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;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;
;;======================================================================
(use format typed-records) ;; RADT => purpose of json format??
(declare (unit rmt))
(declare (uses debugprint))
(declare (uses api))
(declare (uses http-transport))
(declare (uses commonmod))
(declare (uses dbfile))
(declare (uses dbmod))
(declare (uses tcp-transportmod))
(include "common_records.scm")
;; (declare (uses rmtmod))
(import dbfile) ;; rmtmod)
(import dbfile
rmtmod
commonmod
debugprint
;; dbmemmod
dbfile
dbmod
tcp-transportmod)
;;
;; THESE ARE ALL CALLED ON THE CLIENT SIDE!!!
;;
;; generate entries for ~/.megatestrc with the following
;;
;; grep define ../rmt.scm | grep rmt: |perl -pi -e 's/\(define\s+\((\S+)\W.*$/\1/'|sort -u
;;======================================================================
;; S U P P O R T F U N C T I O N S
;;======================================================================
;; if a server is either running or in the process of starting call client:setup
;; else return #f to let the calling proc know that there is no server available
;;
(define (rmt:get-connection-info areapath #!key (area-dat #f)) ;; TODO: push areapath down.
(let* ((runremote (or area-dat *runremote*))
(cinfo (if (remote? runremote)
(remote-conndat runremote)
#f)))
(if cinfo
cinfo
(if (server:check-if-running areapath)
(client:setup areapath)
#f))))
#;(common:telemetry-log (conc "rmt:"(->string cmd))
payload: `((rid . ,rid)
(params . ,params)))
(if (> attemptnum 2)
(debug:print 0 *default-log-port* "INFO: attemptnum in rmt:send-receive is " attemptnum))
(cond
((> attemptnum 2) (thread-sleep! 0.05))
((> attemptnum 10) (thread-sleep! 0.5))
((> attemptnum 20) (thread-sleep! 1)))
(if (and (> attemptnum 5) (= 0 (modulo attemptnum 15)))
(begin (server:run *toppath*) (thread-sleep! 3)))
;;DOT digraph megatest_state_status {
;;DOT ranksep=0;
;;DOT // rankdir=LR;
;;DOT node [shape="box"];
;;DOT "rmt:send-receive" -> MUTEXLOCK;
;;DOT { edge [style=invis];"case 1" -> "case 2" -> "case 3" -> "case 4" -> "case 5" -> "case 6" -> "case 7" -> "case 8" -> "case 9" -> "case 10" -> "case 11"; }
;; do all the prep locked under the rmt-mutex
(mutex-lock! *rmt-mutex*)
(readonly-mode (rmtmod:calc-ro-mode runremote *toppath*)))
(readonly-mode (rmtmod:calc-ro-mode runremote *toppath*))
(testsuite (common:get-testsuite-name))
;; DOT INIT_RUNREMOTE; // leaving off - doesn't really add to the clarity
;; DOT MUTEXLOCK -> INIT_RUNREMOTE [label="no remote?"];
;; DOT INIT_RUNREMOTE -> MUTEXLOCK;
;; ensure we have a record for our connection for given area
(if (not runremote) ;; can remove this one. should never get here.
(begin
(set! *runremote* (make-remote))
(let* ((server-info (remote-server-info *runremote*)))
(if server-info
(begin
(remote-server-url-set! *runremote* (server:record->url server-info))
(remote-server-id-set! *runremote* (server:record->id server-info)))))
(set! runremote *runremote*))) ;; new runremote will come from this on next iteration
;; DOT SET_HOMEHOST; // leaving off - doesn't really add to the clarity
;; DOT MUTEXLOCK -> SET_HOMEHOST [label="no homehost?"];
;; DOT SET_HOMEHOST -> MUTEXLOCK;
;; ensure we have a homehost record
(if (not (pair? (remote-hh-dat runremote))) ;; not on homehost
(thread-sleep! 0.1) ;; since we shouldn't get here, delay a little
(let ((hh-data (server:choose-server areapath 'homehost)))
(remote-hh-dat-set! runremote (or hh-data (cons #f #f)))))
;;(print "BB> readonly-mode is "readonly-mode" dbfile is "dbfile)
(cond
#;((> (- (current-seconds)(remote-connect-time runremote)) 180) ;; reconnect to server every 180 seconds
(debug:print 0 *default-log-port* "Forcing reconnect to server(s) due to 180 second timeout.")
