virtio-scsi: work around bug in old BIOSes
[qemu.git] / qapi / qmp-event.c
1 /*
2 * QMP Event related
3 *
4 * Copyright (c) 2014 Wenchao Xia
5 *
6 * Authors:
7 * Wenchao Xia <wenchaoqemu@gmail.com>
8 *
9 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
10 * See the COPYING.LIB file in the top-level directory.
11 *
12 */
13
14 #include <inttypes.h>
15
16 #include "qemu-common.h"
17 #include "qapi/qmp-event.h"
18 #include "qapi/qmp/qstring.h"
19 #include "qapi/qmp/qjson.h"
20
21 #ifdef _WIN32
22 #include "sysemu/os-win32.h"
23 #endif
24
25 #ifdef CONFIG_POSIX
26 #include "sysemu/os-posix.h"
27 #endif
28
29 static QMPEventFuncEmit qmp_emit;
30
31 void qmp_event_set_func_emit(QMPEventFuncEmit emit)
32 {
33 qmp_emit = emit;
34 }
35
36 QMPEventFuncEmit qmp_event_get_func_emit(void)
37 {
38 return qmp_emit;
39 }
40
41 static void timestamp_put(QDict *qdict)
42 {
43 int err;
44 QObject *obj;
45 qemu_timeval tv;
46 int64_t sec, usec;
47
48 err = qemu_gettimeofday(&tv);
49 if (err < 0) {
50 /* Put -1 to indicate failure of getting host time */
51 sec = -1;
52 usec = -1;
53 } else {
54 sec = tv.tv_sec;
55 usec = tv.tv_usec;
56 }
57
58 obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
59 "'microseconds': %" PRId64 " }",
60 sec, usec);
61 qdict_put_obj(qdict, "timestamp", obj);
62 }
63
64 /*
65 * Build a QDict, then fill event name and time stamp, caller should free the
66 * QDict after usage.
67 */
68 QDict *qmp_event_build_dict(const char *event_name)
69 {
70 QDict *dict = qdict_new();
71 qdict_put(dict, "event", qstring_from_str(event_name));
72 timestamp_put(dict);
73 return dict;
74 }