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/qdict.h" 20 #include "qapi/qmp/qjson.h" 21 22 static QMPEventFuncEmit qmp_emit; 23 24 void qmp_event_set_func_emit(QMPEventFuncEmit emit) 25 { 26 qmp_emit = emit; 27 } 28 29 QMPEventFuncEmit qmp_event_get_func_emit(void) 30 { 31 return qmp_emit; 32 } 33 34 static void timestamp_put(QDict *qdict) 35 { 36 int err; 37 QDict *ts; 38 qemu_timeval tv; 39 40 err = qemu_gettimeofday(&tv); 41 /* Put -1 to indicate failure of getting host time */ 42 ts = qdict_from_jsonf_nofail("{ 'seconds': %lld, 'microseconds': %lld }", 43 err < 0 ? -1LL : (long long)tv.tv_sec, 44 err < 0 ? -1LL : (long long)tv.tv_usec); 45 qdict_put(qdict, "timestamp", ts); 46 } 47 48 /* 49 * Build a QDict, then fill event name and time stamp, caller should free the 50 * QDict after usage. 51 */ 52 QDict *qmp_event_build_dict(const char *event_name) 53 { 54 QDict *dict = qdict_new(); 55 qdict_put_str(dict, "event", event_name); 56 timestamp_put(dict); 57 return dict; 58 } 59