(set! *runremote* #f)
;; BUG: close-connections should go here?
(mutex-unlock! *rmt-mutex*)
(rmt:send-receive cmd rid params attemptnum: 1 area-dat: area-dat))
;;DOT EXIT;
;;DOT MUTEXLOCK -> EXIT [label="> 15 attempts"]; {rank=same "case 1" "EXIT" }
;; give up if more than 150 attempts
((> attemptnum 150)
(debug:print 0 *default-log-port* "ERROR: 150 tries to start/connect to server. Giving up.")
(exit 1))
;;DOT CASE2 [label="local\nreadonly\nquery"];
;;DOT MUTEXLOCK -> CASE2; {rank=same "case 2" CASE2}
;;DOT CASE2 -> "rmt:open-qry-close-locally";
;; readonly mode, read request- handle it - case 2
((and readonly-mode
(member cmd api:read-only-queries))
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 2")
(rmt:open-qry-close-locally cmd 0 params)
)
;;DOT CASE3 [label="write in\nread-only mode"];
;;DOT MUTEXLOCK -> CASE3 [label="readonly\nmode?"]; {rank=same "case 3" CASE3}
;;DOT CASE3 -> "#f";
;; readonly mode, write request. Do nothing, return #f
(readonly-mode (extras-readonly-mode *rmt-mutex* *default-log-port* cmd params))
;; This block was for pre-emptively resetting the connection if there had been no communication for some time.
;; I don't think it adds any value. If the server is not there, just fail and start a new connection.
;; also, the expire-time calculation might not be correct. We want, time-since-last-server-access > (server:get-timeout)
;;
;;DOT CASE4 [label="reset\nconnection"];
;;DOT MUTEXLOCK -> CASE4 [label="have connection,\nlast_access > expire_time"]; {rank=same "case 4" CASE4}
;;DOT CASE4 -> "rmt:send-receive";
;; reset the connection if it has been unused too long
((and runremote
(remote-conndat runremote)
(> (current-seconds) ;; if it has been more than server-timeout seconds since last contact, close this connection and start a new on
(+ (http-transport:server-dat-get-last-access (remote-conndat runremote))
(remote-server-timeout runremote))))
(debug:print-info 0 *default-log-port* "Connection to " (remote-server-url runremote) " expired due to no accesses, forcing new connection.")
(remote-conndat-set! runremote #f) ;; invalidate the connection, thus forcing a new connection.
(http-transport:close-connections area-dat: runremote)
(mutex-unlock! *rmt-mutex*)
(rmt:send-receive cmd rid params attemptnum: attemptnum))
;;DOT CASE5 [label="local\nread"];
;;DOT MUTEXLOCK -> CASE5 [label="server not required,\non homehost,\nread-only query"]; {rank=same "case 5" CASE5};
;;DOT CASE5 -> "rmt:open-qry-close-locally";
;; on homehost and this is a read
((and (not (remote-force-server runremote)) ;; honor forced use of server, i.e. server NOT required
(rmt:on-homehost? runremote)
(member cmd api:read-only-queries)) ;; this is a read
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 5")
(rmt:open-qry-close-locally cmd 0 params))
;;DOT CASE6 [label="init\nremote"];
;;DOT MUTEXLOCK -> CASE6 [label="on homehost,\nwrite query,\nhave server,\ncan't reach it"]; {rank=same "case 6" CASE6};
;;DOT CASE6 -> "rmt:send-receive";
;; on homehost and this is a write, we already have a server, but server has died
;; reinstate this keep-alive section but inject a time condition into the (add ...
#;((and (cdr (remote-hh-dat runremote)) ;; on homehost
(not (member cmd api:read-only-queries)) ;; this is a write
(remote-server-url runremote) ;; have a server
(not (server:ping (remote-server-url runremote) (remote-server-id runremote)))) ;; server has died. NOTE: this is not a cheap call! Need better approach.
(debug:print 0 *default-log-port* "WARNING: server appears to have died, trying to reconnect, case 6")
(http-transport:close-connections area-dat: runremote) ;; make sure to clean up
(set! *runremote* (make-remote))
(let* ((server-info (remote-server-info *runremote*)))
(if server-info
(begin
(remote-server-url-set! *runremote* (server:record->url server-info))
(remote-server-id-set! *runremote* (server:record->id server-info)))))
(remote-force-server-set! runremote (common:force-server?))
