+ }
+}
+
+static void qmp_input_end_struct(Visiter *v, Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+
+ qmp_input_pop(qiv);
+}
+
+static void qmp_input_start_list(Visiter *v, const char *name, Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj || qobject_type(qobj) != QTYPE_QLIST) {
+ error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "list");
+ return;
+ }
+
+ qmp_input_push(qiv, qobj);
+}
+
+static GenericList *qmp_input_next_list(Visiter *v, GenericList **list, Error
**errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ GenericList *entry;
+ StackObject *so =&qiv->stack[qiv->nb_stack - 1];
+
+ if (so->entry == NULL) {
+ return NULL;
+ }
+
+ entry = qemu_mallocz(sizeof(*entry));
+ if (*list) {
+ so->entry = qlist_next(so->entry);
+ if (so->entry == NULL) {
+ qemu_free(entry);
+ return NULL;
+ }
+ (*list)->next = entry;
+ }
+ *list = entry;
+
+
+ return entry;
+}
+
+static void qmp_input_end_list(Visiter *v, Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+
+ qmp_input_pop(qiv);
+}
+
+static void qmp_input_type_int(Visiter *v, int64_t *obj, const char *name,
Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj || qobject_type(qobj) != QTYPE_QINT) {
+ error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "integer");
+ return;
+ }
+
+ *obj = qint_get_int(qobject_to_qint(qobj));
+}
+
+static void qmp_input_type_bool(Visiter *v, bool *obj, const char *name, Error
**errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj || qobject_type(qobj) != QTYPE_QBOOL) {
+ error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
+ return;
+ }
+
+ *obj = qbool_get_int(qobject_to_qbool(qobj));
+}
+
+static void qmp_input_type_str(Visiter *v, char **obj, const char *name, Error
**errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj || qobject_type(qobj) != QTYPE_QSTRING) {
+ error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
+ return;
+ }
+
+ *obj = qemu_strdup(qstring_get_str(qobject_to_qstring(qobj)));
+}
+
+static void qmp_input_type_number(Visiter *v, double *obj, const char *name,
Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj || qobject_type(qobj) != QTYPE_QFLOAT) {
+ error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "double");
+ return;
+ }
+
+ *obj = qfloat_get_double(qobject_to_qfloat(qobj));
+}
+
+static void qmp_input_type_enum(Visiter *v, int *obj, const char *kind, const
char *name, Error **errp)
+{
+ int64_t value;
+ qmp_input_type_int(v,&value, name, errp);
+ *obj = value;
+}
+
+static void qmp_input_start_optional(Visiter *v, bool *present,
+ const char *name, Error **errp)
+{
+ QmpInputVisiter *qiv = to_qiv(v);
+ QObject *qobj = qmp_input_get_object(qiv, name);
+
+ if (!qobj) {
+ *present = false;
+ return;
+ }
+
+ *present = true;
+}
+
+static void qmp_input_end_optional(Visiter *v, Error **errp)
+{
+}
+
+Visiter *qmp_input_get_visiter(QmpInputVisiter *v)
+{
+ return&v->visiter;
+}
+
+QmpInputVisiter *qmp_input_visiter_new(QObject *obj)
+{
+ QmpInputVisiter *v;
+
+ v = qemu_mallocz(sizeof(*v));
+
+ v->visiter.start_struct = qmp_input_start_struct;
+ v->visiter.end_struct = qmp_input_end_struct;
+ v->visiter.start_list = qmp_input_start_list;
+ v->visiter.next_list = qmp_input_next_list;
+ v->visiter.end_list = qmp_input_end_list;
+ v->visiter.type_enum = qmp_input_type_enum;
+ v->visiter.type_int = qmp_input_type_int;
+ v->visiter.type_bool = qmp_input_type_bool;
+ v->visiter.type_str = qmp_input_type_str;
+ v->visiter.type_number = qmp_input_type_number;
+ v->visiter.start_optional = qmp_input_start_optional;
+ v->visiter.end_optional = qmp_input_end_optional;
+
+ v->obj = obj;
+
+ return v;
+}
diff --git a/qapi/qmp-input-visiter.h b/qapi/qmp-input-visiter.h
new file mode 100644
index 0000000..3e4d06f
--- /dev/null
+++ b/qapi/qmp-input-visiter.h
@@ -0,0 +1,26 @@
+/*
+ * Input Visiter
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Anthony Liguori<address@hidden>
+ *
+ * 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_INPUT_VISITER_H
+#define QMP_INPUT_VISITER_H
+
+#include "qapi-visit-core.h"
+#include "qobject.h"
+
+typedef struct QmpInputVisiter QmpInputVisiter;
+
+QmpInputVisiter *qmp_input_visiter_new(QObject *obj);
+
+Visiter *qmp_input_get_visiter(QmpInputVisiter *v);
+
+#endif