overflow 63 event/modules/ngx_rtsig_module.c static ngx_uint_t overflow, overflow_current; overflow 359 event/modules/ngx_rtsig_module.c if (overflow && (ngx_uint_t) si.si_fd > overflow_current) { overflow 447 event/modules/ngx_rtsig_module.c overflow = 1; overflow 680 event/modules/ngx_rtsig_module.c overflow = 0;