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),
96 // Default constructor
101 AliFlatESDEvent::AliFlatESDEvent( AliVVConstructorReinitialisationFlag f )
104 fContentSize(fContentSize),
105 fMagneticField(fMagneticField),
106 fPeriodNumber(fPeriodNumber),
107 fRunNumber(fRunNumber),
108 fOrbitNumber(fOrbitNumber),
109 fTimeStamp(fTimeStamp),
110 fEventSpecie(fEventSpecie),
111 fBunchCrossNumber(fBunchCrossNumber),
112 fPrimaryVertexMask(fPrimaryVertexMask),
113 fTriggerMask(fTriggerMask),
114 fTriggerMaskNext50(fTriggerMaskNext50),
115 fNTriggerClasses(fNTriggerClasses),
116 fNPrimaryVertices(fNPrimaryVertices),
119 fTriggerPointer(fTriggerPointer),
120 fPrimaryVertexTracksPointer(fPrimaryVertexTracksPointer),
121 fPrimaryVertexSPDPointer(fPrimaryVertexSPDPointer),
122 fTrackTablePointer(fTrackTablePointer),
123 fTracksPointer(fTracksPointer),
124 fV0Pointer(fV0Pointer),
127 // Constructor for reinitialisation of vtable
130 // Reinitialise trigger information
132 AliFlatESDTrigger * trigger = reinterpret_cast< AliFlatESDTrigger*>( fContent + fTriggerPointer );
133 for( UInt_t i=0; i<fNTriggerClasses; i++ ){
134 trigger->Reinitialize();
135 trigger = trigger->GetNextTriggerNonConst();
139 // Reinitialise primary vertices
141 if( fPrimaryVertexMask & 0x1 ){
142 AliFlatESDVertex *vtxSPD = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexSPDPointer);
143 vtxSPD->Reinitialize();
145 if( fPrimaryVertexMask & 0x2 ){
146 AliFlatESDVertex *vtxTracks = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexTracksPointer);
147 vtxTracks->Reinitialize();
150 // Reinitialise tracks
152 AliFlatESDTrack *track = reinterpret_cast<AliFlatESDTrack*>( fContent + fTracksPointer );
153 for( UInt_t i=0; i<fNTracks; i++ ){
154 track->Reinitialize();
155 track = track->GetNextTrackNonConst();
161 AliFlatESDV0 *v0 = reinterpret_cast<AliFlatESDV0*>( fContent + fV0Pointer );
162 for( UInt_t i=0; i < fNV0s; i++){
164 v0 = v0->GetNextV0NonConst();
170 TString AliFlatESDEvent::GetFiredTriggerClasses() const
172 // Fired trigger classes
174 const AliFlatESDTrigger *tr = GetTriggerClasses();
175 ULong64_t mask = GetTriggerMask() | GetTriggerMaskNext50();
176 for(Int_t i = 0; i < GetNumberOfTriggerClasses(); i++) {
177 int index = tr->GetTriggerIndex();
178 if( mask & (1ull<<index) ){
180 trclasses += tr->GetTriggerClassName();
184 tr = tr->GetNextTrigger();
189 void AliFlatESDEvent::Reset()
199 fBunchCrossNumber = 0;
200 fPrimaryVertexMask = 0;
202 fTriggerMaskNext50 = 0;
203 fNTriggerClasses = 0;
204 fNPrimaryVertices = 0;
208 fPrimaryVertexTracksPointer = 0;
209 fPrimaryVertexSPDPointer = 0;
210 fTrackTablePointer = 0;
215 // _______________________________________________________________________________________________________
216 ULong64_t AliFlatESDEvent::EstimateSize(AliESDEvent *esd, Bool_t fillV0s)
218 // Estimate upper limit of the object size
219 // -> Added objects have to be added here as well
221 ULong64_t size = sizeof(AliFlatESDEvent);
222 size += 2 * sizeof( AliFlatESDVertex );
223 size += esd->GetNumberOfTracks() * ( AliFlatESDTrack::EstimateSize() + sizeof(Long64_t) );
224 if( fillV0s ) size += esd->GetNumberOfV0s()*sizeof(AliFlatESDV0);
228 Int_t AliFlatESDEvent::SetPrimaryVertexTracks( const AliESDVertex *vtx, size_t allocatedVtxMemory )
230 // fill primary vertex tracks
232 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
233 fPrimaryVertexMask |= 0x1;
234 fPrimaryVertexTracksPointer = fContentSize;
235 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
