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Re: [Qemu-devel] [PATCH v2] qemu-char: add logfile facility to all chard
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [PATCH v2] qemu-char: add logfile facility to all chardev backends |
Date: |
Wed, 23 Dec 2015 11:43:06 +0000 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Wed, Dec 23, 2015 at 12:34:25PM +0100, Paolo Bonzini wrote:
>
>
> On 22/12/2015 19:17, Daniel P. Berrange wrote:
> > + if (common->has_logfile) {
> > + int flags = O_WRONLY | O_CREAT;
> > + if (!common->has_logappend ||
> > + !common->logappend) {
> > + flags |= O_TRUNC;
> > + }
>
> Should it use O_APPEND if logappend is absent or true, or perhaps
> always? I can take care of the change myself.
Yes it should use O_APPEND in the other branch of the if,
that's a bug eric pointed out too. Basically same logic
as the recently added 'append' flag in qmp_chardev_open_file
> You are also missing a few qemu_chr_alloc calls outside qemu-char.c,
> which makes me wonder if it's better to add the new logic in
> qemu_chr_alloc itself.
Oh, yes, perhaps I should just pass ChardevCommon straight
into qemu_chr_alloc(). I'll look at that when doing the other
changes Eric suggested wrt to removing use of backend.u.data
Regards,
Daniel
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