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parallels: fill volumes capacity parameter

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Read disk images size from xml description and fill
virStorageVolDef.capacity and allocation (let's consider
that allocation is the same as capacity, calculating real
allcoation will be implemented later).

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
This commit is contained in:
Dmitry Guryanov 2012-12-04 17:43:08 +04:00 committed by Daniel Veillard
parent 9b4c03ae5d
commit a9bd9b94e1
1 changed files with 52 additions and 2 deletions
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54
src/parallels/parallels_storage.c
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@ -253,10 +253,57 @@ parallelsPoolAddByDomain(virConnectPtr conn, virDomainObjPtr dom)
return pool;
}
static int parallelsDiskDescParseNode(xmlDocPtr xml,
xmlNodePtr root,
virStorageVolDefPtr def)
{
xmlXPathContextPtr ctxt = NULL;
int ret;
if (STRNEQ((const char *)root->name, "Parallels_disk_image")) {
virReportError(VIR_ERR_XML_ERROR,
"%s", _("unknown root element for storage pool"));
goto cleanup;
}
ctxt = xmlXPathNewContext(xml);
if (ctxt == NULL) {
virReportOOMError();
goto cleanup;
}
ctxt->node = root;
if (virXPathULongLong("string(./Disk_Parameters/Disk_size)",
ctxt, &def->capacity))
ret = -1;
def->capacity <<= 9;
def->allocation = def->capacity;
cleanup:
xmlXPathFreeContext(ctxt);
return ret;
}
static int parallelsDiskDescParse(const char *path, virStorageVolDefPtr def)
{
xmlDocPtr xml;
int ret = -1;
if (!(xml = virXMLParse(path, NULL, NULL)))
return -1;
ret = parallelsDiskDescParseNode(xml, xmlDocGetRootElement(xml), def);
xmlFreeDoc(xml);
return ret;
}
static int parallelsAddDiskVolume(virStoragePoolObjPtr pool,
virDomainObjPtr dom,
const char *diskName,
const char *diskPath)
const char *diskPath,
const char *diskDescPath)
{
virStorageVolDefPtr def = NULL;
@ -269,6 +316,8 @@ static int parallelsAddDiskVolume(virStoragePoolObjPtr pool,
def->type = VIR_STORAGE_VOL_FILE;
parallelsDiskDescParse(diskDescPath, def);
if (!(def->target.path = realpath(diskPath, NULL)))
goto no_memory;
@ -334,7 +383,8 @@ static int parallelsFindVmVolumes(virStoragePoolObjPtr pool,
/* here we know, that ent->d_name is a disk image directory */
if (parallelsAddDiskVolume(pool, dom, ent->d_name, diskPath))
if (parallelsAddDiskVolume(pool, dom, ent->d_name,
diskPath, diskDescPath))
goto cleanup;
}