Changes In Branch multi-transport Through [22a2d4ad0b] Excluding Merge-Ins
This is equivalent to a diff from 6bba674f33 to 22a2d4ad0b
2013-01-29
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10:15 | Merged multi-transport to trunk, all tests passed check-in: 19f85b577e user: mrwellan tags: trunk | |
2013-01-27
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22:59 | Most cleanup done, routines consolidated check-in: 12356df330 user: matt tags: multi-transport | |
19:55 | Patched in zmq changes. Not functional yet check-in: 22a2d4ad0b user: matt tags: multi-transport | |
16:45 | Default of direct fs access done check-in: 5deab59f4e user: matt tags: multi-transport | |
13:14 | Creating branch for multi transport options, http, rpc, zmq, and network fs check-in: 66763d5399 user: matt tags: multi-transport | |
13:11 | merged trunk into sqlite3-logging Closed-Leaf check-in: 7bd6b6dae6 user: matt tags: sqlite3-logging | |
12:22 | Merged http-transport to trunk check-in: 6bba674f33 user: matt tags: trunk | |
12:17 | Merged zmq-3.2.2 to trunk check-in: 3be673e9be user: matt tags: trunk | |
10:04 | Streamlined db access a little, test4 completes in reasonable time Closed-Leaf check-in: a893c641ca user: matt tags: http-transport | |
Modified Makefile from [a4b44c1e54] to [aa9943da6e].
1 2 3 4 5 6 7 | PREFIX=$(PWD) CSCOPTS= INSTALL=install SRCFILES = common.scm items.scm launch.scm \ ods.scm runconfig.scm server.scm configf.scm \ db.scm keys.scm margs.scm megatest-version.scm \ | | > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | PREFIX=$(PWD) CSCOPTS= INSTALL=install SRCFILES = common.scm items.scm launch.scm \ ods.scm runconfig.scm server.scm configf.scm \ db.scm keys.scm margs.scm megatest-version.scm \ process.scm runs.scm tasks.scm tests.scm genexample.scm \ fs-transport.scm GUISRCF = dashboard.scm dashboard-tests.scm dashboard-guimonitor.scm dashboard-main.scm OFILES = $(SRCFILES:%.scm=%.o) GOFILES = $(GUISRCF:%.scm=%.o) ADTLSCR=mt_laststep mt_runstep mt_ezstep |
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Modified common.scm from [1ba863b641] to [a6d027f297].
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38 39 40 41 42 43 44 45 46 47 48 49 50 51 | (define *waiting-queue* (make-hash-table)) (define *test-meta-updated* (make-hash-table)) (define *globalexitstatus* 0) ;; attempt to work around possible thread issues (define *passnum* 0) ;; when running track calls to run-tests or similar ;; SERVER (define *my-client-signature* #f) (define *rpc:listener* #f) ;; if set up for server communication this will hold the tcp port (define *runremote* #f) ;; if set up for server communication this will hold <host port> (define *last-db-access* (current-seconds)) ;; update when db is accessed via server (define *max-cache-size* 0) (define *logged-in-clients* (make-hash-table)) (define *client-non-blocking-mode* #f) (define *server-id* #f) | > > | 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | (define *waiting-queue* (make-hash-table)) (define *test-meta-updated* (make-hash-table)) (define *globalexitstatus* 0) ;; attempt to work around possible thread issues (define *passnum* 0) ;; when running track calls to run-tests or similar ;; SERVER (define *my-client-signature* #f) (define *transport-type* 'fs) (define *megatest-db* #f) (define *rpc:listener* #f) ;; if set up for server communication this will hold the tcp port (define *runremote* #f) ;; if set up for server communication this will hold <host port> (define *last-db-access* (current-seconds)) ;; update when db is accessed via server (define *max-cache-size* 0) (define *logged-in-clients* (make-hash-table)) (define *client-non-blocking-mode* #f) (define *server-id* #f) |
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Modified db.scm from [4a4c4c2fc7] to [7c779ff845].
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15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | (require-extension (srfi 18) extras tcp) ;; rpc) ;; (import (prefix rpc rpc:)) (use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64) (import (prefix sqlite3 sqlite3:)) (import (prefix base64 base64:)) (declare (unit db)) (declare (uses common)) (declare (uses keys)) (declare (uses ods)) (include "common_records.scm") (include "db_records.scm") (include "key_records.scm") (include "run_records.scm") ;; timestamp type (val1 val2 ...) | > > > > | 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | (require-extension (srfi 18) extras tcp) ;; rpc) ;; (import (prefix rpc rpc:)) (use sqlite3 srfi-1 posix regex regex-case srfi-69 csv-xml s11n md5 message-digest base64) (import (prefix sqlite3 sqlite3:)) (import (prefix base64 base64:)) ;; Note, try to remove this dependency (use zmq) (declare (unit db)) (declare (uses common)) (declare (uses keys)) (declare (uses ods)) (declare (uses fs-transport)) (include "common_records.scm") (include "db_records.scm") (include "key_records.scm") (include "run_records.scm") ;; timestamp type (val1 val2 ...) |
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1102 1103 1104 1105 1106 1107 1108 1109 | ;; (define (db:updater) ;; (debug:print-info 4 "Starting cache processing") ;; (let loop () ;; (thread-sleep! 10) ;; move save time around to minimize regular collisions? ;; (db:write-cached-data) ;; (loop))) (define (db:obj->string obj) | > > > > | | | | > > > > > | | | | | > > > > > > > > | < | < | > > | | | < | | < | | | | < < | > > > > > > > > | > > > | > > > | > > > > > > > > > > > | | | | | | < > | | | | | | < < | | | | | | | | | 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 | ;; (define (db:updater) ;; (debug:print-info 4 "Starting cache processing") ;; (let loop () ;; (thread-sleep! 10) ;; move save time around to minimize regular collisions? ;; (db:write-cached-data) ;; (loop))) ;; NOTE: Can remove the regex and base64 encoding for zmq (define (db:obj->string obj) (case *transport-type* ((fs) obj) ((http) (string-substitute (regexp "=") "_" (base64:base64-encode (with-output-to-string (lambda ()(serialize obj)))) #t)) ((zmq)(with-output-to-string (lambda ()(serialize obj)))) (else obj))) (define (db:string->obj msg) (case *transport-type* ((fs) msg) ((http) (with-input-from-string (base64:base64-decode (string-substitute (regexp "_") "=" msg #t)) (lambda ()(deserialize)))) ((zmq)(with-input-from-string msg (lambda ()(deserialize)))) (else msg))) (define (cdb:use-non-blocking-mode proc) (set! *client-non-blocking-mode* #t) (let ((res (proc))) (set! *client-non-blocking-mode* #f) res)) ;; params = 'target cached remparams ;; ;; make-vector-record cdb packet client-sig qtype immediate query-sig params qtime ;; ;; cdb:client-call is the unified interface to all the transports. It dispatches the ;; query to a server routine (e.g. server:client-send-recieve) that ;; transports the data to the server where it is passed to db:process-queue-item ;; which either returns the data to the calling server routine or ;; directly calls the returning procedure (e.g. zmq). ;; (define (cdb:client-call serverdat qtype immediate numretries . params) (debug:print-info 11 "cdb:client-call serverdat=" serverdat ", qtype=" qtype ", immediate=" immediate ", numretries=" numretries ", params=" params) (case *transport-type* ((fs) (let ((packet (vector "na" qtype immediate "na" params 0))) (fs:process-queue-item packet))) ((http) (let* ((client-sig (server:get-client-signature)) (query-sig (message-digest-string (md5-primitive) (conc qtype immediate params))) (zdat (db:obj->string (vector client-sig qtype immediate query-sig params (current-seconds))))) ;; (with-output-to-string (lambda ()(serialize params)))) (debug:print-info 11 "zdat=" zdat) (let* ((res #f) (rawdat (server:client-send-receive serverdat zdat)) (tmp #f)) (debug:print-info 11 "Sent " zdat ", received " rawdat) (set! tmp (db:string->obj rawdat)) (vector-ref tmp 2)))) ((zmq) (handle-exceptions exn (begin (thread-sleep! 