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(equal? (address-info-type x) "tcp"))
(address-infos (get-host-name)))))
;;======================================================================
;; Other Utils
;;======================================================================
;; 1.db => (10 . 9) ;; (total . hits)
(let* ((cs (current-seconds))
(key (inexact->exact (quotient cs 10))))
(directory-fold
dbdir
(lambda (res fname)
(cons fname res))
'())))
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(equal? (address-info-type x) "tcp"))
(address-infos (get-host-name)))))
;;======================================================================
;; Other Utils
;;======================================================================
(defstruct jstats
(count 0)
(jcount (make-hash-table)) ;; 1.db => journal_count
)
;; timeblk => jstats
(define *journal-stats* (make-hash-table))
;; monte-carlo-esque random sampling of journal files
;; for all the files:
;; if .journal
;; update stats +1 +1
;; update stats +1 0
;;
(define (tt:write-load-tracking dbdir)
(let* ((cs (current-seconds))
(key (inexact->exact (quotient cs 10)))
(old (- key 4)) ;; 4 x 10 seconds ago
(jstat (if (hash-table-exists? *journal-stats* key)
(hash-table-ref *journal-stats* key )
(let ((new (make-jstats)))
(hash-table-set! *journal-stats* key new)
new))))
;; clear out records over 30s old
(for-each
(lambda (key)
(if (< key old)
(hash-table-delete! *journal-stats* key)))
(hash-table-keys *journal-stats*))
;; increment our count of observations
(jstats-count-set! jstat (+ (jstats-count jstat) 1))
;; now find and increment journal file counts
(directory-fold
(lambda (fname res)
;; is it a journal file?
(let ((parts (string-match "^(.*\\.db)-journal.*" fname)))
(match parts
((_ dbfname)
(hash-table-set! (jstats-jcount jstat) dbfname
(+ (hash-table-ref/default (jstats-jcount jstat) dbfname 0) 1)
))
)))
'()
dbdir
)))
;; megatest> (import tcp-transportmod)
;; megatest> (tt:write-load-tracking ".mtdb")
;; megatest> (hash-table-keys *journal-stats*)
;; (172060297)
;; megatest> (jstats->alist (hash-table-ref *journal-stats* 172060297))
;; ((count . 1) (jcount . #<hash-table (1)>))
;; megatest> (jstats-jcount (hash-table-ref *journal-stats* 172060297))
;; #<hash-table (1)>
;; megatest> (hash-table->alist (jstats-jcount (hash-table-ref *journal-stats* 172060297)))
;; (("1.db" . 4))
)
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