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Sources/libimobiledevice/dependencies/libplist/libcnary/COPYING
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GNU LESSER GENERAL PUBLIC LICENSE
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Version 2.1, February 1999
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Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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|
||||
14. If you wish to incorporate parts of the Library into other free
|
||||
programs whose distribution conditions are incompatible with these,
|
||||
write to the author to ask for permission. For software which is
|
||||
copyrighted by the Free Software Foundation, write to the Free
|
||||
Software Foundation; we sometimes make exceptions for this. Our
|
||||
decision will be guided by the two goals of preserving the free status
|
||||
of all derivatives of our free software and of promoting the sharing
|
||||
and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
|
||||
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
|
||||
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
|
||||
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
|
||||
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
|
||||
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
|
||||
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
||||
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
|
||||
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
|
||||
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
|
||||
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
|
||||
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
|
||||
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
|
||||
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
|
||||
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||
DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Libraries
|
||||
|
||||
If you develop a new library, and you want it to be of the greatest
|
||||
possible use to the public, we recommend making it free software that
|
||||
everyone can redistribute and change. You can do so by permitting
|
||||
redistribution under these terms (or, alternatively, under the terms of the
|
||||
ordinary General Public License).
|
||||
|
||||
To apply these terms, attach the following notices to the library. It is
|
||||
safest to attach them to the start of each source file to most effectively
|
||||
convey the exclusion of warranty; and each file should have at least the
|
||||
"copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the library's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
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 2.1 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
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the library, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1990
|
||||
Ty Coon, President of Vice
|
||||
|
||||
That's all there is to it!
|
||||
@@ -0,0 +1,12 @@
|
||||
AM_CFLAGS = $(GLOBAL_CFLAGS) -I$(top_srcdir)/libcnary/include
|
||||
AM_LDFLAGS =
|
||||
|
||||
noinst_LTLIBRARIES = libcnary.la
|
||||
libcnary_la_LIBADD =
|
||||
libcnary_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined
|
||||
libcnary_la_SOURCES = \
|
||||
node.c \
|
||||
node_list.c \
|
||||
include/node.h \
|
||||
include/node_list.h \
|
||||
include/object.h
|
||||
@@ -0,0 +1,5 @@
|
||||
Project Name:
|
||||
libcnary
|
||||
|
||||
Project Description:
|
||||
A small N-ary (Tree) library written in C.
|
||||
@@ -0,0 +1,46 @@
|
||||
/*
|
||||
* cnary.c
|
||||
*
|
||||
* Created on: Mar 9, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "node.h"
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
puts("Creating root node");
|
||||
node_t* root = node_create(NULL, NULL);
|
||||
|
||||
puts("Creating child 1 node");
|
||||
node_t* one = node_create(root, NULL);
|
||||
puts("Creating child 2 node");
|
||||
node_t* two = node_create(root, NULL);
|
||||
|
||||
puts("Creating child 3 node");
|
||||
node_t* three = node_create(one, NULL);
|
||||
|
||||
puts("Debugging root node");
|
||||
node_debug(root);
|
||||
|
||||
puts("Destroying root node");
|
||||
node_destroy(root);