5) (if (> numretries 0)(apply cdb:client-call zmq-sockets qtype immediate (- numretries 1) params))) (let* ((push-socket (vector-ref zmq-sockets 0)) (sub-socket (vector-ref zmq-sockets 1)) (client-sig (server:get-client-signature)) (query-sig (message-digest-string (md5-primitive) (conc qtype immediate params))) (zdat (db:obj->string (vector client-sig qtype immediate query-sig params (current-seconds)))) ;; (with-output-to-string (lambda ()(serialize params)))) (res #f) (send-receive (lambda () (debug:print-info 11 "sending message") (send-message push-socket zdat) (debug:print-info 11 "message sent") (let loop () ;; get the sender info ;; this should match (server:get-client-signature) ;; we will need to process "all" messages here some day (receive-message* sub-socket) ;; now get the actual message (let ((myres (db:string->obj (receive-message* sub-socket)))) (if (equal? query-sig (vector-ref myres 1)) (set! res (vector-ref myres 2)) (loop)))))) (timeout (lambda () (let loop ((n numretries)) (thread-sleep! 15) (if (not res) (if (> numretries 0) (begin (debug:print 2 "WARNING: no reply to query " params ", trying resend") (debug:print-info 11 "re-sending message") (send-message push-socket zdat) (debug:print-info 11 "message re-sent") (loop (- n 1))) ;; (apply cdb:client-call zmq-sockets qtype immediate (- numretries 1) params)) (begin (debug:print 0 "ERROR: cdb:client-call timed out " params ", exiting.") (exit 5)))))))) (debug:print-info 11 "Starting threads") (let ((th1 (make-thread send-receive "send receive")) (th2 (make-thread timeout "timeout"))) (thread-start! th1) (thread-start! th2) (thread-join! th1) (debug:print-info 11 "cdb:client-call returning res=" res) res)))))) (define (cdb:set-verbosity serverdat val) (cdb:client-call serverdat 'set-verbosity #f *default-numtries* val)) (define (cdb:login serverdat keyval signature) (cdb:client-call serverdat 'login #t *default-numtries* keyval megatest-version signature)) |
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Added fs-transport.scm version [d187681c70].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | ;; Copyright 2006-2012, Matthew Welland. ;; ;; This program is made available under the GNU GPL version 2.0 or ;; greater. See the accompanying file COPYING for details. ;; ;; This program is distributed WITHOUT ANY WARRANTY; without even the ;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. (require-extension (srfi 18) extras tcp s11n) (use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest) (import (prefix sqlite3 sqlite3:)) (use spiffy uri-common intarweb http-client spiffy-request-vars) (tcp-buffer-size 2048) (declare (unit fs-transport)) (declare (uses common)) (declare (uses db)) (declare (uses tests)) (declare (uses tasks)) ;; tasks are where stuff is maintained about what is running. (include "common_records.scm") (include "db_records.scm") ;;====================================================================== ;; F S T R A N S P O R T S E R V E R ;;====================================================================== ;; There is no "server" per se but a convience routine to make it non ;; necessary to be reopening the db over and over again. ;; (define (fs:process-queue-item packet) (if (not *megatest-db*) ;; we will require that (setup-for-run) has already been called (set! *megatest-db* (open-db))) (debug:print-info 11 "fs:process-queue-item called with packet=" packet) (db:process-queue-item *megatest-db* packet)) |
Added http-transport.scm version [12f5deda72].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 | ;; Copyright 2006-2012, Matthew Welland. ;; ;; This program is made available under the GNU GPL version 2.0 or ;; greater. See the accompanying file COPYING for details. ;; ;; This program is distributed WITHOUT ANY WARRANTY; without even the ;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. (require-extension (srfi 18) extras tcp s11n) (use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest) (import (prefix sqlite3 sqlite3:)) (use spiffy uri-common intarweb http-client spiffy-request-vars) (tcp-buffer-size 2048) (declare (unit server)) (declare (uses common)) (declare (uses db)) (declare (uses tests)) (declare (uses tasks)) ;; tasks are where stuff is maintained about what is running. (include "common_records.scm") (include "db_records.scm") (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)) ;;====================================================================== ;; S E R V E R ;;====================================================================== ;; Call this to start the actual server ;; (define *db:process-queue-mutex* (make-mutex)) (define (server:run hostn) (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) ;; #f ;; (get-host-name) ;; hostn)) (db #f) ;; (open-db)) ;; we don't want the server to be opening and closing the db unnecesarily (hostname (get-host-name)) (ipaddrstr (let ((ipstr (if (string=? "-" hostn) (string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".") #f))) (if ipstr ipstr hostn))) ;; hostname))) (start-port (if (args:get-arg "-port") (string->number (args:get-arg "-port")) (+ 5000 (random 1001)))) (link-tree-path (config-lookup *configdat* "setup" "linktree"))) (set! *cache-on* #t) (root-path (if link-tree-path link-tree-path (current-directory))) ;; WARNING: SECURITY HOLE. FIX ASAP! ;; Setup the web server and a /ctrl interface ;; (vhost-map `(((* any) . ,(lambda (continue) ;; open the db on the first call (if (not db)(set! db (open-db))) (let* (($ (request-vars source: 'both)) (dat ($ 'dat)) (res #f)) (cond ((equal? (uri-path (request-uri (current-request))) '(/ "hey")) (send-response body: "hey there!\n" headers: '((content-type text/plain)))) ;; This is the /ctrl path where data is handed to the server and ;; responses ((equal? (uri-path (request-uri (current-request))) '(/ "ctrl")) (let* ((packet (db:string->obj dat)) (qtype (cdb:packet-get-qtype packet))) (debug:print-info 12 "server=> received packet=" packet) (if (not (member qtype '(sync ping))) (begin (mutex-lock! *heartbeat-mutex*) (set! *last-db-access* (current-seconds)) (mutex-unlock! *heartbeat-mutex*))) ;; (mutex-lock! *db:process-queue-mutex*) ;; trying a mutex ;; (set! res (open-run-close db:process-queue-item open-db packet)) (set! res (db:process-queue-item db packet)) ;; (mutex-unlock! *db:process-queue-mutex*) (debug:print-info 11 "Return value from db:process-queue-item is " res) (send-response body: (conc "<head>ctrl data</head>\n<body>" res "</body>") headers: '((content-type text/plain))))) (else (continue)))))))) (server:try-start-server ipaddrstr start-port) ;; lite3:finalize! db))) )) ;; (define (server:main-loop) ;; (print "INFO: Exectuing main server loop") ;; (access-log "megatest-http.log") ;; (server-bind-address #f) ;; (define-page (main-page-path) ;; (lambda () ;; (let ((dat ($ "dat"))) ;; ;; (with-request-variables (dat) ;; (debug:print-info 12 "Got dat=" dat) ;; (let* ((packet (db:string->obj dat)) ;; (qtype (cdb:packet-get-qtype packet))) ;; (debug:print-info 12 "server=> received packet=" packet) ;; (if (not (member qtype '(sync ping))) ;; (begin ;; (mutex-lock! *heartbeat-mutex*) ;; (set! *last-db-access* (current-seconds)) ;; (mutex-unlock! *heartbeat-mutex*))) ;; (let ((res (open-run-close db:process-queue-item open-db packet))) ;; (debug:print-info 11 "Return value from db:process-queue-item is " res) ;; res)))))) ;;; (use spiffy uri-common intarweb) ;;; ;;; (root-path "/var/www") ;;; ;;; (vhost-map `(((* any) . ,(lambda (continue) ;;; (if (equal? (uri-path (request-uri (current-request))) ;;; '(/ "hey")) ;;; (send-response body: "hey there!\n" ;;; headers: '((content-type text/plain))) ;;; (continue)))))) ;;; ;;; (start-server port: 12345) ;; This is recursively run by server:run until sucessful ;; (define (server:try-start-server ipaddrstr portnum) (handle-exceptions exn (begin (print-error-message exn) (if (< portnum 9000) (begin (print "WARNING: failed to start on portnum: " portnum ", trying next port") (thread-sleep! 