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       (set! res num-in-queue))
     mdb
     "SELECT count(id) FROM servers WHERE run_id=? AND state = 'available';"
     run-id)
    res))

(define (tasks:server-clean-out-old-records-for-run-id mdb run-id)
  (sqlite3:execute mdb "DELETE FROM servers WHERE state in ('available','shutting-down') AND (strftime('%s','now') - start_time) > 30 AND run_id=?;" run-id))
  (sqlite3:execute mdb "UPDATE servers SET state='defunct' WHERE state in ('available','shutting-down') AND (strftime('%s','now') - start_time) > 300 AND run_id=?;" run-id))

(define (tasks:server-force-clean-running-records-for-run-id mdb run-id)
  (sqlite3:execute mdb "DELETE FROM servers WHERE state = 'running' AND run_id=?;" run-id))
  (sqlite3:execute mdb "UPDATE servers SET state='defunct' WHERE state = 'running' AND run_id=?;" run-id))

(define (tasks:server-force-clean-run-record mdb run-id iface port)
  (sqlite3:execute mdb "DELETE FROM servers WHERE state = 'running' AND run_id=? AND interface=? AND port=?;"
  (sqlite3:execute mdb "UPDATE servers SET state='defunct' WHERE state = 'running' AND run_id=? AND interface=? AND port=?;"
		   run-id iface port))

(define (tasks:server-delete-records-for-this-pid mdb)
  (sqlite3:execute mdb "UPDATE servers SET state='defunct' WHERE hostname=? AND pid=?;" (get-host-name) (current-process-id)))

(define (tasks:server-delete-record mdb server-id)
  (sqlite3:execute mdb "UPDATE servers SET state='defunct' WHERE id=?;" server-id)
  ;; use this opportuntity to clean out records over one month old
  (sqlite3:execute mdb "DELETE FROM servers WHERE state not in ('running','shutting-down') AND (strftime('%s','now') - start_time) > 2628000;"))

(define (tasks:server-set-state! mdb server-id state)
  (sqlite3:execute mdb "UPDATE servers SET state=? WHERE id=?;" state server-id))

(define (tasks:server-delete-record! mdb server-id)
  (sqlite3:execute mdb "DELETE FROM servers WHERE id=?;" server-id))

(define (tasks:server-delete-records-for-this-pid mdb)
  (sqlite3:execute mdb "DELETE FROM servers WHERE hostname=? AND pid=?;" (get-host-name) (current-process-id)))

(define (tasks:server-set-interface-port mdb server-id interface port)
  (sqlite3:execute mdb "UPDATE servers SET interface=?,port=? WHERE id=?;" interface port server-id))

;; Get random port not used in long time
;;
(define (tasks:server-get-next-port mdb)
  (let* ((lownum        30000)
  (let ((res         #f)
	(port-param  (if (and (args:get-arg "-port")
			      (string->number (args:get-arg "-port")))
			 (string->number (args:get-arg "-port"))
			 #f))
	(config-port (if (and (config-lookup  *configdat* "server" "port")
			      (string->number (config-lookup  *configdat* "server" "port")))
			 (string->number (config-lookup  *configdat* "server" "port"))
			 #f)))
	(highnum        64000)
	(used-ports     '())
	(get-rand-port  (lambda ()
			  (+ lownum (random (- highnum lownum)))))
	(port-param     (if (and (args:get-arg "-port")
				 (string->number (args:get-arg "-port")))
			    (string->number (args:get-arg "-port"))
			    #f))
	;; (config-port    (if (and (config-lookup  *configdat* "server" "port")
	;; 			 (string->number (config-lookup  *configdat* "server" "port")))
	;; 		    (string->number (config-lookup  *configdat* "server" "port"))
	;; 		    #f))
	)
    (sqlite3:for-each-row
     (lambda (port)
       (set! res (+ port 1))) ;; set to next
       (set! used-ports (cons port used-ports)))
     mdb
     "SELECT max(port) FROM servers;")
     "SELECT port FROM servers;")
    (cond
     ((and port-param res)   (if (> res port-param) res port-param))
     (port-param             port-param)
     ((and config-port res)  (if (> res config-port) res config-port))
     (config-port            config-port)
     ((and res (> res 8080)) res)
     (else                   (+ 5000 (random 1001))))))
     ;; ((and config-port res)  (if (> res config-port) res config-port))
     ;; (config-port            config-port)
     (else
      (let loop ((port     (get-rand-port))
		 (remtries 100))
	(if (member port used-ports)
	    (if (> remtries 0)
		(loop (get-rand-port)(- remtries 1))
		(get-rand-port))
	    port))))))

(define (tasks:server-am-i-the-server? mdb run-id)
  (let* ((all    (tasks:server-get-servers-vying-for-run-id mdb run-id))
	 (first  (if (null? all)
		     (begin (debug:print 0 "ERROR: no servers listed, should be at least one by now.") 
			    (sqlite3:finalize! mdb)
			    (exit 1))