Megatest

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Comment:Code for server etc. converted to nng but not tested
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SHA1: 9d2d6a97d754b3da485d29ea0bfb1326af98e556
User & Date: matt on 2021-11-02 20:21:38
Other Links: branch diff | manifest | tags
Context
2021-11-03
20:56
Incomplete converstion of dashboard (i.e wip) check-in: 7bd4d885f7 user: matt tags: v1.6584-nanomsg
2021-11-02
20:21
Code for server etc. converted to nng but not tested check-in: 9d2d6a97d7 user: matt tags: v1.6584-nanomsg
2021-10-21
16:19
Got crude nng transport implementation working/ check-in: 96b5fc4451 user: matt tags: v1.6584-nanomsg
Changes

Deleted common.scm version [4b8aa57ac0].

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;;======================================================================
;; Copyright 2006-2012, Matthew Welland.
;; 
;; This file is part of Megatest.
;; 
;;     Megatest is free software: you can redistribute it and/or modify
;;     it under the terms of the GNU General Public License as published by
;;     the Free Software Foundation, either version 3 of the License, or
;;     (at your option) any later version.
;; 
;;     Megatest is distributed in the hope that it will be useful,
;;     but WITHOUT ANY WARRANTY; without even the implied warranty of
;;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;     GNU General Public License for more details.
;; 
;;     You should have received a copy of the GNU General Public License
;;     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

;;======================================================================

;; (use srfi-1 data-structures posix regex-case (prefix base64 base64:)
;;      format dot-locking csv-xml z3 udp ;; sql-de-lite
;;      hostinfo md5 message-digest typed-records directory-utils stack
;;      matchable regex posix (srfi 18) extras ;; tcp 
;;      (prefix nanomsg nmsg:)
;;      (prefix sqlite3 sqlite3:)
;;      pkts (prefix dbi dbi:)
;;      )
;; 
;; (declare (unit common))
;; ;; (declare (uses commonmod))
;; ;; (import commonmod)
;; 
;; (include "common_records.scm")


;; (require-library margs)
;; (include "margs.scm")

;; (define old-exit exit)
;; 
;; (define (exit . code)
;;   (if (null? code)
;;       (old-exit)
;;       (old-exit code)))

Modified megatest.scm from [e4c2fb81d3] to [3421381fd4].

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;; (include "common_records.scm")
;; (include "key_records.scm")
;; (include "db_records.scm")
(include "run_records.scm")
;; (include "test_records.scm")

(include "common.scm")
;; (include "common.scm")
(include "db.scm")
(include "server.scm")
;; (include "server.scm")
(include "tests.scm")
(include "genexample.scm")
(include "tdb.scm")
(include "env.scm")
(include "diff-report.scm")
(include "ods.scm")

Modified rmtmod.scm from [d367d765b7] to [b3af46403d].

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	directory-utils
	;; http-client
	;; intarweb
	matchable
	md5
	message-digest
	nanomsg
	nng ;; nanomsg
	(prefix base64 base64:)
	(prefix sqlite3 sqlite3:)
	regex
	s11n
	;; spiffy
	;; spiffy-directory-listing
	;; spiffy-request-vars
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	(begin
	  (servdat-host-set! *server-info* ipaddrstr)
	  (servdat-port-set! *server-info* port)
	  (servdat-status-set! *server-info* 'trying-port)
	  (servdat-trynum-set! *server-info* (+ (servdat-trynum *server-info*) 1)))
	(set! *server-info* (make-servdat host: ipaddrstr port: port)))
    (let* ((rep (rmt:try-start-server ipaddrstr port)))
      (let loop ((instr (nn-recv rep)))
      (let loop ((instr (nng-recv rep)))
	(let* ((data   (string->sexpr instr))
	       (res    (case data
			 ((quit) 'quit)
			 (else    (api:process-request *dbstruct-db* data))))
	       (resdat (sexpr->string res)))
	  (if (not (eq? res 'quit))
	      (begin
		(set! *db-last-access* (current-seconds))
		(nn-send rep resdat)
		(loop (nn-recv rep)))))))
		(nng-send rep resdat)
		(loop (nng-recv rep)))))))
    (debug:print-info 0 *default-log-port* "After server, should never see this")
    ;; server exit stuff here
    (let* ((portnum (servdat-port *server-info*)))
      (portlogger:open-run-close portlogger:set-port portnum "released")
      (rmt:server-shutdown)
      ;; (bdat-time-to-exit-set! *bdat* #t) ;; tell on-exit to be fast as we've already cleaned up
      (portlogger:open-run-close portlogger:set-port port "released") ;; done in rmt:run
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	(if (not *server-info*)
	    (set! *server-info* (make-servdat
				 host: ipaddrstr
				 port: portnum)))
	(servdat-status-set! *server-info* 'starting)
	(servdat-port-set!   *server-info* portnum)
	(if (not (servdat-rep *server-info*))
	    (let ((rep  (make-rep-socket)))
	    (servdat-rep-set!    *server-info*  (nn-socket 'rep)))
	      (servdat-rep-set!    *server-info* rep)
	      (socket-set! rep 'nng/recvtimeo 2000)))
	(let* ((rep (servdat-rep *server-info*)))
	  (debug:print 0 *default-log-port* "INFO: Trying to start server on " ipaddrstr ":" portnum)
	  (handle-exceptions
	   exn
	   (begin
	     (print-error-message exn)
	     (if (< portnum 64000)
		 (begin 
		   (debug:print 0 *default-log-port* "WARNING: attempt to start server failed. Trying again ...")
		   (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
		   (debug:print 5 *default-log-port* "exn=" (condition->list exn))
		   (portlogger:open-run-close portlogger:set-failed portnum)
		   (debug:print 0 *default-log-port* "WARNING: failed to start on portnum: " portnum ", trying next port")
		   ;; (thread-sleep! 0.1)
		   (rmt:try-start-server ipaddrstr
					 (portlogger:open-run-close portlogger:find-port)))
		 (begin
		   (print "ERROR: Tried and tried but could not start the server, stopping at port "portnum))))
	   (nn-bind rep (conc "tcp://*:" portnum))
	   (nng-listen rep (conc "tcp://*:" portnum))
	   rep)))))

