public inbox for cygwin-cvs@sourceware.org help / color / mirror / Atom feed
From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: serial: try fix o_nonblock Date: Fri, 13 Mar 2020 09:56:10 +0000 (GMT) [thread overview] Message-ID: <20200313095610.4D1DD3942003@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=57a80207ff5f7045a45668cee827ce7f6906ccc8 commit 57a80207ff5f7045a45668cee827ce7f6906ccc8 Author: Corinna Vinschen <corinna@vinschen.de> Date: Thu Mar 12 16:07:01 2020 +0100 Cygwin: serial: try fix o_nonblock Diff: --- winsup/cygwin/fhandler_serial.cc | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/winsup/cygwin/fhandler_serial.cc b/winsup/cygwin/fhandler_serial.cc index 69e5768f6..f92fc7039 100644 --- a/winsup/cygwin/fhandler_serial.cc +++ b/winsup/cygwin/fhandler_serial.cc @@ -68,6 +68,16 @@ fhandler_serial::raw_read (void *ptr, size_t& ulen) goto err; else if (ev) termios_printf ("error detected %x", ev); + else if (is_nonblocking ()) + { + if (!st.cbInQue) + { + tot = -1; + set_errno (EAGAIN); + goto out; + } + inq = st.cbInQue; + } else if (st.cbInQue && !vtime_) inq = st.cbInQue; else if (!is_nonblocking () && !overlapped_armed)
reply other threads:[~2020-03-13 9:56 UTC|newest] Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20200313095610.4D1DD3942003@sourceware.org \ --to=corinna@sourceware.org \ --cc=cygwin-cvs@sourceware.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).