From: Alexey Galakhov <agalakhov@gmail.com>
To: J William Piggott <elseifthen@gmx.com>
Cc: Karel Zak <kzak@redhat.com>, util-linux@vger.kernel.org
Subject: Re: [PATCH] hwclock: flush stdout in hwclock -c
Date: Mon, 27 Apr 2015 23:42:18 +0200 [thread overview]
Message-ID: <20150427234218.587e5435.agalakhov@gmail.com> (raw)
In-Reply-To: <553EA9AB.1000608@gmx.com>
On Mon, 27 Apr 2015 17:27:07 -0400
J William Piggott <elseifthen@gmx.com> wrote:
> I do not understand what this patch accomplishes. stdout is line
> buffered. All of hwclock -c output ends with \n, which flushes
> the buffer. Then we flush it again with fflush? What am I missing?
stdout is line buffered only if it is not redirected. Using the pipe
symbol in shell to redirect the output i.e. to awk results in not
flushing the buffer until it's full.
A quick test:
$ hwclock -c | cat
Regards,
Alexey
next prev parent reply other threads:[~2015-04-27 21:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-16 15:26 [PATCH] hwclock: flush stdout in hwclock -c Alexey Galakhov
2015-04-20 0:34 ` J William Piggott
2015-04-20 7:28 ` Alexey Galakhov
2015-04-21 15:19 ` J William Piggott
2015-04-21 15:50 ` Alexey Galakhov
2015-04-21 19:12 ` J William Piggott
2015-04-27 8:27 ` Karel Zak
2015-04-27 21:27 ` J William Piggott
2015-04-27 21:42 ` Alexey Galakhov [this message]
2015-04-28 6:50 ` Bernhard Voelker
2015-04-28 11:27 ` J William Piggott
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