Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/management/src/G4SolidStore.cc

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  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
  4 // *                                                                  *
  5 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
  6 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
  7 // * conditions of the Geant4 Software License,  included in the file *
  8 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
  9 // * include a list of copyright holders.                             *
 10 // *                                                                  *
 11 // * Neither the authors of this software system, nor their employing *
 12 // * institutes,nor the agencies providing financial support for this *
 13 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file  LICENSE  and URL above *
 16 // * for the full disclaimer and the limitation of liability.         *
 17 // *                                                                  *
 18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboration.                      *
 20 // * By using,  copying,  modifying or  distributing the software (or *
 21 // * any work based  on the software)  you  agree  to acknowledge its *
 22 // * use  in  resulting  scientific  publications,  and indicate your *
 23 // * acceptance of all terms of the Geant4 Software license.          *
 24 // ********************************************************************
 25 //
 26 // G4SolidStore implementation
 27 //
 28 // 10.07.95, P.Kent, G.Cosmo
 29 // --------------------------------------------------------------------
 30 
 31 #include "globals.hh"
 32 #include "G4SolidStore.hh"
 33 #include "G4GeometryManager.hh"
 34 
 35 #include "G4AutoLock.hh"
 36 
 37 namespace
 38 {
 39   G4Mutex mapMutex = G4MUTEX_INITIALIZER;
 40 }
 41 
 42 // ***************************************************************************
 43 // Static class variables
 44 // ***************************************************************************
 45 //
 46 G4SolidStore* G4SolidStore::fgInstance = nullptr;
 47 G4ThreadLocal G4VStoreNotifier* G4SolidStore::fgNotifier = nullptr;
 48 G4ThreadLocal G4bool G4SolidStore::locked = false;
 49 
 50 // ***************************************************************************
 51 // Protected constructor: Construct underlying container with
 52 // initial size of 100 entries
 53 // ***************************************************************************
 54 //
 55 G4SolidStore::G4SolidStore()
 56    
 57 {
 58   reserve(100);
 59 }
 60 
 61 // ***************************************************************************
 62 // Destructor
 63 // ***************************************************************************
 64 //
 65 G4SolidStore::~G4SolidStore() 
 66 {
 67   Clean();
 68 }
 69 
 70 // ***************************************************************************
 71 // Delete all elements from the store
 72 // ***************************************************************************
 73 //
 74 void G4SolidStore::Clean()
 75 {
 76   // Do nothing if geometry is closed
 77   //
 78   if (G4GeometryManager::GetInstance()->IsGeometryClosed())
 79   {
 80     G4cout << "WARNING - Attempt to delete the solid store"
 81            << " while geometry closed !" << G4endl;
 82     return;
 83   }
 84 
 85   // Locks store for deletion of solids. De-registration will be
 86   // performed at this stage. G4VSolids will not de-register themselves.
 87   //
 88   locked = true;  
 89 
 90   G4SolidStore* store = GetInstance();
 91 
 92   for(auto pos=store->cbegin(); pos!=store->cend(); ++pos)
 93   {
 94     if (fgNotifier != nullptr) { fgNotifier->NotifyDeRegistration(); }
 95     delete *pos;
 96   }
 97 
 98   store->bmap.clear(); store->mvalid = false;
 99   locked = false;
100   store->clear();
101 }
102 
103 // ***************************************************************************
104 // Associate user notifier to the store
105 // ***************************************************************************
106 //
107 void G4SolidStore::SetNotifier(G4VStoreNotifier* pNotifier)
108 {
109   GetInstance();
110   fgNotifier = pNotifier;
111 }
112 
113 // ***************************************************************************
114 // Bring contents of internal map up to date and reset validity flag
115 // ***************************************************************************
