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()
80 fPrimaryVertexMask(0),
82 fTriggerMaskNext50(0),
88 fPrimaryVertexTracksPointer(0),
89 fPrimaryVertexSPDPointer(0),
90 fTrackTablePointer(0),
95 // Default constructor
99 #pragma GCC diagnostic ignored "-Weffc++"
100 AliFlatESDEvent::AliFlatESDEvent( AliVConstructorReinitialisationFlag /*f*/ )
104 // Constructor for reinitialisation of vtable
106 // Reinitialise trigger information
108 AliFlatESDTrigger * trigger = reinterpret_cast< AliFlatESDTrigger*>( fContent + fTriggerPointer );
109 for( UInt_t i=0; i<fNTriggerClasses; i++ ){
110 trigger->Reinitialize();
111 trigger = trigger->GetNextTriggerNonConst();
115 // Reinitialise primary vertices
117 if( fPrimaryVertexMask & 0x1 ){
118 AliFlatESDVertex *vtxSPD = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexSPDPointer);
119 vtxSPD->Reinitialize();
121 if( fPrimaryVertexMask & 0x2 ){
122 AliFlatESDVertex *vtxTracks = reinterpret_cast<AliFlatESDVertex*>(fContent + fPrimaryVertexTracksPointer);
123 vtxTracks->Reinitialize();
126 // Reinitialise tracks
128 AliFlatESDTrack *track = reinterpret_cast<AliFlatESDTrack*>( fContent + fTracksPointer );
129 for( UInt_t i=0; i<fNTracks; i++ ){
130 track->Reinitialize();
131 track = track->GetNextTrackNonConst();
137 AliFlatESDV0 *v0 = reinterpret_cast<AliFlatESDV0*>( fContent + fV0Pointer );
138 for( UInt_t i=0; i < fNV0s; i++){
140 v0 = v0->GetNextV0NonConst();
144 #pragma GCC diagnostic warning "-Weffc++"
147 TString AliFlatESDEvent::GetFiredTriggerClasses() const
149 // Fired trigger classes
151 const AliFlatESDTrigger *tr = GetTriggerClasses();
152 ULong64_t mask = GetTriggerMask() | GetTriggerMaskNext50();
153 for(Int_t i = 0; i < GetNumberOfTriggerClasses(); i++) {
154 int index = tr->GetTriggerIndex();
155 if( mask & (1ull<<index) ){
157 trclasses += tr->GetTriggerClassName();
161 tr = tr->GetNextTrigger();
166 void AliFlatESDEvent::Reset()
176 fBunchCrossNumber = 0;
177 fPrimaryVertexMask = 0;
179 fTriggerMaskNext50 = 0;
180 fNTriggerClasses = 0;
181 fNPrimaryVertices = 0;
185 fPrimaryVertexTracksPointer = 0;
186 fPrimaryVertexSPDPointer = 0;
187 fTrackTablePointer = 0;
192 // _______________________________________________________________________________________________________
193 ULong64_t AliFlatESDEvent::EstimateSize(AliESDEvent *esd, Bool_t fillV0s)
195 // Estimate upper limit of the object size
196 // -> Added objects have to be added here as well
198 ULong64_t size = sizeof(AliFlatESDEvent);
199 size += 2 * sizeof( AliFlatESDVertex );
200 size += esd->GetNumberOfTracks() * ( AliFlatESDTrack::EstimateSize() + sizeof(Long64_t) );
201 size += AliESDRun::kNTriggerClasses * sizeof(AliFlatESDTrigger) ;
202 if( fillV0s ) size += esd->GetNumberOfV0s()*sizeof(AliFlatESDV0);
206 Int_t AliFlatESDEvent::SetPrimaryVertexTracks( const AliESDVertex *vtx, size_t allocatedVtxMemory )
208 // fill primary vertex tracks
210 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
211 fPrimaryVertexMask |= 0x1;
212 fPrimaryVertexTracksPointer = fContentSize;
213 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
214 flatVtx->SetFromESDVertex( *vtx );
215 fContentSize += flatVtx->GetSize();
219 Int_t AliFlatESDEvent::SetPrimaryVertexSPD( const AliESDVertex *vtx, size_t allocatedVtxMemory )
221 // fill primary vertex SPD
223 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
224 fPrimaryVertexMask |= 0x2;
