Gabriele Cosmo
101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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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 statement,
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// and all its terms.
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//
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// $Id: G4BlockingList.hh,v 1.2.2.1 1999/12/07 20:48:38 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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//
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// class G4BlockingList
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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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// Member functions:
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//
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// G4BlockingList(G4int maxDefault=511,G4int stride=512)
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//
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// Create empty blocking List of default size and `stride' resize
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// count.
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//
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// ~G4BlockingList()
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//
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// Reset()
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//
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// Efficiently `Reset' the blocking List, so that no volumes
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// are blocked
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// [Advance tag no and only fully clear List if tag max reached]
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//
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// FullyReset()
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//
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// Clear the blocking List and reset tag value [slow]
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//
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// Enlarge(G4int nv)
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//
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// Enlarges blocking List is current size < nv, in units of stride
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// Clears the new part of the List
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//
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// G4int Length()
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//
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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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//
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// void BlockVolume(G4int v)
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//
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// Block the volume number v. Requires: 0<=v<Length()
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//
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// G4bool IsBlocked(G4int v)
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//
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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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//
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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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// increases, 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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//
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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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#ifndef G4BLOCKINGLIST_HH
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#define G4BLOCKINGLIST_HH
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#include "globals.hh"
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#include "g4rw/tvvector.h"
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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:
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G4BlockingList(G4int maxDefault=kBlockingListMaxDefault,
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G4int stride=kBlockingListStride);
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~G4BlockingList();
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void Reset();
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void FullyReset();
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void Enlarge(const G4int nv);
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G4int Length() const;
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void BlockVolume(const G4int v);
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G4bool IsBlocked(const G4int v) const;
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private:
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// Current blocked volume tag no.
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G4int fBlockTagNo,fStride;
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// Blocked volumes: Elements with indices
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// corresponding to blocked volume set to fBlockTagNo
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G4RWTValVector<G4int> fBlockingList;
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};
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#include "G4BlockingList.icc"
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#endif
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