fd_set_blocked    191 sapi/fpm/fpm/fpm_signals.c 	if (0 > fd_set_blocked(sp[0], 0) || 0 > fd_set_blocked(sp[1], 0)) {
fd_set_blocked    201 sapi/fpm/fpm/fpm_stdio.c 	if (0 > fd_set_blocked(fd_stdout[0], 0) || 0 > fd_set_blocked(fd_stderr[0], 0)) {