0.1) (open-run-close tasks:remove-server-records tasks:open-db) (server:try-start-server ipaddrstr (+ portnum 1))) (print "ERROR: Tried and tried but could not start the server"))) (set! *runremote* (list ipaddrstr portnum)) (open-run-close tasks:remove-server-records tasks:open-db) (open-run-close tasks:server-register tasks:open-db (current-process-id) ipaddrstr portnum 0 'live) (print "INFO: Trying to start server on " ipaddrstr ":" portnum) ;; This starts the spiffy server (start-server port: portnum) (print "INFO: server has been stopped"))) (define (server:mk-signature) (message-digest-string (md5-primitive) (with-output-to-string (lambda () (write (list (current-directory) (argv))))))) ;;====================================================================== ;; S E R V E R U T I L I T I E S ;;====================================================================== ;; When using zmq this would send the message back (two step process) ;; with spiffy or rpc this simply returns the return data to be returned ;; (define (server:reply return-addr query-sig success/fail result) (debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result) ;; (send-message pubsock target send-more: #t) ;; (send-message pubsock (db:obj->string (vector success/fail query-sig result))) ;;====================================================================== ;; C L I E N T S ;;====================================================================== (define (server:get-client-signature) (if *my-client-signature* *my-client-signature* (let ((sig (server:mk-signature))) (set! *my-client-signature* sig) *my-client-signature*))) ;; <html> ;; <head></head> ;; <body>1 Hello, world! Goodbye Dolly</body></html> ;; Send msg to serverdat and receive result (define (server:client-send-receive serverdat msg) (let* ((url (server:make-server-url serverdat)) (fullurl (conc url "/ctrl")) ;; (conc url "/?dat=" msg))) (numretries 0)) (handle-exceptions exn (if (< numretries 200) (server:client-send-receive serverdat msg)) (begin (debug:print-info 11 "fullurl=" fullurl "\n") ;; set up the http-client here (max-retry-attempts 100) (retry-request? (lambda (request) (thread-sleep! (/ (if (> numretries 100) 100 numretries) 10)) (set! numretries (+ numretries 1)) #t)) ;; send the data and get the response ;; extract the needed info from the http data and ;; process and return it. (let* ((res (with-input-from-request fullurl ;; #f ;; msg (list (cons 'dat msg)) read-string))) (debug:print-info 11 "got res=" res) (let ((match (string-search (regexp "<body>(.*)<.body>") res))) (debug:print-info 11 "match=" match) (let ((final (cadr match))) (debug:print-info 11 "final=" final) final))))))) (define (server:client-login serverdat) (max-retry-attempts 100) (cdb:login serverdat *toppath* (server:get-client-signature))) ;; Not currently used! But, I think it *should* be used!!! (define (server:client-logout serverdat) (let ((ok (and (socket? serverdat) (cdb:logout serverdat *toppath* (server:get-client-signature))))) ;; (close-socket serverdat) ok)) (define (server:client-connect iface port) (let* ((login-res #f) (serverdat (list iface port))) (set! login-res (server:client-login serverdat)) (if (and (not (null? login-res)) (car login-res)) (begin (debug:print-info 2 "Logged in and connected to " iface ":" port) (set! *runremote* serverdat) serverdat) (begin (debug:print-info 2 "Failed to login or connect to " iface ":" port) (set! *runremote* #f) #f)))) ;; Do all the connection work, start a server if not already running (define (server:client-setup #!key (numtries 50)) (if (not *toppath*) (if (not (setup-for-run)) (begin (debug:print 0 "ERROR: failed to find megatest.config, exiting") (exit)))) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if hostinfo (let ((host (list-ref hostinfo 0)) (iface (list-ref hostinfo 1)) (port (list-ref hostinfo 2)) (pid (list-ref hostinfo 3))) (debug:print-info 2 "Setting up to connect to " hostinfo) (server:client-connect iface port)) ;; ) (if (> numtries 0) (let ((exe (car (argv))) (pid #f)) (debug:print-info 0 "No server available, attempting to start one...") (set! pid (process-run exe (list "-server" "-" "-debug" (if (list? *verbosity*) (string-intersperse *verbosity* ",") (conc *verbosity*))))) ;; (set! pid (process-fork (lambda () ;; (current-input-port (open-input-file "/dev/null")) ;; (current-output-port (open-output-file "/dev/null")) ;; (current-error-port (open-output-file "/dev/null")) ;; (server:launch)))) (let loop ((count 0)) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if (not hostinfo) (begin (debug:print-info 0 "Waiting for server pid=" pid " to start") (sleep 2) ;; give server time to start (if (< count 5) (loop (+ count 1))))))) ;; we are starting a server, do not try again! That can lead to ;; recursively starting many processes!!! (server:client-setup numtries: 0)) (debug:print-info 1 "Too many attempts, giving up"))))) ;; run server:keep-running in a parallel thread to monitor that the db is being ;; used and to shutdown after sometime if it is not. ;; (define (server:keep-running) ;; 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 ((sdat #f)) (mutex-lock! *heartbeat-mutex*) (set! sdat *runremote*) (mutex-unlock! *heartbeat-mutex*) (if sdat sdat (begin (sleep 4) (loop)))))) (iface (car server-info)) (port (cadr server-info)) (last-access 0) (tdb (tasks:open-db)) (spid (tasks:server-get-server-id tdb #f iface port #f))) (print "Keep-running got server pid " spid ", using iface " iface " and port " port) (let loop ((count 0)) (thread-sleep! 4) ;; no need to do this very often ;; NB// sync currently does NOT return queue-length (let () ;; (queue-len (cdb:client-call server-info 'sync #t 1))) ;; (print "Server running, count is " count) (if (< count 1) ;; 3x3 = 9 secs aprox (loop (+ count 1))) ;; NOTE: Get rid of this mechanism! It really is not needed... (tasks:server-update-heartbeat tdb spid) ;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access (mutex-lock! *heartbeat-mutex*) (set! last-access *last-db-access*) (mutex-unlock! *heartbeat-mutex*) (if (> (+ last-access ;; (* 50 60 60) ;; 48 hrs ;; 60 ;; one minute ;; (* 60 60) ;; one hour (* 45 60) ;; 45 minutes, until the db deletion bug is fixed. ) (current-seconds)) (begin (debug:print-info 2 "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) (tasks:server-deregister-self tdb (get-host-name)) (thread-sleep! 1) (debug:print-info 0 "Max cached queries was " *max-cache-size*) (debug:print-info 0 "Server shutdown complete. Exiting") (exit))))))) ;; all routes though here end in exit ... (define (server:launch) (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") (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (debug:print 11 "server:launch hostinfo=" hostinfo) (if hostinfo (debug:print-info 2 "NOT starting new server, one is already running on " (car hostinfo) ":" (cadr hostinfo)) (if *toppath* (let* ((th2 (make-thread (lambda () (server:run (if (args:get-arg "-server") (args:get-arg "-server") "-"))) "Server run")) (th3 (make-thread (lambda ()(server:keep-running)) "Keep running")) ) (thread-start! th2) (thread-start! th3) (set! *didsomething* #t) (thread-join! th2) ) (debug:print 0 "ERROR: Failed to setup for megatest"))) (exit))) (define (server:client-signal-handler signum) (handle-exceptions exn (debug:print " ... exiting ...") (let ((th1 (make-thread (lambda () "") ;; do nothing for now (was flush out last call if applicable) "eat response")) (th2 (make-thread (lambda () (debug:print 0 "ERROR: Received ^C, attempting clean exit. Please be patient and wait a few seconds before hitting ^C again.") (thread-sleep! 1) ;; give the flush one second to do it's stuff (debug:print 0 " Done.") (exit 4)) "exit on ^C timer"))) (thread-start! th2) (thread-start! th1) (thread-join! th2)))) (define (server:client-launch) (set-signal-handler! signal/int server:client-signal-handler) (if (server:client-setup) (debug:print-info 2 "connected as client") (begin (debug:print 0 "ERROR: Failed to connect as client") (exit)))) |
