From d1660fd3f38c29739ff36c86c6010d65fb90c608 Mon Sep 17 00:00:00 2001
From: Ondrej Filip <feela@network.cz>
Date: Wed, 31 May 2000 14:21:56 +0000
Subject: [PATCH] Sort cleanup in aging.

---
 proto/ospf/lsalib.c   | 41 ++++++++++++++++++++++++-----------------
 proto/ospf/lsalib.h   |  3 +--
 proto/ospf/ospf.c     |  4 +---
 proto/ospf/ospf.h     |  1 +
 proto/ospf/rt.c       |  4 ++--
 proto/ospf/topology.c |  1 +
 6 files changed, 30 insertions(+), 24 deletions(-)

diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
index d462bbd0..62ea0b86 100644
--- a/proto/ospf/lsalib.c
+++ b/proto/ospf/lsalib.c
@@ -16,28 +16,35 @@ flush_lsa(struct top_hash_entry *en, struct ospf_area *oa)
 }
 
 void
-ospf_age(struct top_hash_entry *en, bird_clock_t delta, int flush,
-  struct ospf_area *oa)
+ospf_age(struct ospf_area *oa)
 {
   struct proto *p=&oa->po->proto;
   struct proto_ospf *po=(struct proto_ospf *)p;
-  if(en->lsa.age==LSA_MAXAGE)
+  struct top_hash_entry *en,*nxt;
+  int flush=can_flush_lsa(oa);
+  bird_clock_t delta=now-oa->lage;
+
+  WALK_SLIST_DELSAFE(en,nxt,oa->lsal)
   {
-    if(flush) flush_lsa(en,oa);
-    return;
-  }
-  if((en->lsa.rt==p->cf->global->router_id)&&(en->lsa.age>LSREFRESHTIME))
-  {
-     en->lsa.sn++;
-     en->lsa.age=0;
-     flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1);
-     return;
-  }
-  if((en->lsa.age+=delta)>LSA_MAXAGE)
-  {
-    if(flush) flush_lsa(en,oa);
-    else en->lsa.age=LSA_MAXAGE;
+    if(en->lsa.age==LSA_MAXAGE)
+    {
+      if(flush) flush_lsa(en,oa);
+      return;
+    }
+    if((en->lsa.rt==p->cf->global->router_id)&&(en->lsa.age>LSREFRESHTIME))
+    {
+       en->lsa.sn++;
+       en->lsa.age=0;
+       flood_lsa(NULL,NULL,&en->lsa,po,NULL,oa,1);
+       return;
+    }
+    if((en->lsa.age+=delta)>LSA_MAXAGE)
+    {
+      if(flush) flush_lsa(en,oa);
+      else en->lsa.age=LSA_MAXAGE;
+    }
   }
+  oa->lage=now;
 }
 
 void
diff --git a/proto/ospf/lsalib.h b/proto/ospf/lsalib.h
index f9cc8f39..8dc1561b 100644
--- a/proto/ospf/lsalib.h
+++ b/proto/ospf/lsalib.h
@@ -23,7 +23,6 @@ u16 lsasum_check(struct ospf_lsa_header *h,void *body,struct proto_ospf *po);
 int lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2);
 struct top_hash_entry *lsa_install_new(struct ospf_lsa_header *lsa, void *body,
   struct ospf_area *oa, struct proto *p);
-void ospf_age(struct top_hash_entry *en, bird_clock_t delta, int flush,
-  struct ospf_area *oa);
+void ospf_age(struct ospf_area *oa);
 
 #endif /* _BIRD_OSPF_LSALIB_H_ */
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index 701c3230..bc9a636b 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -162,11 +162,9 @@ area_disp(timer *timer)
 {
   struct ospf_area *oa=timer->data;
   struct top_hash_entry *en,*nxt;
-  int flush=0;
 
   /* First of all try to age LSA DB */
-  flush=can_flush_lsa(oa);
-  WALK_SLIST_DELSAFE(en,nxt,oa->lsal) ospf_age(en,DISPTICK,flush,oa);
+  ospf_age(oa);
 
   /* Now try to originage rt_lsa */
   if(oa->origrt) originate_rt_lsa(oa);
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 81760355..087e6e79 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -325,6 +325,7 @@ struct ospf_area {
   node n;
   u32 areaid;
   timer *disp_timer;		/* Area's dispatcher hear beat */
+  bird_clock_t lage;		/* Time of last aging */
   int calcrt;			/* Routing table calculation scheduled? */
   int origrt;			/* Rt lsa origination scheduled? */
   struct top_graph *gr;		/* LSA graph */
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 27c6efb6..d13c9e59 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -33,7 +33,7 @@ init_efib(struct fib_node *fn)
 void
 ospf_rt_spfa(struct ospf_area *oa)
 {
-  struct top_hash_entry *en, *nx;
+  struct top_hash_entry *en;
   u32 i,*rts;
   struct ospf_lsa_rt *rt;
   struct ospf_lsa_rt_link *rtl,*rr;
@@ -50,7 +50,7 @@ ospf_rt_spfa(struct ospf_area *oa)
   debug("%s: Starting routing table calculation for area %I\n",p->name,
     oa->areaid);
 
-  WALK_SLIST_DELSAFE(SNODE en, nx, oa->lsal)
+  WALK_SLIST(SNODE en, oa->lsal)
   {
     en->color=OUTSPF;
     en->dist=LSINFINITY;
diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 901f4ae7..6dd4495e 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -184,6 +184,7 @@ addifa_rtlsa(struct ospf_iface *ifa)
     oa->disp_timer->randomize=0;
     oa->disp_timer->hook=area_disp;
     oa->disp_timer->recurrent=DISPTICK;
+    oa->lage=now;
     tm_start(oa->disp_timer,DISPTICK);
     oa->calcrt=1;
     oa->origrt=0;