root / event_notifier-win32.c @ 1de7afc9
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| 1 | fc97a652 | Paolo Bonzini | /*
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| 2 | fc97a652 | Paolo Bonzini | * event notifier support
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| 3 | fc97a652 | Paolo Bonzini | *
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| 4 | fc97a652 | Paolo Bonzini | * Copyright Red Hat, Inc. 2010
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| 5 | fc97a652 | Paolo Bonzini | *
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| 6 | fc97a652 | Paolo Bonzini | * Authors:
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| 7 | fc97a652 | Paolo Bonzini | * Michael S. Tsirkin <mst@redhat.com>
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| 8 | fc97a652 | Paolo Bonzini | *
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| 9 | fc97a652 | Paolo Bonzini | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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| 10 | fc97a652 | Paolo Bonzini | * See the COPYING file in the top-level directory.
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| 11 | fc97a652 | Paolo Bonzini | */
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| 12 | fc97a652 | Paolo Bonzini | |
| 13 | fc97a652 | Paolo Bonzini | #include "qemu-common.h" |
| 14 | 1de7afc9 | Paolo Bonzini | #include "qemu/event_notifier.h" |
| 15 | 1de7afc9 | Paolo Bonzini | #include "qemu/main-loop.h" |
| 16 | fc97a652 | Paolo Bonzini | |
| 17 | fc97a652 | Paolo Bonzini | int event_notifier_init(EventNotifier *e, int active) |
| 18 | fc97a652 | Paolo Bonzini | {
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| 19 | e9bff10f | Jan Kiszka | e->event = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 20 | fc97a652 | Paolo Bonzini | assert(e->event); |
| 21 | fc97a652 | Paolo Bonzini | return 0; |
| 22 | fc97a652 | Paolo Bonzini | } |
| 23 | fc97a652 | Paolo Bonzini | |
| 24 | fc97a652 | Paolo Bonzini | void event_notifier_cleanup(EventNotifier *e)
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| 25 | fc97a652 | Paolo Bonzini | {
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| 26 | fc97a652 | Paolo Bonzini | CloseHandle(e->event); |
| 27 | fc97a652 | Paolo Bonzini | } |
| 28 | fc97a652 | Paolo Bonzini | |
| 29 | fc97a652 | Paolo Bonzini | HANDLE event_notifier_get_handle(EventNotifier *e) |
| 30 | fc97a652 | Paolo Bonzini | {
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| 31 | fc97a652 | Paolo Bonzini | return e->event;
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| 32 | fc97a652 | Paolo Bonzini | } |
| 33 | fc97a652 | Paolo Bonzini | |
| 34 | fc97a652 | Paolo Bonzini | int event_notifier_set_handler(EventNotifier *e,
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| 35 | fc97a652 | Paolo Bonzini | EventNotifierHandler *handler) |
| 36 | fc97a652 | Paolo Bonzini | {
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| 37 | fc97a652 | Paolo Bonzini | if (handler) {
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| 38 | fc97a652 | Paolo Bonzini | return qemu_add_wait_object(e->event, (IOHandler *)handler, e);
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| 39 | fc97a652 | Paolo Bonzini | } else {
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| 40 | fc97a652 | Paolo Bonzini | qemu_del_wait_object(e->event, (IOHandler *)handler, e); |
| 41 | fc97a652 | Paolo Bonzini | return 0; |
| 42 | fc97a652 | Paolo Bonzini | } |
| 43 | fc97a652 | Paolo Bonzini | } |
| 44 | fc97a652 | Paolo Bonzini | |
| 45 | fc97a652 | Paolo Bonzini | int event_notifier_set(EventNotifier *e)
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| 46 | fc97a652 | Paolo Bonzini | {
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| 47 | fc97a652 | Paolo Bonzini | SetEvent(e->event); |
| 48 | fc97a652 | Paolo Bonzini | return 0; |
| 49 | fc97a652 | Paolo Bonzini | } |
| 50 | fc97a652 | Paolo Bonzini | |
| 51 | fc97a652 | Paolo Bonzini | int event_notifier_test_and_clear(EventNotifier *e)
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| 52 | fc97a652 | Paolo Bonzini | {
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| 53 | fc97a652 | Paolo Bonzini | int ret = WaitForSingleObject(e->event, 0); |
| 54 | fc97a652 | Paolo Bonzini | if (ret == WAIT_OBJECT_0) {
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| 55 | fc97a652 | Paolo Bonzini | ResetEvent(e->event); |
| 56 | fc97a652 | Paolo Bonzini | return true; |
| 57 | fc97a652 | Paolo Bonzini | } |
| 58 | fc97a652 | Paolo Bonzini | return false; |
| 59 | fc97a652 | Paolo Bonzini | } |