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directory-utils
;; http-client
;; intarweb
matchable
md5
message-digest
(prefix base64 base64:)
(prefix sqlite3 sqlite3:)
regex
s11n
;; spiffy
;; spiffy-directory-listing
;; spiffy-request-vars
srfi-1
srfi-13
srfi-18
srfi-69
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system-information
tcp6
typed-records
uri-common
z3
apimod
commonmod
configfmod
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directory-utils
;; http-client
;; intarweb
matchable
md5
message-digest
nanomsg
(prefix base64 base64:)
(prefix sqlite3 sqlite3:)
regex
s11n
;; spiffy
;; spiffy-directory-listing
;; spiffy-request-vars
srfi-1
srfi-13
srfi-18
srfi-69
stack
system-information
;; tcp6
typed-records
uri-common
z3
apimod
commonmod
configfmod
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;; info about me as a server
;;
(defstruct servdat
(host #f)
(port #f)
(uuid #f)
(dbfile #f)
(api-url #f)
(api-uri #f)
(api-req #f)
(status 'starting)
(trynum 0) ;; count the number of ports we've tried
)
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;; info about me as a server
;;
(defstruct servdat
(host #f)
(port #f)
(uuid #f)
(rep #f)
(dbfile #f)
(api-url #f)
(api-uri #f)
(api-req #f)
(status 'starting)
(trynum 0) ;; count the number of ports we've tried
)
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#t)
(start-main-srv)))
(start-main-srv))))
;; NB// remote is a rmt:remote struct
;;
(define (rmt:general-open-connection remote apath dbname #!key (num-tries 5))
(let ((mdbname (db:run-id->dbname #f)))
(cond
((not (rmt:get-conn remote apath mdbname)) ;; no channel open to main?
(rmt:open-main-connection remote apath)
(thread-sleep! 2)
res
(begin
(debug:print-info 0 *default-log-port* "Unexpected result: " res)
res)))))))))
;;======================================================================
;; Defaults to current area
;;
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)(area-dat #f))
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#t)
(start-main-srv)))
(start-main-srv))))
;; NB// remote is a rmt:remote struct
;;
(define (rmt:general-open-connection remote apath dbname #!key (num-tries 5))
(let* ((mdbname (db:run-id->dbname #f))
(mconn (rmt:get-conn remote apath mdbname)))
(cond
((or (not mconn) ;; no channel open to main?
(< (rmt:conn-expires mconn)(+ (current-seconds) 2))) ;; restablish connection if less than 2 seconds on the lease
(rmt:open-main-connection remote apath)
(rmt:general-open-connection remote apath mdbname))
((not (rmt:get-conn remote apath dbname)) ;; no channel open to dbname?
(let* ((res (rmt:send-receive-real remote apath mdbname 'get-server `(,apath ,dbname))))
(case res
((server-started)
(if (> num-tries 0)
(begin
(thread-sleep! 2)
(rmt:general-open-connection remote apath dbname num-tries: (- num-tries 1)))
(begin
(debug:print-error 0 *default-log-port* "Failed to start servers needed or open channel to "apath", "dbname)
(exit 1))))
(else
(if (list? res) ;; server has been registered and the info was returned. pass it on.
(begin ;; ("192.168.0.9" 53817
;; "5e34239f48e8973b3813221e54701a01" "24310"
;; "192.168.0.9"
;; "/home/matt/data/megatest/tests/simplerun"
;; ".db/1.db")
(match
res
((host port servkey pid ipaddr apath dbname)
(debug:print-info 0 *default-log-port* "got "res)
(hash-table-set! (rmt:remote-conns remote)
dbname
(make-rmt:conn
apath: apath
dbname: dbname
hostport: (conc host":"port)
ipaddr: ipaddr
port: port
srvkey: servkey
lastmsg: (current-seconds)
expires: (+ (current-seconds) 60))))
(else
(debug:print-info 0 *default-log-port* "return data from starting server did not match host port servkey pid ipaddr apath dbname " res)))
res)
(begin
(debug:print-info 0 *default-log-port* "Unexpected result: " res)
res))))))
)))
;;======================================================================
;; Defaults to current area
;;
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)(area-dat #f))
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;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future
;;
(define (rmt:send-receive-real remote apath dbname cmd params)
(let* ((conn (rmt:get-conn remote apath dbname)))
(assert conn "FATAL: rmt:send-receive-real called without the needed channels opened")
(pp (rmt:conn->alist conn))
;; (rmt:send-receive-setup conn)
(let-values (((i o) (tcp-connect (rmt:conn-ipaddr conn)
(rmt:conn-port conn))))
(let* ((key #f)
(payload `((cmd . ,cmd)
(key . ,(rmt:conn-srvkey conn))
(params . ,params)))
(res (begin
(write payload o) ;; (rmt:conn-outport conn))
(with-input-from-port
i ;; (rmt:conn-inport conn)
read))))
(close-input-port i)
(close-output-port o)
res))))
;; (if (string? res)
;; (string->sexpr res)
;; res))))
;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future.
