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Revert "snapshot: Add virDomainSnapshotObjListFormat"

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This reverts commit 86c0ed6f70, and
subsequent refactorings of the function into new files.  There are no
callers of this function - I had originally proposed it for
implementing a new bulk snapshot API, but that proved to be too
invasive given RPC limits. I also tried using it for streamlining how
the qemu driver stores snapshot state across libvirtd restarts
internally, but in the end, the risks of a new internal format
outweighed the benefits of one file per snapshot.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Eric Blake 2019-03-25 14:46:18 -05:00
parent 57d252c740
commit 0b4fac6afd
5 changed files with 1 additions and 77 deletions
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2
src/conf/snapshot_conf.c
View File

@ -787,7 +787,7 @@ virDomainSnapshotDiskDefFormat(virBufferPtr buf,
/* Append XML describing def into buf. Return 0 on success, or -1 on
* failure with buf cleared. */
int
static int
virDomainSnapshotDefFormatInternal(virBufferPtr buf,
const char *uuidstr,
virDomainSnapshotDefPtr def,

7
src/conf/snapshot_conf.h
View File

@ -119,13 +119,6 @@ char *virDomainSnapshotDefFormat(const char *uuidstr,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags);
int virDomainSnapshotDefFormatInternal(virBufferPtr buf,
const char *uuidstr,
virDomainSnapshotDefPtr def,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags);
int virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr snapshot,
int default_snapshot,
bool require_match);

61
src/conf/virdomainsnapshotobjlist.c
View File

@ -39,67 +39,6 @@ struct _virDomainSnapshotObjList {
};
/* Struct and callback function used as a hash table callback; each call
* appends another snapshot XML to buf, with the caller clearing the
* buffer if any callback fails. */
struct virDomainSnapshotFormatData {
virBufferPtr buf;
const char *uuidstr;
virCapsPtr caps;
virDomainXMLOptionPtr xmlopt;
unsigned int flags;
};
static int
virDomainSnapshotFormatOne(void *payload,
const void *name ATTRIBUTE_UNUSED,
void *opaque)
{
virDomainMomentObjPtr snap = payload;
struct virDomainSnapshotFormatData *data = opaque;
return virDomainSnapshotDefFormatInternal(data->buf, data->uuidstr,
virDomainSnapshotObjGetDef(snap),
data->caps, data->xmlopt,
data->flags);
}
/* Format the XML for all snapshots in the list into buf. @flags is
* virDomainSnapshotFormatFlags. On error, clear the buffer and return
* -1. */
int
virDomainSnapshotObjListFormat(virBufferPtr buf,
const char *uuidstr,
virDomainSnapshotObjListPtr snapshots,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags)
{
struct virDomainSnapshotFormatData data = {
.buf = buf,
.uuidstr = uuidstr,
.caps = caps,
.xmlopt = xmlopt,
.flags = flags,
};
virCheckFlags(VIR_DOMAIN_SNAPSHOT_FORMAT_SECURE, -1);
virBufferAddLit(buf, "<snapshots");
virBufferEscapeString(buf, " current='%s'",
virDomainSnapshotGetCurrentName(snapshots));
virBufferAddLit(buf, ">\n");
virBufferAdjustIndent(buf, 2);
if (virDomainSnapshotForEach(snapshots, virDomainSnapshotFormatOne,
&data) < 0) {
virBufferFreeAndReset(buf);
return -1;
}
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</snapshots>\n");
return 0;
}
virDomainMomentObjPtr
virDomainSnapshotAssignDef(virDomainSnapshotObjListPtr snapshots,
virDomainSnapshotDefPtr def)

7
src/conf/virdomainsnapshotobjlist.h
View File

@ -30,13 +30,6 @@
virDomainSnapshotObjListPtr virDomainSnapshotObjListNew(void);
void virDomainSnapshotObjListFree(virDomainSnapshotObjListPtr snapshots);
int virDomainSnapshotObjListFormat(virBufferPtr buf,
const char *uuidstr,
virDomainSnapshotObjListPtr snapshots,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
unsigned int flags);
virDomainMomentObjPtr virDomainSnapshotAssignDef(virDomainSnapshotObjListPtr snapshots,
virDomainSnapshotDefPtr def);

1
src/libvirt_private.syms
View File

@ -996,7 +996,6 @@ virDomainSnapshotForEach;
virDomainSnapshotGetCurrent;
virDomainSnapshotGetCurrentName;
virDomainSnapshotIsCurrentName;
virDomainSnapshotObjListFormat;
virDomainSnapshotObjListFree;
virDomainSnapshotObjListGetNames;
virDomainSnapshotObjListNew;