xref: /openbmc/qemu/include/qemu/event_notifier.h (revision 3bcf0fb3)
1 /*
2  * event notifier support
3  *
4  * Copyright Red Hat, Inc. 2010
5  *
6  * Authors:
7  *  Michael S. Tsirkin <mst@redhat.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 
13 #ifndef QEMU_EVENT_NOTIFIER_H
14 #define QEMU_EVENT_NOTIFIER_H
15 
16 
17 #ifdef _WIN32
18 #include <windows.h>
19 #endif
20 
21 struct EventNotifier {
22 #ifdef _WIN32
23     HANDLE event;
24 #else
25     int rfd;
26     int wfd;
27     bool initialized;
28 #endif
29 };
30 
31 typedef void EventNotifierHandler(EventNotifier *);
32 
33 int event_notifier_init(EventNotifier *, int active);
34 void event_notifier_cleanup(EventNotifier *);
35 int event_notifier_set(EventNotifier *);
36 int event_notifier_test_and_clear(EventNotifier *);
37 
38 #ifdef CONFIG_POSIX
39 void event_notifier_init_fd(EventNotifier *, int fd);
40 int event_notifier_get_fd(const EventNotifier *);
41 int event_notifier_get_wfd(const EventNotifier *);
42 #else
43 HANDLE event_notifier_get_handle(EventNotifier *);
44 #endif
45 
46 #endif
47