diff mbox

[v8,04/35] hmp: Improve use of qapi visitor

Message ID 1450717720-9627-5-git-send-email-eblake@redhat.com
State New
Headers show

Commit Message

Eric Blake Dec. 21, 2015, 5:08 p.m. UTC 
Cache the visitor in a local variable instead of repeatedly
calling the accessor.  Pass NULL for the visit_start_struct()
object (which matches the fact that we were already passing 0
for the size argument, because we aren't using the visit to
allocate a qapi struct).

Signed-off-by: Eric Blake <eblake@redhat.com>

---
v8: no change
v7: place earlier in series, drop attempts to provide a 'kind' string,
drop bogus avoidance of qmp_object_del() on error
v6: new patch, split from RFC on v5 7/46
---
 hmp.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

Comments

Marc-André Lureau Jan. 5, 2016, 2:06 p.m. UTC | #1 
Hi

On Mon, Dec 21, 2015 at 6:08 PM, Eric Blake <eblake@redhat.com> wrote:
> Cache the visitor in a local variable instead of repeatedly
> calling the accessor.  Pass NULL for the visit_start_struct()
> object (which matches the fact that we were already passing 0
> for the size argument, because we aren't using the visit to
> allocate a qapi struct).
>
> Signed-off-by: Eric Blake <eblake@redhat.com>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
diff mbox

Patch

diff --git a/hmp.c b/hmp.c
index c2b2c16..0d21f1d 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1667,9 +1667,9 @@  void hmp_object_add(Monitor *mon, const QDict *qdict)
     QemuOpts *opts;
     char *type = NULL;
     char *id = NULL;
-    void *dummy = NULL;
     OptsVisitor *ov;
     QDict *pdict;
+    Visitor *v;

     opts = qemu_opts_from_qdict(qemu_find_opts("object"), qdict, &err);
     if (err) {
@@ -1678,28 +1678,29 @@  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), &dummy, 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);
     }
@@ -1711,7 +1712,6 @@  out_clean:
     qemu_opts_del(opts);
     g_free(id);
     g_free(type);
-    g_free(dummy);

 out:
     hmp_handle_error(mon, &err);