Re: [libvirt] [PATCH v8 11/21] backup: Parse and output backup XML

Accept XML describing a generic block job, and output it again as needed. This may still need a few tweaks to match the documented XML and RNG schema. Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; ---

+/* Align def->disks to domain. Sort the list of def->disks, + * generating storage names using suffix as needed. Convert paths to + * disk targets for uniformity. Issue an error and return -1 if any + * def->disks[n]->name appears more than once or does not map to + * dom->disks. */ +int +virDomainBackupAlignDisks(virDomainBackupDefPtr def, virDomainDefPtr dom, + const char *suffix) +{

+ /* Double check requested disks. */ + for (i = 0; i < def->ndisks; i++) { + virDomainBackupDiskDefPtr disk = &def->disks[i]; + int idx = virDomainDiskIndexByName(dom, disk->name, false);

+ + if (idx < 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("no disk named '%s'"), disk->name); + goto cleanup; + } + + if (virBitmapIsBitSet(map, idx)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("disk '%s' specified twice"), + disk->name); + goto cleanup; + } + ignore_value(virBitmapSetBit(map, idx)); + disk->idx = idx; + + if (STRNEQ(disk->name, dom->disks[idx]->dst)) { + VIR_FREE(disk->name); + if (VIR_STRDUP(disk->name, dom->disks[idx]->dst) < 0)

+ goto cleanup; + } + if (disk->store && !disk->store->path) { + virStorageSourceClear(disk->store); + disk->store = NULL; + } + if (virDomainBackupDefAssignStore(disk, dom->disks[i]->src, suffix) < 0)