Ejects a volume.
This is an asynchronous operation, and is finished by calling eject_with_operation.end with the
this and AsyncResult data returned in the
callback.
| this |
a Volume |
| flags |
flags affecting the unmount if required for eject |
| mount_operation |
a MountOperation or null to avoid user interaction |
| cancellable |
optional Cancellable object, null to ignore |
| callback |
a AsyncReadyCallback, or null |
| user_data |
user data passed to |