;;======================================================================
;; S E R V E R   U T I L I T I E S 
;;======================================================================

;;======================================================================
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		    (set! ret  #t))
		  (loop (read-line inp)))))))
    ret))

;;start a server, returns the connection
;;
(define (start-nn-server portnum )
  (let ((rep (nn-socket 'rep)))
  (let ((rep (make-rep-socket))) ;; (nn-socket 'rep)))
    (socket-set! rep 'nng/recvtimeo 2000)
    (handle-exceptions
     exn
     (let ((emsg ((condition-property-accessor 'exn 'message) exn)))
       (print "ERROR: Failed to start server \"" emsg "\"")
       (exit 1))
      
     (nn-bind rep (conc "tcp://*:" portnum)))
     (nng-dial #;nn-bind rep (conc "tcp://*:" portnum)))
    rep))

;; open connection to server, send message, close connection
;;
(define (open-send-close-nn host-port msg #!key (timeout 3) ) ;; default timeout is 3 seconds
  (let ((req  (nn-socket 'req))
  (let ((req  (make-req-socket 'req))
        (uri  (conc "tcp://" host-port))
        (res  #f)
        ;; (contacts (alist-ref 'contact attrib))
        ;; (mode (alist-ref 'mode attrib))
	) 
	)
    (socket-set! req 'nng/recvtimeo 2000)
    (handle-exceptions
     exn
     (let ((emsg ((condition-property-accessor 'exn 'message) exn)))
       ;; Send notification       
       (debug:print 0 *default-log-port* "ERROR: Failed to connect / send to " uri " message was \"" emsg "\"" )
       #f)
     (nn-connect req uri)
     (nng-dial req uri)
     ;; (print "Connected to the server " )
     (nn-send req msg)
     (nng-send req msg)
     ;; (print "Request Sent")  
     (let* ((th1  (make-thread (lambda ()
                                 (let ((resp (nn-recv req)))
                                   (nn-close req)
                                 (let ((resp (nng-recv req)))
                                   (nng-close! req)
                                   (set! res (if (equal? resp "ok")
                                                 #t
                                                 #f))))
                               "recv thread"))
            (th2 (make-thread (lambda ()
                                (thread-sleep! timeout)
                                (thread-terminate! th1))
			      "timer thread")))
       (thread-start! th1)
       (thread-start! th2)
       (thread-join! th1)
       res))))

(define (open-send-receive-nn host-port msg #!key (timeout 3) ) ;; default timeout is 3 seconds
  (let ((req  (nn-socket 'req))
  (let ((req  (make-req-socket))
        (uri  (conc "tcp://" host-port))
        (res  #f)
	;;        (contacts (alist-ref 'contact attrib))
        ;; (mode (alist-ref 'mode attrib))
	) 
    (handle-exceptions
     exn
     (let ((emsg ((condition-property-accessor 'exn 'message) exn)))
       ;; Send notification      
       (debug:print 0 *default-log-port* "ERROR: Failed to connect / send to " uri " message was \"" emsg "\", exn=" exn)
       #f)
     (nn-connect req uri)
     (nng-dial req uri)
     ;; (print "Connected to the server " )
     (nn-send req msg)
     (nng-send req msg)
     ;; (print "Request Sent")  
     ;; receive code here
     ;;(print (nn-recv req))
     (let* ((th1  (make-thread (lambda ()
                                 (let ((resp (nn-recv req)))
                                   (nn-close req)
                                 (let ((resp (nng-recv req)))
                                   (nng-close! req)
                                   (print resp)
                                   (set! res resp)))
                               "recv thread"))
            (th2 (make-thread (lambda ()
                                (thread-sleep! timeout)
                                (thread-terminate! th1))
                             "timer thread")))

Deleted server.scm version [7011752052].

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;; Copyright 2006-2017, Matthew Welland.
;; 
;; This file is part of Megatest.
;; 
;;     Megatest is free software: you can redistribute it and/or modify
;;     it under the terms of the GNU General Public License as published by
;;     the Free Software Foundation, either version 3 of the License, or
;;     (at your option) any later version.
;; 
;;     Megatest is distributed in the hope that it will be useful,
;;     but WITHOUT ANY WARRANTY; without even the implied warranty of
;;     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;     GNU General Public License for more details.
;; 
;;     You should have received a copy of the GNU General Public License
;;     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.
;;

;; (require-extension (srfi 18) extras tcp s11n)
;; 
;; (use srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest
;;      directory-utils posix-extras matchable)
;; 
;; (use spiffy uri-common intarweb http-client spiffy-request-vars)
;; 
;; (declare (unit server))
;; 
;; (declare (uses common))
;; (declare (uses db))
;; (declare (uses tasks)) ;; tasks are where stuff is maintained about what is running.
;; ;; (declare (uses synchash))
;; (declare (uses http-transport))
;; ;;(declare (uses rpc-transport))
;; (declare (uses launch))
;; ;; (declare (uses daemon))
;; 
;; (include "common_records.scm")
;; (include "db_records.scm")

;;======================================================================
;; P K T S   S T U F F 
;;======================================================================

;; ???

;;======================================================================
;; P K T S   S T U F F 
;;======================================================================

;; ???