SIGIO             154 event/modules/ngx_rtsig_module.c     sigaddset(&set, SIGIO);
SIGIO             426 event/modules/ngx_rtsig_module.c     } else if (signo == SIGIO) {
SIGIO              72 os/unix/ngx_process.c     { SIGIO, "SIGIO", "", ngx_signal_handler },
SIGIO             379 os/unix/ngx_process.c         case SIGIO:
SIGIO             414 os/unix/ngx_process.c         case SIGIO:
SIGIO             100 os/unix/ngx_process_cycle.c     sigaddset(&set, SIGIO);