Added rpc-transport.scm version [12f5deda72].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 | ;; Copyright 2006-2012, Matthew Welland. ;; ;; This program is made available under the GNU GPL version 2.0 or ;; greater. See the accompanying file COPYING for details. ;; ;; This program is distributed WITHOUT ANY WARRANTY; without even the ;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. (require-extension (srfi 18) extras tcp s11n) (use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest) (import (prefix sqlite3 sqlite3:)) (use spiffy uri-common intarweb http-client spiffy-request-vars) (tcp-buffer-size 2048) (declare (unit server)) (declare (uses common)) (declare (uses db)) (declare (uses tests)) (declare (uses tasks)) ;; tasks are where stuff is maintained about what is running. (include "common_records.scm") (include "db_records.scm") (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)) ;;====================================================================== ;; S E R V E R ;;====================================================================== ;; Call this to start the actual server ;; (define *db:process-queue-mutex* (make-mutex)) (define (server:run hostn) (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) ;; #f ;; (get-host-name) ;; hostn)) (db #f) ;; (open-db)) ;; we don't want the server to be opening and closing the db unnecesarily (hostname (get-host-name)) (ipaddrstr (let ((ipstr (if (string=? "-" hostn) (string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".") #f))) (if ipstr ipstr hostn))) ;; hostname))) (start-port (if (args:get-arg "-port") (string->number (args:get-arg "-port")) (+ 5000 (random 1001)))) (link-tree-path (config-lookup *configdat* "setup" "linktree"))) (set! *cache-on* #t) (root-path (if link-tree-path link-tree-path (current-directory))) ;; WARNING: SECURITY HOLE. FIX ASAP! ;; Setup the web server and a /ctrl interface ;; (vhost-map `(((* any) . ,(lambda (continue) ;; open the db on the first call (if (not db)(set! db (open-db))) (let* (($ (request-vars source: 'both)) (dat ($ 'dat)) (res #f)) (cond ((equal? (uri-path (request-uri (current-request))) '(/ "hey")) (send-response body: "hey there!\n" headers: '((content-type text/plain)))) ;; This is the /ctrl path where data is handed to the server and ;; responses ((equal? (uri-path (request-uri (current-request))) '(/ "ctrl")) (let* ((packet (db:string->obj dat)) (qtype (cdb:packet-get-qtype packet))) (debug:print-info 12 "server=> received packet=" packet) (if (not (member qtype '(sync ping))) (begin (mutex-lock! *heartbeat-mutex*) (set! *last-db-access* (current-seconds)) (mutex-unlock! *heartbeat-mutex*))) ;; (mutex-lock! *db:process-queue-mutex*) ;; trying a mutex ;; (set! res (open-run-close db:process-queue-item open-db packet)) (set! res (db:process-queue-item db packet)) ;; (mutex-unlock! *db:process-queue-mutex*) (debug:print-info 11 "Return value from db:process-queue-item is " res) (send-response body: (conc "<head>ctrl data</head>\n<body>" res "</body>") headers: '((content-type text/plain))))) (else (continue)))))))) (server:try-start-server ipaddrstr start-port) ;; lite3:finalize! db))) )) ;; (define (server:main-loop) ;; (print "INFO: Exectuing main server loop") ;; (access-log "megatest-http.log") ;; (server-bind-address #f) ;; (define-page (main-page-path) ;; (lambda () ;; (let ((dat ($ "dat"))) ;; ;; (with-request-variables (dat) ;; (debug:print-info 12 "Got dat=" dat) ;; (let* ((packet (db:string->obj dat)) ;; (qtype (cdb:packet-get-qtype packet))) ;; (debug:print-info 12 "server=> received packet=" packet) ;; (if (not (member qtype '(sync ping))) ;; (begin ;; (mutex-lock! *heartbeat-mutex*) ;; (set! *last-db-access* (current-seconds)) ;; (mutex-unlock! *heartbeat-mutex*))) ;; (let ((res (open-run-close db:process-queue-item open-db packet))) ;; (debug:print-info 11 "Return value from db:process-queue-item is " res) ;; res)))))) ;;; (use spiffy uri-common intarweb) ;;; ;;; (root-path "/var/www") ;;; ;;; (vhost-map `(((* any) . ,(lambda (continue) ;;; (if (equal? (uri-path (request-uri (current-request))) ;;; '(/ "hey")) ;;; (send-response body: "hey there!\n" ;;; headers: '((content-type text/plain))) ;;; (continue)))))) ;;; ;;; (start-server port: 12345) ;; This is recursively run by server:run until sucessful ;; (define (server:try-start-server ipaddrstr portnum) (handle-exceptions exn (begin (print-error-message exn) (if (< portnum 9000) (begin (print "WARNING: failed to start on portnum: " portnum ", trying next port") (thread-sleep! 0.1) (open-run-close tasks:remove-server-records tasks:open-db) (server:try-start-server ipaddrstr (+ portnum 1))) (print "ERROR: Tried and tried but could not start the server"))) (set! *runremote* (list ipaddrstr portnum)) (open-run-close tasks:remove-server-records tasks:open-db) (open-run-close tasks:server-register tasks:open-db (current-process-id) ipaddrstr portnum 0 'live) (print "INFO: Trying to start server on " ipaddrstr ":" portnum) ;; This starts the spiffy server (start-server port: portnum) (print "INFO: server has been stopped"))) (define (server:mk-signature) (message-digest-string (md5-primitive) (with-output-to-string (lambda () (write (list (current-directory) (argv))))))) ;;====================================================================== ;; S E R V E R U T I L I T I E S ;;====================================================================== ;; When using zmq this would send the message back (two step process) ;; with spiffy or rpc this simply returns the return data to be returned ;; (define (server:reply return-addr query-sig success/fail result) (debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result) ;; (send-message pubsock target send-more: #t) ;; (send-message pubsock (db:obj->string (vector success/fail query-sig result))) ;;====================================================================== ;; C L I E N T S ;;====================================================================== (define (server:get-client-signature) (if *my-client-signature* *my-client-signature* (let ((sig (server:mk-signature))) (set! *my-client-signature* sig) *my-client-signature*))) ;; <html> ;; <head></head> ;; <body>1 Hello, world! Goodbye Dolly</body></html> ;; Send msg to serverdat and receive result (define (server:client-send-receive serverdat msg) (let* ((url (server:make-server-url serverdat)) (fullurl (conc url "/ctrl")) ;; (conc url "/?dat=" msg))) (numretries 0)) (handle-exceptions exn (if (< numretries 200) (server:client-send-receive serverdat msg)) (begin (debug:print-info 11 "fullurl=" fullurl "\n") ;; set up the http-client here (max-retry-attempts 100) (retry-request? (lambda (request) (thread-sleep! (/ (if (> numretries 100) 100 numretries) 10)) (set! numretries (+ numretries 1)) #t)) ;; send the data and get the response ;; extract the needed info from the http data and ;; process and return it. (let* ((res (with-input-from-request fullurl ;; #f ;; msg (list (cons 'dat msg)) read-string))) (debug:print-info 11 "got res=" res) (let ((match (string-search (regexp "<body>(.