linux-kernel - Re: [PATCH 0/7] TTY Keyboard Status Request

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Message-ID: <97e43820-6143-2a84-7d0d-6f40c6c937a7@landley.net>
Date:   Mon, 10 Jun 2019 16:18:11 -0500
From:   Rob Landley <rob@...dley.net>
To:     Arseny Maslennikov <ar@...msu.ru>, Pavel Machek <pavel@...x.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org,
        "Vladimir D . Seleznev" <vseleznv@...linux.org>
Subject: Re: [PATCH 0/7] TTY Keyboard Status Request

On 6/9/19 3:56 PM, Arseny Maslennikov wrote:
> This is similar to SIGWINCH, which is default-ignored as well: if the
> terminal width/height changes (like when a terminal emulator window is
> resized), its foreground pgrp gets a surprise signal as well, and the
> processes that don't care about WINCH (and thus have default
> disposition) do not get confused.
> E.g. 'strace cat' demonstrates this quite clearly.

Once upon a time suspending pipelines with ctrl-z broke stuff all the time due
to zero length reads being interpreted as EOF. These days I don't see that so
much anymore, I think SA_RESTART is the default now?

Rob