|
||||
return 0;
|
||||
}
|
||||
@@ -0,0 +1,65 @@
|
||||
/*
|
||||
* node.h
|
||||
*
|
||||
* Created on: Mar 7, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
|
||||
#ifndef NODE_H_
|
||||
#define NODE_H_
|
||||
|
||||
#include "object.h"
|
||||
|
||||
#define NODE_TYPE 1;
|
||||
|
||||
struct node_list_t;
|
||||
|
||||
// This class implements the abstract iterator class
|
||||
typedef struct node_t {
|
||||
// Super class
|
||||
struct node_t* next;
|
||||
struct node_t* prev;
|
||||
unsigned int count;
|
||||
|
||||
// Local Members
|
||||
void *data;
|
||||
struct node_t* parent;
|
||||
struct node_list_t* children;
|
||||
} node_t;
|
||||
|
||||
void node_destroy(struct node_t* node);
|
||||
struct node_t* node_create(struct node_t* parent, void* data);
|
||||
|
||||
int node_attach(struct node_t* parent, struct node_t* child);
|
||||
int node_detach(struct node_t* parent, struct node_t* child);
|
||||
int node_insert(struct node_t* parent, unsigned int index, struct node_t* child);
|
||||
|
||||
unsigned int node_n_children(struct node_t* node);
|
||||
node_t* node_nth_child(struct node_t* node, unsigned int n);
|
||||
node_t* node_first_child(struct node_t* node);
|
||||
node_t* node_prev_sibling(struct node_t* node);
|
||||
node_t* node_next_sibling(struct node_t* node);
|
||||
int node_child_position(struct node_t* parent, node_t* child);
|
||||
|
||||
typedef void* (*copy_func_t)(const void *src);
|
||||
node_t* node_copy_deep(node_t* node, copy_func_t copy_func);
|
||||
|
||||
void node_debug(struct node_t* node);
|
||||
|
||||
#endif /* NODE_H_ */
|
||||
@@ -0,0 +1,47 @@
|
||||
/*
|
||||
* node_list.h
|
||||
*
|
||||
* Created on: Mar 8, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
|
||||
#ifndef NODE_LIST_H_
|
||||
#define NODE_LIST_H_
|
||||
|
||||
struct node_t;
|
||||
|
||||
// This class implements the list_t abstract class
|
||||
typedef struct node_list_t {
|
||||
// list_t members
|
||||
struct node_t* begin;
|
||||
struct node_t* end;
|
||||
|
||||
// node_list_t members
|
||||
unsigned int count;
|
||||
|
||||
} node_list_t;
|
||||
|
||||
void node_list_destroy(struct node_list_t* list);
|
||||
struct node_list_t* node_list_create();
|
||||
|
||||
int node_list_add(node_list_t* list, node_t* node);
|
||||
int node_list_insert(node_list_t* list, unsigned int index, node_t* node);
|
||||
int node_list_remove(node_list_t* list, node_t* node);
|
||||
|
||||
#endif /* NODE_LIST_H_ */
|
||||
@@ -0,0 +1,41 @@
|
||||
/*
|
||||
* object.h
|
||||
*
|
||||
* Created on: Mar 8, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
|
||||
#ifndef OBJECT_H_
|
||||
#define OBJECT_H_
|
||||
|
||||
#ifndef TRUE
|
||||
#define TRUE 1
|
||||
#endif
|
||||
|
||||
#ifndef FALSE
|
||||
#define FALSE 0
|
||||
#endif
|
||||
|
||||
typedef struct object_t {
|
||||
void* value;
|
||||
unsigned int type;
|
||||
unsigned int size;
|
||||
} object_t;
|
||||
|
||||
#endif /* OBJECT_H_ */
|
||||
216
Sources/libimobiledevice/dependencies/libplist/libcnary/node.c
Normal file
216
Sources/libimobiledevice/dependencies/libplist/libcnary/node.c
Normal file
@@ -0,0 +1,216 @@
|
||||
/*
|
||||
* node.c
|
||||
*
|
||||
* Created on: Mar 7, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "node.h"
|
||||
#include "node_list.h"
|
||||
|
||||
void node_destroy(node_t* node) {
|
||||
if(!node) return;
|
||||
|
||||
if (node->children && node->children->count > 0) {
|
||||
node_t* ch;
|
||||
while ((ch = node->children->begin)) {
|
||||
node_list_remove(node->children, ch);
|
||||
node_destroy(ch);
|
||||
}
|
||||
}
|
||||
node_list_destroy(node->children);
|
||||
node->children = NULL;
|
||||
|
||||
free(node);
|
||||
}
|
||||
|
||||
node_t* node_create(node_t* parent, void* data) {
|
||||
int error = 0;
|
||||
|
||||
node_t* node = (node_t*) malloc(sizeof(node_t));
|
||||
if(node == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
memset(node, '\0', sizeof(node_t));
|
||||
|
||||
node->data = data;
|
||||
node->next = NULL;
|
||||
node->prev = NULL;
|
||||
node->count = 0;
|
||||
node->parent = NULL;
|
||||
node->children = NULL;
|
||||
|
||||
// Pass NULL to create a root node
|
||||
if(parent != NULL) {
|
||||
// This is a child node so attach it to it's parent
