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138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/****************************************************************************
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*
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* Copyright (C) 1991 Kendall Bennett.
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* All rights reserved.
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*
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* Filename: $RCSfile$
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* Version: $Revision$
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*
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* Language: ANSI C
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* Environment: any
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*
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* Description: Header file for doubly linked list routines.
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*
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* $Id$
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*
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* Revision History:
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* -----------------
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*
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* $Log$
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* Revision 1.1 1999/04/21 23:11:20 ssb
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* moved apache, com and hyperwave into ext/
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*
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* Revision 1.1.1.1 1999/04/07 21:03:20 zeev
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* PHP 4.0
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*
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* Revision 1.1.1.1 1999/03/17 04:29:11 andi
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* PHP4
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*
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* Revision 1.1.1.1 1998/12/21 07:56:22 andi
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* Trying to start the zend CVS tree
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*
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* Revision 1.2 1998/08/14 15:51:12 shane
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* Some work on getting hyperwave to work on windows. hg_comm needs a lot of work.
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*
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* Mainly, signals, fnctl, bzero, bcopy, etc are not portable functions. Most of this
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* will have to be rewriten for windows.
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*
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* Revision 1.1 1998/08/12 09:29:16 steinm
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* First version of Hyperwave module.
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*
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* Revision 1.5 91/12/31 19:40:54 kjb
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*
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* Modified include files directories.
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*
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* Revision 1.4 91/09/27 03:10:41 kjb
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* Added compatibility with C++.
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*
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* Revision 1.3 91/09/26 10:07:16 kjb
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* Took out extern references
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*
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* Revision 1.2 91/09/01 19:37:20 ROOT_DOS
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* Changed DLST_TAIL macro so that it returns a pointer to the REAL last
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* node of the list, not the dummy last node (l->z).
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*
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* Revision 1.1 91/09/01 18:38:23 ROOT_DOS
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* Initial revision
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*
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****************************************************************************/
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#ifndef __DLIST_H
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#define __DLIST_H
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#ifndef __DEBUG_H
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/*#include "debug.h"*/
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#endif
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/*---------------------- Macros and type definitions ----------------------*/
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typedef struct PHP_DLST_BUCKET {
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struct PHP_DLST_BUCKET *next;
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struct PHP_DLST_BUCKET *prev;
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} PHP_DLST_BUCKET;
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/* necessary for AIX 4.2.x */
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#ifdef hz
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#undef hz
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#endif
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typedef struct {
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int count; /* Number of elements currently in list */
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PHP_DLST_BUCKET *head; /* Pointer to head element of list */
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PHP_DLST_BUCKET *z; /* Pointer to last node of list */
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PHP_DLST_BUCKET hz[2]; /* Space for head and z nodes */
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} DLIST;
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/* Return a pointer to the user space given the address of the header of
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* a node.
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*/
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#define PHP_DLST_USERSPACE(h) ((void*)((PHP_DLST_BUCKET*)(h) + 1))
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/* Return a pointer to the header of a node, given the address of the
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* user space.
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*/
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#define PHP_DLST_HEADER(n) ((PHP_DLST_BUCKET*)(n) - 1)
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/* Return a pointer to the user space of the list's head node. This user
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* space does not actually exist, but it is useful to be able to address
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* it to enable insertion at the start of the list.
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*/
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#define PHP_DLST_HEAD(l) PHP_DLST_USERSPACE((l)->head)
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/* Return a pointer to the user space of the last node in list. */
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#define PHP_DLST_TAIL(l) PHP_DLST_USERSPACE((l)->z->prev)
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/* Determine if a list is empty
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*/
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#define PHP_DLST_EMPTY(l) ((l)->count == 0)
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/*-------------------------- Function Prototypes --------------------------*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void *dlst_newnode(int size);
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void dlst_freenode(void *node);
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DLIST *dlst_init(void);
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void dlst_kill(DLIST *l,void (*freeNode)(void *node));
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void dlst_insertafter(DLIST *l,void *node,void *after);
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void *dlst_deletenext(DLIST *l,void *node);
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void *dlst_first(DLIST *l);
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void *dlst_last(DLIST *l);
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void *dlst_next(void *prev);
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void *dlst_prev(void *next);
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void dlst_mergesort(DLIST *l,int (*cmp_func)(void*,void*));
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#ifdef __cplusplus
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}
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#endif
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#endif
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