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/* NetworkManager -- Network link manager
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* (C) Copyright 2014 Red Hat, Inc.
*/
#ifndef __NM_C_LIST_H__
#define __NM_C_LIST_H__
#include "c-list/src/c-list.h"
/*****************************************************************************/
#define nm_c_list_contains_entry(list, what, member) \
({ \
typeof (what) _what = (what); \
\
_what && c_list_contains (list, &_what->member); \
})
/*****************************************************************************/
typedef struct {
CList lst;
void *data;
} NMCListElem;
static inline NMCListElem *
nm_c_list_elem_new_stale (void *data)
{
NMCListElem *elem;
elem = g_slice_new (NMCListElem);
elem->data = data;
return elem;
}
static inline gboolean
nm_c_list_elem_free_full (NMCListElem *elem, GDestroyNotify free_fcn)
{
if (!elem)
return FALSE;
c_list_unlink_stale (&elem->lst);
if (free_fcn)
free_fcn (elem->data);
g_slice_free (NMCListElem, elem);
return TRUE;
}
static inline gboolean
nm_c_list_elem_free (NMCListElem *elem)
{
return nm_c_list_elem_free_full (elem, NULL);
}
static inline void *
nm_c_list_elem_free_steal (NMCListElem *elem)
{
gpointer data;
if (!elem)
return NULL;
data = elem->data;
nm_c_list_elem_free_full (elem, NULL);
return data;
}
static inline void
nm_c_list_elem_free_all (CList *head, GDestroyNotify free_fcn)
{
NMCListElem *elem;
while ((elem = c_list_first_entry (head, NMCListElem, lst)))
nm_c_list_elem_free_full (elem, free_fcn);
}
/**
* nm_c_list_elem_find_first:
* @head: the @CList head of a list containing #NMCListElem elements.
* Note that the head is not itself part of the list.
* @needle: the needle pointer.
*
* Iterates the list and returns the first #NMCListElem with the matching @needle,
* using pointer equality.
*
* Returns: the found list element or %NULL if not found.
*/
static inline NMCListElem *
nm_c_list_elem_find_first (CList *head, gconstpointer needle)
{
NMCListElem *elem;
c_list_for_each_entry (elem, head, lst) {
if (elem->data == needle)
return elem;
}
return NULL;
}
/*****************************************************************************/
/**
* nm_c_list_move_before:
* @lst: the list element to which @elem will be prepended.
* @elem: the list element to move.
*
* This unlinks @elem from the current list and linkes it before
* @lst. This is like c_list_link_before(), except that @elem must
* be initialized and linked. Note that @elem may be linked in @lst
* or in another list. In both cases it gets moved.
*
* Returns: %TRUE if there were any changes. %FALSE if elem was already
* linked at the right place.
*/
static inline gboolean
nm_c_list_move_before (CList *lst, CList *elem)
{
nm_assert (lst);
nm_assert (elem);
if ( lst != elem
&& lst->prev != elem) {
c_list_unlink_stale (elem);
c_list_link_before (lst, elem);
return TRUE;
}
return FALSE;
}
#define nm_c_list_move_tail(lst, elem) nm_c_list_move_before (lst, elem)
/**
* nm_c_list_move_after:
* @lst: the list element to which @elem will be prepended.
* @elem: the list element to move.
*
* This unlinks @elem from the current list and linkes it after
* @lst. This is like c_list_link_after(), except that @elem must
* be initialized and linked. Note that @elem may be linked in @lst
* or in another list. In both cases it gets moved.
*
* Returns: %TRUE if there were any changes. %FALSE if elem was already
* linked at the right place.
*/
static inline gboolean
nm_c_list_move_after (CList *lst, CList *elem)
{
nm_assert (lst);
nm_assert (elem);
if ( lst != elem
&& lst->next != elem) {
c_list_unlink_stale (elem);
c_list_link_after (lst, elem);
return TRUE;
}
return FALSE;
}
#define nm_c_list_move_front(lst, elem) nm_c_list_move_after (lst, elem)
#define nm_c_list_free_all(lst, type, member, destroy_fcn) \
G_STMT_START { \
CList *const _lst = (lst); \
type *_elem; \
\
while ((_elem = c_list_first_entry (_lst, type, member))) { \
destroy_fcn (_elem); \
} \
} G_STMT_END
#endif /* __NM_C_LIST_H__ */
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