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qom: add QObject-based property get/set wrappers

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Move the creation of QmpInputVisitor and QmpOutputVisitor from qmp.c
to qom/object.c, since it's the only practical way to access object
properties.

Keep this isolated such that it's easy to remove.  At some point, we need
to remove all usage of QObject in the tree and replace it with GVariant.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-02-01 16:58:47 +01:00
parent b46d9b1082
commit 9f5f135058
4 changed files with 90 additions and 16 deletions
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44
qom/qom-qobject.c Normal file
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/*
* 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-common.h"
#include "qemu/object.h"
#include "qemu/qom-qobject.h"
#include "qapi/qapi-visit-core.h"
#include "qapi/qmp-input-visitor.h"
#include "qapi/qmp-output-visitor.h"
void object_property_set_qobject(Object *obj, QObject *value,
const char *name, Error **errp)
{
QmpInputVisitor *mi;
mi = qmp_input_visitor_new(value);
object_property_set(obj, qmp_input_get_visitor(mi), name, errp);
qmp_input_visitor_cleanup(mi);
}
QObject *object_property_get_qobject(Object *obj, const char *name,
Error **errp)
{
QObject *ret = NULL;
Error *local_err = NULL;
QmpOutputVisitor *mo;
mo = qmp_output_visitor_new();
object_property_get(obj, qmp_output_get_visitor(mo), name, &local_err);
if (!local_err) {
ret = qmp_output_get_qobject(mo);
}
error_propagate(errp, local_err);
qmp_output_visitor_cleanup(mo);
return ret;
}