Re: [PATCH 2/2] test_driver: implement virDomainGetFSInfo

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On Tue, Jun 25, 2019 at 11:58:07PM +0200, Ilias Stamatis wrote:
> Always return / and /boot as the mount points imitating a default
> Fedora installation. Use the first disk found, otherwise if no disk
> device of type VIR_DOMAIN_DISK_DEVICE_DISK is present, return 0 mount
> points.
>
> Signed-off-by: Ilias Stamatis <stamatis.iliass@xxxxxxxxx>
> ---
>  src/test/test_driver.c | 66 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 66 insertions(+)
>
> diff --git a/src/test/test_driver.c b/src/test/test_driver.c
> index 1b1ff3003e..626449501f 100755
> --- a/src/test/test_driver.c
> +++ b/src/test/test_driver.c
> @@ -3298,6 +3298,71 @@ static int testDomainGetDiskErrors(virDomainPtr dom,
>      return ret;
>  }
>
> +
> +
> +static int
> +testDomainGetFSInfo(virDomainPtr dom,
> +                    virDomainFSInfoPtr **info,
> +                    unsigned int flags)
> +{
> +    size_t i;
> +    char *name;
> +    virDomainObjPtr vm;
> +    virDomainFSInfoPtr *info_ret = NULL;
> +    int ret = -1;
> +
> +    virCheckFlags(0, -1);
> +
> +    if (!(vm = testDomObjFromDomain(dom)))
> +        return -1;
> +
> +    if (virDomainObjCheckActive(vm) < 0)
> +        goto cleanup;
> +
> +    *info = NULL;
> +
> +    for (i = 0; i < vm->def->ndisks; i++) {
> +        if (vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
> +            if (VIR_ALLOC_N(info_ret, 2) < 0 || VIR_ALLOC(info_ret[0]) < 0 ||
> +                VIR_ALLOC(info_ret[1]) < 0 || VIR_ALLOC(info_ret[0]->devAlias) < 0 ||
> +                VIR_ALLOC(info_ret[1]->devAlias) < 0)

^these should be on separate lines to enhance readability.

> +                goto cleanup;
> +
> +            name = vm->def->disks[i]->dst;
> +
> +            if (VIR_STRDUP(info_ret[0]->mountpoint, "/") < 0 ||
> +                VIR_STRDUP(info_ret[1]->mountpoint, "/boot") < 0 ||
> +                VIR_STRDUP(info_ret[0]->fstype, "ext4") < 0 ||
> +                VIR_STRDUP(info_ret[1]->fstype, "ext4") < 0 ||
> +                VIR_STRDUP(info_ret[0]->devAlias[0], name) < 0 ||
> +                VIR_STRDUP(info_ret[1]->devAlias[0], name) < 0 ||
> +                virAsprintf(&info_ret[0]->name, "%s1", name) < 0 ||
> +                virAsprintf(&info_ret[1]->name, "%s2", name) < 0)
> +                goto cleanup;

Okay, alternatively we could have 2 'if' clauses for each mountpoint, this is
strictly a personal preference, I think it could read even better if the
mountpoints were logically separated, but I won't insist on that.

Let me know whether you're okay with the proposed tweaks.

Reviewed-by: Erik Skultety <eskultet@xxxxxxxxxx>

> +
> +            info_ret[0]->ndevAlias = info_ret[1]->ndevAlias = 1;
> +
> +            VIR_STEAL_PTR(*info, info_ret);
> +
> +            ret = 2;
> +            goto cleanup;
> +        }
> +    }
> +
> +    ret = 0;
> +
> + cleanup:
> +    if (info_ret) {
> +        virDomainFSInfoFree(info_ret[0]);
> +        virDomainFSInfoFree(info_ret[1]);
> +        VIR_FREE(info_ret);
> +    }
> +
> +    virDomainObjEndAPI(&vm);
> +    return ret;
> +}
> +
> +
>  static char *testDomainGetSchedulerType(virDomainPtr domain ATTRIBUTE_UNUSED,
>                                          int *nparams)
>  {
> @@ -7292,6 +7357,7 @@ static virHypervisorDriver testHypervisorDriver = {
>      .domainGetAutostart = testDomainGetAutostart, /* 0.3.2 */
>      .domainSetAutostart = testDomainSetAutostart, /* 0.3.2 */
>      .domainGetDiskErrors = testDomainGetDiskErrors, /* 5.4.0 */
> +    .domainGetFSInfo = testDomainGetFSInfo, /* 5.5.0 */
>      .domainGetSchedulerType = testDomainGetSchedulerType, /* 0.3.2 */
>      .domainGetSchedulerParameters = testDomainGetSchedulerParameters, /* 0.3.2 */
>      .domainGetSchedulerParametersFlags = testDomainGetSchedulerParametersFlags, /* 0.9.2 */
> --
> 2.22.0
>
> --
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> libvir-list@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/libvir-list

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