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// $Id$
#ifndef ACE_INTRUSIVE_LIST_CPP
#define ACE_INTRUSIVE_LIST_CPP
#include "ace/Intrusive_List.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#if !defined (__ACE_INLINE__)
#include "ace/Intrusive_List.inl"
#endif /* __ACE_INLINE__ */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
template <class T>
ACE_Intrusive_List<T>::ACE_Intrusive_List (void)
: head_ (0)
, tail_ (0)
{
}
template<class T>
ACE_Intrusive_List<T>::~ACE_Intrusive_List (void)
{
}
template<class T> void
ACE_Intrusive_List<T>::push_back (T *node)
{
if (this->tail_ == 0)
{
this->tail_ = node;
this->head_ = node;
node->next (0);
node->prev (0);
return;
}
this->tail_->next (node);
node->prev (this->tail_);
node->next (0);
this->tail_ = node;
}
template<class T> void
ACE_Intrusive_List<T>::push_front (T *node)
{
if (this->head_ == 0)
{
this->tail_ = node;
this->head_ = node;
node->next (0);
node->prev (0);
return;
}
this->head_->prev (node);
node->next (this->head_);
node->prev (0);
this->head_ = node;
}
template<class T> T *
ACE_Intrusive_List<T>::pop_front (void)
{
T *node = this->head_;
if (node == 0)
return 0;
this->remove_i (node);
return node;
}
template<class T> T *
ACE_Intrusive_List<T>::pop_back (void)
{
T *node = this->tail_;
if (node == 0)
return 0;
this->remove_i (node);
return node;
}
template<class T> void
ACE_Intrusive_List<T>::remove (T *node)
{
for (T *i = this->head_; i != 0; i = i->next ())
{
if (node == i)
{
this->remove_i (node);
return;
}
}
}
template<class T> void
ACE_Intrusive_List<T>::remove_i (T *node)
{
if (node->prev () != 0)
node->prev ()->next (node->next ());
else
this->head_ = node->next ();
if (node->next () != 0)
node->next ()->prev (node->prev ());
else
this->tail_ = node->prev ();
node->next (0);
node->prev (0);
}
#if 0
template<class T> void
ACE_Intrusive_List_Node<T>::check_invariants (void)
{
ACE_ASSERT ((this->next () == 0) || (this->next ()->prev () == this));
ACE_ASSERT ((this->prev () == 0) || (this->prev ()->next () == this));
}
template<class T> void
ACE_Intrusive_List<T>::check_invariants (void)
{
ACE_ASSERT ((this->tail_ == 0) || (this->tail_->next () == 0));
ACE_ASSERT ((this->head_ == 0) || (this->head_->prev () == 0));
ACE_ASSERT (!((this->head_ == 0) ^ (this->tail_ == 0)));
int found_tail = 0;
for (T *i = this->head_; i != 0; i = i->next ())
{
if (i == this->tail_)
found_tail = 1;
i->check_invariants ();
}
ACE_ASSERT (this->tail_ == 0 || found_tail == 1);
int found_head = 0;
for (T *j = this->tail_; j != 0; j = j->prev ())
{
if (j == this->head_)
found_head = 1;
j->check_invariants ();
}
ACE_ASSERT (this->head_ == 0 || found_head == 1);
}
#endif /* 0 */
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_INTRUSIVE_LIST_CPP */
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