Megatest

Changes On Branch f4844a3801955be7
Login

Changes In Branch v1.80-revolution Through [f4844a3801] Excluding Merge-Ins

This is equivalent to a diff from b5f1f35f26 to f4844a3801

2023-12-03
02:16
Proper calling of exit cleanup for servers. Go back to nbfake for running servers (proper logs kept). Remove .servinfo file for a server that does not respond to ping (returns #f). check-in: 2725343c92 user: matt tags: v1.80-revolution
2023-11-28
13:45
Bypass all the mutexes in dashboard. It seems to help with performance quite a bit. check-in: f4844a3801 user: mrwellan tags: v1.80-revolution, v1.8022
08:53
Exit server if not in running within 30 seconds check-in: cdd1ad3a92 user: mrwellan tags: v1.80-revolution, v1.8022
2023-11-10
19:49
Last seemingly good commit on all platforms. check-in: 1d9da3b7a0 user: matt tags: v1.80-revolution
2023-10-09
19:51
Merged v1.80 in check-in: 38506ffe03 user: matt tags: v1.80
19:38
fix port setting Leaf check-in: b5f1f35f26 user: matt tags: v1.80-processes
10:59
Added force-init to db open proc. check-in: b1a043e49f user: mrwellan tags: v1.80-processes

Modified TODO from [14d60a1c73] to [d1855eb2e9].

14
15
16
17
18
19
20
































21
22
23
24
25
26
27
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







+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







# 
#     You should have received a copy of the GNU General Public License
#     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

TODO
====

23WW47
. Finding server
.. look at .servinfo for likely prime main
.. ask the .servinfo prime main for real prime main
.. save prime main (for how long, 10 seconds or 10 minutes?)

. Starting prime main
.. get servinfo files - START
.. no files? create my servinfo file, goto START
.. have files? am I the prime main according to servinfo files?
.. no, I'm not the prime main, ping prime main
.. ping is good, prime main exists, register self as server if on same host as prime main DONE
.. no pirng response, remove the .servinfo file - goto START
.. if I am prime main according to .servinfo files, register directly in no-sync

. Starting non-main
.. get servinfo files
.. no files? launch server for main.db
.. have files? pick out prime main
.. register self as server with prime main

23WW46 - v1.80 branch
. Use file semaphore to kill tests, eliminate db load of the KILLREQ query
. Merge this change to revolution branch
23WW45 - the revolution branch
. Add "fast" db start option (no handshaking over NFS)
. Add server-ro to server types (just "server" is fine for read/write).
. [DONE] Create pause-server and resume-server calls
. Create rsync or cp sync to MTRAH function
. Change rmt:send-receive to divert calls to read-only server when possible
. [DONE] Change start server to call main.db server for 1..N.db servers, block until server is read for use.

23WW21
. Dashboard needs its own cache db in /tmp

23WW07
. Remove use of *dbstruct-dbs*

WW15

Modified api.scm from [5fa313076b] to [b08fe263c7].

33
34
35
36
37
38
39
40


41
42
43
44
45
46
47
33
34
35
36
37
38
39

40
41
42
43
44
45
46
47
48







-
+
+







(import debugprint)
(import tcp-transportmod)

(use srfi-69
     srfi-18
     posix
     matchable
     s11n)
     s11n
     typed-records)

;; allow these queries through without starting a server
;;
(define api:read-only-queries
  '(get-key-val-pairs
    get-var
    get-keys
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
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







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

















-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+












-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+




+
+
+
+
+
+
+
+
+
+
+








-
+







    ;; TASKS
    tasks-add
    tasks-set-state-given-param-key
    ))

