C++ (Cpp) virDomainSnapshotDiskDefClear Examples

Example #1

File: snapshot_conf.c Project: bigclouds/libvirt

static int
virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
                                 virDomainSnapshotDiskDefPtr def)
{
    int ret = -1;
    char *snapshot = NULL;
    xmlNodePtr cur;

    def->name = virXMLPropString(node, "name");
    if (!def->name) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("missing name from disk snapshot element"));
        goto cleanup;
    }

    snapshot = virXMLPropString(node, "snapshot");
    if (snapshot) {
        def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
        if (def->snapshot <= 0) {
            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("unknown disk snapshot setting '%s'"),
                           snapshot);
            goto cleanup;
        }
    }

    cur = node->children;
    while (cur) {
        if (cur->type == XML_ELEMENT_NODE) {
            if (!def->file &&
                xmlStrEqual(cur->name, BAD_CAST "source")) {
                def->file = virXMLPropString(cur, "file");
            } else if (!def->format &&
                       xmlStrEqual(cur->name, BAD_CAST "driver")) {
                char *driver = virXMLPropString(cur, "type");
                def->format = virStorageFileFormatTypeFromString(driver);
                if (def->format <= 0) {
                    virReportError(VIR_ERR_INTERNAL_ERROR,
                                   _("unknown disk snapshot driver '%s'"),
                                   driver);
                    VIR_FREE(driver);
                    goto cleanup;
                }
                VIR_FREE(driver);
            }
        }
        cur = cur->next;
    }

    if (!def->snapshot && (def->file || def->format))
        def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;

    ret = 0;
cleanup:
    VIR_FREE(snapshot);
    if (ret < 0)
        virDomainSnapshotDiskDefClear(def);
    return ret;
}

Example #2

void virDomainSnapshotDefFree(virDomainSnapshotDefPtr def)
{
    int i;

    if (!def)
        return;

    VIR_FREE(def->name);
    VIR_FREE(def->description);
    VIR_FREE(def->parent);
    for (i = 0; i < def->ndisks; i++)
        virDomainSnapshotDiskDefClear(&def->disks[i]);
    VIR_FREE(def->disks);
    virDomainDefFree(def->dom);
    VIR_FREE(def);
}

Example #3

File: snapshot_conf.c Project: SvenDowideit/clearlinux

static int
virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
                                 xmlXPathContextPtr ctxt,
                                 virDomainSnapshotDiskDefPtr def)
{
    int ret = -1;
    char *snapshot = NULL;
    char *type = NULL;
    xmlNodePtr cur;

    if (VIR_ALLOC(def->src) < 0)
        goto cleanup;

    def->name = virXMLPropString(node, "name");
    if (!def->name) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("missing name from disk snapshot element"));
        goto cleanup;
    }

    snapshot = virXMLPropString(node, "snapshot");
    if (snapshot) {
        def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
        if (def->snapshot <= 0) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("unknown disk snapshot setting '%s'"),
                           snapshot);
            goto cleanup;
        }
    }

    if ((type = virXMLPropString(node, "type"))) {
        if ((def->src->type = virStorageTypeFromString(type)) <= 0 ||
            def->src->type == VIR_STORAGE_TYPE_VOLUME ||
            def->src->type == VIR_STORAGE_TYPE_DIR) {
            virReportError(VIR_ERR_XML_ERROR,
                           _("unknown disk snapshot type '%s'"), type);
            goto cleanup;
        }
    } else {
        def->src->type = VIR_STORAGE_TYPE_FILE;
    }

    for (cur = node->children; cur; cur = cur->next) {
        if (cur->type != XML_ELEMENT_NODE)
            continue;

        if (!def->src->path &&
            xmlStrEqual(cur->name, BAD_CAST "source")) {

            if (virDomainDiskSourceParse(cur, ctxt, def->src) < 0)
                goto cleanup;

        } else if (!def->src->format &&
                   xmlStrEqual(cur->name, BAD_CAST "driver")) {
            char *driver = virXMLPropString(cur, "type");
            if (driver) {
                def->src->format = virStorageFileFormatTypeFromString(driver);
                if (def->src->format < VIR_STORAGE_FILE_BACKING) {
                    virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                   def->src->format <= 0
                                   ? _("unknown disk snapshot driver '%s'")
                                   : _("disk format '%s' lacks backing file "
                                       "support"),
                                   driver);
                    VIR_FREE(driver);
                    goto cleanup;
                }
                VIR_FREE(driver);
            }
        }
    }

    /* validate that the passed path is absolute */
    if (virStorageSourceIsLocalStorage(def->src) &&
        def->src->path &&
        def->src->path[0] != '/') {
        virReportError(VIR_ERR_XML_ERROR,
                       _("disk snapshot image path '%s' must be absolute"),
                       def->src->path);
        goto cleanup;
    }

    if (!def->snapshot && (def->src->path || def->src->format))
        def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;

    ret = 0;
 cleanup:
    VIR_FREE(snapshot);
    VIR_FREE(type);
    if (ret < 0)
        virDomainSnapshotDiskDefClear(def);
    return ret;
}