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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 | |
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 | ||
239fdf4e | 62 | void AliEveEventBuffer::CreateBufferThread() { |
63 | cout << "hereherehere"<<endl; | |
64 | TThread * fThread = new TThread(AliEveEventBuffer::BufferThread, (void*) this); | |
65 | fThread->Run(); | |
66 | ||
67 | } | |
68 | ||
30e7579c | 69 | ///___________________________________________________________________________ |
70 | void * AliEveEventBuffer::BufferThread(void * buffer) { | |
239fdf4e | 71 | cout <<"BufferThread : " <<endl; |
b088c0a1 | 72 | if(buffer) { |
239fdf4e | 73 | if (!reinterpret_cast<AliEveEventBuffer*>(buffer)->GetBusy()) { |
74 | reinterpret_cast<AliEveEventBuffer*>(buffer)->MonitorBuffer(); | |
75 | } else { | |
76 | cout << "busy"<<endl; | |
b088c0a1 | 77 | } |
239fdf4e | 78 | |
79 | } else { | |
80 | cout << "no buffer"<<endl; | |
b088c0a1 | 81 | } |
30e7579c | 82 | return (void*)0; |
83 | } | |
84 | ||
85 | ///_____________________________________________________________________________ | |
86 | void AliEveEventBuffer::MonitorBuffer() { | |
87 | cout << "Monitorbuffer: " << endl; | |
88 | if(fBusy) { | |
89 | cout << "Already called FetchEvent()" << endl; | |
90 | return; | |
91 | } else { | |
92 | cout << "fbusy = false"<<endl; | |
93 | ||
94 | if ( (CalculateDifference(fBIndex[kTop],fBIndex[kLast]) < fPreBuffer) ) { | |
95 | fBusy = kTRUE; | |
96 | FetchEvent(); | |
97 | fBusy = kFALSE; | |
98 | } else { | |
99 | //StopBufferMonitor(); | |
100 | fBusy = kFALSE; | |
101 | } | |
102 | } | |
103 | } | |
104 | ||
105 | ///_______________________________________________________________________________ | |
106 | TObject * AliEveEventBuffer::NextEvent() { | |
107 | //See header file for documentation | |
30e7579c | 108 | cout << "In enxtevent"<<endl; |
239fdf4e | 109 | |
110 | ||
111 | // if(fBusy) { | |
112 | // cout << "Event Buffer busy"<<endl; | |
113 | // return NULL; | |
114 | // } | |
115 | // else SetBusy(kTRUE); | |
30e7579c | 116 | TObject * nextEvent = GetNextUnSeen(); |
239fdf4e | 117 | //SetBusy(kFALSE); |
30e7579c | 118 | return nextEvent; |
119 | } | |
120 | ||
121 | ///______________________________________________________________________________ | |
122 | TObject * AliEveEventBuffer::Back() { | |
123 | cout << "go back"<<endl; | |
124 | PrintIndeces(); | |
125 | Int_t prevId = CalculatePrevious(fBIndex[kCurrent]); | |
126 | if(prevId == fBIndex[kTop]) { | |
127 | cout << "returning NULL" << endl; | |
128 | return NULL; | |
129 | } else { | |
130 | fBIndex[kCurrent] = prevId; | |
131 | PrintIndeces(); | |
132 | cout <<"returning: "<< fBIndex[kCurrent] << " " << fEventBuffer->At(fBIndex[kCurrent]); | |
133 | return fEventBuffer->At(fBIndex[kCurrent]); | |
134 | } | |
135 | } | |
136 | ||
137 | ///______________________________________________________________________________ | |
138 | TObject * AliEveEventBuffer::Fwd() { | |
139 | PrintIndeces(); | |
140 | if (fBIndex[kCurrent] == fBIndex[kLast]) { | |
141 | cout<< "returning NULL"<<endl; | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | fBIndex[kCurrent] = CalculateNext(fBIndex[kCurrent]); | |
146 | TObject * event = fEventBuffer->At(fBIndex[kCurrent]); | |
147 | return event; | |
148 | } | |
149 | ||
150 | ||
151 | ||
152 | ///________________________________________________________________________________ | |