116 //
117 void G4SolidStore::UpdateMap()
118 {
119   G4AutoLock l(&mapMutex);  // to avoid thread contention at initialisation
120   if (mvalid) return;
121   bmap.clear();
122   for(auto pos=GetInstance()->cbegin(); pos!=GetInstance()->cend(); ++pos)
123   {
124     const G4String& sol_name = (*pos)->GetName();
125     auto it = bmap.find(sol_name);
126     if (it != bmap.cend())
127     {
128       it->second.push_back(*pos);
129     }
130     else
131     {
132       std::vector<G4VSolid*> sol_vec { *pos };
133       bmap.insert(std::make_pair(sol_name, sol_vec));
134     }
135   }
136   mvalid = true;
137   l.unlock();
138 }
139 
140 // ***************************************************************************
141 // Add Solid to container
142 // ***************************************************************************
143 //
144 void G4SolidStore::Register(G4VSolid* pSolid)
145 {
146   G4SolidStore* store = GetInstance();
147   store->push_back(pSolid);
148   const G4String& sol_name = pSolid->GetName();
149   auto it = store->bmap.find(sol_name);
150   if (it != store->bmap.cend())
151   {
152     it->second.push_back(pSolid);
153   }
154   else
155   {
156     std::vector<G4VSolid*> sol_vec { pSolid };
157     store->bmap.insert(std::make_pair(sol_name, sol_vec));
158   }
159   if (fgNotifier != nullptr) { fgNotifier->NotifyRegistration(); }
160   store->mvalid = true;
161 }
162 
163 // ***************************************************************************
164 // Remove Solid from container
165 // ***************************************************************************
166 //
167 void G4SolidStore::DeRegister(G4VSolid* pSolid)
168 {
169   G4SolidStore* store = GetInstance();
170   if (!locked)    // Do not de-register if locked !
171   {
172     if (fgNotifier != nullptr) { fgNotifier->NotifyDeRegistration(); }
173     for (auto i=store->crbegin(); i!=store->crend(); ++i)
174     {
175       if (**i==*pSolid)
176       {
177         store->erase(std::next(i).base());
178         store->mvalid = false;
179         break;
180       }
181     }
182     const G4String& sol_name = pSolid->GetName();
183     auto it = store->bmap.find(sol_name);
184     if (it != store->bmap.cend())
185     {
186       if (it->second.size() > 1)
187       {
188         for (auto i=it->second.cbegin(); i!=it->second.cend(); ++i)
189         {
190           if (**i==*pSolid)
191           {
192             it->second.erase(i);
193             break;
194           }
195         }
196       }
197       else
198       {
199         store->bmap.erase(it);
200       }
201     }
202   }
203 }
204 
205 // ***************************************************************************
206 // Retrieve the first or last solid pointer in the container having that name
207 // ***************************************************************************
208 //
209 G4VSolid* G4SolidStore::GetSolid(const G4String& name, G4bool verbose,
210                                  G4bool reverseSearch) const
211 {
212   G4SolidStore* store = GetInstance();
213   if (!store->mvalid)  { store->UpdateMap(); }
214   auto pos = store->bmap.find(name);
215   if(pos != store->bmap.cend())
216   {
217     if ((verbose) && (pos->second.size()>1))
218     {
219       std::ostringstream message;
220       message << "There exists more than ONE solid in store named: "
221               << name << "!" << G4endl
222               << "Returning the first found.";
223       G4Exception("G4SolidStore::GetSolid()",
224                   "GeomMgt1001", JustWarning, message);
225     }
226     if(reverseSearch)
227     {
228       return pos->second[pos->second.size()-1];
229     }
230     else
231     {
232       return pos->second[0];
233     }
234   }
235   if (verbose)
236   {
237     std::ostringstream message;
238     message << "Solid " << name << " not found in store !" << G4endl
239             << "Returning NULL pointer.";
240     G4Exception("G4SolidStore::GetSolid()",
241                 "GeomMgt1001", JustWarning, message);
242   }
243   return nullptr;
244 }
245 
246 // ***************************************************************************
247 // Return ptr to Store, setting if necessary
248 // ***************************************************************************
249 //
250 G4SolidStore* G4SolidStore::GetInstance()
251 {
252   static G4SolidStore worldStore;
253   if (fgInstance == nullptr)
254   {
255     fgInstance = &worldStore;
256   }
257   return fgInstance;
258 }
259