[libvirt] [PATCH 5/9] conf: snapshot: dump/parse persistent domain config
Nikolay Shirokovskiy
nshirokovskiy at virtuozzo.com
Thu Dec 13 08:03:55 UTC 2018
Persistent in this case is a persistent config of active
persistent domain. We need it for metadata to be complete
as explained in previous patch.
Config is saved like this:
<domainsnapshot>
<persistent>
<domain>
...
</domain>
</persistent>
</domainsnapshot>
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy at virtuozzo.com>
---
src/conf/snapshot_conf.c | 26 +++++++
.../active_inactive_domain.xml | 85 ++++++++++++++++++++++
tests/domainsnapshotxml2xmltest.c | 1 +
3 files changed, 112 insertions(+)
create mode 100644 tests/domainsnapshotxml2xmlout/active_inactive_domain.xml
diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index 2e4a0b9..34fcf64 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -283,6 +283,20 @@ virDomainSnapshotDefParse(xmlXPathContextPtr ctxt,
} else {
VIR_WARN("parsing older snapshot that lacks domain");
}
+
+ if (def->state == VIR_DOMAIN_RUNNING ||
+ def->state == VIR_DOMAIN_PAUSED) {
+ int domainflags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
+ VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
+ xmlNodePtr domainNode;
+
+ if ((domainNode = virXPathNode("./persistent/domain", ctxt)) &&
+ !(def->persistDom = virDomainDefParseNode(ctxt->node->doc,
+ domainNode, caps,
+ xmlopt, NULL,
+ domainflags)))
+ goto cleanup;
+ }
} else {
def->creationTime = tv.tv_sec;
}
@@ -753,6 +767,18 @@ virDomainSnapshotDefFormat(const char *domain_uuid,
virBufferAddLit(&buf, "</domain>\n");
}
+ if (def->persistDom) {
+ virBufferAddLit(&buf, "<persistent>\n");
+ virBufferAdjustIndent(&buf, 2);
+
+ if (virDomainDefFormatInternal(def->persistDom,
+ caps, flags, &buf, xmlopt) < 0)
+ goto error;
+
+ virBufferAdjustIndent(&buf, -2);
+ virBufferAddLit(&buf, "</persistent>\n");
+ }
+
if (virSaveCookieFormatBuf(&buf, def->cookie,
virDomainXMLOptionGetSaveCookie(xmlopt)) < 0)
goto error;
diff --git a/tests/domainsnapshotxml2xmlout/active_inactive_domain.xml b/tests/domainsnapshotxml2xmlout/active_inactive_domain.xml
new file mode 100644
index 0000000..74025a3
--- /dev/null
+++ b/tests/domainsnapshotxml2xmlout/active_inactive_domain.xml
@@ -0,0 +1,85 @@
+<domainsnapshot>
+ <name>my snap name</name>
+ <description>!@#$%^</description>
+ <state>running</state>
+ <parent>
+ <name>earlier_snap</name>
+ </parent>
+ <creationTime>1272917631</creationTime>
+ <memory snapshot='internal'/>
+ <domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static' cpuset='1-4,8-20,525'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </memballoon>
+ </devices>
+ </domain>
+ <persistent>
+ <domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static' cpuset='1-4,8-20,525'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </memballoon>
+ </devices>
+ </domain>
+ </persistent>
+ <active>1</active>
+</domainsnapshot>
diff --git a/tests/domainsnapshotxml2xmltest.c b/tests/domainsnapshotxml2xmltest.c
index 2a07fe0..e51373d 100644
--- a/tests/domainsnapshotxml2xmltest.c
+++ b/tests/domainsnapshotxml2xmltest.c
@@ -204,6 +204,7 @@ mymain(void)
DO_TEST_OUT("noparent", "9d37b878-a7cc-9f9a-b78f-49b3abad25a8", false);
DO_TEST_OUT("metadata", "c7a5fdbd-edaf-9455-926a-d65c16db1809", false);
DO_TEST_OUT("external_vm_redefine", "c7a5fdbd-edaf-9455-926a-d65c16db1809", false);
+ DO_TEST_OUT("active_inactive_domain", NULL, true);
DO_TEST_INOUT("empty", "9d37b878-a7cc-9f9a-b78f-49b3abad25a8", false, false);
DO_TEST_INOUT("noparent", "9d37b878-a7cc-9f9a-b78f-49b3abad25a8", false, false);
--
1.8.3.1
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