PHP_STREAM_OPTION_PIPE_BLOCKING  422 ext/standard/php_fopen_wrapper.c 			php_stream_set_option(stream, PHP_STREAM_OPTION_PIPE_BLOCKING, Z_LVAL_P(blocking_pipes), NULL);
PHP_STREAM_OPTION_PIPE_BLOCKING  943 ext/standard/proc_open.c 				php_stream_set_option(stream, PHP_STREAM_OPTION_PIPE_BLOCKING, blocking_pipes, NULL);
PHP_STREAM_OPTION_PIPE_BLOCKING  850 main/streams/plain_wrapper.c 		case PHP_STREAM_OPTION_PIPE_BLOCKING: