hmp: Cache use of qapi visitor

Cache the visitor in a local variable instead of repeatedly
calling the accessor.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

2 files changed, 14 insertions, 10 deletions

diff --git a/hmp.c b/hmp.c
index 6071a0b85b..6a49886138 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1659,6 +1659,7 @@ void hmp_object_add(Monitor *mon, const QDict *qdict)
     char *id = NULL;
     OptsVisitor *ov;
     QDict *pdict;
+    Visitor *v;
 
     opts = qemu_opts_from_qdict(qemu_find_opts("object"), qdict, &err);
     if (err) {
@@ -1667,28 +1668,29 @@ void hmp_object_add(Monitor *mon, const QDict *qdict)
 
     ov = opts_visitor_new(opts);
     pdict = qdict_clone_shallow(qdict);
+    v = opts_get_visitor(ov);
 
-    visit_start_struct(opts_get_visitor(ov), NULL, NULL, NULL, 0, &err);
+    visit_start_struct(v, NULL, NULL, NULL, 0, &err);
     if (err) {
         goto out_clean;
     }
 
     qdict_del(pdict, "qom-type");
-    visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
+    visit_type_str(v, &type, "qom-type", &err);
     if (err) {
         goto out_end;
     }
 
     qdict_del(pdict, "id");
-    visit_type_str(opts_get_visitor(ov), &id, "id", &err);
+    visit_type_str(v, &id, "id", &err);
     if (err) {
         goto out_end;
     }
 
-    object_add(type, id, pdict, opts_get_visitor(ov), &err);
+    object_add(type, id, pdict, v, &err);
 
 out_end:
-    visit_end_struct(opts_get_visitor(ov), &err_end);
+    visit_end_struct(v, &err_end);
     if (!err && err_end) {
         qmp_object_del(id, NULL);
     }
diff --git a/vl.c b/vl.c
index db51ebd2a6..245b2bad6d 100644
--- a/vl.c
+++ b/vl.c
@@ -2824,17 +2824,19 @@ static int object_create(void *opaque, QemuOpts *opts, Error **errp)
     OptsVisitor *ov;
     QDict *pdict;
     bool (*type_predicate)(const char *) = opaque;
+    Visitor *v;
 
     ov = opts_visitor_new(opts);
     pdict = qemu_opts_to_qdict(opts, NULL);
+    v = opts_get_visitor(ov);
 
-    visit_start_struct(opts_get_visitor(ov), NULL, NULL, NULL, 0, &err);
+    visit_start_struct(v, NULL, NULL, NULL, 0, &err);
     if (err) {
         goto out;
     }
 
     qdict_del(pdict, "qom-type");
-    visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
+    visit_type_str(v, &type, "qom-type", &err);
     if (err) {
         goto out;
     }
@@ -2843,16 +2845,16 @@ static int object_create(void *opaque, QemuOpts *opts, Error **errp)
     }
 
     qdict_del(pdict, "id");
-    visit_type_str(opts_get_visitor(ov), &id, "id", &err);
+    visit_type_str(v, &id, "id", &err);
     if (err) {
         goto out;
     }
 
-    object_add(type, id, pdict, opts_get_visitor(ov), &err);
+    object_add(type, id, pdict, v, &err);
     if (err) {
         goto out;
     }
-    visit_end_struct(opts_get_visitor(ov), &err);
+    visit_end_struct(v, &err);
     if (err) {
         qmp_object_del(id, NULL);
     }