From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42490) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLYs8-0004qf-0w for qemu-devel@nongnu.org; Tue, 19 Jan 2016 11:11:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aLYs6-0002A1-RA for qemu-devel@nongnu.org; Tue, 19 Jan 2016 11:11:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54826) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLYs6-00029g-Hw for qemu-devel@nongnu.org; Tue, 19 Jan 2016 11:11:06 -0500 From: Eric Blake Date: Tue, 19 Jan 2016 09:10:34 -0700 Message-Id: <1453219845-30939-27-git-send-email-eblake@redhat.com> In-Reply-To: <1453219845-30939-1-git-send-email-eblake@redhat.com> References: <1453219845-30939-1-git-send-email-eblake@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v9 26/37] qapi: Simplify excess input reporting in input visitors List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: marcandre.lureau@redhat.com, armbru@redhat.com, Michael Roth When reporting that an unvisited member remains at the end of an input visit for a struct, we were using g_hash_table_find() coupled with a callback function that always returns true, to locate an arbitrary member of the hash table. But if all we need is an arbitrary entry, we can get that from a single-use iterator, without needing a tautological callback function. Suggested-by: Markus Armbruster Signed-off-by: Eric Blake Reviewed-by: Marc-Andr=C3=A9 Lureau --- v9: no change v8: rebase to earlier changes v7: retitle, rebase to earlier context changes v6: new patch, based on comments on RFC against v5 7/46 --- qapi/opts-visitor.c | 12 +++--------- qapi/qmp-input-visitor.c | 14 +++++--------- 2 files changed, 8 insertions(+), 18 deletions(-) diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c index 62ffdd4..df312e6 100644 --- a/qapi/opts-visitor.c +++ b/qapi/opts-visitor.c @@ -156,17 +156,11 @@ opts_start_struct(Visitor *v, const char *name, voi= d **obj, } -static gboolean -ghr_true(gpointer ign_key, gpointer ign_value, gpointer ign_user_data) -{ - return TRUE; -} - - static void opts_end_struct(Visitor *v, Error **errp) { OptsVisitor *ov =3D to_ov(v); + GHashTableIter iter; GQueue *any; if (--ov->depth > 0) { @@ -174,8 +168,8 @@ opts_end_struct(Visitor *v, Error **errp) } /* we should have processed all (distinct) QemuOpt instances */ - any =3D g_hash_table_find(ov->unprocessed_opts, &ghr_true, NULL); - if (any) { + g_hash_table_iter_init(&iter, ov->unprocessed_opts); + if (g_hash_table_iter_next(&iter, NULL, (void **)&any)) { const QemuOpt *first; first =3D g_queue_peek_head(any); diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c index ad23bec..91ef945 100644 --- a/qapi/qmp-input-visitor.c +++ b/qapi/qmp-input-visitor.c @@ -88,12 +88,6 @@ static void qmp_input_push(QmpInputVisitor *qiv, QObje= ct *obj, Error **errp) qiv->nb_stack++; } -/** Only for qmp_input_pop. */ -static gboolean always_true(gpointer key, gpointer val, gpointer user_pk= ey) -{ - *(const char **)user_pkey =3D (const char *)key; - return TRUE; -} static void qmp_input_pop(QmpInputVisitor *qiv, Error **errp) { @@ -102,9 +96,11 @@ static void qmp_input_pop(QmpInputVisitor *qiv, Error= **errp) if (qiv->strict) { GHashTable * const top_ht =3D qiv->stack[qiv->nb_stack - 1].h; if (top_ht) { - if (g_hash_table_size(top_ht)) { - const char *key; - g_hash_table_find(top_ht, always_true, &key); + GHashTableIter iter; + const char *key; + + g_hash_table_iter_init(&iter, top_ht); + if (g_hash_table_iter_next(&iter, (void **)&key, NULL)) { error_setg(errp, QERR_QMP_EXTRA_MEMBER, key); } g_hash_table_unref(top_ht); --=20 2.5.0