153 | TObject * AliEveEventBuffer::GetNextUnSeen() { | |
154 | //See header file for documentation | |
239fdf4e | 155 | cout << "GetNextUnSeen"<<endl; |
30e7579c | 156 | PrintIndeces(); |
157 | if(CalculateDifference(fBIndex[kTop], fBIndex[kLast])) { | |
158 | fBIndex[kLast] = CalculateNext(fBIndex[kLast]); | |
159 | fBIndex[kCurrent] = fBIndex[kLast]; | |
160 | PrintIndeces(); | |
161 | return fEventBuffer->At(fBIndex[kCurrent]); | |
162 | } else { | |
163 | cout << "No new event available, only events in buffer available!"<<endl; | |
164 | return NULL; | |
165 | } | |
166 | } | |
167 | ///_________________________________________________________________________________ | |
168 | void AliEveEventBuffer::PrintIndeces() { | |
169 | for(Int_t i = 0; i < kSize; i++) { | |
170 | cout << i << ": " << fBIndex[i] << endl; | |
171 | } | |
172 | } | |
173 | ///_________________________________________________________________________________ | |
174 | void AliEveEventBuffer::PrintBuffer() { | |
175 | for(Int_t i = 0; i < 10; i++) { | |
176 | AliESDEvent * event = dynamic_cast<AliESDEvent*>(fEventBuffer->At(i)); | |
177 | if(event) { | |
178 | cout << i << ": " <<event << " " << event->GetEventNumberInFile() << endl;; | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | ///____________________________________________________________________________________ | |
184 | void AliEveEventBuffer::FetchEvent() { | |
185 | cout << "FetchEvent " << endl; | |
186 | TObject * event = GetEventFromSource(); | |
187 | if(event) AddToBuffer(event); | |
188 | PrintIndeces(); | |
189 | cout << "FetchedEvent " << endl; | |
190 | ||
191 | } | |
192 | ||
193 | ///_________________________________________________________________________________ | |
194 | void AliEveEventBuffer::AddToBuffer(TObject * event) { | |
195 | cout << "Add to buffer"<<endl; | |
196 | if(!event) return; | |
197 | ||
198 | fBIndex[kTop] = CalculateNext(fBIndex[kTop]); | |
199 | //Delete the event already there (ok to delete as object, not aliesdevent, TList?) | |
239fdf4e | 200 | //TObject * object = fEventBuffer->At(fBIndex[kTop]); |
201 | fEventBuffer->RemoveAt(fBIndex[kTop]); | |
202 | //if (object) delete object; | |
30e7579c | 203 | fEventBuffer->AddAt(event, fBIndex[kTop]); |
204 | } | |
205 | ||
206 | ||
207 | ||
208 | ///_____________________________________________________________________________________ | |
209 | Int_t AliEveEventBuffer::CalculateNext(Int_t current) { | |
210 | //See header file for documentation | |
211 | current++; | |
212 | if(current == fBufferSize) current = 0; | |
213 | return current; | |
214 | } | |
215 | ||
216 | ||
217 | ///_____________________________________________________________________________________ | |
218 | Int_t AliEveEventBuffer::CalculatePrevious(Int_t current) { | |
219 | //See header file for documentation | |
220 | cout << "CalculatePrev: " << current; | |
221 | current--; | |
222 | if(current == -1) current += fBufferSize; | |
223 | cout << "... " << current << endl; | |
224 | return current; | |
225 | } | |
226 | ||
227 | ///__________________________________________________________________________________ | |
228 | Int_t AliEveEventBuffer::CalculateDifference(Int_t top, Int_t low) { | |
229 | //See header file for documentation | |
230 | if (top > low) { | |
231 | // cout << "top > low"<<endl; | |
