void *poll_thread(void *threadarg)
{
struct epoll_event events;
char buf;
unsigned int gpio;
int n;
thread_running = 1;
while (thread_running)
{
if ((n = epoll_wait(epfd, &events, 1, -1)) == -1)
{
thread_running = 0;
pthread_exit(NULL);
}
if (n > 0) {
lseek(events.data.fd, 0, SEEK_SET);
if (read(events.data.fd, &buf, 1) != 1)
{
thread_running = 0;
pthread_exit(NULL);
}
gpio = gpio_lookup(events.data.fd);
if (gpio_initial(gpio)) { // ignore first epoll trigger
set_initial_false(gpio);
} else {
event_occurred[gpio] = 1;
run_callbacks(gpio);
}
}
}
thread_running = 0;
pthread_exit(NULL);
}
static void add_to_cache(AvahiWideAreaLookupEngine *e, AvahiRecord *r) {
AvahiWideAreaCacheEntry *c;
int is_new;
assert(e);
assert(r);
if ((c = find_record_in_cache(e, r))) {
is_new = 0;
/* Update the existing entry */
avahi_record_unref(c->record);
} else {
AvahiWideAreaCacheEntry *t;
is_new = 1;
/* Enforce cache size */
if (e->cache_n_entries >= CACHE_ENTRIES_MAX)
/* Eventually we should improve the caching algorithm here */
goto finish;
c = avahi_new(AvahiWideAreaCacheEntry, 1);
c->engine = e;
c->time_event = NULL;
AVAHI_LLIST_PREPEND(AvahiWideAreaCacheEntry, cache, e->cache, c);
/* Add the new entry to the cache entry hash table */
t = avahi_hashmap_lookup(e->cache_by_key, r->key);
AVAHI_LLIST_PREPEND(AvahiWideAreaCacheEntry, by_key, t, c);
avahi_hashmap_replace(e->cache_by_key, avahi_key_ref(r->key), t);
e->cache_n_entries ++;
}
c->record = avahi_record_ref(r);
gettimeofday(&c->timestamp, NULL);
c->expiry = c->timestamp;
avahi_timeval_add(&c->expiry, r->ttl * 1000000);
if (c->time_event)
avahi_time_event_update(c->time_event, &c->expiry);
else
c->time_event = avahi_time_event_new(e->server->time_event_queue, &c->expiry, expiry_event, c);
finish:
if (is_new)
run_callbacks(e, r);
}
void *poll_thread(void *threadarg)
{
struct epoll_event events;
char buf;
struct timeval tv_timenow;
unsigned long long timenow;
struct gpios *g;
int n;
thread_running = 1;
while (thread_running) {
if ((n = epoll_wait(epfd_thread, &events, 1, -1)) == -1) {
thread_running = 0;
pthread_exit(NULL);
}
if (n > 0) {
lseek(events.data.fd, 0, SEEK_SET);
if (read(events.data.fd, &buf, 1) != 1) {
thread_running = 0;
pthread_exit(NULL);
}
g = get_gpio_from_value_fd(events.data.fd);
if (g->initial_thread) { // ignore first epoll trigger
g->initial_thread = 0;
} else {
gettimeofday(&tv_timenow, NULL);
timenow = tv_timenow.tv_sec*1E6 + tv_timenow.tv_usec;
if (g->bouncetime == -666 || timenow - g->lastcall > g->bouncetime*1000 || g->lastcall == 0 || g->lastcall > timenow) {
g->lastcall = timenow;
event_occurred[g->gpio] = 1;
run_callbacks(g->gpio);
}
}
}
}
thread_running = 0;
pthread_exit(NULL);
}
