout()", "AliEveEventBuffer", this, "CreateBufferThread()"); |
30e7579c | 39 | |
8676f4b1 | 40 | fEventId = new ULong64_t[fBufferSize]; |
41 | for(Int_t id = 0; id < fBufferSize; id++ ) { | |
42 | fEventId[id] = -2; | |
43 | } | |
1c2d08b8 | 44 | |
45 | fThread = new TThread(AliEveEventBuffer::BufferThread, (void*) this); | |
46 | ||
8676f4b1 | 47 | |
30e7579c | 48 | |
49 | } | |
50 | ||
51 | ||
52 | ||
53 | ///_______________________________________________________________________ | |
54 | AliEveEventBuffer::~AliEveEventBuffer() { | |
55 | // see header file for class documentation | |
56 | ||
57 | if ( fEventBuffer ) { | |
58 | fEventBuffer->Clear(); | |
59 | delete fEventBuffer; | |
60 | } | |
61 | fEventBuffer = NULL; | |
62 | ||
63 | if(fCurrentEvent) | |
64 | delete fCurrentEvent; | |
65 | fCurrentEvent = NULL; | |
66 | ||
67 | } | |
48d5b578 | 68 | |
8b515ee4 | 69 | ///___________________________________________________________________________ |
239fdf4e | 70 | void AliEveEventBuffer::CreateBufferThread() { |
1c2d08b8 | 71 | cout << "Threadexists: " << fThread->Exists() << endl; |
48d5b578 | 72 | if(GetBusy()) { |
910533c9 | 73 | cout << "Buffer is busy, no thread created"<< endl; |
1c2d08b8 | 74 | |
48d5b578 | 75 | } else { |
910533c9 | 76 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { |
7e8a8b86 | 77 | SetBusy(kTRUE); |
1c2d08b8 | 78 | cout << "StartBufferThread()"<<endl; |
910533c9 | 79 | fThread->Run(); |
80 | cout << "Started BufferThread"<<endl; | |
81 | } else { | |
82 | cout << "Buffer is full already"<<endl; | |
83 | } | |
84 | } | |
239fdf4e | 85 | } |
1c2d08b8 | 86 | |
30e7579c | 87 | ///___________________________________________________________________________ |
88 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
239fdf4e | 89 | cout <<"BufferThread : " <<endl; |
b088c0a1 | 90 | if(buffer) { |
239fdf4e | 91 | reinterpret_cast<AliEveEventBuffer*>(buffer)->MonitorBuffer(); |
239fdf4e | 92 | } else { |
93 | cout << "no buffer"<<endl; | |
b088c0a1 | 94 | } |
30e7579c | 95 | return (void*)0; |
96 | } | |
97 | ||
98 | ///_____________________________________________________________________________ | |
99 | void AliEveEventBuffer::MonitorBuffer() { | |
9110310d | 100 | cout << "Monitorbuffer() "; |
7161ac51 | 101 | SetBusy(kTRUE); |
102 | FetchEvent(); | |
910533c9 | 103 | SetBusy(kFALSE); |
7161ac51 | 104 | cout << "done " << endl; |
30e7579c | 105 | } |
106 | ||
d63d227e | 107 | |
30e7579c | 108 | ///_______________________________________________________________________________ |
109 | TObject * AliEveEventBuffer::NextEvent() { | |
110 | //See header file for documentation | |
910533c9 | 111 | cout << "NextEvent()"<<endl; |
30e7579c | 112 | TObject * nextEvent = GetNextUnSeen(); |
30e7579c | 113 | return nextEvent; |
114 | } | |
115 | ||
116 | ///______________________________________________________________________________ | |
117 | TObject * AliEveEventBuffer::Back() { | |
118 | cout << "go back"<<endl; | |
119 | PrintIndeces(); | |
120 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
121 | if(prevId == fBIndex[kTop]) { | |
122 | cout << "returning NULL" << endl; | |
123 | return NULL; | |
124 | } else { | |
125 | fBIndex[kCurrent] = prevId; | |
126 | PrintIndeces(); | |
127 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
128 | return fEventBuffer->At(fBIndex[kCurrent]); | |
129 | } | |
130 | } | |
131 | ||
8676f4b1 | 132 | |
133 | ||
30e7579c | 134 | ///______________________________________________________________________________ |
135 | TObject * AliEveEventBuffer::Fwd() { | |
136 | PrintIndeces(); | |
137 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
