Greetings!
Robert Boyer <[EMAIL PROTECTED]> writes:
> > How about this:
>
> Your implementation does not satisfy the property that it leaves me alone in
> my current GCL to continue work. It also does not satisfy the property that
> it generates an output file name based upon the file being compiled. I think
> that the following is what I want.
>
Great! Seems like this could really be integrated into a "parallel
make aka make -j" in a lisp defsystem implementation. Thanks! I'll
try putting something like this into gcl_cmpmain.lsp if you don't
mind.
> Really cool stuff, this fork command. Thank you!
>
> Bob
>
> (defun eval-and-ignore-in-the-background (form)
Just wanted to mention that this macro is currently closely akin to
the si::background macro. The question of error handling in the child
is a good one deserving some pondering. Hmmm... :-). Doing this as a
macro though lets one skip the eval and execute compiled code inline.
Take care,
> (let ((pair (si::fork)))
> (cond ((= (car pair) 0)
> ;; So here we are in the child process. Fortunately, we
> ;; already have the form to eval at hand, don't need any
> ;; I/O, and so we just eval it and quit.
> (ignore-errors (eval form))
> ;; ignore-errors avoids going into the debugger
> (bye))
> (t
> ;; But here we are in the parent process. The child is
> ;; merrily running in the background, we trust, so we
> ;; simply return the process id of the child in case
> ; anyone cares.
> (car pair)))))
>
> (defun compile-these-files-in-the-background (l)
> (loop for x in l
> do
> (cond ((not (stringp x)) (error "Not a string: ~a." x))
> ((probe-file x)
> (eval-and-ignore-in-the-background
> `(with-open-file (s (concatenate 'string ,x
> ".compiler-output.text")
> :direction :output
> :if-exists :rename-and-delete)
> (let ((*standard-output* s))
> (compile-file ,x)))))
> (t (error "No such file: ~a." x)))))
>
> (defun test ()
> (compile-these-files-in-the-background
> '("foo1.lisp" "foo2.lisp" "foo3.lisp")))
>
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--
Camm Maguire [EMAIL PROTECTED]
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"The earth is but one country, and mankind its citizens." -- Baha'u'llah
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