*)<.body>") res))) (debug:print-info 11 "match=" match) (let ((final (cadr match))) (debug:print-info 11 "final=" final) final))))))) (define (server:client-login serverdat) (max-retry-attempts 100) (cdb:login serverdat *toppath* (server:get-client-signature))) ;; Not currently used! But, I think it *should* be used!!! (define (server:client-logout serverdat) (let ((ok (and (socket? serverdat) (cdb:logout serverdat *toppath* (server:get-client-signature))))) ;; (close-socket serverdat) ok)) (define (server:client-connect iface port) (let* ((login-res #f) (serverdat (list iface port))) (set! login-res (server:client-login serverdat)) (if (and (not (null? login-res)) (car login-res)) (begin (debug:print-info 2 "Logged in and connected to " iface ":" port) (set! *runremote* serverdat) serverdat) (begin (debug:print-info 2 "Failed to login or connect to " iface ":" port) (set! *runremote* #f) #f)))) ;; Do all the connection work, start a server if not already running (define (server:client-setup #!key (numtries 50)) (if (not *toppath*) (if (not (setup-for-run)) (begin (debug:print 0 "ERROR: failed to find megatest.config, exiting") (exit)))) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if hostinfo (let ((host (list-ref hostinfo 0)) (iface (list-ref hostinfo 1)) (port (list-ref hostinfo 2)) (pid (list-ref hostinfo 3))) (debug:print-info 2 "Setting up to connect to " hostinfo) (server:client-connect iface port)) ;; ) (if (> numtries 0) (let ((exe (car (argv))) (pid #f)) (debug:print-info 0 "No server available, attempting to start one...") (set! pid (process-run exe (list "-server" "-" "-debug" (if (list? *verbosity*) (string-intersperse *verbosity* ",") (conc *verbosity*))))) ;; (set! pid (process-fork (lambda () ;; (current-input-port (open-input-file "/dev/null")) ;; (current-output-port (open-output-file "/dev/null")) ;; (current-error-port (open-output-file "/dev/null")) ;; (server:launch)))) (let loop ((count 0)) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if (not hostinfo) (begin (debug:print-info 0 "Waiting for server pid=" pid " to start") (sleep 2) ;; give server time to start (if (< count 5) (loop (+ count 1))))))) ;; we are starting a server, do not try again! That can lead to ;; recursively starting many processes!!! (server:client-setup numtries: 0)) (debug:print-info 1 "Too many attempts, giving up"))))) ;; run server:keep-running in a parallel thread to monitor that the db is being ;; used and to shutdown after sometime if it is not. ;; (define (server:keep-running) ;; 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 ((sdat #f)) (mutex-lock! *heartbeat-mutex*) (set! sdat *runremote*) (mutex-unlock! *heartbeat-mutex*) (if sdat sdat (begin (sleep 4) (loop)))))) (iface (car server-info)) (port (cadr server-info)) (last-access 0) (tdb (tasks:open-db)) (spid (tasks:server-get-server-id tdb #f iface port #f))) (print "Keep-running got server pid " spid ", using iface " iface " and port " port) (let loop ((count 0)) (thread-sleep! 4) ;; no need to do this very often ;; NB// sync currently does NOT return queue-length (let () ;; (queue-len (cdb:client-call server-info 'sync #t 1))) ;; (print "Server running, count is " count) (if (< count 1) ;; 3x3 = 9 secs aprox (loop (+ count 1))) ;; NOTE: Get rid of this mechanism! It really is not needed... (tasks:server-update-heartbeat tdb spid) ;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access (mutex-lock! *heartbeat-mutex*) (set! last-access *last-db-access*) (mutex-unlock! *heartbeat-mutex*) (if (> (+ last-access ;; (* 50 60 60) ;; 48 hrs ;; 60 ;; one minute ;; (* 60 60) ;; one hour (* 45 60) ;; 45 minutes, until the db deletion bug is fixed. ) (current-seconds)) (begin (debug:print-info 2 "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) (tasks:server-deregister-self tdb (get-host-name)) (thread-sleep! 1) (debug:print-info 0 "Max cached queries was " *max-cache-size*) (debug:print-info 0 "Server shutdown complete. Exiting") (exit))))))) ;; all routes though here end in exit ... (define (server:launch) (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") (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (debug:print 11 "server:launch hostinfo=" hostinfo) (if hostinfo (debug:print-info 2 "NOT starting new server, one is already running on " (car hostinfo) ":" (cadr hostinfo)) (if *toppath* (let* ((th2 (make-thread (lambda () (server:run (if (args:get-arg "-server") (args:get-arg "-server") "-"))) "Server run")) (th3 (make-thread (lambda ()(server:keep-running)) "Keep running")) ) (thread-start! th2) (thread-start! th3) (set! *didsomething* #t) (thread-join! th2) ) (debug:print 0 "ERROR: Failed to setup for megatest"))) (exit))) (define (server:client-signal-handler signum) (handle-exceptions exn (debug:print " ... exiting ...") (let ((th1 (make-thread (lambda () "") ;; do nothing for now (was flush out last call if applicable) "eat response")) (th2 (make-thread (lambda () (debug:print 0 "ERROR: Received ^C, attempting clean exit. Please be patient and wait a few seconds before hitting ^C again.") (thread-sleep! 1) ;; give the flush one second to do it's stuff (debug:print 0 " Done.") (exit 4)) "exit on ^C timer"))) (thread-start! th2) (thread-start! th1) (thread-join! th2)))) (define (server:client-launch) (set-signal-handler! signal/int server:client-signal-handler) (if (server:client-setup) (debug:print-info 2 "connected as client") (begin (debug:print 0 "ERROR: Failed to connect as client") (exit)))) |
Modified server.scm from [12f5deda72] to [7bea8dbf29].
︙ | ︙ | |||
183 184 185 186 187 188 189 | ;; When using zmq this would send the message back (two step process) ;; with spiffy or rpc this simply returns the return data to be returned ;; (define (server:reply return-addr query-sig success/fail result) (debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result) ;; (send-message pubsock target send-more: #t) ;; (send-message pubsock | > > | | 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | ;; When using zmq this would send the message back (two step process) ;; with spiffy or rpc this simply returns the return data to be returned ;; (define (server:reply return-addr query-sig success/fail result) (debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result) ;; (send-message pubsock target send-more: #t) ;; (send-message pubsock (case *transport-type* ((fs) result) ((http)(db:obj->string (vector success/fail query-sig result))))) ;;====================================================================== ;; C L I E N T S ;;====================================================================== (define (server:get-client-signature) (if *my-client-signature* *my-client-signature* |
︙ | ︙ | |||
256 257 258 259 260 261 262 | (set! *runremote* serverdat) serverdat) (begin (debug:print-info 2 "Failed to login or connect to " iface ":" port) (set! *runremote* #f) #f)))) | | > > > > > | | | | | | | | > > > > | | | | | | | | | | | | | | | | | | | | | | | | | 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 | (set! *runremote* serverdat) serverdat) (begin (debug:print-info 2 "Failed to login or connect to " iface ":" port) (set! *runremote* #f) #f)))) ;; Do all the connection work, look up the transport type and set up the ;; connection if required. ;; (define (server:client-setup #!key (numtries 50)) (if (not *toppath*) (if (not (setup-for-run)) (begin (debug:print 0 "ERROR: failed to find megatest.config, exiting") (exit)))) (case *transport-type* ((fs)(if (not *megatest-db*)(set! *megatest-db* (open-db)))) ((http) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if hostinfo (let ((host (list-ref hostinfo 0)) (iface (list-ref hostinfo 1)) (port (list-ref hostinfo 2)) (pid (list-ref hostinfo 3))) (debug:print-info 2 "Setting up to connect to " hostinfo) (server:client-connect iface port)) ;; ) (begin (debug:print 0 "ERROR: No server found, exiting") (exit))))))) ;; (if (> numtries 0) ;; (let ((exe (car (argv))) ;; (pid #f)) ;; (debug:print-info 0 "No server available, attempting to start one...") ;; (set! pid (process-run exe (list "-server" "-" "-debug" (if (list? *verbosity*) ;; (string-intersperse *verbosity* ",") ;; (conc *verbosity*))))) ;; ;; (set! pid (process-fork (lambda () ;; ;; (current-input-port (open-input-file "/dev/null")) ;; ;; (current-output-port (open-output-file "/dev/null")) ;; ;; (current-error-port (open-output-file "/dev/null")) ;; ;; (server:launch)))) ;; (let loop ((count 0)) ;; (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) ;; (if (not hostinfo) ;; (begin ;; (debug:print-info 0 "Waiting for server pid=" pid " to start") ;; (sleep 2) ;; give server time to start ;; (if (< count 5) ;; (loop (+ count 1))))))) ;; ;; we are starting a server, do not try again! That can lead to ;; ;; recursively starting many processes!!! ;; (server:client-setup numtries: 0)) ;; (debug:print-info 1 "Too many attempts, giving up"))))) ;; run server:keep-running in a parallel thread to monitor that the db is being ;; used and to shutdown after sometime if it is not. ;; (define (server:keep-running) ;; if none running or if > 20 seconds since ;; server last used then start shutdown |
︙ | ︙ |
Modified tasks.scm from [7e2c4cdfd8] to [2ff72ab50d].