(define *db-write-mutexes* (make-hash-table))
(define *server-signature* #f)
;; ;; These are called by the server on recipt of /api calls
;; ;;    - keep it simple, only return the actual result of the call, i.e. no meta info here
;; ;;
;; ;;    - returns #( flag result )
;; ;;
;; (define (api:execute-requests dbstruct dat)
;;   (if (> *api-process-request-count* 50)
;;       (begin
;; 	(if (common:low-noise-print 30 "too many threads")
;; 	    (debug:print 0 *default-log-port* "WARNING: "*api-process-request-count*" threads, potential overload, adding 0.5 sec delay."))
;; 	;; (thread-sleep! 0.5) ;; take a nap - no, the napping is moved to the clients via tt:backoff-incr
;; 	))
;;   (cond
;;    ((not (vector? dat))                    ;; it is an error to not receive a vector
;;     (vector #f (vector #f "remote must be called with a vector")))
;;    (else  
;;     (let* ((cmd-in            (vector-ref dat 0))
;;            (cmd               (if (symbol? cmd-in)
;; 				  cmd-in
;; 				  (string->symbol cmd-in)))
;;            (params            (vector-ref dat 1))
;; 	   (run-id            (if (null? params)
;; 				  0
;; 				  (car params)))
;; 	   (write-mutex       (if (hash-table-exists? *db-write-mutexes* run-id)
;; 				  (hash-table-ref *db-write-mutexes* run-id)
;; 				  (let* ((newmutex (make-mutex)))
;; 				    (hash-table-set! *db-write-mutexes* run-id newmutex)
;; 				    newmutex)))
;;            (start-t           (current-milliseconds))
;;            (readonly-mode     (dbr:dbstruct-read-only dbstruct))
;;            (readonly-command  (member cmd api:read-only-queries))
;;            (writecmd-in-readonly-mode (and readonly-mode (not readonly-command))))
;;       (if (not readonly-command)
;; 	  (mutex-lock! write-mutex))
;;       (let* ((tmppath    (dbr:dbstruct-tmppath  dbstruct))
;; 	     (clean-run-id (cond
;; 			    ((number? run-id)   run-id)
;; 			    ((equal? run-id #f) "main")
;; 			    (else               "other")))
;; 	     (crumbfile  (dbfile:wait-for-qif tmppath clean-run-id (cons cmd params)))
;; 	     (res    
;;               (if writecmd-in-readonly-mode
;;                   (conc "attempt to run write command "cmd" on a read-only database")
;; 		  (api:dispatch-request dbstruct cmd run-id params))))
;; 	(delete-file* crumbfile)
;; 	(if (not readonly-command)
;; 	    (mutex-unlock! write-mutex))
;; 	
;; 	;; save all stats
;; 	(let ((delta-t (- (current-milliseconds)
;; 			  start-t))
;; 	      (modified-cmd (if (eq? cmd 'general-call)
;; 				(string->symbol (conc "general-call-" (car params)))
;; 				cmd)))
;; 	  (hash-table-set! *db-api-call-time* modified-cmd
;; 			   (cons delta-t (hash-table-ref/default *db-api-call-time* modified-cmd '()))))
;; 	(if writecmd-in-readonly-mode
;;             (begin
;;               #;(common:telemetry-log (conc "api-out:"(->string cmd))
;;               payload: `((params . ,params)
;;               (ok-res . #t)))
;; 	      (vector #f res))
;;             (begin
;;               #;(common:telemetry-log (conc "api-out:"(->string cmd))
;;               payload: `((params . ,params)
;;               (ok-res . #f)))
;;               (vector #t res))))))))

(define *api-threads* '())
(define (api:register-thread th-in)
  (set! *api-threads* (cons (cons th-in (current-seconds)) *api-threads*)))

(define (api:unregister-thread th-in)
  (set! *api-threads* (filter (lambda (thdat)
				(not (eq? th-in (car thdat))))
			      *api-threads*)))

(define (api:remove-dead-or-terminated)
  (set! *api-threads* (filter (lambda (thdat)
				(not (member (thread-state (car thdat)) '(terminated dead))))
			      *api-threads*)))

(define (api:get-count-threads-alive)
  (length *api-threads*))
  

(define *api:last-stats-print* 0)
(define *api-print-db-stats-mutex* (make-mutex))
(define (api:print-db-stats)
  (debug:print-info 0 *default-log-port* "Started periodic db stats printer")
  (let loop ()
    (mutex-lock! *api-print-db-stats-mutex*)
    (if (> (- (current-seconds) *api:last-stats-print*) 15)
	(begin
	  (rmt:print-db-stats)
	  (set! *api:last-stats-print* (current-seconds))))
    (mutex-unlock! *api-print-db-stats-mutex*)
    (thread-sleep! 5)
    (loop)))


