Line data    Source code

       1              : /****************************************************************************/
       2              : // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
       3              : // Copyright (C) 2001-2024 German Aerospace Center (DLR) and others.
       4              : // This program and the accompanying materials are made available under the
       5              : // terms of the Eclipse Public License 2.0 which is available at
       6              : // https://www.eclipse.org/legal/epl-2.0/
       7              : // This Source Code may also be made available under the following Secondary
       8              : // Licenses when the conditions for such availability set forth in the Eclipse
       9              : // Public License 2.0 are satisfied: GNU General Public License, version 2
      10              : // or later which is available at
      11              : // https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
      12              : // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
      13              : /****************************************************************************/
      14              : /// @file    MSBitSetLogic.h
      15              : /// @author  Christian Roessel
      16              : /// @author  Daniel Krajzewicz
      17              : /// @author  Sascha Krieg
      18              : /// @author  Michael Behrisch
      19              : /// @date    Wed, 12 Dez 2001
      20              : ///
      21              : // Container for holding a right-of-way matrix
      22              : /****************************************************************************/
      23              : #pragma once
      24              : #include <config.h>
      25              : 
      26              : #include <bitset>
      27              : #include <vector>
      28              : #include "MSJunctionLogic.h"
      29              : #include "MSLogicJunction.h"
      30              : 
      31              : 
      32              : // ===========================================================================
      33              : // class definitions
      34              : // ===========================================================================
      35              : /**
      36              :  * @class MSBitSetLogic
      37              :  *
      38              :  * N is sum of the number of links of the junction's inLanes.
      39              :  */
      40              : template< int N >
      41              : class MSBitSetLogic : public MSJunctionLogic {
      42              : public:
      43              :     /** @brief Container that holds the right of way bitsets.
      44              :         Each link has its own
      45              :         bitset. The bits in the bitsets correspond to the links. To create
      46              :         a bitset for a particular link, set the bits to true that correspond
      47              :         to links that have the right of way. All others set to false,
      48              :         including the link's "own" link-bit. */
      49              :     typedef std::vector< std::bitset< N > > Logic;
      50              : 
      51              :     /** @brief Container holding the information which internal lanes prohibt which links
      52              :         Build the same way as Logic */
      53              :     typedef std::vector< std::bitset< N > > Foes;
      54              : 
      55              : 
      56              : public:
      57              :     /// Use this constructor only.
      58       318910 :     MSBitSetLogic(int nLinks, const Logic& logic, const Foes& foes,
      59              :                   std::bitset<SUMO_MAX_CONNECTIONS> conts)
      60       318910 :         : MSJunctionLogic(nLinks), myLogic(logic),
      61       318910 :           myInternalLinksFoes(foes), myConts(conts) {}
      62              : 
      63              :     /// @brief Returns the response for the given link
      64      2986035 :     const MSLogicJunction::LinkBits& getResponseFor(int linkIndex) const {
      65      2986035 :         return myLogic[linkIndex];
      66              :     }
      67              : 
      68              :     /// @brief Returns the foes for the given link
      69      1619412 :     const MSLogicJunction::LinkBits& getFoesFor(int linkIndex) const {
      70      1619412 :         return myInternalLinksFoes[linkIndex];
      71              :     }
      72              : 
      73      1612130 :     bool getIsCont(int linkIndex) const {
      74      1612130 :         return myConts.test(linkIndex);
      75              :     }
      76              : 
      77       318070 :     bool hasFoes() const {
      78       777234 :         for (const auto& i : myLogic) {
      79       597988 :             if (i.any()) {
      80              :                 return true;
      81              :             }
      82              :         }
      83              :         return false;
      84              :     }
      85              : 
      86              : private:
      87              :     /// junctions logic based on std::bitset
      88              :     const Logic myLogic;
      89              : 
      90              :     /// internal lanes logic
      91              :     const Foes myInternalLinksFoes;
      92              : 
      93              :     const std::bitset<SUMO_MAX_CONNECTIONS> myConts;
      94              : 
      95              : private:
      96              :     /// @brief Invalidated copy constructor.
      97              :     MSBitSetLogic(const MSBitSetLogic&) = delete;
      98              : 
      99              :     /// @brief Invalidated assignment operator.
     100              :     MSBitSetLogic& operator=(const MSBitSetLogic&) = delete;
     101              : 
     102              : };
     103              : 
     104              : 
     105              : /** To make things easier we use a fixed size. SUMO_MAX_CONNECTIONS will hopefully be sufficient even for
     106              :     large asian junctions.
     107              :     So, here comes the type which should be used by the netbuilder. */
     108              : typedef MSBitSetLogic<SUMO_MAX_CONNECTIONS> MSBitsetLogic;