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[Qemu-devel] [PATCH v6 21/23] qapi: Simplify extra member error reportin
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v6 21/23] qapi: Simplify extra member error reporting in input visitors |
Date: |
Wed, 25 Nov 2015 17:23:18 -0700 |
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 one entry, we can get that from a single iteration on an
iterator, without needing to split logic to a callback function.
Suggested-by: Markus Armbruster <address@hidden>
Signed-off-by: Eric Blake <address@hidden>
---
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 37f172d..46dd9fe 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -150,17 +150,11 @@ opts_start_struct(Visitor *v, void **obj, const char
*kind,
}
-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 = DO_UPCAST(OptsVisitor, visitor, v);
+ GHashTableIter iter;
GQueue *any;
if (--ov->depth > 0) {
@@ -168,8 +162,8 @@ opts_end_struct(Visitor *v, Error **errp)
}
/* we should have processed all (distinct) QemuOpt instances */
- any = 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 = g_queue_peek_head(any);
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index 9ff1e75..9dbe025 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -88,12 +88,6 @@ static void qmp_input_push(QmpInputVisitor *qiv, QObject
*obj, Error **errp)
qiv->nb_stack++;
}
-/** Only for qmp_input_pop. */
-static gboolean always_true(gpointer key, gpointer val, gpointer user_pkey)
-{
- *(const char **)user_pkey = (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 = 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);
--
2.4.3
- [Qemu-devel] [PATCH v6 13/23] qapi: Add type.is_empty() helper, (continued)
- [Qemu-devel] [PATCH v6 13/23] qapi: Add type.is_empty() helper, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 15/23] qapi: Improve generated event use of qapi visitor, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 19/23] qapi-visit: Unify struct and union visit, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 18/23] qapi: Canonicalize missing object to :empty, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 23/23] qapi: Change visit_type_FOO() to no longer return partial objects, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 22/23] qapi: Split visit_end_struct() into pieces, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 12/23] balloon: Improve use of qapi visitor, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 07/23] qapi: Document visitor interfaces, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 17/23] qapi: Eliminate empty visit_type_FOO_fields, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 08/23] qapi: Drop unused error argument for list and implicit struct, Eric Blake, 2015/11/25
- [Qemu-devel] [PATCH v6 21/23] qapi: Simplify extra member error reporting in input visitors,
Eric Blake <=
- [Qemu-devel] [PATCH v6 20/23] qapi: Rework deallocation of partial struct, Eric Blake, 2015/11/25