Commit f8821260 authored by Wenchao Xia's avatar Wenchao Xia Committed by Luiz Capitulino
Browse files

qapi: add event helper functions 



This file holds some functions that do not need to be generated.

Signed-off-by: default avatarWenchao Xia <wenchaoqemu@gmail.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarLuiz Capitulino <lcapitulino@redhat.com>
parent be13d46d

include/qapi/qmp-event.h

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/*

 * QMP Event related

 *

 * Copyright (c) 2014 Wenchao Xia

 *

 * Authors:

 *  Wenchao Xia   <wenchaoqemu@gmail.com>

 *

 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.

 * See the COPYING.LIB file in the top-level directory.

 *

 */



#ifndef QMP_EVENT_H

#define QMP_EVENT_H



#include "qapi/error.h"

#include "qapi/qmp/qdict.h"



typedef void (*QMPEventFuncEmit)(unsigned event, QDict *dict, Error **errp);



void qmp_event_set_func_emit(QMPEventFuncEmit emit);



QMPEventFuncEmit qmp_event_get_func_emit(void);



QDict *qmp_event_build_dict(const char *event_name);

#endif

qapi/Makefile.objs

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@@ -3,3 +3,4 @@ util-obj-y += qmp-output-visitor.o qmp-registry.o qmp-dispatch.o 
util-obj-y += string-input-visitor.o string-output-visitor.o



util-obj-y += opts-visitor.o

util-obj-y += qmp-event.o

qapi/qmp-event.c

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/*

 * QMP Event related

 *

 * Copyright (c) 2014 Wenchao Xia

 *

 * Authors:

 *  Wenchao Xia   <wenchaoqemu@gmail.com>

 *

 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.

 * See the COPYING.LIB file in the top-level directory.

 *

 */



#include <inttypes.h>



#include "qemu-common.h"

#include "qapi/qmp-event.h"

#include "qapi/qmp/qstring.h"

#include "qapi/qmp/qjson.h"



#ifdef _WIN32

#include "sysemu/os-win32.h"

#endif



#ifdef CONFIG_POSIX

#include "sysemu/os-posix.h"

#endif



static QMPEventFuncEmit qmp_emit;



void qmp_event_set_func_emit(QMPEventFuncEmit emit)

{

    qmp_emit = emit;

}



QMPEventFuncEmit qmp_event_get_func_emit(void)

{

    return qmp_emit;

}



static void timestamp_put(QDict *qdict)

{

    int err;

    QObject *obj;

    qemu_timeval tv;

    int64_t sec, usec;



    err = qemu_gettimeofday(&tv);

    if (err < 0) {

        /* Put -1 to indicate failure of getting host time */

        sec = -1;

        usec = -1;

    } else {

        sec = tv.tv_sec;

        usec = tv.tv_usec;

    }



    obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "

                             "'microseconds': %" PRId64 " }",

                             sec, usec);

    qdict_put_obj(qdict, "timestamp", obj);

}



/*

 * Build a QDict, then fill event name and time stamp, caller should free the

 * QDict after usage.

 */

QDict *qmp_event_build_dict(const char *event_name)

{

    QDict *dict = qdict_new();

    qdict_put(dict, "event", qstring_from_str(event_name));

    timestamp_put(dict);

    return dict;

}