[PATCH 12/28] hmp: special case help options for object_add

[Paolo Bonzini]

Fix "object_add help" and "object_add TYPE,help".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/qom/object_interfaces.h |  9 ++++++++-
 monitor/hmp-cmds.c              | 22 ++++++++--------------
 qom/object_interfaces.c         |  2 +-
 3 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/include/qom/object_interfaces.h b/include/qom/object_interfaces.h
index 07d5cc8832..abb23eaea3 100644
--- a/include/qom/object_interfaces.h
+++ b/include/qom/object_interfaces.h
@@ -149,6 +149,13 @@ typedef bool (*user_creatable_add_opts_predicate)(const 
char *type);
 int user_creatable_add_opts_foreach(void *opaque,
                                     QemuOpts *opts, Error **errp);
 
+/**
+ * user_creatable_print_types:
+ *
+ * Prints a list of user-creatable objects to stdout or the monitor.
+ */
+void user_creatable_print_types(void);
+
 /**
  * user_creatable_print_help:
  * @type: the QOM type to be added
@@ -174,7 +181,7 @@ bool user_creatable_print_help(const char *type, QemuOpts 
*opts);
  * no help was requested. It should only be called if we know that help is
  * requested and it will always print some help.
  */
-void user_creatable_print_help_from_qdict(QDict *args);
+void user_creatable_print_help_from_qdict(const QDict *args);
 
 /**
  * user_creatable_del:
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 65d8ff4849..153ece8176 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -1664,23 +1664,17 @@ void hmp_netdev_del(Monitor *mon, const QDict *qdict)
 void hmp_object_add(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
-    QemuOpts *opts;
-    Object *obj = NULL;
 
-    opts = qemu_opts_from_qdict(qemu_find_opts("object"), qdict, &err);
-    if (err) {
-        goto end;
+    if (is_help_option(qdict_get_str(qdict, "qom-type"))) {
+        user_creatable_print_types();
+        return;
     }
-
-    obj = user_creatable_add_opts(opts, &err);
-    qemu_opts_del(opts);
-
-end:
-    hmp_handle_error(mon, err);
-
-    if (obj) {
-        object_unref(obj);
+    if (qdict_haskey(qdict, "help")) {
+        user_creatable_print_help_from_qdict(qdict);
+        return;
     }
+    user_creatable_add_dict((QDict *)qdict, true, &err);
+    hmp_handle_error(mon, err);
 }
 
 void hmp_getfd(Monitor *mon, const QDict *qdict)
diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
index 34edc3d1d8..f7dcdf18e2 100644
--- a/qom/object_interfaces.c
+++ b/qom/object_interfaces.c
@@ -280,7 +280,7 @@ bool user_creatable_print_help(const char *type, QemuOpts 
*opts)
     return false;
 }
 
-void user_creatable_print_help_from_qdict(QDict *args)
+void user_creatable_print_help_from_qdict(const QDict *args)
 {
     const char *type = qdict_get_try_str(args, "qom-type");
 
-- 
2.26.2