Killed protocol->priority. Protocol startup should be clean and hack-free now.

It seems everything still works (except for disable/enable/restart which hangs
sometimes, but it's another story).

TODO

@@ -27,10 +27,9 @@ Core
 - config: when parsing prefix, check zero bits
 - config: useless rules when protocols disabled
 - config: better datetime format
+- config: long disable/enable/restart sequences hang
 
 - krt: rescan interfaces when route addition fails?
-- krt: does PERSIST mode have any sense if kernel syncer is shut down as last?
-- krt: check behaviour wrt. reconfiguration of routing tables
 
 - tagging of external routes?
 

nest/proto.c

@@ -49,17 +49,7 @@ static void proto_rethink_goal(struct proto *p);
 static void
 proto_enqueue(list *l, struct proto *p)
 {
-  int pri = p->proto->priority;
+  add_tail(l, &p->n);
-
-  if (!pri)
-    add_tail(l, &p->n);
-  else
-    {
-      struct proto *q = HEAD(*l);
-      while (q->n.next && q->proto->priority >= pri)
-	q = (struct proto *) q->n.next;
-      insert_node(&p->n, q->n.prev);
-    }
   p->last_state_change = now;
 }
 
@@ -324,7 +314,7 @@ protos_dump_all(void)
 
   WALK_LIST(p, active_proto_list)
     {
-      debug("  protocol %s (pri=%d): state %s/%s\n", p->name, p->proto->priority,
+      debug("  protocol %s state %s/%s\n", p->name,
 	    p_states[p->proto_state], c_states[p->core_state]);
       if (p->in_filter)
 	debug("\tInput filter: %s\n", filter_name(p->in_filter));
@@ -424,13 +414,6 @@ proto_notify_state(struct proto *p, unsigned ps)
       ASSERT(ops == PS_DOWN || ops == PS_START);
       ASSERT(cs == FS_HUNGRY);
       DBG("%s: Scheduling meal\n", p->name);
-      if (p->proto->priority)		/* FIXME: Terrible hack to get synchronous device/kernel startup! */
-	{
-	  p->proto_state = ps;
-	  p->core_state = FS_FEEDING;
-	  proto_feed(p);
-	  return;
-	}
       cs = FS_FEEDING;
       p->attn->hook = proto_feed;
       ev_schedule(p->attn);

nest/protocol.h

@@ -35,7 +35,6 @@ struct protocol {
   char *name;
   char *template;			/* Template for automatic generation of names */
   unsigned debug;			/* Default debugging flags */
-  int priority;				/* Protocol priority (usually 0) */
   int name_counter;			/* Counter for automatic name generation */
 
   void (*preconfig)(struct protocol *, struct config *);	/* Just before configuring */

nest/rt-dev.c

@@ -89,7 +89,6 @@ dev_reconfigure(struct proto *p, struct proto_config *new)
 struct protocol proto_device = {
   name:		"Direct",
   template:	"direct%d",
-  priority:	90,
   init:		dev_init,
   reconfigure:	dev_reconfigure
 };

sysdep/unix/krt.c

@@ -161,7 +161,6 @@ kif_reconfigure(struct proto *p, struct proto_config *new)
 struct protocol proto_unix_iface = {
   name:		"Device",
   template:	"device%d",
-  priority:	100,
   preconfig:	kif_preconfig,
   init:		kif_init,
   start:	kif_start,
@@ -801,7 +800,6 @@ krt_reconfigure(struct proto *p, struct proto_config *new)
 struct protocol proto_unix_kernel = {
   name:		"Kernel",
   template:	"kernel%d",
-  priority:	80,
   preconfig:	krt_preconfig,
   postconfig:	krt_postconfig,
   init:		krt_init,