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Tshell

Tshell-ensure

Ensure that shells are available for running sub-processes (may fork ACL2).

Signature
(tshell-ensure &optional (n '1)) → nil
Arguments: n — How many shells to start.
Guard (posp n).

If you want to use this in a book, you can wrap it in a value-triple, e.g.,

(value-triple (tshell-ensure))

It's also typically useful to put this before calls of tshell-call or tshell-run-background, to start up the shells if the user hadn't already gotten them started earlier.

This is essentially just shellpool:ensure; see the Shellpool API documentation for details.

Definitions and Theorems

Function: tshell-ensure-fn

(defun tshell-ensure-fn (n)
  (declare (xargs :guard (posp n)))
  (declare (ignorable n))
  (let ((__function__ 'tshell-ensure))
    (declare (ignorable __function__))
    (cw "Warning: under-the-hood definition of ~s0 not installed?"
        __function__)))