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Minimalist mainloop implementation

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This commit is contained in:
Maria Matejka 2024-09-10 11:25:59 +02:00
parent 20d8eaa7d3
commit 96f357c5d6
2 changed files with 40 additions and 0 deletions
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2
lib/io-loop.h
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@ -82,5 +82,7 @@ struct thread_config {
void bird_thread_commit(struct thread_config *new);
/* Minimalist main */
void birdloop_minimalist_main(void) NORET;
#endif /* _BIRD_IO_LOOP_H_ */

38
sysdep/unix/io-loop.c
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@ -1594,3 +1594,41 @@ ev_send_defer(event *e)
else
ev_send(&this_birdloop->defer_list, e);
}
/*
* Minimalist mainloop with no sockets
*/
void
birdloop_minimalist_main(void)
{
while (1)
{
times_update();
ev_run_list(&global_event_list);
ev_run_list(&global_work_list);
ev_run_list(&main_birdloop.event_list);
timers_fire(&main_birdloop.time);
bool events =
!ev_list_empty(&global_event_list) ||
!ev_list_empty(&global_work_list) ||
!ev_list_empty(&main_birdloop.event_list);
int poll_tout = (events ? 0 : 3000); /* Time in milliseconds */
timer *t;
if (t = timers_first(&main_birdloop.time))
{
times_update();
int timeout = (tm_remains(t) TO_MS) + 1;
poll_tout = MIN(poll_tout, timeout);
}
struct pollfd pfd = {
.fd = main_birdloop.thread->wakeup.fd[0],
.events = POLLIN,
};
poll(&pfd, 1, poll_tout);
}
}