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(define (cmd-run-proc-each-line cmd proc . params)
;; (print "Called with cmd=" cmd ", proc=" proc ", params=" params)
(handle-exceptions
exn
(begin
(print "ERROR: Failed to run command: " cmd " " (string-intersperse params " "))
#f)
(let-values (((fh fho pid) (if (null? params)
(process cmd)
(process cmd params))))
(let loop ((curr (read-line fh))
(result '()))
(if (not (eof-object? curr))
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(define (cmd-run-proc-each-line cmd proc . params)
;; (print "Called with cmd=" cmd ", proc=" proc ", params=" params)
(handle-exceptions
exn
(begin
(print "ERROR: Failed to run command: " cmd " " (string-intersperse params " "))
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
#f)
(let-values (((fh fho pid) (if (null? params)
(process cmd)
(process cmd params))))
(let loop ((curr (read-line fh))
(result '()))
(if (not (eof-object? curr))
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(let loop ((inl (read-line))
(res '()))
(if (eof-object? inl)
(reverse res)
(let ((pid (string->number inl)))
(if proc (proc pid))
(loop (read-line) (cons pid res))))))))
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(let loop ((inl (read-line))
(res '()))
(if (eof-object? inl)
(reverse res)
(let ((pid (string->number inl)))
(if proc (proc pid))
(loop (read-line) (cons pid res))))))))
(define (process:alive? pid)
(handle-exceptions
exn
;; possibly pid is a process not a child, look in /proc to see if it is running still
(file-exists? (conc "/proc/" pid))
(let-values (((rpid exit-type exit-signal)(process-wait pid #t)))
(and (number? rpid)
(equal? rpid pid)))))
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