pn                170 event/modules/ngx_eventport_module.c     port_notify_t          pn;
pn                202 event/modules/ngx_eventport_module.c         ngx_memzero(&pn, sizeof(port_notify_t));
pn                203 event/modules/ngx_eventport_module.c         pn.portnfy_port = ep;
pn                208 event/modules/ngx_eventport_module.c         sev.sigev_value.sival_ptr = &pn;