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qapi: introduce x-query-opcount QMP command
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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 "qemu/osdep.h"
15
16 #include "qapi/qmp-event.h"
17 #include "qapi/qmp/qstring.h"
18 #include "qapi/qmp/qdict.h"
19 #include "qapi/qmp/qjson.h"
20
21 static void timestamp_put(QDict *qdict)
22 {
23 int err;
24 QDict *ts;
25 qemu_timeval tv;
26
27 err = qemu_gettimeofday(&tv);
28 /* Put -1 to indicate failure of getting host time */
29 ts = qdict_from_jsonf_nofail("{ 'seconds': %lld, 'microseconds': %lld }",
30 err < 0 ? -1LL : (long long)tv.tv_sec,
31 err < 0 ? -1LL : (long long)tv.tv_usec);
32 qdict_put(qdict, "timestamp", ts);
33 }
34
35 /*
36 * Build a QDict, then fill event name and time stamp, caller should free the
37 * QDict after usage.
38 */
39 QDict *qmp_event_build_dict(const char *event_name)
40 {
41 QDict *dict = qdict_new();
42 qdict_put_str(dict, "event", event_name);
43 timestamp_put(dict);
44 return dict;
45 }