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 "qemu-common.h" 17 #include "qapi/qmp-event.h" 18 #include "qapi/qmp/qstring.h" 19 #include "qapi/qmp/qjson.h" 20 21 static QMPEventFuncEmit qmp_emit; 22 23 void qmp_event_set_func_emit(QMPEventFuncEmit emit) 24 { 25 qmp_emit = emit; 26 } 27 28 QMPEventFuncEmit qmp_event_get_func_emit(void) 29 { 30 return qmp_emit; 31 } 32 33 static void timestamp_put(QDict *qdict) 34 { 35 int err; 36 QObject *obj; 37 qemu_timeval tv; 38 int64_t sec, usec; 39 40 err = qemu_gettimeofday(&tv); 41 if (err < 0) { 42 /* Put -1 to indicate failure of getting host time */ 43 sec = -1; 44 usec = -1; 45 } else { 46 sec = tv.tv_sec; 47 usec = tv.tv_usec; 48 } 49 50 obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", " 51 "'microseconds': %" PRId64 " }", 52 sec, usec); 53 qdict_put_obj(qdict, "timestamp", obj); 54 } 55 56 /* 57 * Build a QDict, then fill event name and time stamp, caller should free the 58 * QDict after usage. 59 */ 60 QDict *qmp_event_build_dict(const char *event_name) 61 { 62 QDict *dict = qdict_new(); 63 qdict_put(dict, "event", qstring_from_str(event_name)); 64 timestamp_put(dict); 65 return dict; 66 } 67