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-rw-r--r--nest/route.h33
1 files changed, 31 insertions, 2 deletions
diff --git a/nest/route.h b/nest/route.h
index cb66be2a..d6474e09 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -15,6 +15,8 @@
#include "lib/resource.h"
#include "lib/net.h"
+#include <stdatomic.h>
+
struct ea_list;
struct protocol;
struct proto;
@@ -152,6 +154,7 @@ struct rtable_config {
byte sorted; /* Routes of network are sorted according to rte_better() */
btime min_settle_time; /* Minimum settle time for notifications */
btime max_settle_time; /* Maximum settle time for notifications */
+ btime export_settle_time; /* Delay before exports are announced */
};
typedef struct rtable {
@@ -181,12 +184,20 @@ typedef struct rtable {
byte prune_state; /* Table prune state, 1 -> scheduled, 2-> running */
byte hcu_scheduled; /* Hostcache update is scheduled */
byte nhu_state; /* Next Hop Update state */
+ byte export_used; /* Export journal setup scheduled */
struct fib_iterator prune_fit; /* Rtable prune FIB iterator */
struct fib_iterator nhu_fit; /* Next Hop Update FIB iterator */
struct tbf rl_pipe; /* Rate limiting token buffer for pipe collisions */
list subscribers; /* Subscribers for notifications */
struct timer *settle_timer; /* Settle time for notifications */
+
+ list pending_exports; /* List of packed struct rt_pending_export */
+ btime base_export_time; /* When first pending export was announced */
+ struct timer *export_timer;
+
+ struct rt_pending_export *first_export; /* First export to announce */
+ u64 next_export_seq; /* The next export will have this ID */
} rtable;
struct rt_subscription {
@@ -203,6 +214,7 @@ struct rt_subscription {
typedef struct network {
struct rte_storage *routes; /* Available routes for this network */
+ struct rt_pending_export *last, *first; /* Routes with unfinished exports */
struct fib_node n; /* FIB flags reserved for kernel syncer */
} net;
@@ -294,6 +306,7 @@ struct rt_import_hook {
u32 withdraws_accepted; /* Number of route withdraws accepted and processed */
} stats;
+ u64 flush_seq; /* Table export seq when the channel announced flushing */
btime last_state_change; /* Time of last state transition */
u8 import_state; /* IS_* */
@@ -306,7 +319,9 @@ struct rt_import_hook {
};
struct rt_pending_export {
+ struct rt_pending_export * _Atomic next; /* Next export for the same destination */
struct rte_storage *new, *new_best, *old, *old_best;
+ u64 seq; /* Sequential ID (table-local) of the pending export */
};
struct rt_export_request {
@@ -333,7 +348,6 @@ struct rt_export_hook {
rtable *table; /* The connected table */
pool *pool;
- linpool *lp;
struct rt_export_request *req; /* The requestor */
@@ -345,10 +359,15 @@ struct rt_export_hook {
struct fib_iterator feed_fit; /* Routing table iterator used during feeding */
+ struct bmap seq_map; /* Keep track which exports were already procesed */
+
+ struct rt_pending_export * _Atomic last_export;/* Last export processed */
+ struct rt_pending_export *rpe_next; /* Next pending export to process */
+
btime last_state_change; /* Time of last state transition */
u8 refeed_pending; /* Refeeding and another refeed is scheduled */
- u8 export_state; /* Route export state (TES_*, see below) */
+ _Atomic u8 export_state; /* Route export state (TES_*, see below) */
struct event *event; /* Event running all the export operations */
@@ -384,6 +403,16 @@ static inline u8 rt_export_get_state(struct rt_export_hook *eh) { return eh ? eh
void rte_import(struct rt_import_request *req, const net_addr *net, rte *new, struct rte_src *src);
+/* Get next rpe. If src is given, it must match. */
+struct rt_pending_export *rpe_next(struct rt_pending_export *rpe, struct rte_src *src);
+
+/* Mark the pending export processed */
+void rpe_mark_seen(struct rt_export_hook *hook, struct rt_pending_export *rpe);
+
+/* Get pending export seen status */
+int rpe_get_seen(struct rt_export_hook *hook, struct rt_pending_export *rpe);
+
+
/* Types of route announcement, also used as flags */
#define RA_UNDEF 0 /* Undefined RA type */
#define RA_OPTIMAL 1 /* Announcement of optimal route change */