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 6")
(rmt:send-receive cmd rid params attemptnum: attemptnum))
;;DOT CASE7 [label="homehost\nwrite"];
;;DOT MUTEXLOCK -> CASE7 [label="server not required,\non homehost,\na write,\nhave a server"]; {rank=same "case 7" CASE7};
;;DOT CASE7 -> "rmt:open-qry-close-locally";
;; on homehost and this is a write, we already have a server
((and (not (remote-force-server runremote)) ;; honor forced use of server, i.e. server NOT required
(cdr (remote-hh-dat runremote)) ;; on homehost
(not (member cmd api:read-only-queries)) ;; this is a write
(remote-server-url runremote)) ;; have a server
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 4.1")
(rmt:open-qry-close-locally cmd 0 params))
;;DOT CASE8 [label="force\nserver"];
;;DOT MUTEXLOCK -> CASE8 [label="server not required,\nhave homehost info,\nno connection yet,\nnot a read-only query"]; {rank=same "case 8" CASE8};
;;DOT CASE8 -> "rmt:open-qry-close-locally";
;; on homehost, no server contact made and this is a write, passively start a server
((and (not (remote-force-server runremote)) ;; honor forced use of server, i.e. server NOT required
(cdr (remote-hh-dat runremote)) ;; have homehost
(not (remote-server-url runremote)) ;; no connection yet
(not (member cmd api:read-only-queries))) ;; not a read-only query
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 8")
(let ((server-info (server:check-if-running *toppath*))) ;; (server:read-dotserver->url *toppath*))) ;; (server:check-if-running *toppath*))) ;; Do NOT want to run server:check-if-running - very expensive to do for every write call
(if server-info
(begin
(remote-server-url-set! runremote (server:record->url server-info)) ;; the string can be consumed by the client setup if needed
(remote-server-id-set! runremote (server:record->id server-info)))
(if (common:force-server?)
(server:start-and-wait *toppath*)
(server:kind-run *toppath*)))
(remote-force-server-set! runremote (common:force-server?))
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 8.1")
(rmt:open-qry-close-locally cmd 0 params)))
;;DOT CASE9 [label="force server\nnot on homehost"];
;;DOT MUTEXLOCK -> CASE9 [label="no connection\nand either require server\nor not on homehost"]; {rank=same "case 9" CASE9};
;;DOT CASE9 -> "start\nserver" -> "rmt:send-receive";
((or (and (remote-force-server runremote) ;; we are forcing a server and don't yet have a connection to one
(not (remote-conndat runremote)))
(and (not (cdr (remote-hh-dat runremote))) ;; not on a homehost
(not (remote-conndat runremote)))) ;; and no connection
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 9, hh-dat: " (remote-hh-dat runremote) " conndat: " (remote-conndat runremote))
(mutex-unlock! *rmt-mutex*)
(if (not (server:check-if-running *toppath*)) ;; who knows, maybe one has started up?
(server:start-and-wait *toppath*))
(remote-conndat-set! runremote (rmt:get-connection-info *toppath*)) ;; calls client:setup which calls client:setup-http
(rmt:send-receive cmd rid params attemptnum: attemptnum)) ;; TODO: add back-off timeout as
;;DOT CASE10 [label="on homehost"];
;;DOT MUTEXLOCK -> CASE10 [label="server not required,\non homehost"]; {rank=same "case 10" CASE10};
;;DOT CASE10 -> "rmt:open-qry-close-locally";
;; all set up if get this far, dispatch the query
((and (not (remote-force-server runremote))
(cdr (remote-hh-dat runremote))) ;; we are on homehost
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 10")
(rmt:open-qry-close-locally cmd (if rid rid 0) params))
;;DOT CASE11 [label="send_receive"];
;;DOT MUTEXLOCK -> CASE11 [label="else"]; {rank=same "case 11" CASE11};
;;DOT CASE11 -> "rmt:send-receive" [label="call failed"];
;;DOT CASE11 -> "RESULT" [label="call succeeded"];
;; not on homehost, do server query
(else (extras-case-11 *default-log-port* runremote cmd params attemptnum rid)))))
;;DOT }
;; No Title
;; Error: (vector-ref) out of range
;; #(#<condition: (exn type)> (#("db.scm:3740: regex#regexp" #f #f) #("db.scm:3739: regex#string-substitute" #f #f) #("db.scm:3738: base64#base64-decode" #f #f) #("db.scm:3737: z3#z3:decode-buffer" #f #f) #("db.scm:3736: with-input-from-string" #f #f) #("db.scm:3741: s11n#deserialize" #f #f) #("api.scm:374: api:execute-requests" #f #f) #("api.scm:139: call-with-current-continuation" #f #f) #("api.scm:139: with-exception-handler" #f #f) #("api.scm:139: ##sys#call-with-values" #f #f) #("api.scm:158: string->symbol" #f #f) #("api.scm:160: current-milliseconds" #f #f) #("api.scm:161: dbr:dbstruct-read-only" #f #f) #("api.scm:139: k15" #f #f) #("api.scm:139: g19" #f #f) #("api.scm:142: get-call-chain" #f #f)) #("get-test-info-by-id" (1102 507299)))
;; 6
;;
;; Call history:
;;
;; http-transport.scm:306: thread-terminate!
