Re: [PATCH 2/2] bhyve: domainCreateXML

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On Wed, Apr 09, 2014 at 07:52:12AM +0200, Wojciech Macek wrote:
> Implement bhyveDomainCreteXML function.
> ---
>  src/bhyve/bhyve_driver.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 70 insertions(+)
> 
> diff --git a/src/bhyve/bhyve_driver.c b/src/bhyve/bhyve_driver.c
> index 23e7112..1357e07 100644
> --- a/src/bhyve/bhyve_driver.c
> +++ b/src/bhyve/bhyve_driver.c
> @@ -1107,6 +1107,75 @@ bhyveConnectCompareCPU(virConnectPtr conn,
>      return ret;
>  }
>  
> +static virDomainPtr
> +bhyveDomainCreateXML(virConnectPtr conn,
> +                     const char *xml,
> +                     unsigned int flags)
> +{
> +    bhyveConnPtr privconn = conn->privateData;
> +    virDomainPtr dom = NULL;
> +    virDomainDefPtr def = NULL;
> +    virDomainObjPtr vm = NULL;
> +    virCapsPtr caps = NULL;
> +    int ret;
> +    unsigned int start_flags = 0;
> +
> +    virCheckFlags(VIR_DOMAIN_START_AUTODESTROY, NULL);
> +
> +    if (flags & VIR_DOMAIN_START_AUTODESTROY)
> +        start_flags |= VIR_BHYVE_PROCESS_START_AUTODESTROY;
> +
> +    caps = bhyveDriverGetCapabilities(privconn);
> +    if (!caps)
> +        return NULL;
> +
> +    if ((def = virDomainDefParseString(xml, caps, privconn->xmlopt,
> +                                       1 << VIR_DOMAIN_VIRT_BHYVE,
> +                                       VIR_DOMAIN_XML_INACTIVE)) == NULL)
> +        goto cleanup;
> +
> +    if (virDomainCreateXMLEnsureACL(conn, def) < 0)
> +        goto cleanup;
> +
> +    if (!(vm = virDomainObjListAdd(privconn->domains, def,
> +                                   privconn->xmlopt,
> +                                   0, NULL)))

You should pass VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE, rather than 0.
This ensures you don't overwrite the config of an existing runing
guest

> +        goto cleanup;
> +    def = NULL;
> +    vm->persistent = 0;

Don't reset the persistent flag. The guest may already exist
as an inactive persistent guest, and you're causing that to be
lost.

> +
> +    dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
> +    if (!dom)
> +        goto cleanup;
> +
> +    dom->id = vm->def->id;

Err, the 'id' won't be set until you've started the guest,
so this fnuction call & set needs to be the last thing you
do

> +
> +    if (flags & VIR_DOMAIN_START_AUTODESTROY)
> +        start_flags |= VIR_BHYVE_PROCESS_START_AUTODESTROY;

You've already done this above.

> +
> +    if (virDomainObjIsActive(vm)) {
> +        virReportError(VIR_ERR_OPERATION_INVALID,
> +                       "%s", _("Domain is already running"));
> +        goto cleanup;
> +    }

This is not required if you pass the right flags to the
virDomainObjListAdd method

> +
> +    ret = virBhyveProcessStart(dom->conn, privconn, vm,
> +                               VIR_DOMAIN_RUNNING_BOOTED,
> +                               start_flags);
> +    if (ret) {
> +        virObjectUnref(dom);
> +        dom = NULL;
> +        goto cleanup;
> +    }
> +
> + cleanup:
> +    virObjectUnref(caps);
> +    virDomainDefFree(def);
> +    virObjectUnlock(vm);
> +
> +    return dom;
> +}

Regards,
Daniel
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