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;;
;; mod-time host port start-time pid
;;
;; sort by start-time descending. I.e. get the oldest first. Young servers will thus drop off
;; and servers should stick around for about two hours or so.
;;
(define (server:get-best srvlst)
(let ((now (current-seconds)))
(sort
(filter (lambda (rec)
(if (and (list? rec)
(> (length rec) 2))
(let ((start-time (list-ref rec 3))
(mod-time (list-ref rec 0)))
;; (print "start-time: " start-time " mod-time: " mod-time)
(and start-time mod-time
(> (- now start-time) 0) ;; been running at least 0 seconds
(< (- now mod-time) 16) ;; still alive - file touched in last 16 seconds
(< (- now start-time)
(+ (- (string->number (or (configf:lookup *configdat* "server" "runtime") "3600"))
180)
(random 360))) ;; under one hour running time +/- 180
))
#f))
srvlst)
(lambda (a b)
(< (list-ref a 3)
(list-ref b 3))))))
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;;
;; mod-time host port start-time pid
;;
;; sort by start-time descending. I.e. get the oldest first. Young servers will thus drop off
;; and servers should stick around for about two hours or so.
;;
(define (server:get-best srvlst)
(let* ((nums (server:get-num-servers))
(now (current-seconds))
(slst (sort
(filter (lambda (rec)
(if (and (list? rec)
(> (length rec) 2))
(let ((start-time (list-ref rec 3))
(mod-time (list-ref rec 0)))
;; (print "start-time: " start-time " mod-time: " mod-time)
(and start-time mod-time
(> (- now start-time) 0) ;; been running at least 0 seconds
(< (- now mod-time) 16) ;; still alive - file touched in last 16 seconds
(< (- now start-time)
(+ (- (string->number (or (configf:lookup *configdat* "server" "runtime") "3600"))
180)
(random 360))) ;; under one hour running time +/- 180
))
#f))
srvlst)
(lambda (a b)
(< (list-ref a 3)
(list-ref b 3))))))
(if (> (length slst) nums)
(take slst nums)
slst)))
(define (server:get-first-best areapath)
(let ((srvrs (server:get-best (server:get-list areapath))))
(if (and srvrs
(not (null? srvrs)))
(car srvrs)
#f)))
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(let ((num-ok (length (server:get-best (server:get-list areapath)))))
(if (< num-ok 1) ;; if there are no decent candidates for servers then try starting a new one
(server:kind-run areapath))
(thread-sleep! 5)
(loop (server:check-if-running areapath)))))))
(define server:try-running server:run) ;; there is no more per-run servers ;; REMOVE ME. BUG.
;; no longer care if multiple servers are started by accident. older servers will drop off in time.
;;
(define (server:check-if-running areapath #!key (numservers "2"))
(let* ((ns (string->number
(or (configf:lookup *configdat* "server" "numservers") numservers)))
(servers (server:get-best (server:get-list areapath))))
;; (print "servers: " servers " ns: " ns)
(if (or (and servers
(null? servers))
(not servers)
(and (list? servers)
(< (length servers) (random ns)))) ;; somewhere between 0 and numservers
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(let ((num-ok (length (server:get-best (server:get-list areapath)))))
(if (< num-ok 1) ;; if there are no decent candidates for servers then try starting a new one
(server:kind-run areapath))
(thread-sleep! 5)
(loop (server:check-if-running areapath)))))))
(define server:try-running server:run) ;; there is no more per-run servers ;; REMOVE ME. BUG.
(define (server:get-num-servers #!key (numservers 2))
(let ((ns (string->number
(or (configf:lookup *configdat* "server" "numservers") "notanumber"))))
(or ns numservers)))
;; no longer care if multiple servers are started by accident. older servers will drop off in time.
;;
(define (server:check-if-running areapath) ;; #!key (numservers "2"))
(let* ((ns (server:get-num-servers))
(servers (server:get-best (server:get-list areapath))))
;; (print "servers: " servers " ns: " ns)
(if (or (and servers
(null? servers))
(not servers)
(and (list? servers)
(< (length servers) (random ns)))) ;; somewhere between 0 and numservers
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