[libvirt] [PATCH 2/2] qemu: fixing internationalization problem with sched kernel entry.

[John Ferlan]

On 06/14/2017 12:25 PM, Julio Faracco wrote:
> In qemuGetSchedInfo(), libvirt is trying to parse some field of /proc/*/sched.
> Some fields are floating point numbers and their separator is always a dot.
> When you change the locale of the system, you can change the mantissa
> separator (to a comma separator) of floating point numbers and it affects the
> parser.
> 
> This commit introduces the virStrToDoubleSafe() to avoid comma as a separator.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1457634
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1457481
> 
> Signed-off-by: Julio Faracco <jcfaracco at gmail.com>
> ---
>  src/qemu/qemu_driver.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

FWIW: Since you'll have to post a v2 anyway due to 1/2 NACK, may I
suggest checking out the very recent on-list discussion about sending
patches using --cover-letter for multiple patch series from the hacking
page:

https://www.redhat.com/archives/libvir-list/2017-June/msg00638.html

and the hacking guidelines:

http://libvirt.org/hacking.html

Keeping "related" patches threaded is helpful for reviewers and doesn't
leave a stray on the list...

Tks -

John

> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index ba1dba5..f1b104f 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -1369,7 +1369,7 @@ qemuGetSchedInfo(unsigned long long *cpuWait,
>              while (*line == ' ')
>                  line++;
>  
> -            if (virStrToDouble(line, NULL, &val) < 0) {
> +            if (virStrToDoubleSafe(line, NULL, &val) < 0) {
>                  virReportError(VIR_ERR_INTERNAL_ERROR,
>                                 _("Unable to parse sched info value '%s'"),
>                                 line);
>