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