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(define (http-transport:client-connect iface port)
(let* ((login-res #f)
(serverdat (list iface port)))
(set! login-res (client:login serverdat))
(if (and (not (null? login-res))
(car login-res))
(begin
(debug:print-info 2 "Logged in and connected to " iface ":" port)
(set! *runremote* serverdat)
serverdat)
(begin
(debug:print-info 2 "Failed to login or connect to " iface ":" port)
(set! *runremote* #f)
#f))))
;; run http-transport:keep-running in a parallel thread to monitor that the db is being
;; used and to shutdown after sometime if it is not.
;;
(define (http-transport:keep-running)
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(define (http-transport:client-connect iface port)
(let* ((login-res #f)
(serverdat (list iface port)))
(set! login-res (client:login serverdat))
(if (and (not (null? login-res))
(car login-res))
(begin
(debug:print-info 0 "Logged in and connected to " iface ":" port)
(set! *runremote* serverdat)
serverdat)
(begin
(debug:print-info 0 "Failed to login or connect to " iface ":" port)
(set! *runremote* #f)
(set! *transport-type* 'fs)
#f))))
;; run http-transport:keep-running in a parallel thread to monitor that the db is being
;; used and to shutdown after sometime if it is not.
;;
(define (http-transport:keep-running)
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(begin
(sleep 4)
(loop))))))
(iface (car server-info))
(port (cadr server-info))
(last-access 0)
(tdb (tasks:open-db))
(spid (tasks:server-get-server-id tdb #f iface port #f))
(server-timeout (let ((tmo (config-lookup *configdat* "server" "timeout")))
(if (and (string? tmo)
(string->number tmo))
(* 60 60 (string->number tmo))
;; default to three days
(* 3 24 60)))))
(debug:print-info 2 "server-timeout: " server-timeout ", server pid: " spid " on " iface ":" port)
(let loop ((count 0))
(thread-sleep! 4) ;; no need to do this very often
;; NB// sync currently does NOT return queue-length
(let () ;; (queue-len (cdb:client-call server-info 'sync #t 1)))
;; (print "Server running, count is " count)
(if (< count 1) ;; 3x3 = 9 secs aprox
(loop (+ count 1)))
;; Check that iface and port have not changed (can happen if server port collides)
(mutex-lock! *heartbeat-mutex*)
(set! sdat *runremote*)
(mutex-unlock! *heartbeat-mutex*)
(if (not (equal? sdat (list iface port)))
(begin
(debug:print-info 1 "interface changed, refreshing iface and port info")
(set! iface (car sdat))
(set! port (cadr sdat))
(set! spid (tasks:server-get-server-id tdb #f iface port #f))))
;; NOTE: Get rid of this mechanism! It really is not needed...
(tasks:server-update-heartbeat tdb spid)
;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access
(mutex-lock! *heartbeat-mutex*)
(set! last-access *last-db-access*)
(mutex-unlock! *heartbeat-mutex*)
;; (debug:print 11 "last-access=" last-access ", server-timeout=" server-timeout)
(if (> (+ last-access server-timeout)
(current-seconds))
(begin
(debug:print-info 2 "Server continuing, seconds since last db access: " (- (current-seconds) last-access))
(loop 0))
(begin
(debug:print-info 0 "Starting to shutdown the server.")
;; need to delete only *my* server entry (future use)
(set! *time-to-exit* #t)
(tasks:server-deregister-self tdb (get-host-name))
(thread-sleep! 1)
(debug:print-info 0 "Max cached queries was " *max-cache-size*)
(debug:print-info 0 "Number of cached writes " *number-of-writes*)
(debug:print-info 0 "Average cached write time "
(if (eq? *number-of-writes* 0)
"n/a (no writes)"
(/ *writes-total-delay*
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(begin
(sleep 4)
(loop))))))
(iface (car server-info))
(port (cadr server-info))
(last-access 0)
(tdb (tasks:open-db))
(spid ;;(open-run-close tasks:server-get-server-id tasks:open-db #f iface port #f))
(tasks:server-get-server-id tdb #f iface port #f))
(server-timeout (let ((tmo (config-lookup *configdat* "server" "timeout")))
(if (and (string? tmo)
(string->number tmo))
(* 60 60 (string->number tmo))
;; default to three days
(* 3 24 60 60)))))
(debug:print-info 2 "server-timeout: " server-timeout ", server pid: " spid " on " iface ":" port)
(let loop ((count 0))
(thread-sleep! 4) ;; no need to do this very often
;; NB// sync currently does NOT return queue-length
(let () ;; (queue-len (cdb:client-call server-info 'sync #t 1)))
;; (print "Server running, count is " count)
(if (< count 1) ;; 3x3 = 9 secs aprox
(loop (+ count 1)))
;; Check that iface and port have not changed (can happen if server port collides)
(mutex-lock! *heartbeat-mutex*)
(set! sdat *runremote*)
(mutex-unlock! *heartbeat-mutex*)
(if (or (not (equal? sdat (list iface port)))
(not spid))
(begin
(debug:print-info 0 "interface changed, refreshing iface and port info")
(set! iface (car sdat))
(set! port (cadr sdat))
(set! spid (tasks:server-get-server-id tdb #f iface port #f))))
;; NOTE: Get rid of this mechanism! It really is not needed...
;; (open-run-close tasks:server-update-heartbeat tasks:open-db spid)
(tasks:server-update-heartbeat tdb spid)
;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access
(mutex-lock! *heartbeat-mutex*)
(set! last-access *last-db-access*)
(mutex-unlock! *heartbeat-mutex*)
;; (debug:print 11 "last-access=" last-access ", server-timeout=" server-timeout)
(if (> (+ last-access server-timeout)
(current-seconds))
(begin
(debug:print-info 2 "Server continuing, seconds since last db access: " (- (current-seconds) last-access))
(loop 0))
(begin
(debug:print-info 0 "Starting to shutdown the server.")
;; need to delete only *my* server entry (future use)
(set! *time-to-exit* #t)
(open-run-close tasks:server-deregister-self tasks:open-db (get-host-name))
(thread-sleep! 1)
(debug:print-info 0 "Max cached queries was " *max-cache-size*)
(debug:print-info 0 "Number of cached writes " *number-of-writes*)
(debug:print-info 0 "Average cached write time "
(if (eq? *number-of-writes* 0)
"n/a (no writes)"
(/ *writes-total-delay*
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(set! *didsomething* #t)
(thread-join! th2))
(debug:print 0 "ERROR: Failed to setup for megatest")))
(exit)))
;; (use trace)
;; (trace http-transport:keep-running
;; tasks:get-best-server
;; http-transport:run
;; http-transport:launch
;; http-transport:try-start-server
;; http-transport:client-send-receive
;; http-transport:make-server-url
;; tasks:server-register
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(set! *didsomething* #t)
(thread-join! th2))
(debug:print 0 "ERROR: Failed to setup for megatest")))
(exit)))
;; (use trace)
;; (trace http-transport:keep-running
;; tasks:server-update-heartbeat
;; tasks:server-get-server-id)
;; tasks:get-best-server
;; http-transport:run
;; http-transport:launch
;; http-transport:try-start-server
;; http-transport:client-send-receive
;; http-transport:make-server-url
;; tasks:server-register
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