;;
;; Purpose - call the main.db server and request a server be started
;; for the given area path and dbname
;;
;; (define (rmt:send-receive-server-start remote apath dbname)
;; (let* ((conn (rmt:get-conn remote apath dbname)))
;; (assert conn "FATAL: Unable to connect to db "apath"/"dbname)
;; #;(let* ((res (with-input-from-request
;; (rmt:conn->uri conn "api")
;; `((params . (,apath ,dbname)))
;; read-string)))
;; (string->sexpr res))))
(define (rmt:print-db-stats)
(let ((fmtstr "~40a~7-d~9-d~20,2-f")) ;; "~20,2-f"
(debug:print 18 *default-log-port* "DB Stats\n========")
(debug:print 18 *default-log-port* (format #f "~40a~8a~10a~10a" "Cmd" "Count" "TotTime" "Avg"))
(for-each (lambda (cmd)
(let ((cmd-dat (hash-table-ref *db-stats* cmd)))
(debug:print 18 *default-log-port* (format #f fmtstr cmd (vector-ref cmd-dat 0) (vector-ref cmd-dat 1) (/ (vector-ref cmd-dat 1)(vector-ref cmd-dat 0))))))
(sort (hash-table-keys *db-stats*)
(lambda (a b)
(> (vector-ref (hash-table-ref *db-stats* a) 0)
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;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future
;;
(define (rmt:send-receive-real remote apath dbname cmd params)
(let* ((conn (rmt:get-conn remote apath dbname)))
(assert conn "FATAL: rmt:send-receive-real called without the needed channels opened")
(let* ((key #f)
(host (rmt:conn-ipaddr conn))
(port (rmt:conn-port conn))
(payload `((cmd . ,cmd)
(key . ,(rmt:conn-srvkey conn))
(params . ,params)))
(res (open-send-receive-nn (conc host":"port)
(sexpr->string payload))))
(string->sexpr res))))
;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
;; sometime in the future.
;;
;; Purpose - call the main.db server and request a server be started
;; for the given area path and dbname
;;
;; (define (rmt:send-receive-server-start remote apath dbname)
;; (let* ((conn (rmt:get-conn remote apath dbname)))
;; (assert conn "FATAL: Unable to connect to db "apath"/"dbname)
;; #;(let* ((res (with-input-from-request
;; (rmt:conn->uri conn "api")
;; `((params . (,apath ,dbname)))
;; read-string)))
;; (string->sexpr res))))
(define (rmt:print-db-stats)
(let ((fmtstr "~40a~7-d~9-d~20,2-f")) ;; "~20,2-f"
(debug:print 18 *default-log-port* "DB Stats, "(seconds->year-week/day-time (current-seconds))"\n=====================")
(debug:print 18 *default-log-port* (format #f "~40a~8a~10a~10a" "Cmd" "Count" "TotTime" "Avg"))
(for-each (lambda (cmd)
(let ((cmd-dat (hash-table-ref *db-stats* cmd)))
(debug:print 18 *default-log-port* (format #f fmtstr cmd (vector-ref cmd-dat 0) (vector-ref cmd-dat 1) (/ (vector-ref cmd-dat 1)(vector-ref cmd-dat 0))))))
(sort (hash-table-keys *db-stats*)
(lambda (a b)
(> (vector-ref (hash-table-ref *db-stats* a) 0)
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(define (common:version-changed?)
(not (equal? (common:get-last-run-version)
(common:version-signature))))
(define (common:api-changed?)
(not (equal? (substring (->string megatest-version) 0 4)
(substring (conc (common:get-last-run-version)) 0 4))))
(define (std-exit-procedure)
;;(common:telemetry-log-close)
(on-exit (lambda () 0))
;;(debug:print-info 13 *default-log-port* "std-exit-procedure called; *time-to-exit*="*time-to-exit*)
(let ((no-hurry (if (bdat-time-to-exit *bdat*) ;; hurry up
#f
(begin
(bdat-time-to-exit-set! *bdat* #t)
#t))))
(debug:print-info 4 *default-log-port* "starting exit process, finalizing databases.")
