Add a helper function to libckpool for setting a json object

src/libckpool.h

@@ -370,6 +370,14 @@ static inline void _json_set_bool(json_t *val, const char *key, bool boolean,
 }
 #define json_set_bool(val, key, boolean) _json_set_bool(val, key, boolean, __FILE__, __func__, __LINE__)
 
+static inline void _json_set_object(json_t *val, const char *key, json_t *object,
+				  const char *file, const char *func, const int line)
+{
+	if (unlikely(json_object_set_new_nocheck(val, key, object)))
+		LOGERR("Failed to set json object from %s %s:%d", file, func, line);
+}
+#define json_set_object(val, key, object) _json_set_object(val, key, object, __FILE__, __func__, __LINE__)
+
 void rename_proc(const char *name);
 void create_pthread(pthread_t *thread, void *(*start_routine)(void *), void *arg);
 void join_pthread(pthread_t thread);