xref: /illumos-kvm-cmd/notify.h (revision 68396ea9)
1 /*
2  * Notifier lists
3  *
4  * Copyright IBM, Corp. 2010
5  *
6  * Authors:
7  *  Anthony Liguori   <aliguori@us.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2.  See
10  * the COPYING file in the top-level directory.
11  *
12  */
13 
14 #ifndef QEMU_NOTIFY_H
15 #define QEMU_NOTIFY_H
16 
17 #include "qemu-queue.h"
18 
19 typedef struct Notifier Notifier;
20 
21 struct Notifier
22 {
23     void (*notify)(Notifier *notifier);
24     QTAILQ_ENTRY(Notifier) node;
25 };
26 
27 typedef struct NotifierList
28 {
29     QTAILQ_HEAD(, Notifier) notifiers;
30 } NotifierList;
31 
32 #define NOTIFIER_LIST_INITIALIZER(head) \
33     { QTAILQ_HEAD_INITIALIZER((head).notifiers) }
34 
35 void notifier_list_init(NotifierList *list);
36 
37 void notifier_list_add(NotifierList *list, Notifier *notifier);
38 
39 void notifier_list_remove(NotifierList *list, Notifier *notifier);
40 
41 void notifier_list_notify(NotifierList *list);
42 
43 #endif
44