mirror of https://gitee.com/openkylin/qemu.git
130 lines
2.6 KiB
C
130 lines
2.6 KiB
C
/*
|
|
* QEMU JSON writer
|
|
*
|
|
* Copyright Alexander Graf
|
|
*
|
|
* Authors:
|
|
* Alexander Graf <agraf@suse.de>
|
|
*
|
|
* 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 <qapi/qmp/qstring.h>
|
|
#include <stdbool.h>
|
|
#include <glib.h>
|
|
#include <qjson.h>
|
|
#include <qemu/module.h>
|
|
#include <qom/object.h>
|
|
|
|
struct QJSON {
|
|
Object obj;
|
|
QString *str;
|
|
bool omit_comma;
|
|
};
|
|
|
|
#define QJSON(obj) OBJECT_CHECK(QJSON, (obj), TYPE_QJSON)
|
|
|
|
static void json_emit_element(QJSON *json, const char *name)
|
|
{
|
|
/* Check whether we need to print a , before an element */
|
|
if (json->omit_comma) {
|
|
json->omit_comma = false;
|
|
} else {
|
|
qstring_append(json->str, ", ");
|
|
}
|
|
|
|
if (name) {
|
|
qstring_append(json->str, "\"");
|
|
qstring_append(json->str, name);
|
|
qstring_append(json->str, "\" : ");
|
|
}
|
|
}
|
|
|
|
void json_start_object(QJSON *json, const char *name)
|
|
{
|
|
json_emit_element(json, name);
|
|
qstring_append(json->str, "{ ");
|
|
json->omit_comma = true;
|
|
}
|
|
|
|
void json_end_object(QJSON *json)
|
|
{
|
|
qstring_append(json->str, " }");
|
|
json->omit_comma = false;
|
|
}
|
|
|
|
void json_start_array(QJSON *json, const char *name)
|
|
{
|
|
json_emit_element(json, name);
|
|
qstring_append(json->str, "[ ");
|
|
json->omit_comma = true;
|
|
}
|
|
|
|
void json_end_array(QJSON *json)
|
|
{
|
|
qstring_append(json->str, " ]");
|
|
json->omit_comma = false;
|
|
}
|
|
|
|
void json_prop_int(QJSON *json, const char *name, int64_t val)
|
|
{
|
|
json_emit_element(json, name);
|
|
qstring_append_int(json->str, val);
|
|
}
|
|
|
|
void json_prop_str(QJSON *json, const char *name, const char *str)
|
|
{
|
|
json_emit_element(json, name);
|
|
qstring_append_chr(json->str, '"');
|
|
qstring_append(json->str, str);
|
|
qstring_append_chr(json->str, '"');
|
|
}
|
|
|
|
const char *qjson_get_str(QJSON *json)
|
|
{
|
|
return qstring_get_str(json->str);
|
|
}
|
|
|
|
QJSON *qjson_new(void)
|
|
{
|
|
QJSON *json = QJSON(object_new(TYPE_QJSON));
|
|
return json;
|
|
}
|
|
|
|
void qjson_finish(QJSON *json)
|
|
{
|
|
json_end_object(json);
|
|
}
|
|
|
|
static void qjson_initfn(Object *obj)
|
|
{
|
|
QJSON *json = QJSON(obj);
|
|
|
|
json->str = qstring_from_str("{ ");
|
|
json->omit_comma = true;
|
|
}
|
|
|
|
static void qjson_finalizefn(Object *obj)
|
|
{
|
|
QJSON *json = QJSON(obj);
|
|
|
|
qobject_decref(QOBJECT(json->str));
|
|
}
|
|
|
|
static const TypeInfo qjson_type_info = {
|
|
.name = TYPE_QJSON,
|
|
.parent = TYPE_OBJECT,
|
|
.instance_size = sizeof(QJSON),
|
|
.instance_init = qjson_initfn,
|
|
.instance_finalize = qjson_finalizefn,
|
|
};
|
|
|
|
static void qjson_register_types(void)
|
|
{
|
|
type_register_static(&qjson_type_info);
|
|
}
|
|
|
|
type_init(qjson_register_types)
|