(if (and no-hurry (debug:debug-mode 18))
(rmt:print-db-stats))
(let ((th1 (make-thread (lambda () ;; thread for cleaning up, give it five seconds
(if *server-info*
(let ((pkt-file (conc (get-pkts-dir *toppath*)
"/" (servdat-uuid *server-info*)
".pkt"))
(dbfile (servdat-dbfile *server-info*)))
(if dbfile
(begin
;; do a final sync here
(if (string-match ".*/main.db$" dbfile)
(begin
(debug:print-info 0 *default-log-port* "removing pkt "pkt-file)
(delete-file* pkt-file)
(debug:print-info 0 *default-log-port* "Releasing lock for "dbfile)
(db:with-lock-db (servdat-dbfile *server-info*)
(lambda (dbh dbfile)
(db:release-lock dbh dbfile))))
(let* ((sdat *server-info*)) ;; we have a run-id server
(rmt:send-receive-real *rmt:remote* *toppath*
(db:run-id->dbname #f)
'deregister-server
`(,(servdat-uuid sdat)
,(current-process-id)
,(servdat-host sdat) ;; iface
,(servdat-port sdat)))))))))
(if *dbstruct-db* (db:close-all *dbstruct-db*)) ;; one second allocated
(if (bdat-task-db *bdat*) ;; TODO: Check that this is correct for task db
(let ((db (cdr (bdat-task-db *bdat*))))
(if (sqlite3:database? db)
(begin
(sqlite3:interrupt! db)
(sqlite3:finalize! db #t)
(bdat-task-db-set! *bdat* #f)))))
#;(http-client#close-idle-connections!)
(if (not (eq? *default-log-port* (current-error-port)))
(close-output-port *default-log-port*))
(set! *default-log-port* (current-error-port))) "Cleanup db exit thread"))
(debug:print 4 *default-log-port* "Attempting clean exit. Please be patient and wait a few seconds...")
(if no-hurry
(begin
(thread-sleep! 5)) ;; give the clean up few seconds to do it's stuff
(begin
(thread-sleep! 2)))
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(define (common:version-changed?)
(not (equal? (common:get-last-run-version)
(common:version-signature))))
(define (common:api-changed?)
(not (equal? (substring (->string megatest-version) 0 4)
(substring (conc (common:get-last-run-version)) 0 4))))
(define (rmt:server-shutdown)
(let ((dbfile (servdat-dbfile *server-info*)))
(debug:print-info 0 *default-log-port* "dbfile is "dbfile)
(if dbfile
(let* ((am-server (args:get-arg "-server"))
(dbfile (args:get-arg "-db"))
(apath *toppath*))
;; do a final sync here
(debug:print-info 0 *default-log-port* "Doing final sync for "apath" "dbfile" at "(current-seconds))
(db:sync-inmem->disk *dbstruct-db* apath dbfile force-sync: #t)
(if am-server
(if (string-match ".*/main.db$" dbfile)
(let ((pkt-file (conc (get-pkts-dir *toppath*)
"/" (servdat-uuid *server-info*)
".pkt")))
(debug:print-info 0 *default-log-port* "removing pkt "pkt-file)
(delete-file* pkt-file)
(debug:print-info 0 *default-log-port* "Releasing lock for "dbfile)
(db:with-lock-db (servdat-dbfile *server-info*)
(lambda (dbh dbfile)
(db:release-lock dbh dbfile))))
(let* ((sdat *server-info*) ;; we have a run-id server
(host (servdat-host sdat))
(port (servdat-port sdat))
(uuid (servdat-uuid sdat)))
(if (not (string-match ".db/main.db" (args:get-arg "-db")))
(let* ((res (rmt:deregister-server *rmt:remote* ;; TODO/BUG: why is this requiring *rmt:remote*?
*toppath*
(servdat-host *server-info*) ;; iface
(servdat-port *server-info*)
(servdat-uuid *server-info*)
(current-process-id)
)))
(debug:print-info 0 *default-log-port* "deregistered-server, res="res)))
(debug:print-info 0 *default-log-port* "deregistering server "host":"port" with uuid "uuid)
)))))))
(define (std-exit-procedure)
;;(common:telemetry-log-close)
(on-exit (lambda () 0))
;;(debug:print-info 13 *default-log-port* "std-exit-procedure called; *time-to-exit*="*time-to-exit*)
(let ((no-hurry (if (bdat-time-to-exit *bdat*) ;; hurry up
#f
(begin
(bdat-time-to-exit-set! *bdat* #t)
#t))))
(debug:print-info 4 *default-log-port* "starting exit process, finalizing databases.")
