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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), | |
25 | fThread(NULL), | |
26 | fEventId() | |
27 | { | |
28 | // see header file for class documentation | |
29 | fEventBuffer = new TObjArray(10, 0); | |
30 | fEventBuffer->SetOwner(kTRUE); | |
31 | ||
32 | for(int id = 0; id < kSize; id++) { | |
33 | fBIndex[id] = -1; | |
34 | } | |
35 | ||
36 | fTimer = new TTimer(); | |
37 | fTimer->Connect("Timeout()", "AliEveEventBuffer", this, "MonitorBuffer()"); | |
38 | ||
39 | fEventId = new Int_t[fBufferSize]; | |
40 | ||
41 | ||
42 | } | |
43 | ||
44 | ||
45 | ||
46 | ///_______________________________________________________________________ | |
47 | AliEveEventBuffer::~AliEveEventBuffer() { | |
48 | // see header file for class documentation | |
49 | ||
50 | if ( fEventBuffer ) { | |
51 | fEventBuffer->Clear(); | |
52 | delete fEventBuffer; | |
53 | } | |
54 | fEventBuffer = NULL; | |
55 | ||
56 | if(fCurrentEvent) | |
57 | delete fCurrentEvent; | |
58 | fCurrentEvent = NULL; | |
59 | ||
60 | } | |
61 | ||
62 | ///___________________________________________________________________________ | |
63 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
64 | if(buffer) | |
65 | reinterpret_cast<AliEveEventBuffer*>(buffer)->StartBufferMonitor(); | |
66 | return (void*)0; | |
67 | } | |
68 | ||
69 | ///_____________________________________________________________________________ | |
70 | void AliEveEventBuffer::MonitorBuffer() { | |
71 | cout << "Monitorbuffer: " << endl; | |
72 | if(fBusy) { | |
73 | cout << "Already called FetchEvent()" << endl; | |
74 | return; | |
75 | } else { | |
76 | cout << "fbusy = false"<<endl; | |
77 | ||
78 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { | |
79 | fBusy = kTRUE; | |
80 | FetchEvent(); | |
81 | fBusy = kFALSE; | |
82 | } else { | |
83 | //StopBufferMonitor(); | |
84 | fBusy = kFALSE; | |
85 | } | |
86 | } | |
87 | } | |
88 | ||
89 | ///_______________________________________________________________________________ | |
90 | TObject * AliEveEventBuffer::NextEvent() { | |
91 | //See header file for documentation | |
92 | if(fBusy) { | |
93 | cout << "Event Buffer busy"<<endl; | |
94 | return NULL; | |
95 | } | |
96 | else SetBusy(kTRUE); | |
97 | cout << "In enxtevent"<<endl; | |
98 | TObject * nextEvent = GetNextUnSeen(); | |
99 | SetBusy(kFALSE); | |
100 | return nextEvent; | |
101 | } | |
102 | ||
103 | ///______________________________________________________________________________ | |
104 | TObject * AliEveEventBuffer::Back() { | |
105 | cout << "go back"<<endl; | |
106 | PrintIndeces(); | |
107 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
108 | if(prevId == fBIndex[kTop]) { | |
109 | cout << "returning NULL" << endl; | |
110 | return NULL; | |
111 | } else { | |
112 | fBIndex[kCurrent] = prevId; | |
113 | PrintIndeces(); | |
114 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
115 | return fEventBuffer->At(fBIndex[kCurrent]); | |
116 | } | |
117 | } | |
118 | ||
119 | ///______________________________________________________________________________ | |
120 | TObject * AliEveEventBuffer::Fwd() { | |
121 | PrintIndeces(); | |
122 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
123 | cout<< "returning NULL"<<endl; | |
124 | return NULL; | |
125 | } | |
126 | ||
127 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
128 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
129 | return event; | |
130 | } | |
131 | ||
132 | ||
133 | ||
134 | ///________________________________________________________________________________ | |
135 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
136 | //See header file for documentation | |
137 | cout << "GetNextUnSeend"<<endl; | |
138 | PrintIndeces(); | |
139 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
140 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
141 | fBIndex[kCurrent] = fBIndex[kLast]; | |
142 | PrintIndeces(); | |
143 | return fEventBuffer->At(fBIndex[kCurrent]); | |
144 | } else { | |
145 | cout << "No new event available, only events in buffer available!"<<endl; | |
146 | return NULL; | |
147 | } | |
148 | } | |
149 | ///_________________________________________________________________________________ | |
150 | void AliEveEventBuffer::PrintIndeces() { | |
151 | for(Int_t i = 0; i < kSize; i++) { | |
152 | cout << i << ": " << fBIndex[i] << endl; | |
153 | } | |
154 | } | |
155 | ///_________________________________________________________________________________ | |
156 | void AliEveEventBuffer::PrintBuffer() { | |
157 | for(Int_t i = 0; i < 10; i++) { | |
158 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
159 | if(event) { | |
160 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
161 | } | |
162 | } | |
163 | } | |
164 | ||
165 | ///____________________________________________________________________________________ | |
166 | void AliEveEventBuffer::FetchEvent() { | |
167 | cout << "FetchEvent " << endl; | |
