Re: [PATCH 3/4] conf: Introduce virDomainObjListAddObjLocked

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On 03/29/2018 02:34 PM, John Ferlan wrote:
> Create a common helper to add an object to the locked domain
> objlist hash tables and use it.
> 
> Signed-off-by: John Ferlan <jferlan@xxxxxxxxxx>
> ---
>  src/conf/virdomainobjlist.c | 64 +++++++++++++++++++++++++++------------------
>  1 file changed, 39 insertions(+), 25 deletions(-)
> 
> diff --git a/src/conf/virdomainobjlist.c b/src/conf/virdomainobjlist.c
> index 765f46d5a..7022abe09 100644
> --- a/src/conf/virdomainobjlist.c
> +++ b/src/conf/virdomainobjlist.c
> @@ -220,6 +220,42 @@ virDomainObjPtr virDomainObjListFindByName(virDomainObjListPtr doms,
>  }
>  
>  
> +/**
> + * @doms: Domain object list pointer
> + * @vm: Domain object to be added
> + *
> + * Upon entry @vm should have at least 1 ref and be locked.
> + *
> + * Add the @vm into the @doms->objs and @doms->objsName hash
> + * tables.
> + *
> + * Returns 0 on success with 2 references and locked
> + *        -1 on failure with 1 reference and locked
> + */
> +static int
> +virDomainObjListAddObjLocked(virDomainObjListPtr doms,
> +                             virDomainObjPtr vm)
> +{
> +    char uuidstr[VIR_UUID_STRING_BUFLEN];
> +
> +    virUUIDFormat(vm->def->uuid, uuidstr);
> +    if (virHashAddEntry(doms->objs, uuidstr, vm) < 0)
> +        return -1;
> +
> +    if (virHashAddEntry(doms->objsName, vm->def->name, vm) < 0) {
> +        virObjectRef(vm);
> +        virHashRemoveEntry(doms->objs, uuidstr);
> +        return -1;
> +    }
> +
> +    /* Since domain is in two hash tables, increment the
> +     * reference counter */
> +    virObjectRef(vm);

I think this virObjectRef() could be moved in between those two
virHashAddEntry() calls and thus the later call to virObjectRef() can be
dropped then.

Michal

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