Re: [PATCH 1/4] Move USER_ALIAS_PREFIX to the header file

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On 11/29/2017 09:58 AM, Ján Tomko wrote:
> Allow other parts of code to decide whether the alias is user-specified
> or not.
> ---
>  src/conf/domain_conf.c | 3 +--
>  src/conf/domain_conf.h | 2 ++
>  2 files changed, 3 insertions(+), 2 deletions(-)
> 

Why not a convenience API instead?  e.g.

bool virDomainDeviceUsingUserAlias(const char *aliasStr)
{
    return STRPREFIX(aliasStr, USER_ALIAS_PREFIX);
}

Hopefully it never changes or gets added to, but keeping UA- hidden in
the .c file perhaps works out better longer term...

John

BTW: Nit - isn't this series a v2 of the first rejected attempt...

https://www.redhat.com/archives/libvir-list/2017-November/msg01139.html


> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index b31917dad..41c94ed18 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -6656,7 +6656,6 @@ virDomainDeviceAddressParseXML(xmlNodePtr address,
>  }
>  
>  
> -#define USER_ALIAS_PREFIX "ua-"
>  #define USER_ALIAS_CHARS \
>      "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-"
>  
> @@ -6713,7 +6712,7 @@ virDomainDeviceInfoParseXML(virDomainXMLOptionPtr xmlopt ATTRIBUTE_UNUSED,
>  
>          if (!(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE) ||
>              (xmlopt->config.features & VIR_DOMAIN_DEF_FEATURE_USER_ALIAS &&
> -             STRPREFIX(aliasStr, USER_ALIAS_PREFIX) &&
> +             STRPREFIX(aliasStr, VIR_DOMAIN_USER_ALIAS_PREFIX) &&
>               strspn(aliasStr, USER_ALIAS_CHARS) == strlen(aliasStr)))
>              VIR_STEAL_PTR(info->alias, aliasStr);
>      }
> diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
> index 48b07226e..afba0ede3 100644
> --- a/src/conf/domain_conf.h
> +++ b/src/conf/domain_conf.h
> @@ -57,6 +57,8 @@
>  # include "virtypedparam.h"
>  # include "virsavecookie.h"
>  
> +# define VIR_DOMAIN_USER_ALIAS_PREFIX "ua-"
> +
>  /* forward declarations of all device types, required by
>   * virDomainDeviceDef
>   */
> 

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