3 /**************************************************************************
4 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
6 * Author: The ALICE Off-line Project. *
7 * Contributors are mentioned in the code where appropriate. *
9 * Permission to use, copy, modify and distribute this software and its *
10 * documentation strictly for non-commercial purposes is hereby granted *
11 * without fee, provided that the above copyright notice appears in all *
12 * copies and that both the copyright notice and this permission notice *
13 * appear in the supporting documentation. The authors make no claims *
14 * about the suitability of this software for any purpose. It is *
15 * provided "as is" without express or implied warranty. *
16 **************************************************************************/
19 * >> Flat structure representing an ESD <<
21 * To be used in the online and offline calibration schema.
23 * Class provides interface methods for
24 * - Filling from AliESDEvent, but also from HLT (to be added)
27 * In the online case, the structure can be directly written into a shared
28 * memory, in the offline case, the size has to be estimated first.
31 * Primary Authors : Sergey Gorbunov, Jochen Thaeder, Chiara Zampolli
33 * ************************************************************************
37 * AliESDEvent* esd = ....;
38 * Bool_t useESDFriends = kTRUE;
40 * // -- Book memory for AliFlatESDEvent
41 * Byte_t *mem = new Byte_t[AliFlatESDEvent::EstimateSize(esd, useESDFriends)];
42 * AliFlatESDEvent *flatEsd = reinterpret_cast<AliFlatESDEvent*>(mem);
44 * // -- Fill AliFlatESDEvent
45 * flatEsd->Fill(esd, useESDFriends);
48 **************************************************************************/
50 #include "AliESDEvent.h"
51 #include "AliESDtrack.h"
52 #include "AliESDfriend.h"
55 #include "AliFlatESDEvent.h"
56 #include "AliFlatESDTrack.h"
57 #include "AliFlatTPCCluster.h"
58 #include "AliFlatExternalTrackParam.h"
59 #include "Riostream.h"
61 #include "AliFlatESDVertex.h"
63 #include "AliFlatESDV0.h"
64 #include "AliFlatESDTrigger.h"
66 #include "AliESDEvent.h"
67 #include "AliESDVertex.h"
69 // _______________________________________________________________________________________________________
70 AliFlatESDEvent::AliFlatESDEvent()
81 fPrimaryVertexMask(0),
83 fTriggerMaskNext50(0),
89 fPrimaryVertexTracksPointer(0),
90 fPrimaryVertexSPDPointer(0),
91 fTrackTablePointer(0),
95 // Default constructor
100 AliFlatESDEvent::AliFlatESDEvent( AliVVConstructorReinitialisationFlag f )
103 fContentSize(fContentSize),
104 fMagneticField(fMagneticField),
105 fPeriodNumber(fPeriodNumber),
106 fRunNumber(fRunNumber),
107 fOrbitNumber(fOrbitNumber),
108 fTimeStamp(fTimeStamp),
109 fEventSpecie(fEventSpecie),
110 fBunchCrossNumber(fBunchCrossNumber),
111 fPrimaryVertexMask(fPrimaryVertexMask),
112 fTriggerMask(fTriggerMask),
113 fTriggerMaskNext50(fTriggerMaskNext50),
114 fNTriggerClasses(fNTriggerClasses),
115 fNPrimaryVertices(fNPrimaryVertices),
118 fTriggerPointer(fTriggerPointer),
119 fPrimaryVertexTracksPointer(fPrimaryVertexTracksPointer),
120 fPrimaryVertexSPDPointer(fPrimaryVertexSPDPointer),
121 fTrackTablePointer(fTrackTablePointer),
122 fTracksPointer(fTracksPointer),
123 fV0Pointer(fV0Pointer)
125 // Constructor for reinitialisation of vtable
128 // Reinitialise trigger information
130 AliFlatESDTrigger * trigger = reinterpret_cast< AliFlatESDTrigger*>( fContent + fTriggerPointer );
131 for( UInt_t i=0; i<fNTriggerClasses; i++ ){
132 trigger->Reinitialize();
133 trigger = trigger->GetNextTriggerNonConst();
137 // Reinitialise primary vertices
139 if( fPrimaryVertexMask & 0x1 ){
140 AliFlatESDVertex *vtxSPD = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexSPDPointer);
141 vtxSPD->Reinitialize();
143 if( fPrimaryVertexMask & 0x2 ){
144 AliFlatESDVertex *vtxTracks = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexTracksPointer);
145 vtxTracks->Reinitialize();
148 // Reinitialise tracks
150 AliFlatESDTrack *track = reinterpret_cast<AliFlatESDTrack*>( fContent + fTracksPointer );
151 for( UInt_t i=0; i<fNTracks; i++ ){
152 track->Reinitialize();
153 track = track->GetNextTrackNonConst();
159 AliFlatESDV0 *v0 = reinterpret_cast<AliFlatESDV0*>( fContent + fV0Pointer );
160 for( UInt_t i=0; i < fNV0s; i++){
162 v0 = v0->GetNextV0NonConst();
168 TString AliFlatESDEvent::GetFiredTriggerClasses() const
170 // Fired trigger classes
172 const AliFlatESDTrigger *tr = GetTriggerClasses();
173 ULong64_t mask = GetTriggerMask() | GetTriggerMaskNext50();
174 for(Int_t i = 0; i < GetNumberOfTriggerClasses(); i++) {
175 int index = tr->GetTriggerIndex();
176 if( mask & (1ull<<index) ){
