in src/transport/xqc_engine.c [234:242]
int xqc_engine_conn_pq_operator(xqc_pq_t *pq, xqc_pq_element_t *e)
{
xqc_connection_t **conn;
conn = (xqc_connection_t**)e->data;
if (conn && *conn) {
(*conn)->wakeup_pq_index = xqc_pq_element_index(pq, e);
}
return XQC_OK;
}