[PATCH 3/8] conf: replace g_clear_pointer(..., g_hash_table_unref) with virHashFree()

[Michal Privoznik]

On 2/1/21 7:27 AM, Laine Stump wrote:
> virHashFree() just calls g_hash_table_unref(), and it's more common
> for libvirt code to call virHashFree() rather than the convoluted
> calling of g_hash_table_unref() via g_clear_pointer().
> 
> Since the object containing the hashes is g_freed immediately after
> the hashes are freed, there is no functional difference.
> 
> Signed-off-by: Laine Stump <laine at redhat.com>
> ---
>   src/conf/domain_addr.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
> index 37dad20ade..a8648d5858 100644
> --- a/src/conf/domain_addr.c
> +++ b/src/conf/domain_addr.c
> @@ -949,8 +949,8 @@ virDomainPCIAddressSetExtensionFree(virDomainPCIAddressSetPtr addrs)
>       if (!addrs || !addrs->zpciIds)
>           return;
>   
> -    g_clear_pointer(&addrs->zpciIds->uids, g_hash_table_unref);
> -    g_clear_pointer(&addrs->zpciIds->fids, g_hash_table_unref);
> +    virHashFree(addrs->zpciIds->uids);
> +    virHashFree(addrs->zpciIds->fids);
>   
>       VIR_FREE(addrs->zpciIds);
>   }
> 

virHashFree documents itself as being deprecated in favor of 
g_hash_table_unref().

While I like our virSomething wrappers (mostly because I'm used to them 
more than to their glib counterparts; but then you also have glib 
functions when one thinks that glib implementation is interchangeable 
with ours but it isn't - devil's in the details), I think our intent is 
to drop virHashFree().

But then again - we didn't, instead we replaced virHash* internals with 
glib, so I can argue that being consistent is more important than being 
progressive.

Your call, but since you build next patch on this one, I'm inclined to 
say it's okay to merge it.

Michal