include/qapi: add g_autoptr support for qobject types

Need wrappers for qobject_unref() calls, which is a macro.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-10-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/qapi/qmp/qbool.h

@@ -21,6 +21,10 @@ struct QBool {
     bool value;
 };
 
+void qbool_unref(QBool *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QBool, qbool_unref)
+
 QBool *qbool_from_bool(bool value);
 bool qbool_get_bool(const QBool *qb);
 

include/qapi/qmp/qdict.h

@@ -30,6 +30,10 @@ struct QDict {
     QLIST_HEAD(,QDictEntry) table[QDICT_BUCKET_MAX];
 };
 
+void qdict_unref(QDict *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QDict, qdict_unref)
+
 /* Object API */
 QDict *qdict_new(void);
 const char *qdict_entry_key(const QDictEntry *entry);

include/qapi/qmp/qlist.h

@@ -26,6 +26,10 @@ struct QList {
     QTAILQ_HEAD(,QListEntry) head;
 };
 
+void qlist_unref(QList *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QList, qlist_unref)
+
 #define qlist_append(qlist, obj) \
         qlist_append_obj(qlist, QOBJECT(obj))
 

include/qapi/qmp/qnull.h

@@ -26,4 +26,8 @@ static inline QNull *qnull(void)
     return qobject_ref(&qnull_);
 }
 
+void qnull_unref(QNull *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QNull, qnull_unref)
+
 #endif /* QNULL_H */

include/qapi/qmp/qnum.h

@@ -54,6 +54,10 @@ struct QNum {
     } u;
 };
 
+void qnum_unref(QNum *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QNum, qnum_unref)
+
 QNum *qnum_from_int(int64_t value);
 QNum *qnum_from_uint(uint64_t value);
 QNum *qnum_from_double(double value);

include/qapi/qmp/qstring.h

@@ -20,6 +20,10 @@ struct QString {
     const char *string;
 };
 
+void qstring_unref(QString *q);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(QString, qstring_unref)
+
 QString *qstring_new(void);
 QString *qstring_from_str(const char *str);
 QString *qstring_from_substr(const char *str, size_t start, size_t end);

qobject/qbool.c

@@ -56,3 +56,8 @@ void qbool_destroy_obj(QObject *obj)
     assert(obj != NULL);
     g_free(qobject_to(QBool, obj));
 }
+
+void qbool_unref(QBool *q)
+{
+    qobject_unref(q);
+}

qobject/qdict.c

@@ -442,3 +442,8 @@ void qdict_destroy_obj(QObject *obj)
 
     g_free(qdict);
 }
+
+void qdict_unref(QDict *q)
+{
+    qobject_unref(q);
+}

qobject/qlist.c

@@ -182,3 +182,8 @@ void qlist_destroy_obj(QObject *obj)
 
     g_free(qlist);
 }
+
+void qlist_unref(QList *q)
+{
+    qobject_unref(q);
+}

qobject/qnull.c

@@ -29,3 +29,8 @@ bool qnull_is_equal(const QObject *x, const QObject *y)
 {
     return true;
 }
+
+void qnull_unref(QNull *q)
+{
+    qobject_unref(q);
+}

qobject/qnum.c

@@ -239,3 +239,8 @@ void qnum_destroy_obj(QObject *obj)
     assert(obj != NULL);
     g_free(qobject_to(QNum, obj));
 }
+
+void qnum_unref(QNum *q)
+{
+    qobject_unref(q);
+}

qobject/qstring.c

@@ -100,3 +100,8 @@ void qstring_destroy_obj(QObject *obj)
     g_free((char *)qs->string);
     g_free(qs);
 }
+
+void qstring_unref(QString *q)
+{
+    qobject_unref(q);
+}