qemu

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/*
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 * event notifier support
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 *
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 * Copyright Red Hat, Inc. 2010
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 *
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 * Authors:
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 *  Michael S. Tsirkin <mst@redhat.com>
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 *
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 * This work is licensed under the terms of the GNU GPL, version 2 or later.
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 * See the COPYING file in the top-level directory.
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 */
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#include "qemu/osdep.h"
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#include "qemu/event_notifier.h"
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#include "qemu/main-loop.h"
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int event_notifier_init(EventNotifier *e, int active)
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{
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    e->event = CreateEvent(NULL, TRUE, FALSE, NULL);
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    assert(e->event);
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    return 0;
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}
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void event_notifier_cleanup(EventNotifier *e)
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{
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    CloseHandle(e->event);
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    e->event = NULL;
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}
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HANDLE event_notifier_get_handle(EventNotifier *e)
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{
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    return e->event;
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}
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int event_notifier_set(EventNotifier *e)
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{
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    SetEvent(e->event);
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    return 0;
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}
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int event_notifier_test_and_clear(EventNotifier *e)
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{
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    int ret = WaitForSingleObject(e->event, 0);
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    if (ret == WAIT_OBJECT_0) {
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        ResetEvent(e->event);
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        return true;
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    }
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    return false;
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}
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