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
add_to_proclist(struct proclist_t * list,struct proclist_item_t * item)25 void 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
remove_from_proclist(struct proclist_t * list,struct proclist_item_t * item)44 void 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