(if (and no-hurry (debug:debug-mode 18))
(rmt:print-db-stats))
(let ((th1 (make-thread
(lambda () ;; thread for cleaning up, give it five seconds
(let* ((start-time (current-seconds)))
(if (and *server-info*
*unclean-shutdown*)
(rmt:server-shutdown))
(debug:print-info 0 *default-log-port* "Shutdown activities completed in "(- (current-seconds) start-time)" seconds"))
;; (if *dbstruct-db* (db:close-all *dbstruct-db*)) ;; one second allocated
#;(if (bdat-task-db *bdat*) ;; TODO: Check that this is correct for task db
(let ((db (cdr (bdat-task-db *bdat*))))
(if (sqlite3:database? db)
(begin
(debug:print-info 0 *default-log-port* "Closing down task db "db)
(sqlite3:interrupt! db)
(sqlite3:finalize! db #t)
(bdat-task-db-set! *bdat* #f)))))
#;(http-client#close-idle-connections!)
(if (not (eq? *default-log-port* (current-error-port)))
(close-output-port *default-log-port*))
(set! *default-log-port* (current-error-port))) "Cleanup db exit thread"))
(th2 (make-thread (lambda ()
(debug:print 4 *default-log-port* "Attempting clean exit. Mode="(if no-hurry "no-hurry" "normal")
" Please be patient and wait a few seconds...")
(if no-hurry
(begin
(thread-sleep! 5)) ;; give the clean up few seconds to do it's stuff
(begin
(thread-sleep! 2)))
(debug:print 4 *default-log-port* " ... done")
)
"clean exit")))
(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
)
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#f
(conc "http://" (car hostport) ":" (cadr hostport))))
;;======================================================================
;; S E R V E R
;; ======================================================================
;; NOTE: http-transport:launch is the entry point
;; -> http-transport:run
;; -> http-transport:try-start-server -> http-transport:try-start-server (until success)
#;(define (rmt:launch-server hostn port)
(if *server-info*
(begin
(servdat-host-set! *server-info* hostn)
(servdat-port-set! *server-info* port)
(servdat-status-set! *server-info* 'trying-port)
(servdat-trynum-set! *server-info* (+ (servdat-trynum *server-info*) 1)))
(set! *server-info* (make-servdat host: ipaddrstr port: portnum)))
(let* ((l (tcp-listen port))
(dbstruct #f))
(let-values (((i o) (tcp-accept l)))
;; (write-line "Hello!" o)
(let loop ((indat (read i)))
(let* ((res (api:process-request dbstruct indat)))
(case res
((quit)
(close-input-port i)
(close-output-port o))
(else
(write res o))))))))
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#f
(conc "http://" (car hostport) ":" (cadr hostport))))
;;======================================================================
;; S E R V E R
;; ======================================================================
(define (http-get-function fnkey)
(hash-table-ref/default *http-functions* fnkey (lambda () "nothing here yet")))
(define (rmt:run hostn)
;; ;; Configurations for server
;; (tcp-buffer-size 2048)
;; (max-connections 2048)
(debug:print 2 *default-log-port* "Attempting to start the server ...")
(let* ((db #f) ;; (open-db)) ;; we don't want the server to be opening and closing the db unnecesarily
(hostname (get-host-name))
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(if *server-info*
(begin
(servdat-host-set! *server-info* ipaddrstr)
(servdat-port-set! *server-info* port)
(servdat-status-set! *server-info* 'trying-port)
(servdat-trynum-set! *server-info* (+ (servdat-trynum *server-info*) 1)))
(set! *server-info* (make-servdat host: ipaddrstr port: port)))
(let* ((l (rmt:try-start-server ipaddrstr port)))
(let oloop ()
(let-values (((i o) (tcp-accept l)))
;; (write-line "Hello!" o)
(let loop ((indat (read i)))
(if (eof-object? indat)
(begin
(close-input-port i)
(close-output-port o)
(oloop))
(let* ((res (api:process-request *dbstruct-db* indat)))
(set! *db-last-access* (current-seconds))
(write res o)
(loop (read i))))))))
(let* ((portnum (servdat-port *server-info*)))
(portlogger:open-run-close portlogger:set-port portnum "released")
(debug:print 1 *default-log-port* "INFO: server has been stopped"))))
(define (rmt:try-start-server ipaddrstr portnum)
(if *server-info*
(begin
(servdat-host-set! *server-info* ipaddrstr)
(servdat-port-set! *server-info* portnum)
(servdat-status-set! *server-info* 'trying-port)
(servdat-trynum-set! *server-info* (+ (servdat-trynum *server-info*) 1)))
(set! *server-info* (make-servdat host: ipaddrstr port: portnum)))
(debug:print-info 0 *default-log-port* "rmt:try-start-server time="
(seconds->time-string (current-seconds))
" ipaddrsstr=" ipaddrstr
" portnum=" portnum)
(handle-exceptions
exn
(begin
