execution of lua files within orocos


I've a question concerning the execution of lua files within orocos:

I have following case:
a deploy.ops script containing:
loadService ("Deployer","Lua")

and following case:
a deploy.lua script containing:
driver_file=dofile("driver.lua") --which returns a table
driver_file.config() -- the actual call of a another lua deploy script from my deploy script

In both cases I see things from the called script (driver.lua) printed between things of the rest of my deploy file.
Does it executes the lua file parallel in another thread?
Shouldn't it be blocking my deploy script until the execution of the lua file is finished?
Or is this due to slow response in the terminal?

thanks in advance,