internalNode.cpp

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/****************************************************************************
 *   This file is part of the aGrUM/pyAgrum library.                        *
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 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
 *                                                                          *
 *   The aGrUM/pyAgrum library is free software; you can redistribute it    *
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 *   SPDX-FileCopyrightText: Copyright 2005-2026                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   Contact  : info_at_agrum_dot_org                                       *
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#include <agrum/base/multidim/utils/FunctionGraphUtilities/internalNode.h>
 
#define ALLOCATE(x)      SmallObjectAllocator::instance().allocate(x)
#define DEALLOCATE(x, y) SmallObjectAllocator::instance().deallocate(x, y)
 
namespace gum {
 
  // ============================================================================
  // Constructors
  // ============================================================================
  InternalNode::InternalNode() {
    GUM_CONSTRUCTOR(InternalNode);
    _nodeVar_ = nullptr;
  }
 
  InternalNode::InternalNode(const DiscreteVariable* v) {
    GUM_CONSTRUCTOR(InternalNode);
    _setNodeVar_(v);
  }
 
  InternalNode::InternalNode(const DiscreteVariable* v, NodeId* sons) {
    GUM_CONSTRUCTOR(InternalNode);
    _nodeVar_  = v;
    _nodeSons_ = sons;
  }
 
  // ============================================================================
  // Destructors
  // ============================================================================
  InternalNode::~InternalNode() {
    GUM_DESTRUCTOR(InternalNode);
    if (_nodeVar_ != nullptr) deallocateNodeSons(_nodeVar_, _nodeSons_);
  }
 
  // ============================================================================
  // Allocates a table of nodeid of the size given in parameter
  // ============================================================================
  NodeId* InternalNode::allocateNodeSons(const DiscreteVariable* v) {
    NodeId* sons = static_cast< NodeId* >(ALLOCATE(sizeof(NodeId) * v->domainSize()));
    for (gum::Idx i = 0; i < v->domainSize(); ++i)
      sons[i] = 0;
    return sons;
  }
 
  // ============================================================================
  // Deallocates a NodeSons table
  // ============================================================================
  void InternalNode::deallocateNodeSons(const DiscreteVariable* v, NodeId* s) {
    DEALLOCATE(s, sizeof(NodeId) * v->domainSize());
  }
 
  // ============================================================================
  // Node handlers
  // ============================================================================
  void InternalNode::setNode(const DiscreteVariable* v, NodeId* sons) {
    if (_nodeVar_ != nullptr) deallocateNodeSons(_nodeVar_, _nodeSons_);
    _nodeVar_  = v;
    _nodeSons_ = sons;
  }
 
  // ============================================================================
  // Var handlers
  // ============================================================================
  void InternalNode::setNodeVar(const DiscreteVariable* v) {
    if (_nodeVar_ != nullptr) deallocateNodeSons(_nodeVar_, _nodeSons_);
    _setNodeVar_(v);
  }
 
  void InternalNode::_setNodeVar_(const DiscreteVariable* v) {
    _nodeVar_  = v;
    _nodeSons_ = allocateNodeSons(v);
  }
 
  // ============================================================================
  // Parent handlers
  // ============================================================================
  void InternalNode::addParent(NodeId parent, Idx modality) {
    _nodeParents_.addLink(Parent(parent, modality));
  }
 
  void InternalNode::removeParent(NodeId parent, Idx modality) {
    _nodeParents_.searchAndRemoveLink(Parent(parent, modality));
  }
 
}   // namespace gum
 
#ifdef GUM_NO_INLINE
#  include <agrum/base/multidim/utils/FunctionGraphUtilities/internalNode_inl.h>
#endif /* GUM_NO_INLINE */