|
||||
error = node_attach(parent, node);
|
||||
if(error < 0) {
|
||||
// Unable to attach nodes
|
||||
printf("ERROR: %d \"Unable to attach nodes\"\n", error);
|
||||
node_destroy(node);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return node;
|
||||
}
|
||||
|
||||
int node_attach(node_t* parent, node_t* child) {
|
||||
if (!parent || !child) return -1;
|
||||
child->parent = parent;
|
||||
if(!parent->children) {
|
||||
parent->children = node_list_create();
|
||||
}
|
||||
int res = node_list_add(parent->children, child);
|
||||
if (res == 0) {
|
||||
parent->count++;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
int node_detach(node_t* parent, node_t* child) {
|
||||
if (!parent || !child) return -1;
|
||||
int node_index = node_list_remove(parent->children, child);
|
||||
if (node_index >= 0) {
|
||||
parent->count--;
|
||||
}
|
||||
return node_index;
|
||||
}
|
||||
|
||||
int node_insert(node_t* parent, unsigned int node_index, node_t* child)
|
||||
{
|
||||
if (!parent || !child) return -1;
|
||||
child->parent = parent;
|
||||
if(!parent->children) {
|
||||
parent->children = node_list_create();
|
||||
}
|
||||
int res = node_list_insert(parent->children, node_index, child);
|
||||
if (res == 0) {
|
||||
parent->count++;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
static void _node_debug(node_t* node, unsigned int depth) {
|
||||
unsigned int i = 0;
|
||||
node_t* current = NULL;
|
||||
for(i = 0; i < depth; i++) {
|
||||
printf("\t");
|
||||
}
|
||||
if(!node->parent) {
|
||||
printf("ROOT\n");
|
||||
}
|
||||
|
||||
if(!node->children && node->parent) {
|
||||
printf("LEAF\n");
|
||||
} else {
|
||||
if(node->parent) {
|
||||
printf("NODE\n");
|
||||
}
|
||||
for (current = node_first_child(node); current; current = node_next_sibling(current)) {
|
||||
_node_debug(current, depth+1);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void node_debug(node_t* node)
|
||||
{
|
||||
_node_debug(node, 0);
|
||||
}
|
||||
|
||||
unsigned int node_n_children(struct node_t* node)
|
||||
{
|
||||
if (!node) return 0;
|
||||
return node->count;
|
||||
}
|
||||
|
||||
node_t* node_nth_child(struct node_t* node, unsigned int n)
|
||||
{
|
||||
if (!node || !node->children || !node->children->begin) return NULL;
|
||||
unsigned int node_index = 0;
|
||||
int found = 0;
|
||||
node_t *ch;
|
||||
for (ch = node_first_child(node); ch; ch = node_next_sibling(ch)) {
|
||||
if (node_index++ == n) {
|
||||
found = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!found) {
|
||||
return NULL;
|
||||
}
|
||||
return ch;
|
||||
}
|
||||
|
||||
node_t* node_first_child(struct node_t* node)
|
||||
{
|
||||
if (!node || !node->children) return NULL;
|
||||
return node->children->begin;
|
||||
}
|
||||
|
||||
node_t* node_prev_sibling(struct node_t* node)
|
||||
{
|
||||
if (!node) return NULL;
|
||||
return node->prev;
|
||||
}
|
||||
|
||||
node_t* node_next_sibling(struct node_t* node)
|
||||
{
|
||||
if (!node) return NULL;
|
||||
return node->next;
|
||||
}
|
||||
|
||||
int node_child_position(struct node_t* parent, node_t* child)
|
||||
{
|
||||
if (!parent || !parent->children || !parent->children->begin || !child) return -1;
|
||||
int node_index = 0;
|
||||
int found = 0;
|
||||
node_t *ch;
|
||||
for (ch = node_first_child(parent); ch; ch = node_next_sibling(ch)) {
|
||||
if (ch == child) {
|
||||
found = 1;
|
||||
break;
|
||||
}
|
||||
node_index++;
|
||||
}
|
||||
if (!found) {
|
||||
return -1;
|
||||
}
|
||||
return node_index;
|
||||
}
|
||||
|
||||
node_t* node_copy_deep(node_t* node, copy_func_t copy_func)
|
||||
{
|
||||
if (!node) return NULL;
|
||||
void *data = NULL;
|
||||
if (copy_func) {
|
||||
data = copy_func(node->data);
|
||||
}
|
||||
node_t* copy = node_create(NULL, data);
|
||||
node_t* ch;
|
||||
for (ch = node_first_child(node); ch; ch = node_next_sibling(ch)) {
|
||||
node_t* cc = node_copy_deep(ch, copy_func);
|
||||
node_attach(copy, cc);
|
||||
}
|
||||
return copy;
|
||||
}
|
||||
@@ -0,0 +1,155 @@
|
||||
/*
|
||||
* node_list.c
|
||||
*
|
||||
* Created on: Mar 8, 2011
|
||||
* Author: posixninja
|
||||
*
|
||||
* Copyright (c) 2011 Joshua Hill. All Rights Reserved.
