1/* Manage a list of processes. */
2
3/*
4 * Copyright (C) 2003-2006 IBM
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19 * 02111-1307, USA.
20 */
21
22#include <malloc.h>
23#include "proclist.h"
24
25void add_to_proclist(struct proclist_t *list, struct proclist_item_t *item)
26{
27	struct proclist_item_t *curr;
28
29	if (list->head == NULL) {
30		item->next = NULL;
31		list->head = item;
32		return;
33	}
34
35	curr = list->head;
36	while (curr->next != NULL) {
37		curr = curr->next;
38	}
39
40	item->next = NULL;
41	curr->next = item;
42}
43
44void remove_from_proclist(struct proclist_t *list, struct proclist_item_t *item)
45{
46	struct proclist_item_t *curr, *prev;
47
48	if (list->head == NULL) {
49		return;
50	}
51
52	if (list->head == item) {
53		list->head = item->next;
54		item->next = NULL;
55		return;
56	}
57
58	prev = list->head;
59	curr = list->head->next;
60
61	while (curr != NULL && curr != item) {
62		prev = curr;
63		curr = curr->next;
64	}
65
66	if (curr == NULL) {
67		return;
68	}
69
70	prev->next = item->next;
71	item->next = NULL;
72}
73