/* * BIRD Library -- Event Processing * * (c) 1999 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ #include "nest/bird.h" #include "lib/event.h" event_list global_event_list; inline void ev_postpone(event *e) { if (e->n.next) { rem_node(&e->n); e->n.next = NULL; } } static void ev_dump(resource *r) { event *e = (event *) r; debug("(code %p, data %p, %s)\n", e->hook, e->data, e->n.next ? "scheduled" : "inactive"); } static struct resclass ev_class = { "Event", sizeof(event), (void (*)(resource *)) ev_postpone, ev_dump }; event * ev_new(pool *p) { event *e = ralloc(p, &ev_class); e->hook = NULL; e->data = NULL; e->n.next = NULL; return e; } inline void ev_run(event *e) { e->hook(e->data); ev_postpone(e); } inline void ev_enqueue(event_list *l, event *e) { if (e->n.next) rem_node(&e->n); add_tail(l, &e->n); } void ev_schedule(event *e) { ev_enqueue(&global_event_list, e); } void ev_run_list(event_list *l) { for(;;) { node *n = HEAD(*l); event *e; if (!n->next) break; e = SKIP_BACK(event, n, n); ev_run(e); } }