Communicating between threads

BTW, how does one cite the contents of a message one is responing to in this forum?

First off: I'm not about to rewrite the C program in Swift. That's absolutely outside of any consideraton in this case.

a) complexity
b) speed

Second: stdout/stderr is already successfully redirected to the textView (see otherthread in this forum).

Will think about your idea of calling the program that way but I don't see much chance.

Imagine the program is a Lisp interpreter.

--
Christoph