︙ | ︙ | |||
59 60 61 62 63 64 65 66 67 68 69 70 71 72 | username TEXT, CONSTRAINT monitors_constraint UNIQUE (pid,hostname));") (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS servers (id INTEGER PRIMARY KEY, pid INTEGER, interface TEXT, hostname TEXT, port INTEGER, start_time TIMESTAMP, priority INTEGER, state TEXT, mt_version TEXT, heartbeat TIMESTAMP, CONSTRAINT servers_constraint UNIQUE (pid,hostname,port));") (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS clients (id INTEGER PRIMARY KEY, | > | 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | username TEXT, CONSTRAINT monitors_constraint UNIQUE (pid,hostname));") (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS servers (id INTEGER PRIMARY KEY, pid INTEGER, interface TEXT, hostname TEXT, port INTEGER, pubport INTEGER, start_time TIMESTAMP, priority INTEGER, state TEXT, mt_version TEXT, heartbeat TIMESTAMP, CONSTRAINT servers_constraint UNIQUE (pid,hostname,port));") (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS clients (id INTEGER PRIMARY KEY, |
︙ | ︙ | |||
82 83 84 85 86 87 88 | mdb)) ;;====================================================================== ;; Server and client management ;;====================================================================== ;; state: 'live, 'shutting-down, 'dead | | | | > | 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | mdb)) ;;====================================================================== ;; Server and client management ;;====================================================================== ;; state: 'live, 'shutting-down, 'dead (define (tasks:server-register mdb pid interface port priority state #!key (pubport -1)) (debug:print-info 11 "tasks:server-register " pid " " interface " " port " " priority " " state) (sqlite3:execute mdb "INSERT OR REPLACE INTO servers (pid,hostname,port,pubport,start_time,priority,state,mt_version,heartbeat,interface) VALUES(?, ?, ?, strftime('%s','now'), ?, ?, ?, strftime('%s','now'),?);" pid (get-host-name) port pubport priority (conc state) megatest-version interface) (list (tasks:server-get-server-id mdb (get-host-name) interface port pid) interface port pubport )) ;; NB// two servers with same pid on different hosts will be removed from the list if pid: is used! (define (tasks:server-deregister mdb hostname #!key (port #f)(pid #f)(action 'markdead)) (debug:print-info 11 "server-deregister " hostname ", port " port ", pid " pid) (if pid (case action |
︙ | ︙ | |||
251 252 253 254 255 256 257 | (debug:print 0 "WARNING: Can't kill frozen server on remote host " hostname)))))) (define (tasks:get-all-servers mdb) (let ((res '())) (sqlite3:for-each-row | | | | | 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | (debug:print 0 "WARNING: Can't kill frozen server on remote host " hostname)))))) (define (tasks:get-all-servers mdb) (let ((res '())) (sqlite3:for-each-row (lambda (id pid hostname interface port pubport start-time priority state mt-version last-update) (set! res (cons (vector id pid hostname interface port pubport start-time priority state mt-version last-update) res))) mdb "SELECT id,pid,hostname,interface,port,pubport,start_time,priority,state,mt_version,strftime('%s','now')-heartbeat AS last_update FROM servers ORDER BY start_time DESC;") res)) ;;====================================================================== ;; Tasks and Task monitors ;;====================================================================== |
︙ | ︙ |
Added zmq-transport.scm version [442b5dfce3].
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See the accompanying file COPYING for details. ;; ;; This program is distributed WITHOUT ANY WARRANTY; without even the ;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. (require-extension (srfi 18) extras tcp s11n) (use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest) (import (prefix sqlite3 sqlite3:)) (use zmq) (declare (unit server)) (declare (uses common)) (declare (uses db)) (declare (uses tests)) (declare (uses tasks)) ;; tasks are where stuff is maintained about what is running. (include "common_records.scm") (include "db_records.scm") ;; Transition to pub --> sub with pull <-- push ;; ;; 1. client sends request to server via push to the pull port ;; 2. server puts request in queue or processes immediately as appropriate ;; 3. server puts responses from completed requests into pub port ;; ;; TODO ;; ;; Done Tested ;; [x] [ ] 1. Add columns pullport pubport to servers table ;; [x] [ ] 2. Add rm of monitor.db if older than 11/12/2012 ;; [x] [ ] 3. Add create of pullport and pubport with finding of available ports ;; [x] [ ] 4. Add client compose of request ;; [x] [ ] - name of client: testname/itempath-test_id-hostname ;; [x] [ ] - name of request: callname, params ;; [x] [ ] - request key: f(clientname, callname, params) ;; [x] [ ] 5. Add processing of subscription hits ;; [x] [ ] - done when get key ;; [x] [ ] - return results ;; [x] [ ] 6. Add timeout processing ;; [x] [ ] - after 60 seconds ;; [ ] [ ] i. check server alive, connect to new if necessary ;; [ ] [ ] ii. resend request ;; [ ] [ ] 7. Turn self ping back on (define (server:make-server-url hostport) (if (not hostport) #f (conc "tcp://" (car hostport) ":" (cadr hostport)))) (define *server-loop-heart-beat* (current-seconds)) (define *heartbeat-mutex* (make-mutex)) ;;====================================================================== ;; S E R V E R ;;====================================================================== (define-inline (zmqsock:get-pub dat)(vector-ref dat 0)) (define-inline (zmqsock:get-pull dat)(vector-ref dat 1)) (define-inline (zmqsock:set-pub! dat s)(vector-set! dat s 0)) (define-inline (zmqsock:set-pull! dat s)(vector-set! dat s 0)) (define (server:run hostn) (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* ((zmq-sdat1 #f) (zmq-sdat2 #f) (pull-socket #f) (pub-socket #f) (p1 #f) (p2 #f) (zmq-sockets-dat #f) (iface (if (string=? "-" hostn) "*" ;; (get-host-name) hostn)) (hostname (get-host-name)) (ipaddrstr (let ((ipstr (if (string=? "-" hostn) (string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".") #f))) (if ipstr ipstr hostname))) (last-run 0)) (set! zmq-sockets-dat (server:setup-ports ipaddrstr (if (args:get-arg "-port") (string->number (args:get-arg "-port")) (+ 5000 (random 1001))))) (set! zmq-sdat1 (car zmq-sockets-dat)) (set! pull-socket (cadr zmq-sdat1)) ;; (iface s port) (set! p1 (caddr zmq-sdat1)) (set! zmq-sdat2 (cadr zmq-sockets-dat)) (set! pub-socket (cadr zmq-sdat2)) (set! p2 (caddr zmq-sdat2)) (set! *cache-on* #t) ;; what to do when we quit ;; ;; (on-exit (lambda () ;; (if (and *toppath* *server-info*) ;; (open-run-close tasks:server-deregister-self tasks:open-db (car *server-info*)) ;; (let loop () ;; (let ((queue-len 0)) ;; (thread-sleep! (random 5)) ;; (mutex-lock! *incoming-mutex*) ;; (set! queue-len (length *incoming-data*)) ;; (mutex-unlock! *incoming-mutex*) ;; (if (> queue-len 0) ;; (begin ;; (debug:print-info 0 "Queue not flushed, waiting ...") ;; (loop)))))))) ;; The heavy lifting ;; ;; make-vector-record cdb packet client-sig qtype immediate query-sig params qtime ;; (let loop ((queue-lst '())) (let* ((rawmsg (receive-message* pull-socket)) (packet (db:string->obj rawmsg)) (qtype (cdb:packet-get-qtype packet))) (debug:print-info 12 "server=> received packet=" packet) (if (not (member qtype '(sync ping))) (begin (mutex-lock! *heartbeat-mutex*) (set! *last-db-access* (current-seconds)) (mutex-unlock! *heartbeat-mutex*))) (if #t ;; (cdb:packet-get-immediate packet) ;; process immediately or put in queue (begin (open-run-close db:process-queue #f pub-socket (cons packet queue-lst)) (loop '())) (loop (cons packet queue-lst))))))) ;; run server:keep-running in a parallel thread to monitor that the db is being ;; used and to shutdown after sometime if it is not. ;; (define (server:keep-running) ;; 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 ((sdat #f)) (mutex-lock! *heartbeat-mutex*) (set! sdat *server-info*) (mutex-unlock! *heartbeat-mutex*) (if sdat sdat (begin (sleep 4) (loop)))))) (iface (cadr server-info)) (pullport (caddr server-info)) (pubport (cadddr server-info)) ;; id interface pullport pubport) (zmq-sockets (server:client-connect iface pullport pubport)) (last-access 0)) (let loop ((count 0)) (thread-sleep! 4) ;; no need to do this very often ;; NB// sync currently does NOT return queue-length (let ((queue-len (cdb:client-call zmq-sockets 'sync #t 1))) ;; (print "Server running, count is " count) (if (< count 1) ;; 3x3 = 9 secs aprox (loop (+ count 1))) ;; NOTE: Get rid of this mechanism! It really is not needed... (open-run-close tasks:server-update-heartbeat tasks:open-db (car server-info)) ;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access (mutex-lock! *heartbeat-mutex*) (set! last-access *last-db-access*) (mutex-unlock! *heartbeat-mutex*) (if (> (+ last-access ;; (* 50 60 60) ;; 48 hrs ;; 60 ;; one minute ;; (* 60 60) ;; one hour (* 45 60) ;; 45 minutes, until the db deletion bug is fixed. ) (current-seconds)) (begin (debug:print-info 2 "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) (open-run-close tasks:server-deregister-self tasks:open-db (get-host-name)) (thread-sleep! 1) (debug:print-info 0 "Max cached queries was " *max-cache-size*) (debug:print-info 0 "Server shutdown complete. Exiting") (exit))))))) (define (server:find-free-port-and-open iface s port stype #!key (trynum 50)) (let ((s (if s s (make-socket stype))) (p (if (number? port) port 5555)) (old-handler (current-exception-handler))) (handle-exceptions exn (begin (print-error-message exn) (if (< portnum 9000) (begin (print "WARNING: failed to start on portnum: " portnum ", trying next port") (thread-sleep! 0.1) (open-run-close tasks:remove-server-records tasks:open-db) (server:try-start-server ipaddrstr (+ portnum 1))) (print "ERROR: Tried and tried but could not start the server"))) (set! *runremote* (list ipaddrstr portnum)) (open-run-close tasks:remove-server-records tasks:open-db) (open-run-close tasks:server-register tasks:open-db (current-process-id) ipaddrstr portnum 0 'live) (print "INFO: Trying to start server on " ipaddrstr ":" portnum) ;; This starts the spiffy server (start-server port: portnum) (print "INFO: server has been stopped"))) (define (server:mk-signature) (message-digest-string (md5-primitive) (with-output-to-string (lambda () (write (list (current-directory) (argv))))))) ;;====================================================================== ;; S E R V E R U T I L I T I E S ;;====================================================================== ;; When using zmq this would send the message back (two step process) ;; with spiffy or rpc this simply returns the return data to be returned ;; (define (server:reply return-addr query-sig success/fail result) (debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result) ;; (send-message pubsock target send-more: #t) ;; (send-message pubsock (db:obj->string (vector success/fail query-sig result))) ;;====================================================================== ;; C L I E N T S ;;====================================================================== (define (server:get-client-signature) (if *my-client-signature* *my-client-signature* (let ((sig (server:mk-signature))) (set! *my-client-signature* sig) *my-client-signature*))) ;; (define (server:client-socket-connect iface port #!key (context #f)(type 'req)(subscriptions '())) (debug:print-info 3 "client-connect " iface ":" port ", type=" type ", subscriptions=" subscriptions) (let ((connect-ok #f) (zmq-socket (if context (make-socket type context) (make-socket type))) (conurl (server:make-server-url (list iface port)))) (if (socket? zmq-socket) (begin ;; first apply subscriptions (for-each (lambda (subscription) (debug:print 2 "Subscribing to " subscription) (socket-option-set! zmq-socket 'subscribe subscription)) subscriptions) (connect-socket zmq-socket conurl) zmq-socket) (begin (debug:print 0 "ERROR: Failed to open socket to " conurl) #f)))) (define (server:client-login serverdat) (max-retry-attempts 100) (cdb:login serverdat *toppath* (server:get-client-signature))) ;; Not currently used! But, I think it *should* be used!!! (define (server:client-logout serverdat) (let ((ok (and (socket? serverdat) (cdb:logout serverdat *toppath* (server:get-client-signature))))) ;; (close-socket serverdat) ok)) (define (server:client-connect iface pullport pubport) (let* ((push-socket (server:client-socket-connect iface pullport type: 'push)) (sub-socket (server:client-socket-connect iface pubport type: 'sub subscriptions: (list (server:get-client-signature) "all"))) (zmq-sockets (vector push-socket sub-socket)) (login-res #f)) (set! login-res (server:client-login zmq-sockets)) (if (and (not (null? login-res)) (car login-res)) (begin (debug:print-info 2 "Logged in and connected to " iface ":" pullport "/" pubport ".") (set! *runremote* zmq-sockets) zmq-sockets) (begin (debug:print-info 2 "Failed to login or connect to " conurl) (set! *runremote* #f) #f)))) ;; Do all the connection work, start a server if not already running (define (server:client-setup #!key (numtries 50)) (if (not *toppath*) (if (not (setup-for-run)) (begin (debug:print 0 "ERROR: failed to find megatest.config, exiting") (exit)))) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if hostinfo (let ((host (list-ref hostinfo 0)) (iface (list-ref hostinfo 1)) (port (list-ref hostinfo 2)) (pubport (list-ref hostinfo 3)) (pid (list-ref hostinfo 4))) (debug:print-info 2 "Setting up to connect to " hostinfo) ;; (handle-exceptions ;; exn ;; (begin ;; ;; something went wrong in connecting to the server. In this scenario it is ok ;; ;; to try again ;; (debug:print 0 "ERROR: Failed to open a connection to the server at: " hostinfo) ;; (debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn)) ;; (debug:print 0 " perhaps jobs killed with -9? Removing server records") ;; (open-run-close tasks:server-deregister