(print-error-message exn)
(if (< portnum 64000)
(begin
(debug:print 0 *default-log-port* "WARNING: attempt to start server failed. Trying again ...")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(portlogger:open-run-close portlogger:set-failed portnum)
(debug:print 0 *default-log-port* "WARNING: failed to start on portnum: " portnum ", trying next port")
;; (thread-sleep! 0.1)
(rmt:try-start-server ipaddrstr
(portlogger:open-run-close portlogger:find-port)))
(begin
(print "ERROR: Tried and tried but could not start the server"))))
;; any error in following steps will result in a retry
(if *server-info*
(servdat-status-set! *server-info* 'starting)
(set! *server-info* (make-servdat host: ipaddrstr port: portnum)))
(debug:print 0 *default-log-port* "INFO: Trying to start server on " ipaddrstr ":" portnum)
(tcp-listen portnum)))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;;======================================================================
;; C L I E N T S
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(if *server-info*
(begin
(servdat-host-set! *server-info* ipaddrstr)
(servdat-port-set! *server-info* port)
(servdat-status-set! *server-info* 'trying-port)
(servdat-trynum-set! *server-info* (+ (servdat-trynum *server-info*) 1)))
(set! *server-info* (make-servdat host: ipaddrstr port: port)))
(let* ((rep (rmt:try-start-server ipaddrstr port)))
(let loop ((instr (nn-recv rep)))
(let* ((data (string->sexpr instr))
(res (case data
((quit) 'quit)
(else (api:process-request *dbstruct-db* data))))
(resdat (sexpr->string res)))
(if (not (eq? res 'quit))
(begin
(set! *db-last-access* (current-seconds))
(nn-send rep resdat)
(loop (nn-recv rep)))))))
;; server exit stuff here
(let* ((portnum (servdat-port *server-info*)))
(portlogger:open-run-close portlogger:set-port portnum "released")
(debug:print 1 *default-log-port* "INFO: server has been stopped"))))
(define (rmt:try-start-server ipaddrstr portnum)
(if *server-info* ;; update the server info as we might be trying next port
(begin
(servdat-host-set! *server-info* ipaddrstr)
(servdat-port-set! *server-info* portnum)
(servdat-status-set! *server-info* 'trying-port)
(servdat-trynum-set! *server-info*
(+ (servdat-trynum *server-info*) 1)))
(set! *server-info* (make-servdat host: ipaddrstr port: portnum)))
(debug:print-info 0 *default-log-port* "rmt:try-start-server time="
(seconds->time-string (current-seconds))
" ipaddrsstr=" ipaddrstr
" portnum=" portnum)
(if (is-port-in-use portnum)
(begin
(portlogger:open-run-close portlogger:set-failed portnum)
(debug:print 0 *default-log-port* "WARNING: failed to start on portnum: " portnum ", trying next port")
;; (thread-sleep! 0.1)
(rmt:try-start-server ipaddrstr
(portlogger:open-run-close
portlogger:find-port)))
(begin
(if (not *server-info*)
(set! *server-info* (make-servdat
host: ipaddrstr
port: portnum)))
(servdat-status-set! *server-info* 'starting)
(servdat-port-set! *server-info* portnum)
(if (not (servdat-rep *server-info*))
(servdat-rep-set! *server-info* (nn-socket 'rep)))
(let* ((rep (servdat-rep *server-info*)))
(debug:print 0 *default-log-port* "INFO: Trying to start server on " ipaddrstr ":" portnum)
(handle-exceptions
exn
(begin
(print-error-message exn)
(if (< portnum 64000)
(begin
(debug:print 0 *default-log-port* "WARNING: attempt to start server failed. Trying again ...")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(portlogger:open-run-close portlogger:set-failed portnum)
(debug:print 0 *default-log-port* "WARNING: failed to start on portnum: " portnum ", trying next port")
;; (thread-sleep! 0.1)
(rmt:try-start-server ipaddrstr
(portlogger:open-run-close portlogger:find-port)))
(begin
(print "ERROR: Tried and tried but could not start the server, stopping at port "portnum))))
(nn-bind rep (conc "tcp://*:" portnum))
rep)))))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;;======================================================================
;; C L I E N T S
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all-pkt-files)))
(define (server-address srv-pkt)
(conc (alist-ref 'host srv-pkt) ":"
(alist-ref 'port srv-pkt)))
(define (server-ready? host port key) ;; server-address is host:port
(let-values (((i o)(handle-exceptions
exn
(values #f #f)
(tcp-connect host port))))
(if (and i o)
(begin
(write `((cmd . ping)
(key . ,key)
(params . ())) o)
(let ((res (with-input-from-port i
read)))
(close-output-port o)
(close-input-port i)
res))
(begin ;; connection failed
(debug:print-info 0 *default-log-port* "Server at "host":"port" is not responding.")
