mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-26 22:31:05 +00:00
115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
/*
|
|
llist.h
|
|
|
|
Linked list functions
|
|
|
|
Copyright (C) 2003 Brian Koropoff
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
|
|
#ifndef __QF_llist_h
|
|
#define __QF_llist_h
|
|
|
|
#include "QF/qtypes.h"
|
|
|
|
/** \defgroup llist Linked lists
|
|
\ingroup utils
|
|
*/
|
|
//@{
|
|
|
|
typedef struct llist_node_s {
|
|
struct llist_s *parent; ///< The list owning this node.
|
|
struct llist_node_s *prev; ///< The previous node in the list, or null.
|
|
struct llist_node_s *next; ///< The flowing node in the list, or null.
|
|
void *data; ///< The actual list item.
|
|
} llist_node_t;
|
|
|
|
typedef struct llist_s {
|
|
struct llist_node_s *start; ///< The first node in the list, or null.
|
|
struct llist_node_s *end; ///< The last node in the list, or null.
|
|
struct llist_node_s *iter;
|
|
/// Function called when deleting a list item.
|
|
/// \param element The item being deleted.
|
|
/// \param userdata Pointer to user data supplied to llist_new().
|
|
void (*freedata)(void *element, void *userdata);
|
|
qboolean (*cmpdata)(const void *element, const void *comparison,
|
|
void *userdata);
|
|
void *userdata;
|
|
} llist_t;
|
|
|
|
typedef qboolean (*llist_iterator_t)(void *element, llist_node_t *node);
|
|
|
|
#define LLIST_ICAST(x) (llist_iterator_t)(x)
|
|
#define LLIST_DATA(node, type) ((type *)((node)->data))
|
|
|
|
/** Create a new, empty, linked list.
|
|
|
|
\param freedata Function to call when deleting a list item.
|
|
\param cmpdata Function to call to compare two list items. It must
|
|
return true when the items are the same and false when
|
|
they differ.
|
|
\param userdata User data pointer. Set to whatever you want, it will be
|
|
passed to the \a freedata and \a cmpdata functions as
|
|
their final parameter.
|
|
\return Pointer to the list's control structure, which is to be
|
|
passed to the other functions accessing the list.
|
|
*/
|
|
llist_t *llist_new (void (*freedata)(void *element, void *userdata),
|
|
qboolean (*cmpdata)(const void *element,
|
|
const void *comparison,
|
|
void *userdata),
|
|
void *userdata);
|
|
|
|
/** Empty a linked list.
|
|
All of the items in the list will be deleted via the list's \a freedata
|
|
function and the list will become empty.
|
|
|
|
\param list Pointer to the list's control structure created by
|
|
llist_new(). May be null, in which case no operation is
|
|
performed.
|
|
*/
|
|
void llist_flush (llist_t *list);
|
|
|
|
/** Delete a linked list.
|
|
All of the items in the list will be deleted via the list's \a freedata
|
|
function and the list will be destroyed. Do not attempt to use the list
|
|
pointer after destroying the list.
|
|
|
|
\param list Pointer to the list's control structure created by
|
|
llist_new(). May be null, in which case no operation is
|
|
performed.
|
|
*/
|
|
void llist_delete (llist_t *list);
|
|
llist_node_t *llist_append (llist_t *list, void *element);
|
|
llist_node_t *llist_prefix (llist_t *list, void *element);
|
|
llist_node_t *llist_getnode (llist_t *list, void *element) __attribute__((pure));
|
|
llist_node_t *llist_insertafter (llist_node_t *ref, void *element);
|
|
llist_node_t *llist_insertbefore (llist_node_t *ref, void *element);
|
|
void *llist_remove (llist_node_t *ref);
|
|
unsigned int llist_size (llist_t *llist) __attribute__((pure));
|
|
void llist_iterate (llist_t *list, llist_iterator_t iterate);
|
|
void *llist_find (llist_t *list, void *comparison);
|
|
llist_node_t *llist_findnode (llist_t *list, void *comparison);
|
|
void *llist_createarray (llist_t *list, size_t esize);
|
|
|
|
//@}
|
|
|
|
#endif//__QF_llist_h
|