232 | return (top - low); | |
233 | } else if (top < low) { | |
234 | // cout << "low < top"<<endl; | |
235 | return (fBufferSize - low + top); | |
236 | } else { | |
237 | //cout << "calculated to 0"<<endl; | |
238 | return 0; | |
239 | } | |
240 | } | |
241 | ||
242 | ///___________________________________________________________________________________ | |
243 | void AliEveEventBuffer::StartBufferMonitor() { | |
244 | //cout << "NOT !!! starting buffer mon"<<endl; | |
245 | cout << "starting buffer mon"<<endl; | |
239fdf4e | 246 | SetBufferMonStarted(kTRUE); |
30e7579c | 247 | fTimer->Start(5000); |
248 | } | |
249 | ///___________________________________________________________________________________ | |
250 | void AliEveEventBuffer::StopBufferMonitor() { | |
251 | cout << "Stopping buffer mon"<<endl; | |
239fdf4e | 252 | SetBufferMonStarted(kFALSE); |
30e7579c | 253 | fTimer->Stop(); |
254 | } | |
255 | ||
256 | ||
257 | // //_________________________________________________________________________________ | |
258 | // Int_t AliEveEventBuffer::NavigateEventBufferBack() { | |
259 | // // see header file for class documentation | |
260 | ||
261 | // // -- reached the end of the buffer | |
262 | // if ( fNavigateBufferIdx == fBufferLowIdx ) | |
263 | // return -1; | |
264 | ||
265 | // Int_t newIdx = fNavigateBufferIdx - 1; | |
266 | // if ( newIdx == -1 ) | |
267 | // newIdx = BUFFERSIZE-1; | |
268 | ||
269 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
270 | ||
271 | // return newIdx; | |
272 | // } | |
273 | ||
274 | // //_______________________________________________________________ | |
275 | // Int_t AliEveEventBuffer::NavigateEventBufferFwd() { | |
276 | // // see header file for class documentation | |
277 | ||
278 | // // -- reached the top of the buffer | |
279 | // if ( fNavigateBufferIdx == fBufferTopIdx ) | |
280 | // return -1; | |
281 | ||
282 | // Int_t newIdx = fNavigateBufferIdx + 1; | |
283 | // if ( newIdx == BUFFERSIZE ) | |
284 | // newIdx = 0; | |
285 | ||
286 | // fCurrentBufferIdx = fNavigateBufferIdx = newIdx; | |
287 | ||
288 | // return newIdx; | |
289 | // } | |
290 | ||
291 | // void AliEveEventBuffer::MonitorBuffer() { | |
292 | // //See header file for documentation | |
293 | // if( GetNAvailableEvents() < 10) { | |
294 | // StopBufferChecker(); | |
295 | // StartLoop(); | |
296 | // } | |
297 | // } | |
298 | ||
299 | // void AliEveEventBuffer::StartLoop() { | |
300 | // //See header file for documentation | |
301 | // fTimer->Start(2000); | |
302 | // } | |
303 | // void AliEveEventBuffer::StopLoop() { | |
304 | // //See header file for documentation | |
305 | // fTimer->Stop(); | |
306 | // } | |
307 | ||
308 | // void AliEveEventBuffer::StartBufferChecker() { | |
309 | // //See header file for documentation | |
310 | // fBufferTimer->Start(2000); | |
311 | // } | |
312 | // void AliEveEventBuffer::StopBufferChecker() { | |
313 | // //See header file for documentation | |
314 | // fBufferTimer->Stop(); | |
315 | // } | |
316 | ||
317 | // AliESDEvent * GetNextEvent() { | |
318 | ||
319 | // tree->GetEntry(fEvent++); | |
320 | ||
321 | // AliESDEvent * event = new AliESDEvent(); | |
322 | // event->ReadFromTree(fTree); | |
323 | // if (event) { | |
324 | // return event; | |
325 | // } else { | |
326 | // cout << "error getting event" << endl; | |
327 | // return NULL; | |
328 | // } | |
329 | // } |