Add a wrapper that will handle the out of memory condition by abort()
and also prevents callers from having to typecast the argument.
Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
src/conf/domain_conf.c | 7 ++-----
src/libvirt_private.syms | 1 +
src/util/virxml.c | 13 +++++++++++++
src/util/virxml.h | 4 ++++
src/vbox/vbox_snapshot_conf.c | 34 +++++++++-------------------------
tools/virsh-domain.c | 5 +----
6 files changed, 30 insertions(+), 34 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 7a3374b5be..c0881608af 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -30456,11 +30456,8 @@ virDomainDefSetMetadata(virDomainDefPtr def,
return -1;
/* create the root node if needed */
- if (!def->metadata &&
- !(def->metadata = xmlNewNode(NULL, (unsigned char *)"metadata"))) {
- virReportOOMError();
- return -1;
- }
+ if (!def->metadata)
+ def->metadata = virXMLNewNode(NULL, "metadata");
if (!(new = xmlCopyNode(doc->children, 1))) {
virReportOOMError();
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index dd54550b60..48f66daab8 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -3533,6 +3533,7 @@ virXMLBufferCreate;
virXMLCheckIllegalChars;
virXMLExtractNamespaceXML;
virXMLFormatElement;
+virXMLNewNode;
virXMLNodeContentString;
virXMLNodeNameEqual;
virXMLNodeSanitizeNamespaces;
diff --git a/src/util/virxml.c b/src/util/virxml.c
index 3fed2b2a6e..ebe479f5d3 100644
--- a/src/util/virxml.c
+++ b/src/util/virxml.c
@@ -1474,3 +1474,16 @@ virXMLBufferCreate(void)
return ret;
}
+
+
+xmlNodePtr
+virXMLNewNode(xmlNsPtr ns,
+ const char *name)
+{
+ xmlNodePtr ret;
+
+ if (!(ret = xmlNewNode(ns, BAD_CAST name)))
+ abort();
+
+ return ret;
+}
diff --git a/src/util/virxml.h b/src/util/virxml.h
index 24a2234506..d32f77b867 100644
--- a/src/util/virxml.h
+++ b/src/util/virxml.h
@@ -289,3 +289,7 @@ int virParseScaledValue(const char *xpath,
xmlBufferPtr
virXMLBufferCreate(void);
+
+xmlNodePtr
+virXMLNewNode(xmlNsPtr ns,
+ const char *name);
diff --git a/src/vbox/vbox_snapshot_conf.c b/src/vbox/vbox_snapshot_conf.c
index f1cae3039a..5792d3175e 100644
--- a/src/vbox/vbox_snapshot_conf.c
+++ b/src/vbox/vbox_snapshot_conf.c
@@ -328,7 +328,7 @@ virVBoxSnapshotConfCreateHardDiskNode(virVBoxSnapshotConfHardDiskPtr hardDisk)
int result = -1;
size_t i = 0;
char *uuid = NULL;
- xmlNodePtr ret = xmlNewNode(NULL, BAD_CAST "HardDisk");
+ xmlNodePtr ret = virXMLNewNode(NULL, "HardDisk");
uuid = g_strdup_printf("{%s}", hardDisk->uuid);
if (xmlNewProp(ret, BAD_CAST "uuid", BAD_CAST uuid) == NULL)
@@ -404,7 +404,7 @@ virVBoxSnapshotConfSerializeSnapshot(xmlNodePtr node,
/* node description */
if (snapshot->description != NULL) {
- descriptionNode = xmlNewNode(NULL, BAD_CAST "Description");
+ descriptionNode = virXMLNewNode(NULL, "Description");
xmlNodeSetContent(descriptionNode, BAD_CAST snapshot->description);
xmlAddChild(node, descriptionNode);
}
@@ -433,10 +433,10 @@ virVBoxSnapshotConfSerializeSnapshot(xmlNodePtr node,
xmlAddChild(node, storageControllerNode);
if (snapshot->nchildren > 0) {