236 flatVtx->SetFromESDVertex( *vtx );
237 fContentSize += flatVtx->GetSize();
241 Int_t AliFlatESDEvent::SetPrimaryVertexSPD( const AliESDVertex *vtx, size_t allocatedVtxMemory )
243 // fill primary vertex SPD
245 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
246 fPrimaryVertexMask |= 0x2;
247 fPrimaryVertexSPDPointer = fContentSize;
248 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
249 flatVtx->SetFromESDVertex( *vtx );
250 fContentSize += flatVtx->GetSize();
255 // _______________________________________________________________________________________________________
256 Int_t AliFlatESDEvent::SetFromESD( const size_t allocatedMemorySize, const AliESDEvent *esd, const Bool_t fillV0s)
258 // Fill flat ESD event from normal ALiESDEvent
259 // - Fill tracks + v0s
260 // -> Added objects have to be added here as well
262 if( allocatedMemorySize < sizeof(AliFlatESDEvent) ) return -1;
269 size_t freeSpace = allocatedMemorySize - GetSize();
273 SetMagneticField( esd->GetMagneticField() );
274 SetPeriodNumber( esd->GetPeriodNumber() );
275 SetRunNumber( esd->GetRunNumber() );
276 SetOrbitNumber( esd->GetOrbitNumber() );
277 SetBunchCrossNumber( esd->GetBunchCrossNumber() );
278 SetTimeStamp( esd->GetTimeStamp() );
279 SetEventSpecie( esd->GetEventSpecie() );
280 SetTriggerMask( esd->GetTriggerMask() );
281 SetTriggerMaskNext50( esd->GetTriggerMaskNext50() );
284 // Fill trigger information
286 size_t triggerSize = 0;
288 AliFlatESDTrigger *trigger = SetTriggersStart();
289 const AliESDRun* esdRun = esd->GetESDRun();
291 for( int index=0; index<AliESDRun::kNTriggerClasses; index++){
292 const char* name = esdRun->GetTriggerClass(index);
293 if( name && name[0]!='\0' ){
294 err = trigger->SetTriggerClass( name, index, freeSpace );
295 if( err!=0 ) return err;
297 freeSpace -= trigger->GetSize();
298 triggerSize += trigger->GetSize();
299 trigger = trigger->GetNextTriggerNonConst();
303 SetTriggersEnd( nTriggers, triggerSize );
306 // fill primary vertices
308 err = SetPrimaryVertexTracks( esd->GetPrimaryVertexTracks(), freeSpace );
309 if( err!=0 ) return err;
310 freeSpace = allocatedMemorySize - GetSize();
312 err = SetPrimaryVertexSPD( esd->GetPrimaryVertexSPD(), freeSpace );
313 if( err!=0 ) return err;
314 freeSpace = allocatedMemorySize - GetSize();
318 size_t trackSize = 0;
320 Long64_t *table = NULL;
321 AliFlatESDTrack *flatTrack = NULL;
322 err = SetTracksStart( flatTrack, table, esd->GetNumberOfTracks(), freeSpace );
323 if( err!=0 ) return err;
324 freeSpace = allocatedMemorySize - GetSize();
326 for (Int_t idxTrack = 0; idxTrack < esd->GetNumberOfTracks(); ++idxTrack) {
327 AliESDtrack *esdTrack = esd->GetTrack(idxTrack);
328 table[idxTrack] = -1;
330 table[idxTrack] = trackSize;
331 if( freeSpace<flatTrack->EstimateSize() ) return -1;
332 new (flatTrack) AliFlatESDTrack;
333 flatTrack->SetFromESDTrack( esdTrack );
334 trackSize += flatTrack->GetSize();
335 freeSpace -= flatTrack->GetSize();
337 flatTrack = flatTrack->GetNextTrackNonConst();
340 SetTracksEnd( nTracks, trackSize );
348 AliFlatESDV0 *flatV0 = SetV0sStart();
349 for( int i=0; i < esd->GetNumberOfV0s(); i++){
350 AliESDv0 *esdV0 = esd->GetV0( i );
351 if( !esdV0 || freeSpace < flatV0->GetSize() ) return -1;
352 new (flatV0) AliFlatESDV0;
353 flatV0->SetNegTrackID( esdV0->GetNindex());
354 flatV0->SetPosTrackID( esdV0->GetPindex());
356 v0size += flatV0->GetSize();
357 freeSpace -= flatV0->GetSize();
358 flatV0 = flatV0->GetNextV0NonConst();
360 SetV0sEnd( nV0s, v0size );