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batman-adv: add bat_neigh_is_equiv_or_better API function

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Each routing protocol has its own metric semantic and
therefore is the protocol itself the only component able to
compare two metrics to check their "similarity".

This new API allows each routing protocol to implement its
own logic and make the external code protocol agnostic.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
This commit is contained in:
Antonio Quartulli
2013-09-02 12:15:05 +02:00
committed by Antonio Quartulli
parent a3285a8f20
commit c43c981e50
4 changed files with 30 additions and 1 deletions
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net/batman-adv/types.h
+4
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@@ -993,6 +993,8 @@ struct batadv_forw_packet {
* @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
* @bat_ogm_emit: send scheduled OGM
* @bat_neigh_cmp: compare the metrics of two neighbors
* @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or
* better than neigh2 from the metric prospective
* @bat_orig_print: print the originator table (optional)
*/
struct batadv_algo_ops {
@@ -1006,6 +1008,8 @@ struct batadv_algo_ops {
void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1,
struct batadv_neigh_node *neigh2);
bool (*bat_neigh_is_equiv_or_better)(struct batadv_neigh_node *neigh1,
struct batadv_neigh_node *neigh2);
/* orig_node handling API */
void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
};