- snapshotsNode = xmlNewNode(NULL, BAD_CAST "Snapshots");
+ snapshotsNode = virXMLNewNode(NULL, "Snapshots");
xmlAddChild(node, snapshotsNode);
for (i = 0; i < snapshot->nchildren; i++) {
- xmlNodePtr child = xmlNewNode(NULL, BAD_CAST "Snapshot");
+ xmlNodePtr child = virXMLNewNode(NULL, "Snapshot");
xmlAddChild(snapshotsNode, child);
if (virVBoxSnapshotConfSerializeSnapshot(child, snapshot->children[i]) < 0)
goto cleanup;
@@ -1001,11 +1001,7 @@ virVBoxSnapshotConfSaveVboxFile(virVBoxSnapshotConfMachinePtr machine,
goto cleanup;
}
- cur = xmlNewNode(NULL, BAD_CAST "VirtualBox");
- if (!cur) {
- virReportOOMError();
- goto cleanup;
- }
+ cur = virXMLNewNode(NULL, "VirtualBox");
if (!xmlNewProp(cur, BAD_CAST "version", BAD_CAST "1.12-linux")) {
virReportError(VIR_ERR_XML_ERROR, "%s",
@@ -1038,11 +1034,7 @@ virVBoxSnapshotConfSaveVboxFile(virVBoxSnapshotConfMachinePtr machine,
goto cleanup;
}
- machineNode = xmlNewNode(NULL, BAD_CAST "Machine");
- if (!machineNode) {
- virReportOOMError();
- goto cleanup;
- }
+ machineNode = virXMLNewNode(NULL, "Machine");
if (!xmlNewProp(machineNode, BAD_CAST "uuid", BAD_CAST machine->uuid)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
@@ -1101,11 +1093,7 @@ virVBoxSnapshotConfSaveVboxFile(virVBoxSnapshotConfMachinePtr machine,
}
xmlAddChild(xmlDocGetRootElement(xml), machineNode);
- mediaRegistryNode = xmlNewNode(NULL, BAD_CAST "MediaRegistry");
- if (!mediaRegistryNode) {
- virReportOOMError();
- goto cleanup;
- }
+ mediaRegistryNode = virXMLNewNode(NULL, "MediaRegistry");
xmlAddChild(machineNode, mediaRegistryNode);
for (i = 0; i < machine->mediaRegistry->notherMedia; i++) {
@@ -1121,11 +1109,7 @@ virVBoxSnapshotConfSaveVboxFile(virVBoxSnapshotConfMachinePtr machine,
}
xmlAddChild(mediaRegistryNode, cur);
}
- hardDisksNode = xmlNewNode(NULL, BAD_CAST "HardDisks");
- if (!hardDisksNode) {
- virReportOOMError();
- goto cleanup;
- }
+ hardDisksNode = virXMLNewNode(NULL, "HardDisks");
for (i = 0; i < machine->mediaRegistry->ndisks; i++) {
xmlNodePtr child = virVBoxSnapshotConfCreateHardDiskNode(machine->mediaRegistry->disks[i]);
if (child != NULL)
@@ -1172,7 +1156,7 @@ virVBoxSnapshotConfSaveVboxFile(virVBoxSnapshotConfMachinePtr machine,
xmlAddChild(machineNode, cur);
if (machine->snapshot != NULL) {
- snapshotNode = xmlNewNode(NULL, BAD_CAST "Snapshot");
+ snapshotNode = virXMLNewNode(NULL, "Snapshot");
xmlAddChild(machineNode, snapshotNode);
if (virVBoxSnapshotConfSerializeSnapshot(snapshotNode, machine->snapshot) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index df33467646..16e0c45f80 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -12566,10 +12566,7 @@ virshUpdateDiskXML(xmlNodePtr disk_node,
if (new_source) {
/* create new source subelement */
- if (!(source = xmlNewNode(NULL, BAD_CAST "source"))) {
- vshError(NULL, _("Failed to allocate new source node"));
- goto cleanup;
- }
+ source = virXMLNewNode(NULL, "source");
if (source_block)
xmlNewProp(source, BAD_CAST "dev", BAD_CAST new_source);
--
2.29.2
