pce:in_pce_thread

in_pce_thread_sync(:Goal) is semidet: Same as in_pce_thread/1, but wait for Goal to be completed. Success depends on the success of executing Goal. If Goal throws an exception, this exception is re-thrown by in_pce_thread/1.
Possible bindings of Goal are returned, but be aware that the term has been copied. If in_pce_thread_sync/1 is called in the thread running pce, it behaves as once/1.