Re: [libvirt PATCH v2 10/16] api: add virNodeDeviceDefineXML()

With mediated devices, we can now define persistent node devices that can be started and stopped. In order to take advantage of this, we need an API to define new node devices. Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com&gt; ---

+virNodeDevicePtr +nodeDeviceDefineXML(virConnectPtr conn, + const char *xmlDesc, + unsigned int flags) +{ + g_autoptr(virNodeDeviceDef) def = NULL; + virNodeDevicePtr device = NULL; + const char *virt_type = NULL; + + virCheckFlags(0, NULL); + + if (nodeDeviceWaitInit() < 0) + return NULL; + + virt_type = virConnectGetType(conn); + + if (!(def = virNodeDeviceDefParseString(xmlDesc, CREATE_DEVICE, virt_type))) + return NULL; + + if (virNodeDeviceDefineXMLEnsureACL(conn, def) < 0) + return NULL; + + if (nodeDeviceHasCapability(def, VIR_NODE_DEV_CAP_MDEV)) { + g_autofree char *uuid = NULL; + + if (!def->parent) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("cannot define a mediated device without a parent")); + return NULL; + } + + if (virMdevctlDefine(def, &uuid) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Unable to define mediated device")); + return NULL; + } + + def->caps->data.mdev.uuid = g_strdup(uuid); + mdevGenerateDeviceName(def); + device = nodeDeviceFindNewMediatedDevice(conn, uuid); + } else { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Unsupported device type"));