168 | TObject * event = GetEventFromSource(); | |
169 | if(event) AddToBuffer(event); | |
170 | PrintIndeces(); | |
171 | cout << "FetchedEvent " << endl; | |
172 | ||
173 | } | |
174 | ||
175 | ///_________________________________________________________________________________ | |
176 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
177 | cout << "Add to buffer"<<endl; | |
178 | if(!event) return; | |
179 | ||
180 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
181 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
182 | TObject * object = fEventBuffer->At(fBIndex[kTop]); | |
183 | if (object) delete object; | |
184 | fEventBuffer->AddAt(event, fBIndex[kTop]); | |
185 | } | |
186 | ||
187 | ||
188 | ||
189 | ///_____________________________________________________________________________________ | |
190 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) { | |
191 | //See header file for documentation | |
192 | current++; | |
193 | if(current == fBufferSize) current = 0; | |
194 | return current; | |
195 | } | |
196 | ||
197 | ||
198 | ///_____________________________________________________________________________________ | |
199 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) { | |
200 | //See header file for documentation | |
201 | cout << "CalculatePrev: " << current; | |
202 | current--; | |
203 | if(current == -1) current += fBufferSize; | |
204 | cout << "... " << current << endl; | |
205 | return current; | |
206 | } | |
207 | ||
208 | ///__________________________________________________________________________________ | |
209 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) { | |
210 | //See header file for documentation | |
211 | if (top > low) { | |
212 | // cout << "top > low"<<endl; | |
213 | return (top - low); | |
214 | } else if (top < low) { | |
215 | // cout << "low < top"<<endl; | |
216 | return (fBufferSize - low + top); | |
217 | } else { | |
218 | //cout << "calculated to 0"<<endl; | |
219 | return 0; | |
220 | } | |
221 | } | |
222 | ||
223 | ///___________________________________________________________________________________ | |
224 | void AliEveEventBuffer::StartBufferMonitor() { | |
225 | //cout << "NOT !!! starting buffer mon"<<endl; | |
226 | cout << "starting buffer mon"<<endl; | |
227 | fTimer->Start(5000); | |
228 | } | |
229 | ///___________________________________________________________________________________ | |
230 | void AliEveEventBuffer::StopBufferMonitor() { | |
231 | cout << "Stopping buffer mon"<<endl; | |
232 | fTimer->Stop(); | |
233 | } | |
234 | ||
235 | ||
236 | // //_________________________________________________________________________________ | |
237 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
238 | // // see header file for class documentation | |
239 | ||
240 | // // -- reached the end of the buffer | |
241 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
242 | // return -1; | |
243 | ||
244 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
245 | // if ( newIdx == -1 ) | |
246 | // newIdx = BUFFERSIZE-1; | |
247 | ||
248 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
249 | ||
250 | // return newIdx; | |
251 | // } | |
252 | ||
253 | // //_______________________________________________________________ | |
254 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
255 | // // see header file for class documentation | |
256 | ||
257 | // // -- reached the top of the buffer | |
258 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
259 | // return -1; | |
260 | ||
261 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
262 | // if ( newIdx == BUFFERSIZE ) | |
263 | // newIdx = 0; | |
264 | ||
265 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
266 | ||
267 | // return newIdx; | |
268 | // } | |
269 | ||
270 | // void AliEveEventBuffer::MonitorBuffer() { | |
271 | // //See header file for documentation | |
272 | // if( GetNAvailableEvents() < 10) { | |
273 | // StopBufferChecker(); | |
274 | // StartLoop(); | |
275 | // } | |
276 | // } | |
277 | ||
278 | // void AliEveEventBuffer::StartLoop() { | |
279 | // //See header file for documentation | |
280 | // fTimer->Start(2000); | |
281 | // } | |
282 | // void AliEveEventBuffer::StopLoop() { | |
283 | // //See header file for documentation | |
284 | // fTimer->Stop(); | |
285 | // } | |
286 | ||
287 | // void AliEveEventBuffer::StartBufferChecker() { | |
288 | // //See header file for documentation | |
289 | // fBufferTimer->Start(2000); | |
290 | // } | |
291 | // void AliEveEventBuffer::StopBufferChecker() { | |
292 | // //See header file for documentation | |
293 | // fBufferTimer->Stop(); | |
294 | // } | |
295 | ||
296 | // AliESDEvent * GetNextEvent() { | |
297 | ||
298 | // tree->GetEntry(fEvent++); | |
299 | ||
300 | // AliESDEvent * event = new AliESDEvent(); | |
301 | // event->ReadFromTree(fTree); | |
302 | // if (event) { | |
303 | // return event; | |
304 | // } else { | |
305 | // cout << "error getting event" << endl; | |
306 | // return NULL; | |
307 | // } | |
308 | // } |