/* * nixvec.h * Copyright (C) 2000 by the University of Southern California * $Id: nixvec.h,v 1.3 2005/08/25 18:58:10 johnh Exp $ * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * * The copyright of this module includes the following * linking-with-specific-other-licenses addition: * * In addition, as a special exception, the copyright holders of * this module give you permission to combine (via static or * dynamic linking) this module with free software programs or * libraries that are released under the GNU LGPL and with code * included in the standard release of ns-2 under the Apache 2.0 * license or under otherwise-compatible licenses with advertising * requirements (or modified versions of such code, with unchanged * license).  You may copy and distribute such a system following the * terms of the GNU GPL for this module and the licenses of the * other code concerned, provided that you include the source code of * that other code when and as the GNU GPL requires distribution of * source code. * * Note that people who make modified versions of this module * are not obligated to grant this special exception for their * modified versions; it is their choice whether to do so.  The GNU * General Public License gives permission to release a modified * version without this exception; this exception also makes it * possible to release a modified version which carries forward this * exception. * *//* * Support for NixVector routing * contributed to ns from  * George F. Riley, Georgia Tech, Spring 2000 */#ifndef __NIXVEC_H__#define __NIXVEC_H__#include <utility>  // for pair#ifdef WIN32//#include <pair.h>   // for MSVC 6.0 that doens't have a proper <utility>#endif /* WIN32 */// Define a type for the neighbor indextypedef unsigned long Nix_t;typedef unsigned long Nixl_t; // Length of a NVconst   Nix_t NIX_NONE = 0xffffffff;    // If not a neighborconst   Nixl_t NIX_BPW = 32;            // Bits per long wordtypedef pair<Nix_t,  Nixl_t> NixPair_t; // Index, bits neededtypedef pair<Nix_t*, Nixl_t> NixpPair_t;// NV Pointer, length// The variable length neighbor index routing vectorclass NixVec {  public :    NixVec () : m_pNV(0), m_used(0), m_alth(0) { };    NixVec(NixVec*);              // Construct from existing    ~NixVec();                    // Destructor    void   Add(NixPair_t);        // Add bits to the nix vector    Nix_t  Extract(Nixl_t);       // Extract the specified number of bits    Nix_t  Extract(Nixl_t, Nixl_t*); // Extract using external "used"    NixpPair_t Get(void);         // Get the entire nv    void   Reset();               // Reset used to 0    Nixl_t Lth();                 // Get length in bits of allocated    void   DBDump();              // Debug..print it out    Nixl_t ALth() { return m_alth;} // Debug...how many bits actually used    static Nixl_t GetBitl(Nix_t); // Find out how many bits needed  private :    Nix_t* m_pNV;  // Points to variable lth nixvector (or actual if l == 32)  //    Nixl_t m_lth;  // Length of this nixvector (computed from m_alth)    Nixl_t m_used; // Used portion of this nixvector    Nixl_t m_alth; // Actual length (largest used)};#endif