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Code Releases Activity

Fix for table hostcache corking and shutdown race conditions

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This commit is contained in:
Maria Matejka 2022-09-14 10:25:09 +02:00
parent 12fd6c989a
commit cf38092b2d
1 changed files with 11 additions and 1 deletions
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10
nest/rt-table.c
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@ -4008,7 +4008,11 @@ rt_commit(struct config *new, struct config *old)
rt_lock_table(tab);
if (tab->hostcache)
{
rt_stop_export(&tab->hostcache->req, NULL);
if (ev_get_list(&tab->hostcache->update) == &rt_cork.queue)
ev_postpone(&tab->hostcache->update);
}
rt_unlock_table(tab);
@ -4392,6 +4396,8 @@ hc_notify_export_one(struct rt_export_request *req, const net_addr *net, struct
/* Yes, something has actually changed. Do the hostcache update. */
if (o != RTE_VALID_OR_NULL(new_best))
RT_LOCKED((rtable *) hc->update.data, tab)
if ((atomic_load_explicit(&req->hook->export_state, memory_order_acquire) == TES_READY)
&& !ev_active(&hc->update))
ev_send_loop(tab->loop, &hc->update);
}
@ -4555,6 +4561,10 @@ rt_update_hostcache(void *data)
struct hostcache *hc = tab->hostcache;
/* Shutdown shortcut */
if (!hc->req.hook)
RT_RETURN(tab);
if (rt_cork_check(&hc->update))
{
rt_trace(tab, D_STATES, "Hostcache update corked");