lib: Add struct llist for lists tracking len

The DHT uses a struct {struct list_head, size_t len} pattern, which is
also useful in the registry and other places. Having a struct llist
(defined in list.h) with consistent macros for addition/deletion etc
removes a lot of duplication and boilerplate and reduces the risk of
inconsistent updates.

The list management is now a macro-only implementation.

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/irmd/reg/proc.h b/src/irmd/reg/proc.h
index eeb8f0ab..18cc2803 100644
--- a/src/irmd/reg/proc.h
+++ b/src/irmd/reg/proc.h
@@ -32,8 +32,7 @@ struct reg_proc {
 
         struct proc_info      info;
 
-        struct list_head      names;   /* process accepts flows for names */
-        size_t                n_names; /* number of names                 */
+        struct llist          names;   /* process accepts flows for names */
 
         struct ssm_flow_set * set;
 };