#f))))
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all-pkt-files)))
(define (server-address srv-pkt)
(conc (alist-ref 'host srv-pkt) ":"
(alist-ref 'port srv-pkt)))
(define (server-ready? host port key) ;; server-address is host:port
;; (let-values (((i o)(handle-exceptions
;; exn
;; (values #f #f)
;; (tcp-connect host port))))
;; (if (and i o)
(let* ((data (sexpr->string `((cmd . ping)
(key . ,key)
(params . ()))))
(res (open-send-receive-nn (conc host ":" port) data)))
(string->sexpr res)))
;; (let ((res (with-input-from-port i
;; read)))
;; (close-output-port o)
;; (close-input-port i)
;; res))
;; (if (string? res)
;; (string->sexpr res)
;; res)))
;; (begin ;; connection failed
;; (debug:print-info 0 *default-log-port* "Server at "host":"port" is not responding.")
;; #f))))
;; (define (loop-test host port data) ;; server-address is host:port
;; ;; ping the server and ask it
;; ;; if it ready
;; ;; (let* ((sdat (servdat-init #f host port #f)))
;; ;; (http-transport:send-receive sdat "abc" 'ping '())))
;; (let* ((payload (sexpr->string data))
;; (res (with-input-from-request
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| ︙ | | | ︙ | |
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(exit))
(loop start-time
(equal? sdat last-sdat)
sdat))))))))
(define (rmt:register-server remote apath iface port server-key dbname)
(rmt:open-main-connection remote apath) ;; we need a channel to main.db
(rmt:send-receive-real remote apath ;; params: host port servkey pid ipaddr dbpath
(db:run-id->dbname #f) 'register-server `(,iface
,port
,server-key
,(current-process-id)
,iface
,apath
,dbname)))
(define (http-transport:wait-for-stable-interface #!optional (num-tries-allowed 100))
;; wait until *server-info* stops changing
(let* ((stime (current-seconds)))
(let loop ((last-host #f)
(last-port #f)
(tries 0))
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|
(exit))
(loop start-time
(equal? sdat last-sdat)
sdat))))))))
(define (rmt:register-server remote apath iface port server-key dbname)
(rmt:open-main-connection remote apath) ;; we need a channel to main.db
(rmt:send-receive-real remote apath ;; params: host port servkey pid ipaddr dbpath
(db:run-id->dbname #f)
'register-server `(,iface
,port
,server-key
,(current-process-id)
,iface
,apath
,dbname)))
(define (rmt:deregister-server remote apath iface port server-key dbname)
(rmt:open-main-connection remote apath) ;; we need a channel to main.db
(rmt:send-receive-real remote apath ;; params: host port servkey pid ipaddr dbpath
(db:run-id->dbname #f)
'deregister-server `(,iface
,port
,server-key
,(current-process-id)
,iface
,apath
,dbname)))
(define (http-transport:wait-for-stable-interface #!optional (num-tries-allowed 100))
;; wait until *server-info* stops changing
(let* ((stime (current-seconds)))
(let loop ((last-host #f)
(last-port #f)
(tries 0))
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| ︙ | | | ︙ | |
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|
;; main and run db servers have both got wait logic (could/should merge it)
(if is-main
(http-transport:wait-for-server pkts-dir dbname server-key)
(http-transport:wait-for-stable-interface))
;; this is our forever loop
(let* ((iface (servdat-host *server-info*))
(port (servdat-port *server-info*)))
(let loop ((count 0)
(bad-sync-count 0)
(start-time (current-milliseconds)))
(if (not is-main)
(debug:print-info 0 *default-log-port* "servdat-status is " (servdat-status *server-info*)))
;; set up the database handle
(mutex-lock! *heartbeat-mutex*)
(if (not *dbstruct-db*) ;; no db opened yet, open the db and register with main if appropriate
(let ((watchdog (bdat-watchdog *bdat*)))
(debug:print 0 *default-log-port* "SERVER: dbprep")
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|
;; main and run db servers have both got wait logic (could/should merge it)
(if is-main
(http-transport:wait-for-server pkts-dir dbname server-key)
(http-transport:wait-for-stable-interface))
;; this is our forever loop
(let* ((iface (servdat-host *server-info*))
(port (servdat-port *server-info*)))
(let loop ((count 0)
(bad-sync-count 0)
(start-time (current-milliseconds)))
(if (and (not is-main)
(common:low-noise-print 60 "servdat-status"))
(debug:print-info 0 *default-log-port* "servdat-status is " (servdat-status *server-info*)))
;; set up the database handle
(mutex-lock! *heartbeat-mutex*)
(if (not *dbstruct-db*) ;; no db opened yet, open the db and register with main if appropriate
(let ((watchdog (bdat-watchdog *bdat*)))
(debug:print 0 *default-log-port* "SERVER: dbprep")
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(begin
(debug:print 0 *default-log-port* "We are not the server for "dbname", exiting.")
