void
cometd_handle_advice(const cometd* h, cometd_advice* advice)
{
if (advice == NULL) return;
if (cometd_advice_is_handshake(advice))
cometd_handshake(h, NULL);
}
gboolean cometd_should_handshake(const cometd* h)
{
cometd_conn* conn = h->conn;
if (cometd_conn_is_state(conn, COMETD_HANDSHAKE_SUCCESS | COMETD_CONNECTED))
return FALSE;
return conn->advice == NULL || cometd_advice_is_handshake(conn->advice);
}
long
cometd_get_backoff(const cometd* h, long attempt)
{
cometd_config* config = h->config;
cometd_advice* advice = h->conn->advice;
long backoff = config->backoff_increment;
if (advice == NULL)
backoff = cometd_impl_compute_backoff(config, attempt);
else if (cometd_impl_should_backoff(advice, attempt))
backoff = cometd_impl_compute_backoff(config, attempt-1); // offset attempt
else if (cometd_advice_is_handshake(advice) || cometd_advice_is_retry(advice))
backoff = advice->interval;
else if (cometd_advice_is_none(advice))
backoff = -1;
return backoff;
}
