On 10/27/21 20:52, Richard W.M. Jones wrote:
> It turns out that VDDK 6.0 async support is present but broken, which
> makes it hard to support this version.  If it was missing we could use
> an alternative codepath, but present-and-broken is difficult to deal
> with.  (There is no way to detect VDDK versions at run time.)
> 
> Specifically it's a problem because the completion callback API
> changed between 6.0 and 6.5:
> 
> < typedef void (*VixDiskLibCompletionCB)(void *cbData, uint64 sector,
> <                                        VixError result);
>> typedef void (*VixDiskLibCompletionCB)(void *cbData, VixError result);
> 
> Since the sector number parameter is usually != 0 and it masks the
> result parameter in the later API we think that every async call is
> returning an error.
> 
> I think we would need to require VDDK 6.5 for this change.  That was
> released in November 2016 (5 years ago) and updating VDDK is no big
> deal.

I agree, just require 6.5+.

Thanks
Laszlo

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