From 451fcbfc58d3ccb9855095666aa9ba4ae1327224 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 13 Apr 2020 11:25:43 +0200 Subject: [PATCH] fileio: extend comment a bit --- src/basic/fileio.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/basic/fileio.c b/src/basic/fileio.c index 463a8596f5a..34ee939526f 100644 --- a/src/basic/fileio.c +++ b/src/basic/fileio.c @@ -1084,9 +1084,11 @@ int read_line_full(FILE *f, size_t limit, ReadLineFlags flags, char **ret) { count++; if (eol != EOL_NONE) { - /* If we are on a tty, we can't wait for more input. But we expect only - * \n as the single EOL marker, so there is no need to wait. We check - * this condition last to avoid isatty() check if not necessary. */ + /* If we are on a tty, we can't shouldn't wait for more input, because that + * generally means waiting for the user, interactively. In the case of a TTY + * we expect only \n as the single EOL marker, so we are in the lucky + * position that there is no need to wait. We check this condition last, to + * avoid isatty() check if not necessary. */ if ((flags & (READ_LINE_IS_A_TTY|READ_LINE_NOT_A_TTY)) == 0) { int fd; -- 2.47.3