[831] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4BlockingList.hh,v 1.4 2006/06/29 18:30:41 gunter Exp $ |
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[850] | 28 | // GEANT4 tag $Name: HEAD $ |
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[831] | 29 | // |
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| 30 | // class G4BlockingList |
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| 31 | // |
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| 32 | // Class description: |
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| 33 | // |
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| 34 | // A utility class responsible for (efficiently) maintaining a List |
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| 35 | // of blocked volume numbers, with rapid `reset' operations. |
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| 36 | // |
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| 37 | // Notes: |
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| 38 | // |
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| 39 | // Implemented via a ValVector of ints: a tag value is used to set |
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| 40 | // the indices of blocked volumes. On reset the current tag value is |
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| 41 | // increased, so that the ValVector must only be zeroed when the |
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| 42 | // numerical range of the tag is used. |
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| 43 | |
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| 44 | // History: |
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| 45 | // |
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| 46 | // 24.7.96 P.Kent Separated from G4Navigator |
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| 47 | // -------------------------------------------------------------------- |
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| 48 | #ifndef G4BLOCKINGLIST_HH |
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| 49 | #define G4BLOCKINGLIST_HH |
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| 50 | |
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| 51 | #include "G4Types.hh" |
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| 52 | #include <vector> |
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| 53 | |
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| 54 | const G4int kBlockingListMaxDefault = 500; // Block up to 511 daughters |
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| 55 | // initially |
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| 56 | const G4int kBlockingListStride = 128; |
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| 57 | const G4int kBlockTagNoMax = 2147483647; // 2^31-1 maximum tag no may reach |
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| 58 | |
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| 59 | class G4BlockingList |
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| 60 | { |
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| 61 | public: // with description |
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| 62 | |
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| 63 | G4BlockingList(G4int maxDefault=kBlockingListMaxDefault, |
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| 64 | G4int stride=kBlockingListStride); |
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| 65 | // Create empty blocking List of default size and `stride' resize count. |
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| 66 | |
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| 67 | ~G4BlockingList(); |
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| 68 | // Destructor. No operations. |
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| 69 | |
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| 70 | void Reset(); |
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| 71 | // Efficiently `Reset' the blocking List, so that no volumes |
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| 72 | // are blocked [Advance tag number and only fully clear List |
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| 73 | // if tag max reached] |
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| 74 | |
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| 75 | void FullyReset(); |
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| 76 | // Clear the blocking List and reset tag value [slow]. |
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| 77 | |
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| 78 | void Enlarge(const G4int nv); |
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| 79 | // Enlarges blocking List if current size < nv, in units of stride. |
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| 80 | // Clears the new part of the List. |
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| 81 | |
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| 82 | G4int Length() const; |
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| 83 | // Returns the current length of the List. Note a length of 16 |
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| 84 | // means volumes of indices between 0 & 15 inclusive may be blocked. |
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| 85 | |
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| 86 | void BlockVolume(const G4int v); |
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| 87 | // Block the volume number v. |
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| 88 | // Requires: 0<=v<Length(). |
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| 89 | |
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| 90 | G4bool IsBlocked(const G4int v) const; |
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| 91 | // Return true if the volume number v is blocked, else false. |
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| 92 | // Requires: 0 <= v < Length(). |
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| 93 | |
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| 94 | private: |
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| 95 | |
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| 96 | G4int fBlockTagNo, fStride; |
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| 97 | // Current blocked volume tag number. |
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| 98 | |
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| 99 | std::vector<G4int> fBlockingList; |
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| 100 | // Blocked volumes: Elements with indices |
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| 101 | // corresponding to blocked volume set to fBlockTagNo. |
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| 102 | |
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| 103 | }; |
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| 104 | |
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| 105 | #include "G4BlockingList.icc" |
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| 106 | |
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| 107 | #endif |
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