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),
94 // Default constructor
99 TString AliFlatESDEvent::GetFiredTriggerClasses() const
101 // Fired trigger classes
103 const AliFlatESDTrigger *tr = GetTriggerClasses();
104 ULong64_t mask = GetTriggerMask() | GetTriggerMaskNext50();
105 for(Int_t i = 0; i < GetNumberOfTriggerClasses(); i++) {
106 int index = tr->GetTriggerIndex();
107 if( mask & (1ull<<index) ){
109 trclasses += tr->GetTriggerClassName();
113 tr = tr->GetNextTrigger();
118 void AliFlatESDEvent::Reset()
128 fBunchCrossNumber = 0;
129 fPrimaryVertexMask = 0;
131 fTriggerMaskNext50 = 0;
132 fNTriggerClasses = 0;
133 fNPrimaryVertices = 0;
137 fPrimaryVertexTracksPointer = 0;
138 fPrimaryVertexSPDPointer = 0;
139 fTrackTablePointer = 0;
144 // _______________________________________________________________________________________________________
145 ULong64_t AliFlatESDEvent::EstimateSize(AliESDEvent *esd, Bool_t fillV0s)
147 // Estimate upper limit of the object size
148 // -> Added objects have to be added here as well
150 ULong64_t size = sizeof(AliFlatESDEvent);
151 size += 2 * sizeof( AliFlatESDVertex );
152 size += esd->GetNumberOfTracks() * ( AliFlatESDTrack::EstimateSize() + sizeof(Long64_t) );
153 if( fillV0s ) size += esd->GetNumberOfV0s()*sizeof(AliFlatESDV0);
157 Int_t AliFlatESDEvent::SetPrimaryVertexTracks( const AliESDVertex *vtx, size_t allocatedVtxMemory )
159 // fill primary vertex tracks
161 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
162 fPrimaryVertexMask |= 0x1;
163 fPrimaryVertexTracksPointer = fContentSize;
164 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
165 flatVtx->Set( *vtx );
166 fContentSize += flatVtx->GetSize();
170 Int_t AliFlatESDEvent::SetPrimaryVertexSPD( const AliESDVertex *vtx, size_t allocatedVtxMemory )
172 // fill primary vertex SPD
174 if( allocatedVtxMemory < sizeof(AliFlatESDVertex) ) return -1;
175 fPrimaryVertexMask |= 0x2;
176 fPrimaryVertexSPDPointer = fContentSize;
177 AliFlatESDVertex *flatVtx = reinterpret_cast<AliFlatESDVertex*> (fContent + fContentSize);
178 flatVtx->Set( *vtx );
179 fContentSize += flatVtx->GetSize();
184 // _______________________________________________________________________________________________________
185 Int_t AliFlatESDEvent::SetFromESD( const size_t allocatedMemorySize, const AliESDEvent *esd, const Bool_t fillV0s)
187 // Fill flat ESD event from normal ALiESDEvent
188 // - Fill tracks + v0s
189 // -> Added objects have to be added here as well
191 if( allocatedMemorySize < sizeof(AliFlatESDEvent) ) return -1;
198 size_t freeSpace = allocatedMemorySize - GetSize();
202 SetMagneticField( esd->GetMagneticField() );
203 SetPeriodNumber( esd->GetPeriodNumber() );
204 SetRunNumber( esd->GetRunNumber() );
205 SetOrbitNumber( esd->GetOrbitNumber() );
206 SetBunchCrossNumber( esd->GetBunchCrossNumber() );
207 SetTimeStamp( esd->GetTimeStamp() );
208 SetEventSpecie( esd->GetEventSpecie() );
209 SetTriggerMask( esd->GetTriggerMask() );
210 SetTriggerMaskNext50( esd->GetTriggerMaskNext50() );
213 // Fill trigger information
215 size_t triggerSize = 0;
217 AliFlatESDTrigger *trigger = SetTriggersStart();
218 const AliESDRun* esdRun = esd->GetESDRun();
220 for( int index=0; index<AliESDRun::kNTriggerClasses; index++){
221 const char* name = esdRun->GetTriggerClass(index);
222 if( name && name[0]!='\0' ){
223 err = trigger->SetTriggerClass( name, index, freeSpace );
224 if( err!=0 ) return err;
226 freeSpace -= trigger->GetSize();
227 triggerSize += trigger->GetSize();
228 trigger = trigger->GetNextTriggerNonConst();
232 SetTriggersEnd( nTriggers, triggerSize );
235 // fill primary vertices
237 err = SetPrimaryVertexTracks( esd->GetPrimaryVertexTracks(), freeSpace );
238 if( err!=0 ) return err;
239 freeSpace = allocatedMemorySize - GetSize();
241 err = SetPrimaryVertexSPD( esd->GetPrimaryVertexSPD(), freeSpace );
242 if( err!=0 ) return err;
243 freeSpace = allocatedMemorySize - GetSize();
247 size_t trackSize = 0;
249 Long64_t *table = NULL;
250 AliFlatESDTrack *flatTrack = NULL;
251 err = SetTracksStart( flatTrack, table, esd->GetNumberOfTracks(), freeSpace );
252 if( err!=0 ) return err;
253 freeSpace = allocatedMemorySize - GetSize();
255 for (Int_t idxTrack = 0; idxTrack < esd->GetNumberOfTracks(); ++idxTrack) {
256 AliESDtrack *esdTrack = esd->GetTrack(idxTrack);
257 table[idxTrack] = -1;
259 table[idxTrack] = trackSize;
260 if( freeSpace<flatTrack->EstimateSize() ) return -1;
261 new (flatTrack) AliFlatESDTrack;
262 flatTrack->Set( esdTrack );
263 trackSize += flatTrack->GetSize();
264 freeSpace -= flatTrack->GetSize();
266 flatTrack = flatTrack->GetNextTrack();
269 SetTracksEnd( nTracks, trackSize );
277 AliFlatESDV0 *flatV0 = SetV0sStart();
278 for( int i=0; i < esd->GetNumberOfV0s(); i++){
279 AliESDv0 *esdV0 = esd->GetV0( i );
280 if( !esdV0 || freeSpace < flatV0->GetSize() ) return -1;
281 new (flatV0) AliFlatESDV0;
282 flatV0->SetNegTrackID( esdV0->GetNindex());
283 flatV0->SetPosTrackID( esdV0->GetPindex());
285 v0size += flatV0->GetSize();
286 freeSpace -= flatV0->GetSize();
288 SetV0sEnd( nV0s, v0size );