138 | cout<< "returning NULL"<<endl; | |
139 | return NULL; | |
140 | } | |
141 | ||
142 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
143 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
144 | return event; | |
145 | } | |
146 | ||
147 | ||
148 | ||
149 | ///________________________________________________________________________________ | |
150 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
151 | //See header file for documentation | |
239fdf4e | 152 | cout << "GetNextUnSeen"<<endl; |
30e7579c | 153 | PrintIndeces(); |
154 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
155 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
156 | fBIndex[kCurrent] = fBIndex[kLast]; | |
157 | PrintIndeces(); | |
158 | return fEventBuffer->At(fBIndex[kCurrent]); | |
159 | } else { | |
160 | cout << "No new event available, only events in buffer available!"<<endl; | |
161 | return NULL; | |
162 | } | |
163 | } | |
164 | ///_________________________________________________________________________________ | |
165 | void AliEveEventBuffer::PrintIndeces() { | |
166 | for(Int_t i = 0; i < kSize; i++) { | |
167 | cout << i << ": " << fBIndex[i] << endl; | |
168 | } | |
169 | } | |
170 | ///_________________________________________________________________________________ | |
171 | void AliEveEventBuffer::PrintBuffer() { | |
172 | for(Int_t i = 0; i < 10; i++) { | |
173 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
174 | if(event) { | |
175 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
176 | } | |
177 | } | |
178 | } | |
179 | ||
180 | ///____________________________________________________________________________________ | |
181 | void AliEveEventBuffer::FetchEvent() { | |
182 | cout << "FetchEvent " << endl; | |
183 | TObject * event = GetEventFromSource(); | |
8676f4b1 | 184 | ULong64_t eventId = GetEventIdFromSource(); |
185 | if(event) { | |
186 | AddToBuffer(event); | |
187 | fEventId[fBIndex[kTop]] = eventId; | |
188 | } | |
189 | ||
30e7579c | 190 | PrintIndeces(); |
191 | cout << "FetchedEvent " << endl; | |
192 | ||
193 | } | |
194 | ||
195 | ///_________________________________________________________________________________ | |
196 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
197 | cout << "Add to buffer"<<endl; | |
198 | if(!event) return; | |
199 | ||
200 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
201 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
239fdf4e | 202 | //TObject * object = fEventBuffer->At(fBIndex[kTop]); |
203 | fEventBuffer->RemoveAt(fBIndex[kTop]); | |
204 | //if (object) delete object; | |
30e7579c | 205 | fEventBuffer->AddAt(event, fBIndex[kTop]); |
30e7579c | 206 | |
8676f4b1 | 207 | } |
30e7579c | 208 | |
209 | ///_____________________________________________________________________________________ | |
210 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) { | |
211 | //See header file for documentation | |
212 | current++; | |
213 | if(current == fBufferSize) current = 0; | |
214 | return current; | |
215 | } | |
216 | ||
217 | ||
218 | ///_____________________________________________________________________________________ | |
219 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) { | |
220 | //See header file for documentation | |
221 | cout << "CalculatePrev: " << current; | |
222 | current--; | |
223 | if(current == -1) current += fBufferSize; | |
224 | cout << "... " << current << endl; | |
225 | return current; | |
226 | } | |
227 | ||
228 | ///__________________________________________________________________________________ | |
229 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) { | |
230 | //See header file for documentation | |
