qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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event_notifier-win32.c (961B)

      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 #include "qemu/osdep.h"
     14 #include "qemu/event_notifier.h"
     15 #include "qemu/main-loop.h"
     16 
     17 int event_notifier_init(EventNotifier *e, int active)
     18 {
     19     e->event = CreateEvent(NULL, TRUE, FALSE, NULL);
     20     assert(e->event);
     21     return 0;
     22 }
     23 
     24 void event_notifier_cleanup(EventNotifier *e)
     25 {
     26     CloseHandle(e->event);
     27     e->event = NULL;
     28 }
     29 
     30 HANDLE event_notifier_get_handle(EventNotifier *e)
     31 {
     32     return e->event;
     33 }
     34 
     35 int event_notifier_set(EventNotifier *e)
     36 {
     37     SetEvent(e->event);
     38     return 0;
     39 }
     40 
     41 int event_notifier_test_and_clear(EventNotifier *e)
     42 {
     43     int ret = WaitForSingleObject(e->event, 0);
     44     if (ret == WAIT_OBJECT_0) {
     45         ResetEvent(e->event);
     46         return true;
     47     }
     48     return false;
     49 }