Re: [PATCH v3 2/8] test: Wire up managed save APIs

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On 25.09.2013 21:15, Cole Robinson wrote:
> Also add a <test:hasmanagedsave> element to set this data when starting
> the connection.
> ---
> v3:
>     Mandate managedsave have runstate=shutoff
> 
>  src/test/test_driver.c | 134 ++++++++++++++++++++++++++++++++++++++++++++++++-
>  tests/virshtest.c      |   2 +-
>  2 files changed, 134 insertions(+), 2 deletions(-)
> 
> diff --git a/src/test/test_driver.c b/src/test/test_driver.c
> index c51c7ca..7e60716 100644
> --- a/src/test/test_driver.c
> +++ b/src/test/test_driver.c
> @@ -160,6 +160,7 @@ typedef testDomainNamespaceDef *testDomainNamespaceDefPtr;
>  struct _testDomainNamespaceDef {
>      int runstate;
>      bool transient;
> +    bool hasManagedSave;
>  };
>  
>  static void
> @@ -197,6 +198,13 @@ testDomainDefNamespaceParse(xmlDocPtr xml ATTRIBUTE_UNUSED,
>      }
>      nsdata->transient = tmp;
>  
> +    tmp = virXPathBoolean("boolean(./test:hasmanagedsave)", ctxt);
> +    if (tmp == -1) {
> +        virReportError(VIR_ERR_XML_ERROR, "%s", _("invalid hasmanagedsave"));
> +        goto error;
> +    }
> +    nsdata->hasManagedSave = tmp;
> +
>      tmp = virXPathUInt("string(./test:runstate)", ctxt, &tmpuint);
>      if (tmp == 0) {
>          if (tmpuint >= VIR_DOMAIN_LAST) {
> @@ -218,6 +226,11 @@ testDomainDefNamespaceParse(xmlDocPtr xml ATTRIBUTE_UNUSED,
>              _("transient domain cannot have runstate 'shutoff'"));
>          goto error;
>      }
> +    if (nsdata->hasManagedSave && nsdata->runstate != VIR_DOMAIN_SHUTOFF) {
> +        virReportError(VIR_ERR_XML_ERROR,

s/$/ "%s",/

> +            _("domain with managedsave data can only have runstate 'shutoff'"));
> +        goto error;
> +    }


> @@ -2836,6 +2851,15 @@ static int testDomainUndefineFlags(virDomainPtr domain,
>          goto cleanup;
>      }
>  
> +    if (privdom->hasManagedSave &&
> +        !(flags & VIR_DOMAIN_UNDEFINE_MANAGED_SAVE)) {
> +        virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> +                       _("Refusing to undefine while domain managed "
> +                         "save image exists"));
> +        goto cleanup;
> +    }
> +    privdom->hasManagedSave = false;

While this assignment is safe for now (there's not goto cleanup afterwards) I'd rather see it more closer to the ret = 0; line. What if in the future we insert something in between? 

> +
>      event = virDomainEventNewFromObj(privdom,
>                                       VIR_DOMAIN_EVENT_UNDEFINED,
>                                       VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
> @@ -5969,6 +5993,111 @@ testConnectGetCPUModelNames(virConnectPtr conn ATTRIBUTE_UNUSED,
>      return cpuGetModels(arch, models);
>  }
>  
> +static int
> +testDomainManagedSave(virDomainPtr dom, unsigned int flags)
> +{
> +    testConnPtr privconn = dom->conn->privateData;
> +    virDomainObjPtr vm = NULL;
> +    virDomainEventPtr event = NULL;
> +    int ret = -1;
> +
> +    virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
> +                  VIR_DOMAIN_SAVE_RUNNING |
> +                  VIR_DOMAIN_SAVE_PAUSED, -1);
> +
> +    testDriverLock(privconn);
> +    vm = virDomainObjListFindByName(privconn->domains, dom->name);
> +    testDriverUnlock(privconn);
> +
> +    if (vm == NULL) {
> +        virReportError(VIR_ERR_INVALID_ARG, __FUNCTION__);
> +        goto cleanup;
> +    }
> +
> +    if (!virDomainObjIsActive(vm)) {
> +        virReportError(VIR_ERR_OPERATION_INVALID,
> +                       "%s", _("domain is not running"));
> +        goto cleanup;
> +    }
> +
> +    if (!vm->persistent) {
> +        virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> +                       _("cannot do managed save for transient domain"));
> +        goto cleanup;
> +    }
> +
> +    testDomainShutdownState(dom, vm, VIR_DOMAIN_SHUTOFF_SAVED);
> +    event = virDomainEventNewFromObj(vm,
> +                                     VIR_DOMAIN_EVENT_STOPPED,
> +                                     VIR_DOMAIN_EVENT_STOPPED_SAVED);
> +    vm->hasManagedSave = true;
> +
> +    ret = 0;

This ^^^ is what I have in my mind.

> +cleanup:
> +    if (vm)
> +        virObjectUnlock(vm);
> +    if (event) {
> +        testDriverLock(privconn);
> +        testDomainEventQueue(privconn, event);
> +        testDriverUnlock(privconn);
> +    }
> +
> +    return ret;
> +}
> +
> +


> +static int
> +testDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags)
> +{
> +    testConnPtr privconn = dom->conn->privateData;
> +    virDomainObjPtr vm;
> +    int ret = -1;
> +
> +    virCheckFlags(0, -1);
> +
> +    testDriverLock(privconn);
> +
> +    vm = virDomainObjListFindByName(privconn->domains, dom->name);
> +    if (vm == NULL) {
> +        virReportError(VIR_ERR_INVALID_ARG, __FUNCTION__);
> +        goto cleanup;
> +    }
> +
> +    ret = vm->hasManagedSave;
> +cleanup:
> +    if (vm)
> +        virObjectUnlock(vm);
> +    testDriverUnlock(privconn);
> +    return ret;
> +}
> +
> +static int
> +testDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
> +{
> +    testConnPtr privconn = dom->conn->privateData;
> +    virDomainObjPtr vm;
> +    int ret = -1;
> +
> +    virCheckFlags(0, -1);
> +
> +    testDriverLock(privconn);
> +
> +    vm = virDomainObjListFindByName(privconn->domains, dom->name);
> +    if (vm == NULL) {
> +        virReportError(VIR_ERR_INVALID_ARG, __FUNCTION__);
> +        goto cleanup;
> +    }
> +
> +    vm->hasManagedSave = false;
> +    ret = 0;
> +cleanup:
> +    if (vm)
> +        virObjectUnlock(vm);
> +    testDriverUnlock(privconn);
> +    return ret;
> +}

The driver can be unlocked right after virDomainObjListFindByName(). But who cares about throughput in test driver, right?

ACK if you squash this in:


diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 77c3d23..f40a841 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -227,7 +227,7 @@ testDomainDefNamespaceParse(xmlDocPtr xml ATTRIBUTE_UNUSED,
         goto error;
     }
     if (nsdata->hasManagedSave && nsdata->runstate != VIR_DOMAIN_SHUTOFF) {
-        virReportError(VIR_ERR_XML_ERROR,
+        virReportError(VIR_ERR_XML_ERROR, "%s",
             _("domain with managedsave data can only have runstate 'shutoff'"));
         goto error;
     }

Michal

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