sigprocmask 157 event/modules/ngx_rtsig_module.c if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) { sigprocmask 45 os/unix/ngx_freebsd_rfork_thread.h (sigprocmask(how, set, oset) == -1) ? ngx_errno : 0 sigprocmask 109 os/unix/ngx_process_cycle.c if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) { sigprocmask 946 os/unix/ngx_process_cycle.c if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {