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Date: Thu, 29 Nov 2012 15:17:32 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
Message-ID: <20121129141732.GC13694@stefanha-thinkpad.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 Wed, Nov 28, 2012 at 03:08:24AM +0000, Furukawa, Eiji wrote:
> About a source of qemu-1.2.0/main-loop.c
> The select handling of os_host_main_loop_wait function
> I do not seem to do Exit by interrupts such as SIGUSR1
> Will not it be necessary to make modifications?
> 
> Before
>  LineNumber:308   ret = select(nfds + 1, &rfds, &wfds, &xfds, tvarg);
> 
> After(Example)
>     do {
>         ret = select(nfds + 1, &rfds, &wfds, &xfds, tvarg);
>     } while(ret == -1 && (errno == EINTR || errno == EAGAIN))

What is the specific bug or problem you're seeing?

QEMU uses several signals internally and sets up per-thread signal masks
appropriately.

Stefan