int
sel_select(selector_t *sel,
sel_send_sig_cb send_sig,
long thread_id,
void *cb_data,
struct timeval *timeout)
{
int err;
struct timeval loc_timeout;
sel_wait_list_t wait_entry;
if (sel->have_timer_lock)
sel->os_hnd->lock(sel->os_hnd, sel->timer_lock);
process_timers(sel, (struct timeval *)(&loc_timeout));
if (timeout) {
if (cmp_timeval((struct timeval *)(&loc_timeout), timeout) >= 0)
memcpy(&loc_timeout, timeout, sizeof(loc_timeout));
}
add_sel_wait_list(sel, &wait_entry, send_sig, cb_data, thread_id,
&loc_timeout);
if (sel->have_timer_lock)
sel->os_hnd->unlock(sel->os_hnd, sel->timer_lock);
err = process_fds(sel, send_sig, thread_id, cb_data, &loc_timeout);
if (sel->have_timer_lock)
sel->os_hnd->lock(sel->os_hnd, sel->timer_lock);
remove_sel_wait_list(sel, &wait_entry);
if (sel->have_timer_lock)
sel->os_hnd->unlock(sel->os_hnd, sel->timer_lock);
return err;
}
int net_fdset_process(t_net_fdset *set, cb_net_fdset check)
{
fd_set fdsets[2];
int res;
if (!set || !check)
return (-1);
init(set, fdsets, check);
res = select(set->fd_max, &fdsets[0], &fdsets[1], 0, 0);
if (res == -1)
{
dprintf(2, "select(): %s\n", strerror(errno));
return (-1);
}
if (process_fds(set, res, fdsets) == -1)
return (-1);
return (0);
}
/* The main loop for the program. This will select on the various
sets, then scan for any available I/O to process. It also monitors
the time and call the timeout handlers periodically. */
int
sel_select_loop(selector_t *sel,
sel_send_sig_cb send_sig,
long thread_id,
void *cb_data)
{
int err;
sel_wait_list_t wait_entry;
struct timeval loc_timeout;
for (;;) {
if (sel->have_timer_lock)
sel->os_hnd->lock(sel->os_hnd, sel->timer_lock);
process_timers(sel, &loc_timeout);
add_sel_wait_list(sel, &wait_entry, send_sig, cb_data, thread_id,
&loc_timeout);
if (sel->have_timer_lock)
sel->os_hnd->unlock(sel->os_hnd, sel->timer_lock);
err = process_fds(sel, send_sig, thread_id, cb_data, &loc_timeout);
if (sel->have_timer_lock)
sel->os_hnd->lock(sel->os_hnd, sel->timer_lock);
remove_sel_wait_list(sel, &wait_entry);
if (sel->have_timer_lock)
sel->os_hnd->unlock(sel->os_hnd, sel->timer_lock);
if ((err < 0) && (errno != EINTR)) {
err = errno;
/* An error occurred. */
/* An error is bad, we need to abort. */
syslog(LOG_ERR, "select_loop() - select: %m");
return err;
}
}
}