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(set! res adr)))
(vector->list (hostinfo-addresses (hostname->hostinfo hostname))))
(string-intersperse
(map number->string
(u8vector->list
(if res res (hostname->ip hostname)))) ".")))
(define (http-transport:run hostn)
(define (http-transport:run hostn run-id server-id)
(debug:print 2 "Attempting to start the server ...")
(if (not *toppath*)
(if (not (setup-for-run))
(begin
(debug:print 0 "ERROR: cannot find megatest.config, cannot start server, exiting")
(exit))))
(let* (;; (iface (if (string=? "-" hostn)
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(send-response body: "hey there!\n"
headers: '((content-type text/plain))))
((equal? (uri-path (request-uri (current-request)))
'(/ "hey"))
(send-response body: "hey there!\n"
headers: '((content-type text/plain))))
(else (continue))))))))
(http-transport:try-start-server ipaddrstr start-port)))
(http-transport:try-start-server ipaddrstr start-port server-id)))
;; This is recursively run by http-transport:run until sucessful
;;
(define (http-transport:try-start-server ipaddrstr portnum)
(define (http-transport:try-start-server ipaddrstr portnum server-id)
(handle-exceptions
exn
(begin
(print-error-message exn)
(if (< portnum 9000)
(begin
(debug:print 0 "WARNING: failed to start on portnum: " portnum ", trying next port")
(thread-sleep! 0.1)
;; (open-run-close tasks:remove-server-records tasks:open-db)
(open-run-close tasks:server-delete tasks:open-db ipaddrstr portnum)
(http-transport:try-start-server ipaddrstr (+ portnum 1)))
(set! *runremote* (list ipaddrstr portnum))
(set! *server-info* (list ipaddrstr portnum))
;; (open-run-close tasks:remove-server-records tasks:open-db)
(open-run-close tasks:server-register
(current-process-id)
ipaddrstr portnum 0 'startup 'http)
server-id
ipaddrstr portnum)
(debug:print 1 "INFO: Trying to start server on " ipaddrstr ":" portnum)
;; This starts the spiffy server
;; NEED WAY TO SET IP TO #f TO BIND ALL
(start-server bind-address: ipaddrstr port: portnum)
(open-run-close tasks:server-delete tasks:open-db ipaddrstr portnum)
(debug:print 1 "INFO: server has been stopped")))
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(debug:print-info 11 "match=" match)
(let ((final (cadr match)))
(debug:print-info 11 "final=" final)
final)))))))
;; Send "cmd" with json payload "params" to serverdat and receive result
;;
(define (http-transport:client-api-send-receive serverdat cmd params #!key (numretries 30))
(define (http-transport:client-api-send-receive run-id serverdat cmd params #!key (numretries 30))
(let* ((fullurl (if (list? serverdat)
(cadddr serverdat) ;; this is the uri for /api
(begin
(debug:print 0 "FATAL ERROR: http-transport:client-send-receive called with no server info")
(exit 1))))
(res #f))
(handle-exceptions
exn
(begin
;; TODO: Send this output to a log file so it isn't lost when running as daemon
(print "ERROR IN http-transport:client-send-receive " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! 2)
(http-transport:client-api-send-receive serverdat cmd params numretries: (- numretries 1))))
(http-transport:client-api-send-receive run-id serverdat cmd params numretries: (- numretries 1)))))
(begin
(debug:print-info 11 "fullurl=" fullurl "\n")
;; set up the http-client here
(max-retry-attempts 5)
;; consider all requests indempotent
(retry-request? (lambda (request)
#t)) ;; (thread-sleep! (/ (if (> numretries 100) 100 numretries) 10))
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(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
(thread-terminate! th2)
(debug:print-info 11 "got res=" res)
res)))))
(define (http-transport:client-connect iface port)
(define (http-transport:client-connect run-id iface port)
(let* ((login-res #f)
(uri-dat (make-request method: 'POST uri: (uri-reference (conc "http://" iface ":" port "/ctrl"))))
(uri-api-dat (make-request method: 'POST uri: (uri-reference (conc "http://" iface ":" port "/api"))))
(serverdat (list iface port uri-dat uri-api-dat)))
(set! *runremote* serverdat) ;; may or may not be good ...
(set! login-res (rmt:login))
(hash-table-set! *runremote* run-id serverdat) ;; may or may not be good ...
