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(define (server:make-server-url hostport)
(if (not hostport)
#f
(conc "http://" (car hostport) ":" (cadr hostport))))
(define *server-loop-heart-beat* (current-seconds))
(define *heartbeat-mutex* (make-mutex))
(define (server:launch run-id transport-type)
(BB> "server:launch fired for run-id="run-id" transport-type="transport-type)
(case transport-type
((http)(http-transport:launch run-id))
;;((nmsg)(nmsg-transport:launch run-id))
((rpc) (rpc-transport:launch run-id))
(else (debug:print-error 0 *default-log-port* "unknown server type " transport-type))))
(define (server:launch run-id transport-type-raw)
(let ((transport-type
(cond
((string? transport-type-raw) (string->symbol transport-type-raw))
(else transport-type-raw))))
;;(BB> "server:launch fired for run-id="run-id" transport-type="transport-type)
(case transport-type
((http)(http-transport:launch run-id))
;;((nmsg)(nmsg-transport:launch run-id))
((rpc) (rpc-transport:launch run-id))
(else (debug:print-error 0 *default-log-port* "unknown server type " transport-type)))))
;; (else (debug:print-error 0 *default-log-port* "No known transport set, transport=" transport ", using rpc")
;; (rpc-transport:launch run-id)))))
"rpc"))))
*DEFAULT-TRANSPORT*))))
(set! *transport-type* ttype)
ttype)))
;; Generate a unique signature for this server
(define (server:mk-signature)
(message-digest-string (md5-primitive)
(with-output-to-string
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result)))
;; Given a run id start a server process ### NOTE ### > file 2>&1
;; if the run-id is zero and the target-host is set
;; try running on that host
;; incidental: rotate logs in logs/ dir.
;;
(define (server:run run-id)
(define (server:run areapath) ;; areapath is ignored for now.
(let* ((curr-host (get-host-name))
(curr-ip (server:get-best-guess-address curr-host))
(curr-pid (current-process-id))
(target-host (configf:lookup *configdat* "server" "homehost" ))
(homehost (common:get-homehost)) ;; configf:lookup *configdat* "server" "homehost" ))
(target-host (car homehost))
(testsuite (common:get-testsuite-name))
(logfile (conc *toppath* "/logs/" run-id ".log"))
(logfile (conc *toppath* "/logs/server.log"))
(cmdln (conc (common:get-megatest-exe)
" -server " (or target-host "-") " -run-id " run-id (if (equal? (configf:lookup *configdat* "server" "daemonize") "yes")
(conc " -daemonize -log " logfile)
"")
" -m testsuite:" testsuite))) ;; (conc " >> " logfile " 2>&1 &")))))
" -server " (or target-host "-") " -run-id " 0
(if (equal? (configf:lookup *configdat* "server" "daemonize") "yes")
(conc " -daemonize -log " logfile)
"")
" -transport " (server:get-transport)
" -m testsuite:" testsuite)) ;; (conc " >> " logfile " 2>&1 &")))))
(debug:print 0 *default-log-port* "INFO: Starting server (" cmdln ") as none running ...")
(if (not (directory-exists? "logs"))(create-directory "logs"))
;; Rotate logs, logic:
;; if > 500k and older than 1 week:
;; remove previous compressed log and compress this log
;;
(directory-fold
(lambda (file rem)
(if (and (string-match "^.*.log" file)
(> (file-size (conc "logs/" file)) 200000))
(let ((gzfile (conc "logs/" file ".gz")))
(if (file-exists? gzfile)
(begin
(debug:print-info 0 *default-log-port* "removing " gzfile)
(delete-file gzfile)))
(debug:print-info 0 *default-log-port* "compressing " file)
(system (conc "gzip logs/" file)))))
'()
"logs")
;; (system cmdln)
(thread-join! log-rotate)
(pop-directory)))
(define (server:get-client-signature) ;; BB> why is this proc named "get-"? it returns nothing -- set! has not return value.
(if *my-client-signature* *my-client-signature*
(let ((sig (server:mk-signature)))
(set! *my-client-signature* sig)
*my-client-signature*)))
;; kind start up of servers, wait 40 seconds before allowing another server for a given
;; run-id to be launched
(define (server:kind-run run-id)
(let ((last-run-time (hash-table-ref/default *server-kind-run* run-id #f)))
(define (server:kind-run areapath)
(let ((last-run-time (hash-table-ref/default *server-kind-run* areapath #f)))
(if (or (not last-run-time)
(> (- (current-seconds) last-run-time) 30))
(begin
(server:run run-id)
(hash-table-set! *server-kind-run* run-id (current-seconds))))))
(server:run areapath)
(hash-table-set! *server-kind-run* areapath (current-seconds))))))
;; The generic run a server command. Dispatches the call to server 0 if run-id != 0
;;
(define (server:try-running run-id)
(if (eq? run-id 0)
(server:run run-id)
(rmt:start-server run-id)))
;; (define (server:try-running run-id)
;; (if (eq? run-id 0)
;; (server:run run-id)
;; (rmt:start-server run-id)))
(define server:try-running server:run) ;; there is no more per-run servers ;; REMOVE ME. BUG.