tasks:open-db host pullport: pullport) ;; (server:client-setup (- numtries 1)) ;; #f) (server:client-connect iface port pubport)) ;; ) (if (> numtries 0) (let ((exe (car (argv))) (pid #f)) (debug:print-info 0 "No server available, attempting to start one...") ;; (set! pid (process-run exe (list "-server" "-" "-debug" (if (list? *verbosity*) ;; (string-intersperse *verbosity* ",") ;; (conc *verbosity*))))) (set! pid (process-fork (lambda () ;; (current-input-port (open-input-file "/dev/null")) ;; (current-output-port (open-output-file "/dev/null")) ;; (current-error-port (open-output-file "/dev/null")) (server:launch)))) ;; should never get here .... (let loop ((count 0)) (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (if (not hostinfo) (begin (debug:print-info 0 "Waiting for server pid=" pid " to start") (sleep 2) ;; give server time to start (if (< count 5) (loop (+ count 1))))))) ;; we are starting a server, do not try again! That can lead to ;; recursively starting many processes!!! (server:client-setup numtries: 0)) (debug:print-info 1 "Too many attempts, giving up"))))) ;; run server:keep-running in a parallel thread to monitor that the db is being ;; used and to shutdown after sometime if it is not. ;; (define (server:keep-running) ;; 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 ((sdat #f)) (mutex-lock! *heartbeat-mutex*) (set! sdat *runremote*) (mutex-unlock! *heartbeat-mutex*) (if sdat sdat (begin (sleep 4) (loop)))))) (iface (car server-info)) (port (cadr server-info)) (last-access 0) (tdb (tasks:open-db)) (spid (tasks:server-get-server-id tdb #f iface port #f))) (print "Keep-running got server pid " spid ", using iface " iface " and port " port) (let loop ((count 0)) (thread-sleep! 4) ;; no need to do this very often ;; NB// sync currently does NOT return queue-length (let () ;; (queue-len (cdb:client-call server-info 'sync #t 1))) ;; (print "Server running, count is " count) (if (< count 1) ;; 3x3 = 9 secs aprox (loop (+ count 1))) ;; NOTE: Get rid of this mechanism! It really is not needed... (tasks:server-update-heartbeat tdb spid) ;; (if ;; (or (> numrunning 0) ;; stay alive for two days after last access (mutex-lock! *heartbeat-mutex*) (set! last-access *last-db-access*) (mutex-unlock! *heartbeat-mutex*) (if (> (+ last-access ;; (* 50 60 60) ;; 48 hrs ;; 60 ;; one minute ;; (* 60 60) ;; one hour (* 45 60) ;; 45 minutes, until the db deletion bug is fixed. ) (current-seconds)) (begin (debug:print-info 2 "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) (tasks:server-deregister-self tdb (get-host-name)) (thread-sleep! 1) (debug:print-info 0 "Max cached queries was " *max-cache-size*) (debug:print-info 0 "Server shutdown complete. Exiting") (exit))))))) ;; all routes though here end in exit ... (define (server:launch) (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") (let ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))) (debug:print 11 "server:launch hostinfo=" hostinfo) (if hostinfo (debug:print-info 2 "NOT starting new server, one is already running on " (car hostinfo) ":" (cadr hostinfo)) (if *toppath* (let* (;; (th1 (make-thread (lambda () ;; (let ((server-info #f)) ;; ;; wait for the server to be online and available ;; (let loop () ;; (debug:print-info 2 "Waiting for the server to come online before starting heartbeat") ;; (thread-sleep! 2) ;; (mutex-lock! *heartbeat-mutex*) ;; (set! server-info *server-info* ) ;; (mutex-unlock! *heartbeat-mutex*) ;; (if (not server-info)(loop))) ;; (debug:print 2 "Server alive, starting self-ping") ;; (server:self-ping server-info) ;; )) ;; "Self ping")) (th2 (make-thread (lambda () (server:run (if (args:get-arg "-server") (args:get-arg "-server") "-"))) "Server run")) (th3 (make-thread (lambda ()(server:keep-running)) "Keep running")) ) (set! *client-non-blocking-mode* #t) ;; (thread-start! th1) (thread-start! th2) (thread-start! th3) (set! *didsomething* #t) ;; (thread-join! th3) (thread-join! th2) ) (debug:print 0 "ERROR: Failed to setup for megatest"))) (exit))) (define (server:client-signal-handler signum) (handle-exceptions exn (debug:print " ... exiting ...") (let ((th1 (make-thread (lambda () (if (not *received-response*) (receive-message* *runremote*))) ;; flush out last call if applicable "eat response")) (th2 (make-thread (lambda () (debug:print 0 "ERROR: Received ^C, attempting clean exit. Please be patient and wait a few seconds before hitting ^C again.") (thread-sleep! 3) ;; give the flush three seconds to do it's stuff (debug:print 0 " Done.") (exit 4)) "exit on ^C timer"))) (thread-start! th2) (thread-start! th1) (thread-join! th2)))) (define (server:client-launch) (set-signal-handler! signal/int server:client-signal-handler) (if (server:client-setup) (debug:print-info 2 "connected as client") (begin (debug:print 0 "ERROR: Failed to connect as client") (exit)))) ;;====================================================================== ;; Defunct functions ;;====================================================================== ;; ping a server and return number of clients or #f (if no response) ;; NOT IN USE! (define (server:ping host port #!key (secs 10)(return-socket #f)) (cdb:use-non-blocking-mode (lambda () (let* ((res #f) (th1 (make-thread (lambda () (let* ((zmq-context (make-context 1)) (zmq-socket (server:client-connect host port context: zmq-context))) (if zmq-socket (if (server:client-login zmq-socket) (let ((numclients (cdb:num-clients zmq-socket))) (if (not return-socket) (begin (server:client-logout zmq-socket) (close-socket zmq-socket))) (set! res (list #t numclients (if return-socket zmq-socket #f)))) (begin ;; (close-socket zmq-socket) (set! res (list #f "CAN'T LOGIN" #f)))) (set! res (list #f "CAN'T CONNECT" #f))))) "Ping: th1")) (th2 (make-thread (lambda () (let loop ((count 1)) (debug:print-info 1 "Ping " count " server on " host " at port " port) (thread-sleep! 2) (if (< count (/ secs 2)) (loop (+ count 1)))) ;; (thread-terminate! th1) (set! res (list #f "TIMED OUT" #f))) "Ping: th2"))) (thread-start! th2) (thread-start! th1) (handle-exceptions exn (set! res (list #f "TIMED OUT" #f)) (thread-join! th1 secs)) res)))) ;; (define (server:self-ping server-info) ;; ;; server-info: server-id interface pullport pubport ;; (let ((iface (list-ref server-info 1)) ;; (pullport (list-ref server-info 2)) ;; (pubport (list-ref server-info 3))) ;; (server:client-connect iface pullport pubport) ;; (let loop () ;; (thread-sleep! 2) ;; (cdb:client-call *runremote* 'ping #t) ;; (debug:print 4 "server:self-ping - I'm alive on " iface ":" pullport "/" pubport "!") ;; (mutex-lock! *heartbeat-mutex*) ;; (set! *server-loop-heart-beat* (current-seconds)) ;; (mutex-unlock! *heartbeat-mutex*) ;; (loop)))) (define (server:reply pubsock target query-sig success/fail result) (debug:print-info 11 "server:reply target=" target ", result=" result) (send-message pubsock target send-more: #t) (send-message pubsock (db:obj->string (vector success/fail query-sig result)))) |