;; http-transport.scm:307: debug:print-info
;; common_records.scm:235: debug:debug-mode
;; rmt.scm:259: k587
;; rmt.scm:259: g591
;; rmt.scm:276: http-transport:server-dat-update-last-access
;; http-transport.scm:364: current-seconds
;; rmt.scm:282: debug:print-info
;; common_records.scm:235: debug:debug-mode
;; rmt.scm:283: mutex-unlock!
;; rmt.scm:287: extras-transport-succeded <--
;; +-----------------------------------------------------------------------------+
;; | Exit Status : 70
;;
;; bunch of small functions factored out of send-receive to make debug easier
;;
(define (extras-case-11 *default-log-port* runremote cmd params attemptnum rid)
;; (mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 9")
;; (mutex-lock! *rmt-mutex*)
(let* ((conninfo (remote-conndat runremote))
(dat-in (case (remote-transport runremote)
((http) (condition-case ;; handling here has
;; caused a lot of
;; problems. However it
;; is needed to deal with
;; attemtped
;; communication to
;; servers that have gone
;; away
(http-transport:client-api-send-receive 0 conninfo cmd params)
((servermismatch) (vector #f "Server id mismatch" ))
((commfail)(vector #f "communications fail"))
((exn)(vector #f "other fail" (print-call-chain)))))
(else
(debug:print 0 *default-log-port* "ERROR: transport " (remote-transport runremote) " not supported")
(exit))))
(dat (if (and (vector? dat-in) ;; ... check it is a correct size
(> (vector-length dat-in) 1))
dat-in
(vector #f (conc "communications fail (type 2), dat-in=" dat-in))))
(success (if (vector? dat) (vector-ref dat 0) #f))
(res (if (vector? dat) (vector-ref dat 1) #f)))
(if (and (vector? conninfo) (< 5 (vector-length conninfo)))
(http-transport:server-dat-update-last-access conninfo) ;; refresh access time
(begin
(debug:print 0 *default-log-port* "INFO: Should not get here! conninfo=" conninfo)
(set! conninfo #f)
(remote-conndat-set! *runremote* #f) ;; NOTE: *runremote* is global copy of runremote. Purpose: factor out global.
(http-transport:close-connections area-dat: runremote)))
(debug:print-info 13 *default-log-port* "rmt:send-receive, case 9. conninfo=" conninfo " dat=" dat " runremote = " runremote)
(mutex-unlock! *rmt-mutex*)
(if success ;; success only tells us that the transport was
;; successful, have to examine the data to see if
;; there was a detected issue at the other end
(extras-transport-succeded *default-log-port* *rmt-mutex* attemptnum runremote res params rid cmd)
(begin
(debug:print-error 0 *default-log-port* " dat=" dat)
(extras-transport-failed *default-log-port* *rmt-mutex* attemptnum runremote cmd rid params))
)))
|
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(define (rmt:login run-id)
(rmt:send-receive 'login run-id (list *toppath* megatest-version (client:get-signature))))
;; This login does no retries under the hood - it acts a bit like a ping.
;; Deprecated for nmsg-transport.
