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qemu: Factor out body of qemuDomainGetMetadata for universal use

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The function implemented common behavior that can be reused for other
hypervisor drivers that use the virDomainObj data structures. Factor out
the core into a separate helper func.
This commit is contained in:
Peter Krempa 2013-06-11 15:45:05 +02:00
parent cb356928a6
commit 99c51af2ee
4 changed files with 69 additions and 45 deletions
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55
src/conf/domain_conf.c
View File

@ -18531,3 +18531,58 @@ virDomainDiskSourceIsBlockType(virDomainDiskDefPtr def)
}
return false;
}
char *
virDomainObjGetMetadata(virDomainObjPtr vm,
int type,
const char *uri ATTRIBUTE_UNUSED,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags)
{
virDomainDefPtr def;
char *field = NULL;
char *ret = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, NULL);
if (virDomainLiveConfigHelperMethod(caps, xmlopt, vm, &flags, &def) < 0)
goto cleanup;
/* use correct domain definition according to flags */
if (flags & VIR_DOMAIN_AFFECT_LIVE)
def = vm->def;
switch ((virDomainMetadataType) type) {
case VIR_DOMAIN_METADATA_DESCRIPTION:
field = def->description;
break;
case VIR_DOMAIN_METADATA_TITLE:
field = def->title;
break;
case VIR_DOMAIN_METADATA_ELEMENT:
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("<metadata> element is not yet supported"));
goto cleanup;
break;
default:
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("unknown metadata type"));
goto cleanup;
break;
}
if (!field)
virReportError(VIR_ERR_NO_DOMAIN_METADATA, "%s",
_("Requested metadata element is not present"));
ignore_value(VIR_STRDUP(ret, field));
cleanup:
return ret;
}

7
src/conf/domain_conf.h
View File

@ -2738,4 +2738,11 @@ bool virDomainDiskSourceIsBlockType(virDomainDiskDefPtr def)
void virDomainChrSourceDefClear(virDomainChrSourceDefPtr def);
char *virDomainObjGetMetadata(virDomainObjPtr vm,
int type,
const char *uri,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags);
#endif /* __DOMAIN_CONF_H */

1
src/libvirt_private.syms
View File

@ -309,6 +309,7 @@ virDomainNostateReasonTypeFromString;
virDomainNostateReasonTypeToString;
virDomainObjAssignDef;
virDomainObjCopyPersistentDef;
virDomainObjGetMetadata;
virDomainObjGetPersistentDef;
virDomainObjGetState;
virDomainObjListAdd;

51
src/qemu/qemu_driver.c
View File

@ -15118,21 +15118,16 @@ cleanup:
static char *
qemuDomainGetMetadata(virDomainPtr dom,
int type,
const char *uri ATTRIBUTE_UNUSED,
const char *uri,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDefPtr def;
char *ret = NULL;
char *field = NULL;
virCapsPtr caps = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, NULL);
virDomainObjPtr vm;
char *ret = NULL;
if (!(vm = qemuDomObjFromDomain(dom)))
goto cleanup;
return NULL;
if (virDomainGetMetadataEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
@ -15140,44 +15135,10 @@ qemuDomainGetMetadata(virDomainPtr dom,
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
if (virDomainLiveConfigHelperMethod(caps, driver->xmlopt, vm, &flags, &def) < 0)
goto cleanup;
/* use correct domain definition according to flags */
if (flags & VIR_DOMAIN_AFFECT_LIVE)
def = vm->def;
switch ((virDomainMetadataType) type) {
case VIR_DOMAIN_METADATA_DESCRIPTION:
field = def->description;
break;
case VIR_DOMAIN_METADATA_TITLE:
field = def->title;
break;
case VIR_DOMAIN_METADATA_ELEMENT:
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("QEMU driver does not support "
"<metadata> element"));
goto cleanup;
break;
default:
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("unknown metadata type"));
goto cleanup;
break;
}
if (!field) {
virReportError(VIR_ERR_NO_DOMAIN_METADATA, "%s",
_("Requested metadata element is not present"));
goto cleanup;
}
ignore_value(VIR_STRDUP(ret, field));
ret = virDomainObjGetMetadata(vm, type, uri, caps, driver->xmlopt, flags);
cleanup:
if (vm)
virObjectUnlock(vm);
virObjectUnlock(vm);
virObjectUnref(caps);
return ret;
}