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migration: move implementation check to branches in p2p

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This is more structured code so it will be easier to add branch for _PARAMS
protocol here. It is not a pure refactoring strictly speaking as we remove
scenarios for broken cases when driver defines V3 feature and implements
perform function. So it is additionally a more solid code.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
This commit is contained in:
Nikolay Shirokovskiy 2015-10-02 10:52:43 +03:00 committed by Jiri Denemark
parent e17ae3ccc2
commit 341216a0af
1 changed files with 8 additions and 6 deletions
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14
src/libvirt-domain.c
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@ -3339,23 +3339,25 @@ virDomainMigratePeer2PeerPlain(virDomainPtr domain,
dconnuri, NULLSTR(xmlin), NULLSTR(dname), NULLSTR(uri),
bandwidth, flags);
if (!domain->conn->driver->domainMigratePerform &&
!domain->conn->driver->domainMigratePerform3) {
virReportUnsupportedError();
return -1;
}
if (virDomainMigrateCheckNotLocal(dconnuri) < 0)
return -1;
if (VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn,
VIR_DRV_FEATURE_MIGRATION_V3)) {
VIR_DEBUG("Using migration protocol 3");
if (!domain->conn->driver->domainMigratePerform3) {
virReportUnsupportedError();
return -1;
}
return domain->conn->driver->domainMigratePerform3
(domain, xmlin, NULL, 0, NULL, NULL, dconnuri,
uri, flags, dname, bandwidth);
} else {
VIR_DEBUG("Using migration protocol 2");
if (!domain->conn->driver->domainMigratePerform) {
virReportUnsupportedError();
return -1;
}
if (xmlin) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Unable to change target guest XML during "