Function gio_sys::g_drive_stop

pub unsafe extern "C" fn g_drive_stop(
    drive: *mut GDrive, 
    flags: GMountUnmountFlags, 
    mount_operation: *mut GMountOperation, 
    cancellable: *mut GCancellable, 
    callback: GAsyncReadyCallback, 
    user_data: gpointer
)