(exit)))))
(debug:print 0 *default-log-port*
"SERVER: running, db "dbname" opened, megatest version: "
(common:get-full-version))
;; start the watchdog
(if watchdog
(if (not (member (thread-state watchdog)
'(ready running blocked
sleeping dead)))
(begin
(debug:print-info 0 *default-log-port* "Starting watchdog thread (in state "(thread-state watchdog)")")
(thread-start! watchdog))
(debug:print-info 0 *default-log-port* "Not starting watchdog thread (in state "(thread-state watchdog)")"))
(debug:print 0 *default-log-port* "ERROR: *watchdog* not setup, cannot start it."))
#;(loop (+ count 1) bad-sync-count start-time)))
(mutex-unlock! *heartbeat-mutex*)
;; when things go wrong we don't want to be doing the various
;; queries too often so we strive to run this stuff only every
;; four seconds or so.
(let* ((sync-time (- (current-milliseconds) start-time))
(rem-time (quotient (- 4000 sync-time) 1000)))
|
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|
(begin
(debug:print 0 *default-log-port* "We are not the server for "dbname", exiting.")
(exit)))))
(debug:print 0 *default-log-port*
"SERVER: running, db "dbname" opened, megatest version: "
(common:get-full-version))
;; start the watchdog
;; is this really needed?
#;(if watchdog
(if (not (member (thread-state watchdog)
'(ready running blocked
sleeping dead)))
(begin
(debug:print-info 0 *default-log-port* "Starting watchdog thread (in state "(thread-state watchdog)")")
(thread-start! watchdog))
(debug:print-info 0 *default-log-port* "Not starting watchdog thread (in state "(thread-state watchdog)")"))
(debug:print 0 *default-log-port* "ERROR: *watchdog* not setup, cannot start it."))
#;(loop (+ count 1) bad-sync-count start-time)
))
(debug:print-info 0 *default-log-port* "syncing "*toppath*" "dbname" at "(current-seconds))
(db:sync-inmem->disk *dbstruct-db* *toppath* dbname)
(mutex-unlock! *heartbeat-mutex*)
;; when things go wrong we don't want to be doing the various
;; queries too often so we strive to run this stuff only every
;; four seconds or so.
(let* ((sync-time (- (current-milliseconds) start-time))
(rem-time (quotient (- 4000 sync-time) 1000)))
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| ︙ | | | ︙ | |
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(> (+ last-access server-timeout)
(current-seconds)))
(if (common:low-noise-print 120 "server continuing")
(debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access)))
(loop 0 bad-sync-count (current-milliseconds)))
(else
(debug:print-info 0 *default-log-port* "Server timed out. seconds since last db access: " (- (current-seconds) last-access))
(http-transport:server-shutdown port))))))))
(define (http-transport:server-shutdown port)
(begin
;;(BB> "http-transport:server-shutdown called")
(debug:print-info 0 *default-log-port* "Starting to shutdown the server. pid="(current-process-id))
;;
;; start_shutdown
;;
;; deregister the server
(bdat-time-to-exit-set! *bdat* #t) ;; tell on-exit to be fast as we've already cleaned up
(portlogger:open-run-close portlogger:set-port port "released")
(thread-sleep! 1)
;; (debug:print-info 0 *default-log-port* "Max cached queries was " *max-cache-size*)
;; (debug:print-info 0 *default-log-port* "Number of cached writes " *number-of-writes*)
;; (debug:print-info 0 *default-log-port* "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 *default-log-port* "Number non-cached queries " *number-non-write-queries*)
;; (debug:print-info 0 *default-log-port* "Average non-cached time "
;; (if (eq? *number-non-write-queries* 0)
;; "n/a (no queries)"
;; (/ *total-non-write-delay*
;; *number-non-write-queries*))
;; " ms")
(db:print-current-query-stats)
(common:save-pkt `((action . exit)
(T . server)
(pid . ,(current-process-id)))
*configdat* #t)
(debug:print-info 0 *default-log-port* "Server shutdown complete. Exiting")
(exit)))
;; Call this to start the actual server
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(> (+ last-access server-timeout)
(current-seconds)))
(if (common:low-noise-print 120 "server continuing")
(debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access)))
(loop 0 bad-sync-count (current-milliseconds)))
(else
(debug:print-info 0 *default-log-port* "Server timed out. seconds since last db access: " (- (current-seconds) last-access))
;; send self 'quit here
(http-transport:server-shutdown port))))))))
(define (http-transport:server-shutdown port)
