flags affecting the operation
optional #GCancellable object, %NULL to ignore
a #GAsyncReadyCallback to call when the request is satisfied, or %NULL
the data to pass to callback function
Deprecated: Use g_file_unmount_mountable_with_operation() instead.
Unmounts a file of type G_FILE_TYPE_MOUNTABLE.
If @cancellable is not %NULL, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
When the operation is finished, @callback will be called. You can then call g_file_unmount_mountable_finish() to get the result of the operation.