def domain_restore_fd(self, fd):
"""Restore a domain from the given file descriptor."""
try:
return XendCheckpoint.restore(self, fd)
except:
# I don't really want to log this exception here, but the error
# handling in the relocation-socket handling code (relocate.py) is
# poor, so we need to log this for debugging.
log.exception("Restore failed")
raise
def domain_save(self, domid, dst):
"""Start saving a domain to file.
@param dst: destination file
"""
try:
dominfo = self.domain_lookup_by_name_or_id_nr(domid)
if not dominfo:
raise XendInvalidDomain(str(domid))
if dominfo.getDomid() == PRIV_DOMAIN:
raise XendError("Cannot save privileged domain %i" % domid)
fd = os.open(dst, os.O_WRONLY | os.O_CREAT | os.O_TRUNC)
try:
# For now we don't support 'live checkpoint'
return XendCheckpoint.save(fd, dominfo, False)
finally:
os.close(fd)
except OSError, ex:
raise XendError("can't write guest state file %s: %s" %
(dst, ex[1]))
raise XendInvalidDomain(str(domid))
if dominfo.getDomid() == PRIV_DOMAIN:
raise XendError("Cannot migrate privileged domain %i" % domid)
if port == 0:
port = xroot.get_xend_relocation_port()
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((dst, port))
except socket.error, err:
raise XendError("can't connect: %s" % err[1])
sock.send("receive\n")
sock.recv(80)
XendCheckpoint.save(sock.fileno(), dominfo, live)
def domain_save(self, domid, dst):
"""Start saving a domain to file.
@param dst: destination file
"""
try:
dominfo = self.domain_lookup_by_name_or_id_nr(domid)
if not dominfo:
raise XendInvalidDomain(str(domid))
if dominfo.getDomid() == PRIV_DOMAIN:
raise XendError("Cannot save privileged domain %i" % domid)