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Slight gcprof refactor

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* module/statprof.scm (gcprof): Refactor a bit.
This commit is contained in:
Andy Wingo 2014-02-28 10:48:41 +01:00
parent e68ed8397d
commit a7ede58d01
1 changed files with 12 additions and 25 deletions
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37
module/statprof.scm
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@ -729,9 +729,7 @@ whole call tree, for later analysis. Use @code{statprof-fetch-stacks} or
(let ((state (fresh-profiler-state #:full-stacks? full-stacks?)))
(parameterize ((profiler-state state))
(define (gc-callback)
(cond
((inside-profiler? state))
(else
(unless (inside-profiler? state)
(set-inside-profiler?! state #t)
;; FIXME: should be able to set an outer frame for the stack cut
@ -745,35 +743,24 @@ whole call tree, for later analysis. Use @code{statprof-fetch-stacks} or
(accumulate-time state stop-time)
(set-last-start-time! state (get-internal-run-time)))
(set-inside-profiler?! state #f))))
(define (start)
(set-profile-level! state (+ (profile-level state) 1))
(when (= (profile-level state) 1)
(set-remaining-prof-time! state 0)
(set-last-start-time! state (get-internal-run-time))
(set-gc-time-taken! state (assq-ref (gc-stats) 'gc-time-taken))
(add-hook! after-gc-hook gc-callback)
#t))
(define (stop)
(set-profile-level! state (- (profile-level state) 1))
(when (zero? (profile-level state))
(set-gc-time-taken! state
(- (assq-ref (gc-stats) 'gc-time-taken)
(gc-time-taken state)))
(remove-hook! after-gc-hook gc-callback)
(accumulate-time state (get-internal-run-time))
(set-last-start-time! state #f)))
(set-inside-profiler?! state #f)))
(dynamic-wind
(lambda ()
(start))
(set-profile-level! state 1)
(set-last-start-time! state (get-internal-run-time))
(set-gc-time-taken! state (assq-ref (gc-stats) 'gc-time-taken))
(add-hook! after-gc-hook gc-callback))
(lambda ()
(let lp ((i loop))
(unless (zero? i)
(thunk)
(lp (1- i)))))
(lambda ()
(stop)
(remove-hook! after-gc-hook gc-callback)
(set-gc-time-taken! state
(- (assq-ref (gc-stats) 'gc-time-taken)
(gc-time-taken state)))
(accumulate-time state (get-internal-run-time))
(set-profile-level! state 0)
(statprof-display))))))