def _configure(self, dev, size, wwn, write_back):
self._check_self()
block_type = get_blockdev_type(dev)
if block_type is None: # a file
if os.path.exists(os.path.realpath(dev)) and not os.path.isfile(dev):
raise RTSLibError("Path not to a file or block device")
if size is None:
raise RTSLibError("Path is to a file, size needed")
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else: # a block device
# size is ignored but we can't raise an exception because
# dump() saves it and thus restore() will call us with it.
if block_type != 0:
raise RTSLibError("Device is not a TYPE_DISK block device")
if is_dev_in_use(dev):
raise RTSLibError("Device %s is already in use" % dev)
self._control("fd_dev_name=%s" % dev)
if write_back:
self.set_attribute("emulate_write_cache", 1)
self._control("fd_buffered_io=%d" % write_back)
self._set_udev_path(dev)
self._enable()
super(FileIOStorageObject, self)._configure(wwn)
def _configure(self, dev, size, wwn, write_back):
self._check_self()
block_type = get_blockdev_type(dev)
if block_type is None: # a file
if os.path.exists(os.path.realpath(dev)) and not os.path.isfile(dev):
raise RTSLibError("Path not to a file or block device")
if size is None:
raise RTSLibError("Path is to a file, size needed")
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else: # a block device
# size is ignored but we can't raise an exception because
# dump() saves it and thus restore() will call us with it.
if block_type != 0:
raise RTSLibError("Device is not a TYPE_DISK block device")
if is_dev_in_use(dev):
raise RTSLibError("Device %s is already in use" % dev)
self._control("fd_dev_name=%s" % dev)
if write_back:
self.set_attribute("emulate_write_cache", 1)
self._control("fd_buffered_io=%d" % write_back)
self._set_udev_path(dev)
self._enable()
super(FileIOStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device %s is not a TYPE_DISK block device" % dev)
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use" % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device %s is not a TYPE_DISK block device" % dev)
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use" % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly, write_back):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use." % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
if write_back:
self.set_attribute("emulate_write_cache", 1)
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly, write_back):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because " +
"device %s is already in use." % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
if write_back:
self.set_attribute("emulate_write_cache", 1)
super(BlockStorageObject, self)._configure(wwn)
def _is_block(self):
return get_blockdev_type(self.udev_path) is not None
def _is_block(self):
return get_blockdev_type(self.udev_path) is not None