(begin
;;(BB> "http-transport:server-shutdown called")
(debug:print-info 0 *default-log-port* "Starting to shutdown the server. pid="(current-process-id))
;;
;; start_shutdown
;;
;; deregister the server
(rmt:server-shutdown)
(set! *unclean-shutdown* #f)
(bdat-time-to-exit-set! *bdat* #t) ;; tell on-exit to be fast as we've already cleaned up
;; (portlogger:open-run-close portlogger:set-port port "released") ;; done in rmt:run
(thread-sleep! 1)
;; (debug:print-info 0 *default-log-port* "Max cached queries was " *max-cache-size*)
;; (debug:print-info 0 *default-log-port* "Number of cached writes " *number-of-writes*)
;; (debug:print-info 0 *default-log-port* "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 *default-log-port* "Number non-cached queries " *number-non-write-queries*)
;; (debug:print-info 0 *default-log-port* "Average non-cached time "
;; (if (eq? *number-non-write-queries* 0)
;; "n/a (no queries)"
;; (/ *total-non-write-delay*
;; *number-non-write-queries*))
;; " ms")
(db:print-current-query-stats)
#;(common:save-pkt `((action . exit)
(T . server)
(pid . ,(current-process-id)))
*configdat* #t)
(debug:print-info 0 *default-log-port* "Server shutdown complete. Exiting")
(exit)))
;; Call this to start the actual server
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(argv)))))))
(define (rmt:get-signature)
(if *my-signature* *my-signature*
(let ((sig (rmt:mk-signature)))
(set! *my-signature* sig)
*my-signature*)))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;; run ping in separate process, safest way in some cases
;;
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(argv)))))))
(define (rmt:get-signature)
(if *my-signature* *my-signature*
(let ((sig (rmt:mk-signature)))
(set! *my-signature* sig)
*my-signature*)))
;;======================================================================
;; Nanomsg transport
;;======================================================================
(define (is-port-in-use port-num)
(let* ((ret #f))
(let-values (((inp oup pid)
(process "netstat" (list "-tulpn" ))))
(let loop ((inl (read-line inp)))
(if (not (eof-object? inl))
(begin
(if (string-search (regexp (conc ":" port-num)) inl)
(begin
;(print "Output: " inl)
(set! ret #t))
(loop (read-line inp)))))))
ret))
;;start a server, returns the connection
;;
(define (start-nn-server portnum )
(let ((rep (nn-socket 'rep)))
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
(print "ERROR: Failed to start server \"" emsg "\"")
(exit 1))
(nn-bind rep (conc "tcp://*:" portnum)))
rep))
;; open connection to server, send message, close connection
;;
(define (open-send-close-nn host-port msg #!key (timeout 3) ) ;; default timeout is 3 seconds
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
;; (contacts (alist-ref 'contact attrib))
;; (mode (alist-ref 'mode attrib))
)
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
;; Send notification
(debug:print 0 *default-log-port* "ERROR: Failed to connect / send to " uri " message was \"" emsg "\"" )
#f)
(nn-connect req uri)
;; (print "Connected to the server " )
(nn-send req msg)
;; (print "Request Sent")
(let* ((th1 (make-thread (lambda ()
(let ((resp (nn-recv req)))
(nn-close req)
(set! res (if (equal? resp "ok")
#t
#f))))
"recv thread"))
(th2 (make-thread (lambda ()
(thread-sleep! timeout)
(thread-terminate! th1))
"timer thread")))
(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
res))))
(define (open-send-receive-nn host-port msg #!key (timeout 3) ) ;; default timeout is 3 seconds
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
;; (contacts (alist-ref 'contact attrib))
;; (mode (alist-ref 'mode attrib))
)
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
;; Send notification
(debug:print 0 *default-log-port* "ERROR: Failed to connect / send to " uri " message was \"" emsg "\"" )
#f)
(nn-connect req uri)
;; (print "Connected to the server " )
(nn-send req msg)
;; (print "Request Sent")
;; receive code here
;;(print (nn-recv req))
(let* ((th1 (make-thread (lambda ()
(let ((resp (nn-recv req)))
(nn-close req)
(print resp)
(set! res resp)))
"recv thread"))
(th2 (make-thread (lambda ()
(thread-sleep! timeout)
(thread-terminate! th1))
"timer thread")))
(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
res))))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;; run ping in separate process, safest way in some cases
;;
|
| ︙ | | | ︙ | |