Re: [PATCH 2/2] test_driver: provide basic disk hotunplug support

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On 11/1/24 23:31, John Levon wrote:
> Signed-off-by: John Levon <john.levon@xxxxxxxxxxx>
> ---
>  src/test/test_driver.c | 114 ++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 112 insertions(+), 2 deletions(-)
> 
> diff --git a/src/test/test_driver.c b/src/test/test_driver.c
> index b7e36e8451..789b1a2222 100644
> --- a/src/test/test_driver.c
> +++ b/src/test/test_driver.c
> @@ -10741,6 +10741,85 @@ testDomainDetachPrepNet(virDomainObj *vm,
>  }
>  
>  
> +static int
> +testFindDisk(virDomainDef *def, const char *dst)
> +{
> +    size_t i;
> +
> +    for (i = 0; i < def->ndisks; i++) {
> +        if (STREQ(def->disks[i]->dst, dst))
> +            return i;
> +    }
> +
> +    return -1;
> +}
> +
> +static int
> +testDomainDetachPrepDisk(virDomainObj *vm,
> +                         virDomainDiskDef *match,
> +                         virDomainDiskDef **detach)
> +{
> +    virDomainDiskDef *disk;
> +    int idx;
> +
> +    if ((idx = testFindDisk(vm->def, match->dst)) < 0) {
> +        virReportError(VIR_ERR_DEVICE_MISSING,
> +                       _("disk %1$s not found"), match->dst);
> +        return -1;
> +    }
> +    *detach = disk = vm->def->disks[idx];

So idx is there only to access vm->def->disks array? Well, the same
result can be achieved using virDomainDiskByTarget().

Oh, and I'd set *detach only after all checks passed, i.e. right before
return 0.

Michal



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