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Date: Tue, 11 Dec 2012 11:12:10 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
Message-ID: <20121211101210.GE796@stefanha-thinkpad.muc.redhat.com>
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Subject: Re: [Qemu-devel] main-loop.c: About Select handling
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To: "Furukawa, Eiji" <e_furukawa@jp.fujitsu.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On Thu, Dec 06, 2012 at 12:30:19AM +0000, Furukawa, Eiji wrote:
> 
> The select() do not masked signal in os_host_main_loop_wait.
> 
> For example, qemu-timer.c gives SIGALRM regularly.
> Even if a buffer of select is empty, 

What does "a buffer of select is empty" mean?

> I think that it is a problem that this select() does exit by this SIGALRM.

The main loop will iterate again.  Why is it a problem if select()
returns?

Stefan