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First attempt on dynamic reconfiguration. There are still lots of bugs

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and problems to solve, but the hardest part works.
This commit is contained in:
Martin Mares
2000-01-16 16:44:50 +00:00
parent 394aec8fdd
commit 50fe90edf3
13 changed files with 434 additions and 90 deletions
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67
nest/rt-table.c
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@@ -1,7 +1,7 @@
/*
* BIRD -- Routing Table
*
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
@@ -480,19 +480,70 @@ rt_preconfig(struct config *c)
}
void
rt_commit(struct config *c)
rt_lock_table(rtable *r)
{
struct rtable_config *r;
r->use_count++;
}
WALK_LIST(r, c->tables)
void
rt_unlock_table(rtable *r)
{
if (!--r->use_count && r->deleted)
{
rtable *t = mb_alloc(rt_table_pool, sizeof(struct rtable));
rt_setup(rt_table_pool, t, r->name);
add_tail(&routing_tables, &t->n);
r->table = t;
struct config *conf = r->deleted;
DBG("Deleting routing table %s\n", r->name);
rem_node(&r->n);
fib_free(&r->fib);
mb_free(r);
config_del_obstacle(conf);
}
}
void
rt_commit(struct config *new, struct config *old)
{
struct rtable_config *o, *r;
DBG("rt_commit:\n");
if (old)
{
WALK_LIST(o, old->tables)
{
rtable *ot = o->table;
if (!ot->deleted)
{
struct symbol *sym = cf_find_symbol(o->name);
if (sym && sym->class == SYM_TABLE)
{
DBG("\t%s: same\n", o->name);
r = sym->def;
r->table = ot;
ot->name = r->name;
}
else
{
DBG("\t%s: deleted", o->name);
ot->deleted = old;
config_add_obstacle(old);
rt_lock_table(ot);
rt_unlock_table(ot);
}
}
}
}
WALK_LIST(r, new->tables)
if (!r->table)
{
rtable *t = mb_alloc(rt_table_pool, sizeof(struct rtable));
DBG("\t%s: created\n", r->name);
rt_setup(rt_table_pool, t, r->name);
add_tail(&routing_tables, &t->n);
r->table = t;
}
DBG("\tdone\n");
}
/*
* CLI commands
*/