Gabriele Cosmo
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
|
|
#ifndef IAEASourceIdRegistry_hh
|
|
#define IAEASourceIdRegistry_hh 1
|
|
|
|
#include <bitset>
|
|
#include "G4AutoLock.hh"
|
|
#include "globals.hh"
|
|
|
|
constexpr G4int kIAEA_MaxSources = 30; // MAX_NUM_SOURCES
|
|
|
|
class IAEASourceIdRegistry {
|
|
|
|
public:
|
|
|
|
static IAEASourceIdRegistry& Instance() {
|
|
static IAEASourceIdRegistry inst;
|
|
return inst;
|
|
}
|
|
|
|
// Reserve the next free ID (lowest or highest; your choice)
|
|
G4int ReserveNextLowest() {
|
|
G4AutoLock lock(&fMutex);
|
|
for (G4int ii = 0; ii < kIAEA_MaxSources; ii++) {
|
|
if (!fUsed.test(ii)) {
|
|
fUsed.set(ii);
|
|
return ii;
|
|
}
|
|
}
|
|
return -1; // none free
|
|
}
|
|
|
|
// Reserve a specific ID (returns true if we could mark it)
|
|
bool ReserveExact(G4int id) {
|
|
if (id < 0 || id >= kIAEA_MaxSources) return false;
|
|
G4AutoLock lock(&fMutex);
|
|
if (fUsed.test(id)) return false;
|
|
fUsed.set(id);
|
|
return true;
|
|
}
|
|
|
|
void Release(G4int id) {
|
|
if (id < 0 || id >= kIAEA_MaxSources) return;
|
|
G4AutoLock lock(&fMutex);
|
|
fUsed.reset(id);
|
|
}
|
|
|
|
|
|
private:
|
|
|
|
IAEASourceIdRegistry() = default;
|
|
IAEASourceIdRegistry(const IAEASourceIdRegistry&) = delete;
|
|
IAEASourceIdRegistry& operator=(const IAEASourceIdRegistry&) = delete;
|
|
|
|
std::bitset<kIAEA_MaxSources> fUsed;
|
|
G4Mutex fMutex = G4MUTEX_INITIALIZER;
|
|
};
|
|
|
|
#endif
|