[Libguestfs] [nbdkit PATCH 2/4] tests: Test retry with different fua/fast-zero flags

[Richard W.M. Jones]

On Wed, Oct 02, 2019 at 09:50:45PM -0500, Eric Blake wrote:
> +case "$1" in
> +    open)
> +        # Count how many times the connection is (re-)opened.
> +        read i < retry-zero-flags-open-count
> +        echo $((i+1)) > retry-zero-flags-open-count
> +        ;;
> +    can_write | can_zero) exit 0 ;;
> +    can_fua)
> +        read i < retry-zero-flags-open-count
> +	case $i in
> +            1 | 4 | 5) echo native ;;
> +            *)         echo none   ;;
> +        esac

Whitespace problem?

This answers the question I had in the first patch: how can it
possibly happen that can_fua changes on a retry.  It seems unlikely a
real plugin would be written like this, but obviously it's possible :-(

Rich.

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