[libvirt] [PATCH v2 05/11] domain: Expand virDomainDefFormatInternal with snapshots
Eric Blake
eblake at redhat.com
Sat Feb 23 21:24:39 UTC 2019
Make it possible to grab all snapshot XMLs via a single API
call, by adding a new internal flag. All callers are adjusted,
for now passing NULL and not using the new flag. A new wrapper
virDomainDefFormatFull() is added to make it easier for the
next patch to add a few callers without having to revisit all
existing clients of virDomainDefFormat().
Signed-off-by: Eric Blake <eblake at redhat.com>
---
src/conf/domain_conf.h | 8 +++++
src/conf/domain_conf.c | 58 +++++++++++++++++++++++++++++++------
src/conf/snapshot_conf.c | 4 +--
src/network/bridge_driver.c | 3 +-
src/qemu/qemu_domain.c | 2 +-
5 files changed, 62 insertions(+), 13 deletions(-)
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 9bccd8bcd1..9b13c147da 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3047,6 +3047,7 @@ typedef enum {
VIR_DOMAIN_DEF_FORMAT_ALLOW_ROM = 1 << 6,
VIR_DOMAIN_DEF_FORMAT_ALLOW_BOOT = 1 << 7,
VIR_DOMAIN_DEF_FORMAT_CLOCK_ADJUST = 1 << 8,
+ VIR_DOMAIN_DEF_FORMAT_SNAPSHOTS = 1 << 9,
} virDomainDefFormatFlags;
/* Use these flags to skip specific domain ABI consistency checks done
@@ -3124,12 +3125,19 @@ unsigned int virDomainDefFormatConvertXMLFlags(unsigned int flags);
char *virDomainDefFormat(virDomainDefPtr def,
virCapsPtr caps,
unsigned int flags);
+char *virDomainDefFormatFull(virDomainDefPtr def,
+ virCapsPtr caps,
+ virDomainSnapshotObjListPtr snapshots,
+ virDomainSnapshotObjPtr current_snapshot,
+ unsigned int flags);
char *virDomainObjFormat(virDomainXMLOptionPtr xmlopt,
virDomainObjPtr obj,
virCapsPtr caps,
unsigned int flags);
int virDomainDefFormatInternal(virDomainDefPtr def,
virCapsPtr caps,
+ virDomainSnapshotObjListPtr snapshots,
+ virDomainSnapshotObjPtr current_snapshot,
unsigned int flags,
virBufferPtr buf,
virDomainXMLOptionPtr xmlopt);
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index ceeb247ef4..46ae79e738 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1,7 +1,7 @@
/*
* domain_conf.c: domain XML processing
*
- * Copyright (C) 2006-2016 Red Hat, Inc.
+ * Copyright (C) 2006-2019 Red Hat, Inc.
* Copyright (C) 2006-2008 Daniel P. Berrange
* Copyright (c) 2015 SUSE LINUX Products GmbH, Nuernberg, Germany.
*
@@ -28212,6 +28212,8 @@ virDomainVsockDefFormat(virBufferPtr buf,
int
virDomainDefFormatInternal(virDomainDefPtr def,
virCapsPtr caps,
+ virDomainSnapshotObjListPtr snapshots,
+ virDomainSnapshotObjPtr current_snapshot,
unsigned int flags,
virBufferPtr buf,
virDomainXMLOptionPtr xmlopt)
@@ -28229,9 +28231,16 @@ virDomainDefFormatInternal(virDomainDefPtr def,
VIR_DOMAIN_DEF_FORMAT_STATUS |
VIR_DOMAIN_DEF_FORMAT_ACTUAL_NET |
VIR_DOMAIN_DEF_FORMAT_PCI_ORIG_STATES |
- VIR_DOMAIN_DEF_FORMAT_CLOCK_ADJUST,
+ VIR_DOMAIN_DEF_FORMAT_CLOCK_ADJUST |
+ VIR_DOMAIN_DEF_FORMAT_SNAPSHOTS,
-1);
+ if ((flags & VIR_DOMAIN_DEF_FORMAT_SNAPSHOTS) && !snapshots) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("snapshots requested but not provided"));
+ goto error;
+ }
+
if (!(type = virDomainVirtTypeToString(def->virtType))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected domain type %d"), def->virtType);
@@ -29016,6 +29025,23 @@ virDomainDefFormatInternal(virDomainDefPtr def,
virDomainSEVDefFormat(buf, def->sev);
+ if (flags & VIR_DOMAIN_DEF_FORMAT_SNAPSHOTS) {
+ unsigned int snapflags = flags & VIR_DOMAIN_DEF_FORMAT_SECURE ?
