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Fixed loop movement to not collide on LTT_MOVE

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This commit is contained in:
Maria Matejka 2023-05-05 16:08:50 +02:00
parent e0c09e6bee
commit 62432affd9
1 changed files with 16 additions and 11 deletions
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27
sysdep/unix/io-loop.c
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@ -355,7 +355,7 @@ birdloop_try_ping(struct birdloop *loop, u32 ltt)
return 1;
}
/* Do the real ping */
/* Do the real ping of Meta or Main */
LOOP_TRACE(loop, "sending pipe ping");
wakeup_do_kick(loop->thread);
return 0;
@ -617,6 +617,7 @@ birdloop_set_thread(struct birdloop *loop, struct bird_thread *thr, struct birdl
u32 ltt = atomic_fetch_or_explicit(&loop->thread_transition, LTT_MOVE, memory_order_acq_rel);
ASSERT_DIE((ltt & LTT_MOVE) == 0);
/* Wait until all previously started pings end */
while (ltt & LTT_PING)
{
birdloop_yield();
@ -625,9 +626,22 @@ birdloop_set_thread(struct birdloop *loop, struct bird_thread *thr, struct birdl
}
/* Now we are free of running pings */
if (!thr)
{
/* Unschedule from Meta */
ev_postpone(&loop->event);
tm_stop(&loop->timer);
/* Request local socket reload */
this_thread->sock_changed = 1;
}
/* Update the thread value */
loop->thread = thr;
/* Allow pings */
atomic_fetch_and_explicit(&loop->thread_transition, ~LTT_MOVE, memory_order_acq_rel);
/* Put into appropriate lists */
if (thr)
{
@ -637,21 +651,11 @@ birdloop_set_thread(struct birdloop *loop, struct bird_thread *thr, struct birdl
}
else
{
/* Unschedule from Meta */
ev_postpone(&loop->event);
tm_stop(&loop->timer);
/* Request local socket reload */
this_thread->sock_changed = 1;
/* Put into pickup list */
LOCK_DOMAIN(resource, group->domain);
add_tail(&group->loops, &loop->n);
UNLOCK_DOMAIN(resource, group->domain);
}
/* Allow pings */
atomic_fetch_and_explicit(&loop->thread_transition, ~LTT_MOVE, memory_order_acq_rel);
}
static void
@ -878,6 +882,7 @@ poll_retry:;
wakeup_drain(thr);
}
/* Unset ping information for Meta */
atomic_fetch_and_explicit(&thr->meta->thread_transition, ~LTT_PING, memory_order_acq_rel);
/* Schedule loops with active sockets */