178 trclasses += tr->GetTriggerClassName();
182 tr = tr->GetNextTrigger();
187 void AliFlatESDEvent::Reset()
197 fBunchCrossNumber = 0;
198 fPrimaryVertexMask = 0;
200 fTriggerMaskNext50 = 0;
201 fNTriggerClasses = 0;
202 fNPrimaryVertices = 0;
206 fPrimaryVertexTracksPointer = 0;
207 fPrimaryVertexSPDPointer = 0;
208 fTrackTablePointer = 0;
213 // _______________________________________________________________________________________________________
214 ULong64_t AliFlatESDEvent::EstimateSize(AliESDEvent *esd, Bool_t fillV0s)
216 // Estimate upper limit of the object size
217 // -> Added objects have to be added here as well
219 ULong64_t size = sizeof(AliFlatESDEvent);
220 size += 2 * sizeof( AliFlatESDVertex );
221 size += esd->GetNumberOfTracks() * ( AliFlatESDTrack::EstimateSize() + sizeof(Long64_t) );
222 if( fillV0s ) size += esd->GetNumberOfV0s()*sizeof(AliFlatESDV0);
226 Int_t AliFlatESDEvent::SetPrimaryVertexTracks( const AliESDVertex *vtx, size_t allocatedVtxMemory )
228 // fill primary vertex tracks
230 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
231 fPrimaryVertexMask |= 0x1;
232 fPrimaryVertexTracksPointer = fContentSize;
233 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
234 flatVtx->Set( *vtx );
235 fContentSize += flatVtx->GetSize();
239 Int_t AliFlatESDEvent::SetPrimaryVertexSPD( const AliESDVertex *vtx, size_t allocatedVtxMemory )
241 // fill primary vertex SPD
243 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
244 fPrimaryVertexMask |= 0x2;
245 fPrimaryVertexSPDPointer = fContentSize;
246 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
247 flatVtx->Set( *vtx );
248 fContentSize += flatVtx->GetSize();
253 // _______________________________________________________________________________________________________
254 Int_t AliFlatESDEvent::SetFromESD( const size_t allocatedMemorySize, const AliESDEvent *esd, const Bool_t fillV0s)
256 // Fill flat ESD event from normal ALiESDEvent
257 // - Fill tracks + v0s
258 // -> Added objects have to be added here as well
260 if( allocatedMemorySize < sizeof(AliFlatESDEvent) ) return -1;
267 size_t freeSpace = allocatedMemorySize - GetSize();
271 SetMagneticField( esd->GetMagneticField() );
272 SetPeriodNumber( esd->GetPeriodNumber() );
273 SetRunNumber( esd->GetRunNumber() );
274 SetOrbitNumber( esd->GetOrbitNumber() );
275 SetBunchCrossNumber( esd->GetBunchCrossNumber() );
276 SetTimeStamp( esd->GetTimeStamp() );
277 SetEventSpecie( esd->GetEventSpecie() );
278 SetTriggerMask( esd->GetTriggerMask() );
279 SetTriggerMaskNext50( esd->GetTriggerMaskNext50() );
282 // Fill trigger information
284 size_t triggerSize = 0;
286 AliFlatESDTrigger *trigger = SetTriggersStart();
287 const AliESDRun* esdRun = esd->GetESDRun();
289 for( int index=0; index<AliESDRun::kNTriggerClasses; index++){
290 const char* name = esdRun->GetTriggerClass(index);
291 if( name && name[0]!='\0' ){
292 err = trigger->SetTriggerClass( name, index, freeSpace );
293 if( err!=0 ) return err;
295 freeSpace -= trigger->GetSize();
296 triggerSize += trigger->GetSize();
297 trigger = trigger->GetNextTriggerNonConst();
301 SetTriggersEnd( nTriggers, triggerSize );
304 // fill primary vertices
306 err = SetPrimaryVertexTracks( esd->GetPrimaryVertexTracks(), freeSpace );
307 if( err!=0 ) return err;
308 freeSpace = allocatedMemorySize - GetSize();
310 err = SetPrimaryVertexSPD( esd->GetPrimaryVertexSPD(), freeSpace );
311 if( err!=0 ) return err;
312 freeSpace = allocatedMemorySize - GetSize();
316 size_t trackSize = 0;
318 Long64_t *table = NULL;
319 AliFlatESDTrack *flatTrack = NULL;
320 err = SetTracksStart( flatTrack, table, esd->GetNumberOfTracks(), freeSpace );
321 if( err!=0 ) return err;
322 freeSpace = allocatedMemorySize - GetSize();
324 for (Int_t idxTrack = 0; idxTrack < esd->GetNumberOfTracks(); ++idxTrack) {
325 AliESDtrack *esdTrack = esd->GetTrack(idxTrack);
326 table[idxTrack] = -1;
328 table[idxTrack] = trackSize;
329 if( freeSpace<flatTrack->EstimateSize() ) return -1;
330 new (flatTrack) AliFlatESDTrack;
331 flatTrack->Set( esdTrack );
332 trackSize += flatTrack->GetSize();
333 freeSpace -= flatTrack->GetSize();
335 flatTrack = flatTrack->GetNextTrackNonConst();
338 SetTracksEnd( nTracks, trackSize );
346 AliFlatESDV0 *flatV0 = SetV0sStart();
347 for( int i=0; i < esd->GetNumberOfV0s(); i++){
348 AliESDv0 *esdV0 = esd->GetV0( i );
349 if( !esdV0 || freeSpace < flatV0->GetSize() ) return -1;
350 new (flatV0) AliFlatESDV0;
351 flatV0->SetNegTrackID( esdV0->GetNindex());
352 flatV0->SetPosTrackID( esdV0->GetPindex());
354 v0size += flatV0->GetSize();
355 freeSpace -= flatV0->GetSize();
356 flatV0 = flatV0->GetNextV0NonConst();
358 SetV0sEnd( nV0s, v0size );