Gabriele Cosmo
105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4BlockingList.hh,v 1.2 2003/11/02 14:01:21 gcosmo Exp $
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// GEANT4 tag $Name: geant4-06-00-patch-01 $
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//
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// class G4BlockingList
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//
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// Class description:
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//
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// A utility class responsible for (efficiently) maintaining a List
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// of blocked volume numbers, with rapid `reset' operations.
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//
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// Notes:
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//
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// Implemented via a ValVector of ints: a tag value is used to set
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// the indices of blocked volumes. On reset the current tag value is
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// increased, so that the ValVector must only be zeroed when the
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// numerical range of the tag is used.
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// History:
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//
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// 24.7.96 P.Kent Separated from G4Navigator
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// --------------------------------------------------------------------
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#ifndef G4BLOCKINGLIST_HH
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#define G4BLOCKINGLIST_HH
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#include "G4Types.hh"
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#include <vector>
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const G4int kBlockingListMaxDefault = 500; // Block up to 511 daughters
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// initially
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const G4int kBlockingListStride = 128;
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const G4int kBlockTagNoMax = 2147483647; // 2^31-1 maximum tag no may reach
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class G4BlockingList
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{
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public: // with description
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G4BlockingList(G4int maxDefault=kBlockingListMaxDefault,
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G4int stride=kBlockingListStride);
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// Create empty blocking List of default size and `stride' resize count.
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~G4BlockingList();
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// Destructor. No operations.
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void Reset();
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// Efficiently `Reset' the blocking List, so that no volumes
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// are blocked [Advance tag number and only fully clear List
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// if tag max reached]
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void FullyReset();
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// Clear the blocking List and reset tag value [slow].
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void Enlarge(const G4int nv);
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// Enlarges blocking List if current size < nv, in units of stride.
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// Clears the new part of the List.
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G4int Length() const;
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// Returns the current length of the List. Note a length of 16
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// means volumes of indices between 0 & 15 inclusive may be blocked.
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void BlockVolume(const G4int v);
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// Block the volume number v.
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// Requires: 0<=v<Length().
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G4bool IsBlocked(const G4int v) const;
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// Return true if the volume number v is blocked, else false.
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// Requires: 0<=v<Length().
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private:
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G4int fBlockTagNo, fStride;
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// Current blocked volume tag number.
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std::vector<G4int> fBlockingList;
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// Blocked volumes: Elements with indices
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// corresponding to blocked volume set to fBlockTagNo.
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};
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#include "G4BlockingList.icc"
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#endif
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