+ VIR_DOMAIN_SNAPSHOT_FORMAT_SECURE : 0;
+
+ virBufferAddLit(buf, "<snapshots");
+ if (current_snapshot)
+ virBufferEscapeString(buf, " current='%s'",
+ current_snapshot->def->name);
+ virBufferAddLit(buf, ">\n");
+ virBufferAdjustIndent(buf, 2);
+ if (virDomainSnapshotObjListFormat(buf, uuidstr, snapshots, caps,
+ xmlopt, snapflags))
+ goto error;
+ virBufferAdjustIndent(buf, -2);
+ virBufferAddLit(buf, "</snapshots>\n");
+ }
+
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</domain>\n");
@@ -29051,16 +29077,29 @@ unsigned int virDomainDefFormatConvertXMLFlags(unsigned int flags)
}
+char *
+virDomainDefFormatFull(virDomainDefPtr def, virCapsPtr caps,
+ virDomainSnapshotObjListPtr snapshots,
+ virDomainSnapshotObjPtr current_snapshot,
+ unsigned int flags)
+{
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+ virCheckFlags(VIR_DOMAIN_DEF_FORMAT_COMMON_FLAGS |
+ VIR_DOMAIN_DEF_FORMAT_SNAPSHOTS, NULL);
+ if (virDomainDefFormatInternal(def, caps, snapshots, current_snapshot,
+ flags, &buf, NULL) < 0)
+ return NULL;
+
+ return virBufferContentAndReset(&buf);
+}
+
+
char *
virDomainDefFormat(virDomainDefPtr def, virCapsPtr caps, unsigned int flags)
{
- virBuffer buf = VIR_BUFFER_INITIALIZER;
-
virCheckFlags(VIR_DOMAIN_DEF_FORMAT_COMMON_FLAGS, NULL);
- if (virDomainDefFormatInternal(def, caps, flags, &buf, NULL) < 0)
- return NULL;
-
- return virBufferContentAndReset(&buf);
+ return virDomainDefFormatFull(def, caps, NULL, NULL, flags);
}
@@ -29092,7 +29131,8 @@ virDomainObjFormat(virDomainXMLOptionPtr xmlopt,
xmlopt->privateData.format(&buf, obj) < 0)
goto error;
- if (virDomainDefFormatInternal(obj->def, caps, flags, &buf, xmlopt) < 0)
+ if (virDomainDefFormatInternal(obj->def, caps, NULL, NULL, flags, &buf,
+ xmlopt) < 0)
goto error;
virBufferAdjustIndent(&buf, -2);
diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index a572da5b58..963dc10247 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -754,8 +754,8 @@ virDomainSnapshotDefFormatInternal(virBufferPtr buf,
}
if (def->dom) {
- if (virDomainDefFormatInternal(def->dom, caps, domainflags, buf,
- xmlopt) < 0)
+ if (virDomainDefFormatInternal(def->dom, caps, NULL, NULL, domainflags,
+ buf, xmlopt) < 0)
goto error;
} else if (uuidstr) {
virBufferAddLit(buf, "<domain>\n");
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index b3ca5b8a15..bf2045a753 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -226,7 +226,8 @@ networkRunHook(virNetworkObjPtr obj,
goto cleanup;
if (virNetworkDefFormatBuf(&buf, def, 0) < 0)
goto cleanup;
- if (dom && virDomainDefFormatInternal(dom, NULL, 0, &buf, NULL) < 0)
+ if (dom && virDomainDefFormatInternal(dom, NULL, NULL, NULL, 0, &buf,
+ NULL) < 0)
goto cleanup;
virBufferAdjustIndent(&buf, -2);
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 84b923fbbb..cb1665c8f9 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -7881,7 +7881,7 @@ qemuDomainDefFormatBufInternal(virQEMUDriverPtr driver,
}
format:
- ret = virDomainDefFormatInternal(def, caps,
+ ret = virDomainDefFormatInternal(def, caps, NULL, NULL,
virDomainDefFormatConvertXMLFlags(flags),
buf, driver->xmlopt);
--
2.20.1
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