rtsig            1155 event/ngx_event.c     ngx_uint_t           rtsig;
rtsig            1182 event/ngx_event.c         rtsig = 1;
rtsig            1185 event/ngx_event.c         rtsig = 0;
rtsig            1249 event/ngx_event.c     if (!rtsig) {