langviz/Node.cc

   1 /******************************************************************************
   2  * Copyright (c) 2000-2016 Ericsson Telecom AB
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *   Balasko, Jeno
  10  *   Forstner, Matyas
  11  *
  12  ******************************************************************************/
  13 #include "Node.hh"
  14 #include "error.h"
  15 #include <stdio.h>
  16
  17 // =================================
  18 // ===== Node
  19 // =================================
  20
  21 int Node::counter=0;
  22 #ifdef MEMORY_DEBUG
  23 static Node *list_head = 0, *list_tail = 0;
  24 #endif
  25
  26 Node::Node()
  27 {
  28 #ifdef MEMORY_DEBUG
  29   prev_node = list_tail;
  30   next_node = 0;
  31   if (list_tail) list_tail->next_node = this;
  32   else list_head = this;
  33   list_tail = this;
  34 #endif
  35   counter++;
  36 }
  37
  38 Node::Node(const Node& p)
  39 {
  40 #ifdef MEMORY_DEBUG
  41   prev_node = list_tail;
  42   next_node = 0;
  43   if (list_tail) list_tail->next_node = this;
  44   else list_head = this;
  45   list_tail = this;
  46 #endif
  47   counter++;
  48 }
  49
  50 Node::~Node()
  51 {
  52   counter--;
  53 #ifdef MEMORY_DEBUG
  54   if (prev_node) prev_node->next_node = next_node;
  55   else list_head = next_node;
  56   if (next_node) next_node->prev_node = prev_node;
  57   else list_tail = prev_node;
  58 #endif
  59 }
  60
  61 void Node::chk_counter()
  62 {
  63   DEBUG(1, "Node::counter is %d", counter);
  64   if(counter)
  65     WARNING("%d nodes were not deleted."
  66             " Please send a bug report including"
  67             " the current input file(s).", counter);
  68 #ifdef MEMORY_DEBUG
  69   for(Node *iter = list_head; iter; iter = iter->next_node) {
  70     fprintf(stderr, "Undeleted node address: %p.\n", iter);
  71   }
  72   list_head = 0;
  73   list_tail = 0;
  74 #endif
  75 }
  76