[libvirt] [PATCH 2/2] qemu: Switch context for job related private XML parsing
Having to repeat "./job[1]/" XPath prefix for every single element or
attribute we want to parse is suboptimal. And even more so once we
further extract code from qemuDomainObjPrivateXMLParseJob into separate
functions.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/qemu/qemu_domain.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index a08a1825e9..570ad4ea8f 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -2332,12 +2332,18 @@ qemuDomainObjPrivateXMLParseJob(virDomainObjPtr vm,
xmlXPathContextPtr ctxt)
{
xmlNodePtr *nodes = NULL;
+ xmlNodePtr node = ctxt->node;
char *tmp = NULL;
size_t i;
int n;
int ret = -1;
- if ((tmp = virXPathString("string(./job[1]/@type)", ctxt))) {
+ if (!(ctxt->node = virXPathNode("./job[1]", ctxt))) {
+ ret = 0;
+ goto cleanup;
+ }
+
+ if ((tmp = virXPathString("string(@type)", ctxt))) {
int type;
if ((type = qemuDomainJobTypeFromString(tmp)) < 0) {
@@ -2349,7 +2355,7 @@ qemuDomainObjPrivateXMLParseJob(virDomainObjPtr vm,
priv->job.active = type;
}
- if ((tmp = virXPathString("string(./job[1]/@async)", ctxt))) {
+ if ((tmp = virXPathString("string(@async)", ctxt))) {
int async;
if ((async = qemuDomainAsyncJobTypeFromString(tmp)) < 0) {
@@ -2360,7 +2366,7 @@ qemuDomainObjPrivateXMLParseJob(virDomainObjPtr vm,
VIR_FREE(tmp);
priv->job.asyncJob = async;
- if ((tmp = virXPathString("string(./job[1]/@phase)", ctxt))) {
+ if ((tmp = virXPathString("string(@phase)", ctxt))) {
priv->job.phase = qemuDomainAsyncJobPhaseFromString(async, tmp);
if (priv->job.phase < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -2371,7 +2377,7 @@ qemuDomainObjPrivateXMLParseJob(virDomainObjPtr vm,
}
}
- if ((n = virXPathNodeSet("./job[1]/disk[@migrating='yes']", ctxt,
&nodes)) < 0)
+ if ((n = virXPathNodeSet("./disk[@migrating='yes']", ctxt,
&nodes)) < 0)
goto cleanup;
if (n > 0) {
@@ -2394,6 +2400,7 @@ qemuDomainObjPrivateXMLParseJob(virDomainObjPtr vm,
ret = 0;
cleanup:
+ ctxt->node = node;
VIR_FREE(tmp);
VIR_FREE(nodes);
return ret;
--
2.16.2