static int lcb_io_update_timer(struct lcb_io_opt_st *iops,
void *timer,
lcb_uint32_t usec,
void *cb_data,
void (*handler)(lcb_socket_t sock,
short which,
void *cb_data))
{
short flags = EV_TIMEOUT | EV_PERSIST;
struct timeval tmo;
if (flags == event_get_events(timer) &&
handler == event_get_callback(timer)) {
/* no change! */
return 0;
}
if (event_pending(timer, EV_TIMEOUT, 0)) {
event_del(timer);
}
event_assign(timer, ((struct libevent_cookie *)iops->v.v2.cookie)->base, -1, flags, handler, cb_data);
tmo.tv_sec = usec / 1000000;
tmo.tv_usec = usec % 1000000;
return event_add(timer, &tmo);
}
int
main() {
pipe(pp);
struct event_base *base = event_base_new();
evr = event_new(base, pp[0], EV_READ, read_cb, NULL);
evw = event_new(base, pp[1], EV_WRITE | EV_TIMEOUT, write_cb, NULL);
event_add(evw, NULL);
event_add(evr, NULL);
struct event_base *outbase;
int fdout;
event_get_assignment(evw, NULL, &fdout, NULL, NULL, NULL); /* Note fdout. */
outbase = event_get_base(evw); /* outbase == base */
event_callback_fn cb = event_get_callback(evw);
assert(write_cb == cb);
assert(NULL == event_get_callback_arg(evw));
assert(EV_WRITE|EV_TIMEOUT == event_get_events(evw));
assert(pp[1] == event_get_fd(evw));
assert(event_initialized(evw) == 1);
test_num_events();
event_base_dispatch(base);
return 0;
}
static int lcb_io_update_event(struct lcb_io_opt_st *iops,
lcb_socket_t sock,
void *event,
short flags,
void *cb_data,
void (*handler)(lcb_socket_t sock,
short which,
void *cb_data))
{
flags |= EV_PERSIST;
if (flags == event_get_events(event) &&
handler == event_get_callback(event)) {
/* no change! */
return 0;
}
if (event_pending(event, EV_READ | EV_WRITE, 0)) {
event_del(event);
}
event_assign(event, ((struct libevent_cookie *)iops->v.v2.cookie)->base, sock, flags, handler, cb_data);
return event_add(event, NULL);
}
int
rs_packet_send (struct rs_packet *pkt, void *user_data)
{
struct rs_connection *conn = NULL;
int err = 0;
assert (pkt);
assert (pkt->conn);
conn = pkt->conn;
if (_conn_is_open_p (conn))
packet_do_send (pkt);
else
if (_conn_open (conn, pkt))
return -1;
assert (conn->evb);
assert (conn->active_peer);
assert (conn->fd >= 0);
conn->user_data = user_data;
if (conn->bev) /* TCP */
{
bufferevent_setcb (conn->bev, NULL, tcp_write_cb, tcp_event_cb, pkt);
bufferevent_enable (conn->bev, EV_WRITE);
}
else /* UDP */
{
event_assign (conn->wev, conn->evb, event_get_fd (conn->wev),
EV_WRITE, event_get_callback (conn->wev), pkt);
err = event_add (conn->wev, NULL);
if (err < 0)
return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"event_add: %s",
evutil_gai_strerror (err));
}
/* Do dispatch, unless the user wants to do it herself. */
if (!conn_user_dispatch_p (conn))
{
conn->callbacks.sent_cb = _wcb;
conn->user_data = pkt;
rs_debug (("%s: entering event loop\n", __func__));
err = event_base_dispatch (conn->evb);
if (err < 0)
return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"event_base_dispatch: %s",
evutil_gai_strerror (err));
rs_debug (("%s: event loop done\n", __func__));
conn->callbacks.sent_cb = NULL;
conn->user_data = NULL;
if ((pkt->flags & RS_PACKET_SENT) == 0)
{
assert (rs_err_conn_peek_code (conn));
return rs_err_conn_peek_code (conn);
}
}
return RSE_OK;
}
