Improve writer/reader processing

- Handle indefinite number and kind of tags and fields for a metric
- Include only once header files
- Cleaning and ordering code

Change-Id: I14a4f0e6e1626971bff73ce7d9ac067bda69cfc4
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/utils/list.h b/src/utils/list.h
index dcb01bd..7cacbed 100644
--- a/src/utils/list.h
+++ b/src/utils/list.h
@@ -27,8 +27,8 @@ struct list {
 };
 
 void destroy_list(struct list *l);
-void add_elt(struct list *l, const char *key, json_object *value);
-void add_key(struct list *l, const char *key);
+void add_elt(struct list **l, const char *key, json_object *value);
+void add_key(struct list **l, const char *key);
 struct list *get_elt(struct list *l, int index);
 struct list *find_elt_from_key(struct list *l, const char *key);
 json_object *find_key_value(struct list *l, const char *key);