monitor: Move qmp_query_qmp_schema to qmp-cmds-control.c

monitor/misc.c contains code that works only in the system emulator, so
it can't be linked to tools like a storage daemon. In order to make
schema introspection available for tools, move the function to
monitor/qmp-cmds-control.c, which can be linked into the storage daemon.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200129102239.31435-5-kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/monitor/qmp-cmds-control.c b/monitor/qmp-cmds-control.c
index d5f21f9..5cd9bb8 100644
--- a/monitor/qmp-cmds-control.c
+++ b/monitor/qmp-cmds-control.c
@@ -29,6 +29,7 @@
 #include "qapi/error.h"
 #include "qapi/qapi-commands-control.h"
 #include "qapi/qapi-emit-events.h"
+#include "qapi/qapi-introspect.h"
 
 /*
  * Accept QMP capabilities in @list for @mon.
@@ -151,3 +152,18 @@ EventInfoList *qmp_query_events(Error **errp)
 
     return ev_list;
 }
+
+/*
+ * Minor hack: generated marshalling suppressed for this command
+ * ('gen': false in the schema) so we can parse the JSON string
+ * directly into QObject instead of first parsing it with
+ * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
+ * to QObject with generated output marshallers, every time.  Instead,
+ * we do it in test-qobject-input-visitor.c, just to make sure
+ * qapi-gen.py's output actually conforms to the schema.
+ */
+void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
+                                 Error **errp)
+{
+    *ret_data = qobject_from_qlit(&qmp_schema_qlit);
+}