|
||||
*
|
||||
* 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 2.1 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
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "node.h"
|
||||
#include "node_list.h"
|
||||
|
||||
void node_list_destroy(node_list_t* list) {
|
||||
free(list);
|
||||
}
|
||||
|
||||
node_list_t* node_list_create() {
|
||||
node_list_t* list = (node_list_t*) malloc(sizeof(node_list_t));
|
||||
if(list == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
memset(list, '\0', sizeof(node_list_t));
|
||||
|
||||
// Initialize structure
|
||||
list->begin = NULL;
|
||||
list->end = NULL;
|
||||
list->count = 0;
|
||||
return list;
|
||||
}
|
||||
|
||||
int node_list_add(node_list_t* list, node_t* node) {
|
||||
if (!list || !node) return -1;
|
||||
|
||||
// Find the last element in the list
|
||||
node_t* last = list->end;
|
||||
|
||||
// Setup our new node as the new last element
|
||||
node->next = NULL;
|
||||
node->prev = last;
|
||||
|
||||
// Set the next element of our old "last" element
|
||||
if (last) {
|
||||
// but only if the node list is not empty
|
||||
last->next = node;
|
||||
} else {
|
||||
// otherwise this is the start of the list
|
||||
list->begin = node;
|
||||
}
|
||||
|
||||
// Set the lists prev to the new last element
|
||||
list->end = node;
|
||||
|
||||
// Increment our node count for this list
|
||||
list->count++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int node_list_insert(node_list_t* list, unsigned int node_index, node_t* node) {
|
||||
if (!list || !node) return -1;
|
||||
if (node_index >= list->count) {
|
||||
return node_list_add(list, node);
|
||||
}
|
||||
|
||||
// Get the first element in the list
|
||||
node_t* cur = list->begin;
|
||||
|
||||
unsigned int pos = 0;
|
||||
node_t* prev = NULL;
|
||||
|
||||
if (node_index > 0) {
|
||||
while (pos < node_index) {
|
||||
prev = cur;
|
||||
cur = cur->next;
|
||||
pos++;
|
||||
}
|
||||
}
|
||||
|
||||
if (prev) {
|
||||
// Set previous node
|
||||
node->prev = prev;
|
||||
// Set next node of our new node to next node of the previous node
|
||||
node->next = prev->next;
|
||||
// Set next node of previous node to our new node
|
||||
prev->next = node;
|
||||
} else {
|
||||
node->prev = NULL;
|
||||
// get old first element in list
|
||||
node->next = list->begin;
|
||||
// set new node as first element in list
|
||||
list->begin = node;
|
||||
}
|
||||
|
||||
if (node->next == NULL) {
|
||||
// Set the lists prev to the new last element
|
||||
list->end = node;
|
||||
} else {
|
||||
// set prev of the new next element to our node
|
||||
node->next->prev = node;
|
||||
}
|
||||
|
||||
// Increment our node count for this list
|
||||
list->count++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int node_list_remove(node_list_t* list, node_t* node) {
|
||||
if (!list || !node) return -1;
|
||||
if (list->count == 0) return -1;
|
||||
|
||||
int node_index = 0;
|
||||
node_t* n;
|
||||
for (n = list->begin; n; n = n->next) {
|
||||
if (node == n) {
|
||||
node_t* newnode = node->next;
|
||||
if (node->prev) {
|
||||
node->prev->next = newnode;
|
||||
if (newnode) {
|
||||
newnode->prev = node->prev;
|
||||
} else {
|
||||
// last element in the list
|
||||
list->end = node->prev;
|
||||
}
|
||||
} else {
|
||||
// we just removed the first element
|
||||
if (newnode) {
|
||||
newnode->prev = NULL;
|
||||
}
|
||||
list->begin = newnode;
|
||||
}
|
||||
list->count--;
|
||||
return node_index;
|
||||
}
|
||||
node_index++;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user