(define (server:start-attempted? areapath)
(let ((flagfile (conc areapath "/.starting-server")))
(handle-exceptions
exn
#f ;; if things go wrong pretend we can't see the file
(and (file-exists? flagfile)
(< (- (current-seconds)
(file-modification-time flagfile))
15))))) ;; exists and less than 15 seconds old
(define (server:read-dotserver areapath)
(let ((dotfile (conc areapath "/.server")))
(handle-exceptions
exn
#f ;; if things go wrong pretend we can't see the file
(if (and (file-exists? dotfile)
(file-read-access? dotfile))
(with-input-from-file
dotfile
(lambda ()
(read-line)))
#f))))
(define (server:dotserver-starting)
(with-output-to-file
(conc *toppath* "/.starting-server")
(lambda ()
(print (current-process-id) " on " (get-host-name)))))
(define (server:dotserver-starting-remove)
(delete-file* (conc *toppath* "/.starting-server")))
;; write a .server file in *toppath* with hostport
;; return #t on success, #f otherwise
;;
(define (server:write-dotserver areapath hostport)
(let ((lock-file (conc areapath "/.server.lock"))
(server-file (conc areapath "/.server")))
(if (common:simple-file-lock lock-file)
(let ((res (handle-exceptions
exn
#f ;; failed for some reason, for the moment simply return #f
(with-output-to-file server-file
(lambda ()
(print hostport)))
#t)))
(debug:print-info 0 *default-log-port* "server file " server-file " for " hostport " created")
(common:simple-file-release-lock lock-file)
res)
#f)))
(define (server:check-if-running run-id)
(let ((tdbdat (tasks:open-db)))
(let loop ((server (tasks:get-server (db:delay-if-busy tdbdat) run-id))
(trycount 0))
(if server
;; note: client:start will set *runremote*. this needs to be changed
(define (server:remove-dotserver-file areapath hostport #!key (force #f))
(let ((dotserver (server:read-dotserver areapath))
(server-file (conc areapath "/.server"))
(lock-file (conc areapath "/.server.lock")))
(if (or force (and dotserver (string-match (conc ".*:" hostport "$") dotserver))) ;; port matches, good enough info to decide to remove the file
(if (common:simple-file-lock lock-file)
(begin
(handle-exceptions
exn
#f
(delete-file* server-file))
(debug:print-info 0 *default-log-port* "server file " server-file " for " hostport " removed")
(common:simple-file-release-lock lock-file))))))
;; also, client:start will login to the server, also need to change that.
;;
;; client:start returns #t if login was successful.
;;
(let ((res (case *transport-type*
((http)(server:ping-server run-id
(tasks:hostinfo-get-interface server)
(tasks:hostinfo-get-port server)))
;; ((nmsg)(nmsg-transport:ping (tasks:hostinfo-get-interface server)
;; (tasks:hostinfo-get-port server)
;; timeout: 2))
)))
;; if the server didn't respond we must remove the record
#t
(begin
(debug:print-info 0 *default-log-port* "server at " server " not responding, removing record")
(tasks:server-force-clean-running-records-for-run-id (db:delay-if-busy tdbdat) run-id
" server:check-if-running")
res)))
#f))))
(define (server:ping run-id host:port)
(let ((tdbdat (tasks:open-db)))
(let* ((host-port (let ((slst (string-split host:port ":")))
(if (eq? (length slst) 2)
(list (car slst)(string->number (cadr slst)))
#f)))
(toppath (launch:setup))
(define (server:ping host-port-in #!key (do-exit #f))
(let ((host:port (if (not host-port-in) ;; use read-dotserver to find
(server:read-dotserver *toppath*)
(if (number? host-port-in) ;; we were handed a server-id
(let ((srec (tasks:get-server-by-id (db:delay-if-busy (tasks:open-db)) host-port-in)))
;; (print "srec: " srec " host-port-in: " host-port-in)
(if srec
(conc (vector-ref srec 3) ":" (vector-ref srec 4))
(conc "no such server-id " host-port-in)))
host-port-in))))
(let* ((host-port (if host:port
(let ((slst (string-split host:port ":")))
(if (eq? (length slst) 2)
(list (car slst)(string->number (cadr slst)))
#f))
#f))
(toppath (launch:setup)))
(server-db-dat (if (not host-port)(tasks:get-server (db:delay-if-busy tdbdat) run-id) #f)))
(if (not run-id)
(begin
(debug:print-error 0 *default-log-port* "must specify run-id when doing ping, -run-id n")
(print "ERROR: No run-id")
(exit 1))
(if (and (not host-port)
(not server-db-dat))
(begin
(print "ERROR: bad host:port")
(exit 1))
(let* ((iface (if host-port (car host-port) (tasks:hostinfo-get-interface server-db-dat)))
(port (if host-port (cadr host-port)(tasks:hostinfo-get-port server-db-dat)))
(server-dat (http-transport:client-connect iface port))
(login-res (rmt:login-no-auto-client-setup server-dat run-id)))
(if (and (list? login-res)
(car login-res))
(begin
(print "LOGIN_OK")
(exit 0))
(begin
(print "LOGIN_FAILED")
(exit 1)))))))))
(define (server:ping-server run-id iface port)
(define (server:ping-server ifaceport)
(with-input-from-pipe
(conc (common:get-megatest-exe) " -run-id " run-id " -ping " (conc iface ":" port))
(conc (common:get-megatest-exe) " -ping " ifaceport)
(lambda ()
(let loop ((inl (read-line))
(res "NOREPLY"))
(if (eof-object? inl)
(case (string->symbol res)
((NOREPLY) #f)
((LOGIN_OK) #t)
(else #f))
(loop (read-line) inl))))))
(define (server:login toppath)
(lambda (toppath)
(set! *last-db-access* (current-seconds))
(set! *db-last-access* (current-seconds)) ;; might not be needed.
(if (equal? *toppath* toppath)
(begin
;; (debug:print-info 2 *default-log-port* "login successful")
#t)
(begin
;; (debug:print-info 2 *default-log-port* "login failed")
#f))))
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