225 fPrimaryVertexSPDPointer = fContentSize;
226 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
227 flatVtx->SetFromESDVertex( *vtx );
228 fContentSize += flatVtx->GetSize();
233 // _______________________________________________________________________________________________________
234 Int_t AliFlatESDEvent::SetFromESD( const size_t allocatedMemorySize, const AliESDEvent *esd, const Bool_t fillV0s)
236 // Fill flat ESD event from normal ALiESDEvent
237 // - Fill tracks + v0s
238 // -> Added objects have to be added here as well
240 if( allocatedMemorySize < sizeof(AliFlatESDEvent) ) return -1;
247 size_t freeSpace = allocatedMemorySize - GetSize();
251 SetMagneticField( esd->GetMagneticField() );
252 SetPeriodNumber( esd->GetPeriodNumber() );
253 SetRunNumber( esd->GetRunNumber() );
254 SetOrbitNumber( esd->GetOrbitNumber() );
255 SetBunchCrossNumber( esd->GetBunchCrossNumber() );
256 SetTimeStamp( esd->GetTimeStamp() );
257 SetEventSpecie( esd->GetEventSpecie() );
258 SetTriggerMask( esd->GetTriggerMask() );
259 SetTriggerMaskNext50( esd->GetTriggerMaskNext50() );
262 // Fill trigger information
264 size_t triggerSize = 0;
266 AliFlatESDTrigger *trigger = SetTriggersStart();
267 const AliESDRun* esdRun = esd->GetESDRun();
269 for( int index=0; index<AliESDRun::kNTriggerClasses; index++){
270 const char* name = esdRun->GetTriggerClass(index);
271 if( name && name[0]!='\0' ){
272 err = trigger->SetTriggerClass( name, index, freeSpace );
273 if( err!=0 ) return err;
275 freeSpace -= trigger->GetSize();
276 triggerSize += trigger->GetSize();
277 trigger = trigger->GetNextTriggerNonConst();
281 SetTriggersEnd( nTriggers, triggerSize );
284 // fill primary vertices
286 err = SetPrimaryVertexTracks( esd->GetPrimaryVertexTracks(), freeSpace );
287 if( err!=0 ) return err;
288 freeSpace = allocatedMemorySize - GetSize();
290 err = SetPrimaryVertexSPD( esd->GetPrimaryVertexSPD(), freeSpace );
291 if( err!=0 ) return err;
292 freeSpace = allocatedMemorySize - GetSize();
296 size_t trackSize = 0;
298 Long64_t *table = NULL;
299 AliFlatESDTrack *flatTrack = NULL;
300 err = SetTracksStart( flatTrack, table, esd->GetNumberOfTracks(), freeSpace );
301 if( err!=0 ) return err;
302 freeSpace = allocatedMemorySize - GetSize();
304 for (Int_t idxTrack = 0; idxTrack < esd->GetNumberOfTracks(); ++idxTrack) {
305 AliESDtrack *esdTrack = esd->GetTrack(idxTrack);
306 table[idxTrack] = -1;
308 table[idxTrack] = trackSize;
309 if( freeSpace<flatTrack->EstimateSize() ) return -1;
310 new (flatTrack) AliFlatESDTrack;
311 flatTrack->SetFromESDTrack( esdTrack );
312 trackSize += flatTrack->GetSize();
313 freeSpace -= flatTrack->GetSize();
315 flatTrack = flatTrack->GetNextTrackNonConst();
318 SetTracksEnd( nTracks, trackSize );
326 AliFlatESDV0 *flatV0 = SetV0sStart();
327 for( int i=0; i < esd->GetNumberOfV0s(); i++){
328 AliESDv0 *esdV0 = esd->GetV0( i );
329 if( !esdV0 || freeSpace < flatV0->GetSize() ) return -1;
330 new (flatV0) AliFlatESDV0;
331 flatV0->SetNegTrackID( esdV0->GetNindex());
332 flatV0->SetPosTrackID( esdV0->GetPindex());
334 v0size += flatV0->GetSize();
335 freeSpace -= flatV0->GetSize();
336 flatV0 = flatV0->GetNextV0NonConst();
338 SetV0sEnd( nV0s, v0size );
344 AliVParticle* AliFlatESDEvent::GetTrack(Int_t i) const
346 return const_cast<AliFlatESDTrack*>(GetFlatTrack(i));
349 AliVEvent::EDataLayoutType AliFlatESDEvent::GetDataLayoutType() const
351 return AliVEvent::kFlat;