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extra error checks for call-with-temp-dir

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Alex Shinn 2015-04-23 18:31:22 +09:00
parent 28011727e4
commit ef86d2ff65
1 changed files with 10 additions and 6 deletions
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16
lib/chibi/temp-file.scm
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@ -26,10 +26,10 @@
res)))))))))
(define (call-with-temp-dir template proc)
(let ((base (string-append
"/tmp/" template
"-" (number->string (current-process-id)) "-"
(number->string (exact (round (current-second)))) "-")))
(let* ((pid (current-process-id))
(base (string-append
"/tmp/" template "-" (number->string pid) "-"
(number->string (exact (round (current-second)))) "-")))
(let lp ((i 0))
(let ((path (string-append base (number->string i))))
(cond
@ -39,5 +39,9 @@
(lp (+ i 1)))
((create-directory path #o700)
(let ((res (proc path)))
(delete-file-hierarchy path)
res)))))))
;; sanity check for host threading issues and broken forks
(if (equal? pid (current-process-id))
(delete-file-hierarchy path))
res))
(else
(error "failed to create directory" path)))))))