;;
(define (rmt:login-no-auto-client-setup connection-info)
;; (define (rmt:login-no-auto-client-setup runremote)
(case *transport-type* ;; run-id of 0 is just a placeholder
((http)(rmt:send-receive-no-auto-client-setup connection-info 'login 0 (list *toppath* megatest-version (client:get-signature))))
;;((nmsg)(nmsg-transport:client-api-send-receive run-id connection-info 'login (list *toppath* megatest-version run-id *my-client-signature*)))
))
;; hand off a call to one of the db:queries statements
;; added run-id to make looking up the correct db possible
;;
(define (rmt:general-call stmtname run-id . params)
(rmt:send-receive 'general-call run-id (append (list stmtname run-id) params)))
(define (rmt:get-run-record-ids target run keynames test-patt)
(rmt:send-receive 'get-run-record-ids #f (list target run keynames test-patt)))
(define (rmt:get-run-record-ids target run keynames )
(rmt:send-receive 'get-run-record-ids #f (list target run keynames )))
(define (rmt:get-changed-record-ids since-time)
(rmt:send-receive 'get-changed-record-ids #f (list since-time)) )
(define (rmt:get-all-runids)
(rmt:send-receive 'get-all-run-ids #f '()) )
(define (rmt:get-changed-record-run-ids since-time)
(rmt:send-receive 'get-changed-record-run-ids #f (list since-time)))
(define (rmt:get-changed-record-test-ids run-id since-time)
(rmt:send-receive 'get-changed-record-test-ids run-id (list since-time run-id)))
(define (rmt:drop-all-triggers)
(rmt:send-receive 'drop-all-triggers #f '()))
(define (rmt:create-all-triggers)
(rmt:send-receive 'create-all-triggers #f '()))
;;======================================================================
;; T E S T M E T A
;;======================================================================
(define (rmt:get-tests-tags)
(rmt:send-receive 'get-tests-tags #f '()))
;;======================================================================
;; K E Y S
;;======================================================================
;; These require run-id because the values come from the run!
;; however the query must still apply to main.db
;;
(define (rmt:get-key-val-pairs run-id)
(rmt:send-receive 'get-key-val-pairs run-id (list run-id)))
(rmt:send-receive 'get-key-val-pairs #f (list run-id)))
(define (rmt:get-keys)
(if *db-keys* *db-keys*
(let ((res (rmt:send-receive 'get-keys #f '())))
(set! *db-keys* res)
res)))
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res)))
(define (rmt:get-targets)
(rmt:send-receive 'get-targets #f '()))
(define (rmt:get-target run-id)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'get-target run-id (list run-id)))
(rmt:send-receive 'get-target #f (list run-id)))
(define (rmt:get-run-times runpatt targetpatt)
(rmt:send-receive 'get-run-times #f (list runpatt targetpatt )))
;;======================================================================
;; T E S T S
;;======================================================================
;; Just some syntatic sugar
(define (rmt:register-test run-id test-name item-path)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:general-call 'register-test run-id run-id test-name item-path))
(define (rmt:get-test-id run-id testname item-path)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'get-test-id run-id (list run-id testname item-path)))
;; run-id is NOT used
;;
(define (rmt:get-test-info-by-id run-id test-id)
(if (number? test-id)
(rmt:send-receive 'get-test-info-by-id run-id (list run-id test-id))
(begin
(debug:print 0 *default-log-port* "WARNING: Bad data handed to rmt:get-test-info-by-id run-id=" run-id ", test-id=" test-id)
(print-call-chain (current-error-port))
#f)))
(define (rmt:test-get-rundir-from-test-id run-id test-id)
(rmt:send-receive 'test-get-rundir-from-test-id run-id (list run-id test-id)))
(define (rmt:open-test-db-by-test-id run-id test-id #!key (work-area #f))
(assert (number? run-id) "FATAL: Run id required.")
(let* ((test-path (if (string? work-area)
work-area
(rmt:test-get-rundir-from-test-id run-id test-id))))
(debug:print 3 *default-log-port* "TEST PATH: " test-path)
(open-test-db test-path)))
;; WARNING: This currently bypasses the transaction wrapped writes system
(define (rmt:test-set-state-status-by-id run-id test-id newstate newstatus newcomment)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'test-set-state-status-by-id run-id (list run-id test-id newstate newstatus newcomment)))
(define (rmt:set-tests-state-status run-id testnames currstate currstatus newstate newstatus)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'set-tests-state-status run-id (list run-id testnames currstate currstatus newstate newstatus)))
(define (rmt:get-tests-for-run run-id testpatt states statuses offset limit not-in sort-by sort-order qryvals last-update mode)
(assert (number? run-id) "FATAL: Run id required.")
