unicorn/qemu/qom/qom-qobject.c
Eric Blake f008d93ac0
qmp-input-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
qmp_input_visitor_cleanup(); which in turn means we no longer
need to return a subtype from qmp_input_visitor_new() nor a
public upcast function.

Generated code changes to qmp-marshal.c look like:

|@@ -52,11 +52,10 @@ void qmp_marshal_add_fd(QDict *args, QOb
| {
| Error *err = NULL;
| AddfdInfo *retval;
|- QmpInputVisitor *qiv = qmp_input_visitor_new(QOBJECT(args), true);
| Visitor *v;
| q_obj_add_fd_arg arg = {0};
|
|- v = qmp_input_get_visitor(qiv);
|+ v = qmp_input_visitor_new(QOBJECT(args), true);
| visit_start_struct(v, NULL, NULL, 0, &err);
| if (err) {
| goto out;

Backports commit b70ce1018a251c0c33498d9c927a07cade655a5e from qemu
2018-02-25 01:10:53 -05:00

47 lines
1.3 KiB
C

/*
* QEMU Object Model - QObject wrappers
*
* Copyright (C) 2012 Red Hat, Inc.
*
* Author: Paolo Bonzini <pbonzini@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "qom/object.h"
#include "qom/qom-qobject.h"
#include "qapi/visitor.h"
#include "qapi/qmp-input-visitor.h"
#include "qapi/qmp-output-visitor.h"
void object_property_set_qobject(struct uc_struct *uc, Object *obj, QObject *value,
const char *name, Error **errp)
{
Visitor *v;
/* TODO: Should we reject, rather than ignore, excess input? */
v = qmp_input_visitor_new(value, false);
object_property_set(uc, obj, v, name, errp);
visit_free(v);
}
QObject *object_property_get_qobject(struct uc_struct *uc, Object *obj, const char *name,
Error **errp)
{
QObject *ret = NULL;
Error *local_err = NULL;
QmpOutputVisitor *qov;
qov = qmp_output_visitor_new();
object_property_get(uc, obj, qmp_output_get_visitor(qov), name, &local_err);
if (!local_err) {
ret = qmp_output_get_qobject(qov);
}
error_propagate(errp, local_err);
qmp_output_visitor_cleanup(qov);
return ret;
}