[libvirt] [PATCH v2.5] daemon: Add early libvirtd start verbose errors.

[Daniel P. Berrange]

On Fri, Aug 12, 2011 at 11:54:39AM +0200, Peter Krempa wrote:
> Early errors during start of libvirtd didn't have
> an error reporting mechanism and caused libvirtd
> to exit silently (only the return value indicated
> an error).
> 
> Libvirt logging is initialized very early using
> enviroment variables and the internal error reporting
> API is used to report early errors.
> 
>  v2 changes:
>  - print errors unconditionaly before logging starts
>  - fix message to US spelling
>  v2.5 changes:
>  - initialize logging from enviroment
>  - log all early errors using VIR_ERROR
> 
> fixes: https://bugzilla.redhat.com/show_bug.cgi?id=728654
> ---
>  daemon/libvirtd.c |   41 ++++++++++++++++++++++++++++++-----------
>  1 files changed, 30 insertions(+), 11 deletions(-)
> 
> diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
> index 53f1002..aa69f80 100644
> --- a/daemon/libvirtd.c
> +++ b/daemon/libvirtd.c
> @@ -1285,11 +1285,14 @@ int main(int argc, char **argv) {
>          {0, 0, 0, 0}
>      };
> 
> +    /* initialize early logging */
> +    virLogSetFromEnv();
> +
>      if (setlocale (LC_ALL, "") == NULL ||
>          bindtextdomain (PACKAGE, LOCALEDIR) == NULL ||
>          textdomain(PACKAGE) == NULL ||
>          virInitialize() < 0) {
> -        fprintf(stderr, _("%s: initialization failed\n"), argv[0]);
> +        VIR_ERROR(_("%s: initialization failed"), argv[0]);
>          exit(EXIT_FAILURE);
>      }

Ok, not quiet that early. virInitialize() must be the first libvirt
call made since it initializes threading which is needed by logging.

Daniel
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