(set! login-res (rmt:login run-id))
(if (and (list? login-res)
(car login-res))
(begin
(debug:print-info 2 "Logged in and connected to " iface ":" port)
(set! *runremote* serverdat)
(hash-table-set! *runremote* run-id serverdat)
serverdat)
(begin
(debug:print-info 0 "ERROR: Failed to login or connect to " iface ":" port)
(exit 1)))))
;; (set! *runremote* #f)
;; (set! *transport-type* 'fs)
;; #f))))
(define (http-transport:keep-running)
(define (http-transport:keep-running server-id)
;; if none running or if > 20 seconds since
;; server last used then start shutdown
;; This thread waits for the server to come alive
(let* ((server-info (let loop ()
(let* ((server-info (let loop ((start-time (current-seconds))
(changed #t)
(last-sdat "not this"))
(let ((sdat #f))
(mutex-lock! *heartbeat-mutex*)
(set! sdat *runremote*)
(set! sdat *server-info*)
(mutex-unlock! *heartbeat-mutex*)
(if sdat
(if (and sdat
(not changed)
(> (- (current-seconds) start-time) 2))
sdat
(begin
(sleep 4)
(loop start-time
(equal? sdat last-sdat)
(loop))))))
sdat))))))
(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))
(debug:print-info 2 "server-timeout: " server-timeout ", server pid: " spid " on " iface ":" port)
(tasks:server-set-state! tdb server-id "running")
(let loop ((count 0))
;; Use this opportunity to sync the inmemdb to db
(let ((start-time (current-milliseconds))
(sync-time #f)
(rem-time #f))
(if *inmemdb* (db:sync-touched *inmemdb* force-sync: #t))
(set! sync-time (- (current-milliseconds) start-time))
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;; (thread-sleep! 4) ;; no need to do this very often
(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*)
(set! sdat *server-info*)
(mutex-unlock! *heartbeat-mutex*)
(if (or (not (equal? sdat (list iface port)))
(not spid))
(not server-id))
(begin
(debug:print-info 0 "interface changed, refreshing iface and port info")
(set! iface (car sdat))
(set! port (cadr sdat))
(set! port (cadr sdat))))
(set! spid (tasks:server-get-server-id tdb #f iface port #f))))
(tasks:server-update-heartbeat tdb spid)
(tasks:server-update-heartbeat tdb server-id)
;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access
;; Transfer *last-db-access* to last-access to use in checking that we are still alive
(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 (and *server-run*
(> (+ last-access server-timeout)
(current-seconds)))
(begin
(debug:print-info 0 "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)
(if *inmemdb* (db:sync-touched *inmemdb* force-sync: #t))
(open-run-close tasks:server-deregister-self tasks:open-db (get-host-name))
(thread-sleep! 1)
( tasks:server-set-state! tdb server-id "shutting-down")
(thread-sleep! 5)
(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*
*number-of-writes*))
" ms")
(debug:print-info 0 "Number non-cached queries " *number-non-write-queries*)
(debug:print-info 0 "Average non-cached time "
(if (eq? *number-non-write-queries* 0)
"n/a (no queries)"
(/ *total-non-write-delay*
*number-non-write-queries*))
" ms")
(debug:print-info 0 "Server shutdown complete. Exiting")
(tasks:server-delete-record! tdb server-id)
(exit))))))
;; all routes though here end in exit ...
(define (http-transport:launch)
(define (http-transport:launch run-id)
(set! *run-id* run-id)
(if (not *toppath*)
(if (not (setup-for-run))
(begin
(debug:print 0 "ERROR: cannot find megatest.config, exiting")
(exit))))
(debug:print-info 2 "Starting the standalone server")
(if (args:get-arg "-daemonize")
(daemon:ize))
(let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db)))
(let ((server-id (open-run-close tasks:server-lock-slot tasks:open-db run-id)))
(debug:print 11 "http-transport:launch hostinfo=" hostinfo)
;; #(1 "143.182.207.24" 5736 -1 "http" 22771 "hostname")
(if hostinfo
(debug:print-info 2 "NOT starting new server, one is already running on " (vector-ref hostinfo 1) ":" (vector-ref hostinfo 2))
"-"))) "Server run"))
(th3 (make-thread http-transport:keep-running "Keep running")))
server-id)) "Server run"))
(th3 (make-thread (lambda ()
(http-transport:keep-running server-id))
"Keep running")))
;; Database connection
(set! *inmemdb* (db:setup))
(set! *inmemdb* (db:setup run-id))
(thread-start! th2)
(thread-start! th3)
(set! *didsomething* #t)
(thread-join! th2))
(debug:print 0 "ERROR: Failed to setup for megatest")))
;; (sdb:qry 'finalize)
(exit)))
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