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>

2 files changed, 14 insertions, 14 deletions

diff --git a/src/utils/list.c b/src/utils/list.c
index da97e42..bd7eeac 100644
--- a/src/utils/list.c
+++ b/src/utils/list.c
@@ -28,39 +28,39 @@ void destroy_list(struct list *l)
 	}
 }
 
-void add_elt(struct list *l, const char *key, json_object *value)
+void add_elt(struct list **l, const char *key, json_object *value)
 {
 	struct list *new_elt = malloc(sizeof(struct list));
 	new_elt->key = key;
 	new_elt->value = value;
 	new_elt->next = NULL;
 
-	if(l) {
-		while(l->next != NULL) {
-			l = l->next;
+	if(*l) {
+		while((*l)->next != NULL) {
+			*l = (*l)->next;
 		}
-		l->next = new_elt;
+		(*l)->next = new_elt;
 	}
 	else {
-		l = new_elt;
+		*l = new_elt;
 	}
 }
 
-void add_key(struct list *l, const char *key)
+void add_key(struct list **l, const char *key)
 {
 	struct list *new_elt = malloc(sizeof(struct list));
 	new_elt->key = key;
 	new_elt->value = NULL;
 	new_elt->next = NULL;
 
-	if(l) {
-		while(l->next != NULL) {
-			l = l->next;
+	if(*l) {
+		while((*l)->next != NULL) {
+			*l = (*l)->next;
 		}
-		l->next = new_elt;
+		(*l)->next = new_elt;
 	}
 	else {
-		l = new_elt;
+		*l = new_elt;
 	}
 }
 
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);