| 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 |