231 | if (top > low) { | |
232 | // cout << "top > low"<<endl; | |
233 | return (top - low); | |
234 | } else if (top < low) { | |
235 | // cout << "low < top"<<endl; | |
236 | return (fBufferSize - low + top); | |
237 | } else { | |
238 | //cout << "calculated to 0"<<endl; | |
239 | return 0; | |
240 | } | |
241 | } | |
242 | ||
243 | ///___________________________________________________________________________________ | |
244 | void AliEveEventBuffer::StartBufferMonitor() { | |
245 | //cout << "NOT !!! starting buffer mon"<<endl; | |
246 | cout << "starting buffer mon"<<endl; | |
8b515ee4 | 247 | if(!GetBufferMonStarted()) { |
248 | CreateBufferThread(); | |
249 | SetBufferMonStarted(kTRUE); | |
250 | fTimer->Start(3000); | |
251 | } else { | |
252 | cout << "Stopping buffer monitor"<<endl; | |
253 | fTimer->Stop(); | |
254 | SetBufferMonStarted(kFALSE); | |
255 | } | |
30e7579c | 256 | } |
257 | ///___________________________________________________________________________________ | |
258 | void AliEveEventBuffer::StopBufferMonitor() { | |
259 | cout << "Stopping buffer mon"<<endl; | |
239fdf4e | 260 | SetBufferMonStarted(kFALSE); |
30e7579c | 261 | fTimer->Stop(); |
262 | } | |
263 | ||
264 | ||
265 | // //_________________________________________________________________________________ | |
266 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
267 | // // see header file for class documentation | |
268 | ||
269 | // // -- reached the end of the buffer | |
270 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
271 | // return -1; | |
272 | ||
273 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
274 | // if ( newIdx == -1 ) | |
275 | // newIdx = BUFFERSIZE-1; | |
276 | ||
277 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
278 | ||
279 | // return newIdx; | |
280 | // } | |
281 | ||
282 | // //_______________________________________________________________ | |
283 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
284 | // // see header file for class documentation | |
285 | ||
286 | // // -- reached the top of the buffer | |
287 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
288 | // return -1; | |
289 | ||
290 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
291 | // if ( newIdx == BUFFERSIZE ) | |
292 | // newIdx = 0; | |
293 | ||
294 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
295 | ||
296 | // return newIdx; | |
297 | // } | |
298 | ||
299 | // void AliEveEventBuffer::MonitorBuffer() { | |
300 | // //See header file for documentation | |
301 | // if( GetNAvailableEvents() < 10) { | |
302 | // StopBufferChecker(); | |
303 | // StartLoop(); | |
304 | // } | |
305 | // } | |
306 | ||
307 | // void AliEveEventBuffer::StartLoop() { | |
308 | // //See header file for documentation | |
309 | // fTimer->Start(2000); | |
310 | // } | |
311 | // void AliEveEventBuffer::StopLoop() { | |
312 | // //See header file for documentation | |
313 | // fTimer->Stop(); | |
314 | // } | |
315 | ||
316 | // void AliEveEventBuffer::StartBufferChecker() { | |
317 | // //See header file for documentation | |
318 | // fBufferTimer->Start(2000); | |
319 | // } | |
320 | // void AliEveEventBuffer::StopBufferChecker() { | |
321 | // //See header file for documentation | |
322 | // fBufferTimer->Stop(); | |
323 | // } | |
324 | ||
325 | // AliESDEvent * GetNextEvent() { | |
326 | ||
327 | // tree->GetEntry(fEvent++); | |
328 | ||
329 | // AliESDEvent * event = new AliESDEvent(); | |
330 | // event->ReadFromTree(fTree); | |
331 | // if (event) { | |
332 | // return event; | |
333 | // } else { | |
334 | // cout << "error getting event" << endl; | |
335 | // return NULL; | |
336 | // } | |
337 | // } |