Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
branch: xdebug_2_1
Fetching contributors…

Cannot retrieve contributors at this time

193 lines (160 sloc) 3.843 kb
/* $Id: xdebug_llist.c,v 1.5 2007-01-02 16:02:37 derick Exp $ */
/* The contents of this file are subject to the Vulcan Logic Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.vl-srm.net/vlpl/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is vl-srm.net code.
*
* The Initial Developer of the Original Code is the Vulcan Logic
* Group. Portions created by Vulcan Logic Group are Copyright (C)
* 2000, 2001, 2002 Vulcan Logic Group. All Rights Reserved.
*
* Author(s): Sterling Hughes <sterling@php.net>
*/
#include <stdlib.h>
#include <string.h>
#include "xdebug_llist.h"
xdebug_llist *xdebug_llist_alloc(xdebug_llist_dtor dtor)
{
xdebug_llist *l;
l = malloc(sizeof(xdebug_llist));
xdebug_llist_init(l, dtor);
return l;
}
void xdebug_llist_init(xdebug_llist *l, xdebug_llist_dtor dtor)
{
l->size = 0;
l->dtor = dtor;
l->head = NULL;
l->tail = NULL;
}
int xdebug_llist_insert_next(xdebug_llist *l, xdebug_llist_element *e, const void *p)
{
xdebug_llist_element *ne;
if (!e) {
e = XDEBUG_LLIST_TAIL(l);
}
ne = (xdebug_llist_element *) malloc(sizeof(xdebug_llist_element));
ne->ptr = (void *) p;
if (l->size == 0) {
l->head = ne;
l->head->prev = NULL;
l->head->next = NULL;
l->tail = ne;
} else {
ne->next = e->next;
ne->prev = e;
if (e->next) {
e->next->prev = ne;
} else {
l->tail = ne;
}
e->next = ne;
}
++l->size;
return 1;
}
int xdebug_llist_insert_prev(xdebug_llist *l, xdebug_llist_element *e, const void *p)
{
xdebug_llist_element *ne;
if (!e) {
e = XDEBUG_LLIST_HEAD(l);
}
ne = (xdebug_llist_element *) malloc(sizeof(xdebug_llist_element));
ne->ptr = (void *) p;
if (l->size == 0) {
l->head = ne;
l->head->prev = NULL;
l->head->next = NULL;
l->tail = ne;
} else {
ne->next = e;
ne->prev = e->prev;
if (e->prev)
e->prev->next = ne;
else
l->head = ne;
e->prev = ne;
}
++l->size;
return 0;
}
int xdebug_llist_remove(xdebug_llist *l, xdebug_llist_element *e, void *user)
{
if (e == NULL || l->size == 0)
return 0;
if (e == l->head) {
l->head = e->next;
if (l->head == NULL)
l->tail = NULL;
else
e->next->prev = NULL;
} else {
e->prev->next = e->next;
if (!e->next)
l->tail = e->prev;
else
e->next->prev = e->prev;
}
if (l->dtor) {
l->dtor(user, e->ptr);
}
free(e);
--l->size;
return 0;
}
int xdebug_llist_remove_next(xdebug_llist *l, xdebug_llist_element *e, void *user)
{
return xdebug_llist_remove(l, e->next, user);
}
int xdebug_llist_remove_prev(xdebug_llist *l, xdebug_llist_element *e, void *user)
{
return xdebug_llist_remove(l, e->prev, user);
}
xdebug_llist_element *xdebug_llist_jump(xdebug_llist *l, int where, int pos)
{
xdebug_llist_element *e=NULL;
int i;
if (where == LIST_HEAD) {
e = XDEBUG_LLIST_HEAD(l);
for (i = 0; i < pos; ++i) {
e = XDEBUG_LLIST_NEXT(e);
}
}
else if (where == LIST_TAIL) {
e = XDEBUG_LLIST_TAIL(l);
for (i = 0; i < pos; ++i) {
e = XDEBUG_LLIST_PREV(e);
}
}
return e;
}
size_t xdebug_llist_count(xdebug_llist *l)
{
return l->size;
}
void xdebug_llist_empty(xdebug_llist *l, void *user)
{
while (xdebug_llist_count(l) > 0) {
xdebug_llist_remove(l, XDEBUG_LLIST_TAIL(l), user);
}
}
void xdebug_llist_destroy(xdebug_llist *l, void *user)
{
xdebug_llist_empty(l, user);
free (l);
}
/*
* Local Variables:
* c-basic-offset: 4
* tab-width: 4
* End:
* vim600: fdm=marker
* vim: noet sw=4 ts=4
*/
Jump to Line
Something went wrong with that request. Please try again.