On Wed, Sep 24, 2014 at 14:45:02 +0200, Jiri Denemark wrote:
> On Tue, Sep 23, 2014 at 16:09:58 +0200, Cristian Klein wrote:
> > The user first start migration using the `VIR_MIGRATE_POSTCOPY` flag,
> > then calls `virDomainMigrateStartPostCopy` asynchronously to switch from
> > pre-copy to post-copy.
> >
> > Signed-off-by: Cristian Klein <cristian.klein@xxxxxxxxx>
> > ---
> > include/libvirt/libvirt.h.in | 2 ++
> > src/driver.h | 4 ++++
> > src/libvirt.c | 37 +++++++++++++++++++++++++++++++++++++
> > src/libvirt_public.syms | 5 +++++
> > 4 files changed, 48 insertions(+)
> >
> > diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
> > index bdc33c6..eabedfa 100644
> > --- a/include/libvirt/libvirt.h.in
> > +++ b/include/libvirt/libvirt.h.in
> > @@ -1346,6 +1346,8 @@ int virDomainMigrateToURI3(virDomainPtr domain,
> > unsigned int nparams,
> > unsigned int flags);
> >
> > +int virDomainMigrateStartPostCopy (virDomainPtr domain);
> > +
> > int virDomainMigrateSetMaxDowntime (virDomainPtr domain,
> > unsigned long long downtime,
> > unsigned int flags);
> > diff --git a/src/driver.h b/src/driver.h
> > index bb748c4..6866ccd 100644
> > --- a/src/driver.h
> > +++ b/src/driver.h
> > @@ -1212,6 +1212,9 @@ typedef int
> > virDomainStatsRecordPtr **retStats,
> > unsigned int flags);
> >
> > +typedef int
> > +(*virDrvDomainMigrateStartPostCopy)(virDomainPtr domain);
> > +
> > typedef struct _virDriver virDriver;
> > typedef virDriver *virDriverPtr;
> >
> > @@ -1435,6 +1438,7 @@ struct _virDriver {
> > virDrvNodeGetFreePages nodeGetFreePages;
> > virDrvConnectGetDomainCapabilities connectGetDomainCapabilities;
> > virDrvConnectGetAllDomainStats connectGetAllDomainStats;
> > + virDrvDomainMigrateStartPostCopy domainMigrateStartPostCopy;
> > };
> >
> >
> > diff --git a/src/libvirt.c b/src/libvirt.c
> > index 33aeafa..e685da2 100644
> > --- a/src/libvirt.c
> > +++ b/src/libvirt.c
> > @@ -17803,6 +17803,43 @@ virDomainMigrateSetCompressionCache(virDomainPtr domain,
> >
> >
> > /**
> > + * virDomainMigrateStartPostCopy:
> > + * @domain: a domain object
> > + *
> > + * Starts post-copy migration. This function has to be called while
> > + * migration (initially pre-copy) is in progress. The migration operation
> > + * must be called with the VIR_MIGRATE_POSTCOPY flag.
> > + *
> > + * Returns 0 in case of success, -1 otherwise.
> > + */
> > +int
> > +virDomainMigrateStartPostCopy(virDomainPtr domain)
Oops, I forgot to mention we should add unsigned int flags parameter for
this API just in case we need it in the future.
Jirka
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