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bgpd: use stop event instead of pthread_kill()

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When terminating I/O thread, just schedule an event to do any necessary
cleanup and gracefully exit instead of using a signal.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2017-06-09 18:10:59 +00:00
parent 51abb4b49f
commit 48e5262f64
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GPG Key ID: DAF48E0F57E0834F
1 changed files with 14 additions and 5 deletions
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19
bgpd/bgp_io.c
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@ -84,14 +84,23 @@ void *bgp_io_start(void *arg)
return NULL;
}
static int bgp_io_finish(struct thread *thread)
{
/* if we ever have resources to clean up, that code should be placed in
* a pthread_cleanup handler and called from here */
/* set stop flag */
atomic_store_explicit(&bgp_io_thread_run, false, memory_order_relaxed);
return 0;
}
int bgp_io_stop(void **result, struct frr_pthread *fpt)
{
/* schedule stop job */
thread_add_event(fpt->master, &bgp_io_finish, NULL, 0, NULL);
bgp_io_thread_run = false;
/* let the loop break */
fpt->master->spin = false;
/* break poll */
pthread_kill(fpt->thread, SIGINT);
/* join */
pthread_join(fpt->thread, result);
return 0;