static long
vrrp_timer_fd(const int fd)
{
timeval_t timer, vrrp_timer;
long vrrp_long;
timer = vrrp_compute_timer(fd);
vrrp_timer = timer_sub(timer, time_now);
vrrp_long = timer_long(vrrp_timer);
return (vrrp_long < 0) ? TIMER_MAX_SEC : vrrp_long;
}
enum connect_result
tcp_socket_state(int fd, thread_t * thread, char *ipaddress, uint16_t addr_port,
int (*func) (thread_t *))
{
int status;
socklen_t slen;
int ret = 0;
timeval_t timer_min;
/* Handle connection timeout */
if (thread->type == THREAD_WRITE_TIMEOUT) {
DBG("TCP connection timeout to [%s]:%d.\n",
ipaddress, ntohs(addr_port));
close(thread->u.fd);
return connect_timeout;
}
/* Check file descriptor */
slen = sizeof (status);
if (getsockopt
(thread->u.fd, SOL_SOCKET, SO_ERROR, (void *) &status, &slen) < 0)
ret = errno;
/* Connection failed !!! */
if (ret) {
DBG("TCP connection failed to [%s]:%d.\n",
ipaddress, ntohs(addr_port));
close(thread->u.fd);
return connect_error;
}
/* If status = 0, TCP connection to remote host is established.
* Otherwise register checker thread to handle connection in progress,
* and other error code until connection is established.
* Recompute the write timeout (or pending connection).
*/
if (status != 0) {
DBG("TCP connection to [%s]:%d still IN_PROGRESS.\n",
ipaddress, ntohs(addr_port));
timer_min = timer_sub_now(thread->sands);
thread_add_write(thread->master, func, THREAD_ARG(thread)
, thread->u.fd, timer_long(timer_min));
return connect_in_progress;
}
return connect_success;
}