test-suite/test_tools.cc

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 // XXX: This file is made of large pieces of src/tools.cc
  10 // with only a few minor modifications. TODO: redesign or delete.
  11
  12 #include "squid.h"
  13 #include "dlink.h"
  14
  15 void
  16 dlinkAdd(void *data, dlink_node * m, dlink_list * list)
  17 {
  18     m->data = data;
  19     m->prev = nullptr;
  20     m->next = list->head;
  21
  22     if (list->head)
  23         list->head->prev = m;
  24
  25     list->head = m;
  26
  27     if (list->tail == nullptr)
  28         list->tail = m;
  29 }
  30
  31 void
  32 dlinkAddAfter(void *data, dlink_node * m, dlink_node * n, dlink_list * list)
  33 {
  34     m->data = data;
  35     m->prev = n;
  36     m->next = n->next;
  37
  38     if (n->next)
  39         n->next->prev = m;
  40     else {
  41         assert(list->tail == n);
  42         list->tail = m;
  43     }
  44
  45     n->next = m;
  46 }
  47
  48 void
  49 dlinkAddTail(void *data, dlink_node * m, dlink_list * list)
  50 {
  51     m->data = data;
  52     m->next = nullptr;
  53     m->prev = list->tail;
  54
  55     if (list->tail)
  56         list->tail->next = m;
  57
  58     list->tail = m;
  59
  60     if (list->head == nullptr)
  61         list->head = m;
  62 }
  63
  64 void
  65 dlinkDelete(dlink_node * m, dlink_list * list)
  66 {
  67     if (m->next)
  68         m->next->prev = m->prev;
  69
  70     if (m->prev)
  71         m->prev->next = m->next;
  72
  73     if (m == list->head)
  74         list->head = m->next;
  75
  76     if (m == list->tail)
  77         list->tail = m->prev;
  78
  79     m->next = m->prev = nullptr;
  80 }
  81