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Code Releases Activity

Fixed export hook stopping in some corner cases.

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Notably, it's in a corked state and also when refeed is pending.
This commit is contained in:
Maria Matejka 2022-10-06 17:51:32 +02:00
parent 6abef2b20b
commit 2ae32374dd
2 changed files with 21 additions and 9 deletions
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7
nest/proto.c
View File

@ -739,7 +739,9 @@ channel_do_pause(struct channel *c)
}
/* Stop export */
if (c->out_req.hook)
if (c->refeed_pending)
c->refeed_pending = 0;
else if (c->out_req.hook)
rt_stop_export(&c->out_req, channel_export_stopped);
channel_roa_unsubscribe_all(c);
@ -863,6 +865,9 @@ channel_request_feeding(struct channel *c)
{
ASSERT(c->out_req.hook);
if (c->refeed_pending)
return;
c->refeed_pending = 1;
rt_stop_export(&c->out_req, channel_export_stopped);
}

23
nest/rt-table.c
View File

@ -2073,8 +2073,11 @@ rt_table_export_uncork(void *_hook)
{
case TES_HUNGRY:
RT_LOCKED(RT_PUB(SKIP_BACK(struct rtable_private, exporter, hook->table)), tab)
rt_table_export_start_feed(tab, hook);
break;
if ((state = atomic_load_explicit(&hook->h.export_state, memory_order_relaxed)) == TES_HUNGRY)
rt_table_export_start_feed(tab, hook);
if (state != TES_STOP)
break;
/* fall through */
case TES_STOP:
rt_stop_export_common(&hook->h);
break;
@ -2181,19 +2184,19 @@ rt_alloc_export(struct rt_exporter *re, uint size)
hook->pool = p;
hook->table = re;
hook->n = (node) {};
add_tail(&re->hooks, &hook->n);
return hook;
}
void
rt_init_export(struct rt_exporter *re, struct rt_export_hook *hook)
rt_init_export(struct rt_exporter *re UNUSED, struct rt_export_hook *hook)
{
hook->event.data = hook;
bmap_init(&hook->seq_map, hook->pool, 1024);
hook->n = (node) {};
add_tail(&re->hooks, &hook->n);
/* Regular export */
rt_set_export_state(hook, TES_FEEDING);
rt_send_export_event(hook);
@ -2208,6 +2211,7 @@ rt_table_export_stop_locked(struct rt_export_hook *hh)
switch (atomic_load_explicit(&hh->export_state, memory_order_relaxed))
{
case TES_HUNGRY:
rt_trace(tab, D_EVENTS, "Stopping export hook %s must wait for uncorking; %p", hook->h.req->name, hook->h.n.next);
return 0;
case TES_FEEDING:
switch (hh->req->addr_mode)
@ -2228,6 +2232,8 @@ rt_table_export_stop_locked(struct rt_export_hook *hh)
}
}
rt_trace(tab, D_EVENTS, "Stopping export hook %s right now", hook->h.req->name);
return 1;
}
@ -4001,7 +4007,7 @@ rt_check_cork_low(struct rtable_private *tab)
if (!tab->cork_active)
return;
if (!tab->exporter.first || (tab->exporter.first->seq + tab->cork_threshold.low > tab->exporter.next_seq))
if (tab->deleted || !tab->exporter.first || (tab->exporter.first->seq + tab->cork_threshold.low > tab->exporter.next_seq))
{
tab->cork_active = 0;
rt_cork_release();
@ -4013,7 +4019,7 @@ rt_check_cork_low(struct rtable_private *tab)
static void
rt_check_cork_high(struct rtable_private *tab)
{
if (!tab->cork_active && tab->exporter.first && (tab->exporter.first->seq + tab->cork_threshold.high <= tab->exporter.next_seq))
if (!tab->deleted && !tab->cork_active && tab->exporter.first && (tab->exporter.first->seq + tab->cork_threshold.high <= tab->exporter.next_seq))
{
tab->cork_active = 1;
rt_cork_acquire();
@ -4111,6 +4117,7 @@ rt_commit(struct config *new, struct config *old)
ev_postpone(&tab->hostcache->update);
}
rt_check_cork_low(tab);
rt_unlock_table(tab);
RT_UNLOCK(tab);