;; (if (number? run-id)
(rmt:send-receive 'get-tests-for-run run-id (list run-id testpatt states statuses offset limit not-in sort-by sort-order qryvals last-update mode)))
;; (begin
;; (debug:print-error 0 *default-log-port* "rmt:get-tests-for-run called with bad run-id=" run-id)
;; (print-call-chain (current-error-port))
;; '())))
(define (rmt:get-tests-for-run-state-status run-id testpatt last-update)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'get-tests-for-run-state-status run-id (list run-id testpatt last-update)))
;; get stuff via synchash
(define (rmt:synchash-get run-id proc synckey keynum params)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'synchash-get run-id (list run-id proc synckey keynum params)))
(define (rmt:get-tests-for-run-mindata run-id testpatt states status not-in)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'get-tests-for-run-mindata run-id (list run-id testpatt states status not-in)))
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(define (rmt:test-set-archive-block-id run-id test-id archive-block-id)
(assert (number? run-id) "FATAL: Run id required.")
(rmt:send-receive 'test-set-archive-block-id run-id (list run-id test-id archive-block-id)))
(define (rmt:test-get-archive-block-info archive-block-id)
(rmt:send-receive 'test-get-archive-block-info #f (list archive-block-id)))
(if (and runremote
(remote-ro-mode-checked runremote))
(remote-ro-mode runremote)
(let* ((mtcfgfile (conc *toppath* "/megatest.config"))
(ro-mode (not (file-write-access? mtcfgfile)))) ;; TODO: use dbstruct or runremote to figure this out in future
(if runremote
(begin
(remote-ro-mode-set! runremote ro-mode)
(remote-ro-mode-checked-set! runremote #t)
ro-mode)
ro-mode))))
(if (and runremote
(remote-ro-mode-checked runremote))
(remote-ro-mode runremote)
(let* ((mtcfgfile (conc *toppath* "/megatest.config"))
(ro-mode (not (file-write-access? mtcfgfile)))) ;; TODO: use dbstruct or runremote to figure this out in future
(if runremote
(begin
(remote-ro-mode-set! runremote ro-mode)
(remote-ro-mode-checked-set! runremote #t)
ro-mode)
ro-mode))))
((tcp)
(define (extras-readonly-mode rmt-mutex log-port cmd params)
(mutex-unlock! rmt-mutex)
(debug:print-info 12 log-port "rmt:send-receive, case 3")
(debug:print 0 log-port "WARNING: write transaction requested on a readonly area. cmd="cmd" params="params)
#f)
(define (extras-transport-failed *default-log-port* *rmt-mutex* attemptnum runremote cmd rid params)
(debug:print 0 *default-log-port* "WARNING: communication failed. Trying again, try num: " attemptnum)
(mutex-lock! *rmt-mutex*)
(remote-conndat-set! runremote #f)
(http-transport:close-connections area-dat: runremote)
(remote-server-url-set! runremote #f)
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 9.1")
(rmt:send-receive cmd rid params attemptnum: (+ attemptnum 1)))
(define (extras-transport-succeded *default-log-port* *rmt-mutex* attemptnum runremote res params rid cmd)
(if (and (vector? res)
(eq? (vector-length res) 2)
(eq? (vector-ref res 1) 'overloaded)) ;; since we are
;; looking at the
;; data to carry the
;; error we'll use a
;; fairly obtuse
;; combo to minimise
;; the chances of
;; some sort of
;; collision. this
;; is the case where
;; the returned data
;; is bad or the
;; server is
;; overloaded and we
;; want to ease off
;; the queries
(let ((wait-delay (+ attemptnum (* attemptnum 10))))
(debug:print 0 *default-log-port* "WARNING: server is overloaded. Delaying " wait-delay " seconds and trying call again.")
(mutex-lock! *rmt-mutex*)
(http-transport:close-connections area-dat: runremote)
(set! *runremote* #f) ;; force starting over
(mutex-unlock! *rmt-mutex*)
(thread-sleep! wait-delay)
(rmt:send-receive cmd rid params attemptnum: (+ attemptnum 1)))
res)) ;; All good, return res
#;(set-functions rmt:send-receive remote-server-url-set!
http-transport:close-connections remote-conndat-set!
debug:print debug:print-info
remote-ro-mode remote-ro-mode-set!
remote-ro-mode-checked-set! remote-ro-mode-checked)
|