;; indat is (cmd run-id params meta)
;;
;; WARNING: Do not print anything in the lambda of this function as it
;;          reads/writes to current in/out port
;;
(define (api:tcp-dispatch-request-make-handler dbstruct) ;; cmd run-id params)
  (assert *toppath* "FATAL: api:tcp-dispatch-request-make-handler called but *toppath* not set.")
  (if (not *server-signature*)
      (set! *server-signature* (tt:mk-signature *toppath*)))
  (lambda (indat)
    (api:register-thread (current-thread))
    (let* (;; (indat      (deserialize))
    (let* ((result 
	   (newcount   (+ *api-process-request-count* 1))
	   (numthreads (api:get-count-threads-alive))
	   (delay-wait (if (> newcount 10)
			   (- newcount 10)
			   0))
	   (normal-proc (lambda (cmd run-id params)
			  (case cmd
			    ((ping) *server-signature*)
			    (else
			     (api:dispatch-request dbstruct cmd run-id params))))))
      (set! *api-process-request-count* newcount)
      (set! *db-last-access* (current-seconds))
      (if (not (eq? newcount numthreads))
	  (begin
	    (api:remove-dead-or-terminated)
	    (let ((threads-now (api:get-count-threads-alive)))
	      (debug:print 0 *default-log-port* "WARNING: newcount="newcount", numthreads="numthreads", remaining="threads-now)
	      (set! newcount threads-now))))
      (match indat
	((cmd run-id params meta)
	 (let* ((db-ok  (let* ((dbfname (dbmod:run-id->dbfname run-id))
			       (ok      (equal? dbfname (dbr:dbstruct-dbfname dbstruct))))
			  (case cmd
			    ((ping) #t) ;; we are fine
			    (else
	    (let* ((numthreads (api:get-count-threads-alive))
		   (delay-wait (if (> numthreads 10)
				   (- numthreads 10)
				   0))
		   (normal-proc (lambda (cmd run-id params)
				  (case cmd
				    ((ping) *server-signature*)
				    (else
				     (api:dispatch-request dbstruct cmd run-id params))))))
	      (set! *api-process-request-count* numthreads)
	      (set! *db-last-access* (current-seconds))
;; 	      (if (not (eq? numthreads numthreads))
;; 	      (begin
;; 	      (api:remove-dead-or-terminated)
;; 	      (let ((threads-now (api:get-count-threads-alive)))
;; 	      (debug:print 0 *default-log-port* "WARNING: numthreads="numthreads", numthreads="numthreads", remaining="threads-now)
;; 	      (set! numthreads threads-now))))
	      (match indat
		     ((cmd run-id params meta)
		      (let* ((start-t (current-milliseconds))
			     (db-ok  (let* ((dbfname (dbmod:run-id->dbfname run-id))
					    (ok      (equal? dbfname (dbr:dbstruct-dbfname dbstruct))))
				       (case cmd
					 ((ping) #t) ;; we are fine
					 (else
			     (if (not ok)(debug:print 0 *default-log-port* "ERROR: "cmd", run-id "run-id", not correct for dbfname "(dbr:dbstruct-dbfname dbstruct)))
			     (assert ok "FATAL: database file and run-id not aligned.")))))
		(ttdat   *server-info*)
		(server-state (tt-state ttdat))
		(status  (cond
			  ((> newcount 3) 'busy)
			  ;; ((> newcount 5) 'loaded) ;; this gets transmitted to the client which calls tt:backoff-incr to slow stuff down.
			  (else 'ok)))
		(errmsg  (case status
			   ((busy)   (conc "Server overloaded, "newcount" threads in flight"))
			   ((loaded) (conc "Server loaded, "newcount" threads in flight"))
			   (else     #f)))
		(result  (case status
			   ((busy)
			    (if (eq? cmd 'ping)
				(normal-proc cmd run-id params)
				;; newcount must be greater than 5 for busy
				(* 1 (- newcount 3)) ;; was 15
				)) ;; (- newcount 29)) ;; call back in as many seconds
			   ((loaded)
;; 			    (if (eq? (rmt:transport-mode) 'tcp)
;; 				(thread-sleep! 0.5))
			    (normal-proc cmd run-id params))
			   (else
			    (normal-proc cmd run-id params))))
		(meta   (case cmd
			  ((ping) `((sstate . ,server-state)))
			  (else   `((wait . ,delay-wait)))))
		(payload (list status errmsg result meta)))
	   (set! *api-process-request-count* (- *api-process-request-count* 1))
	   ;; (serialize payload)
	   (api:unregister-thread (current-thread))
	   payload))
	(else
	 (assert #f "FATAL: failed to deserialize indat "indat))))))
       
					  (assert ok "FATAL: database file and run-id not aligned.")))))
			     (ttdat   *server-info*)
			     (server-state (tt-state ttdat))
			     (maxthreads   20) ;; make this a parameter?
			     (status  (cond
				       ((and (> numthreads maxthreads)
					     (> (random 100) 70)) ;; allow a 30% probability to go through so we can figure out what is going wrong in main.db server.
					'busy)
				       ;; ((> numthreads 5) 'loaded) ;; this gets transmitted to the client which calls tt:backoff-incr to slow stuff down.
				       (else 'ok)))
			     (errmsg  (case status
					((busy)   (conc "Server overloaded, "numthreads" threads in flight"))
					((loaded) (conc "Server loaded, "numthreads" threads in flight"))
					(else     #f)))
			     (result  (case status
					((busy)
					 (if (eq? cmd 'ping)
					     (normal-proc cmd run-id params)
					     ;; numthreads must be greater than 5 for busy
					     (* 0.1 (- numthreads maxthreads)) ;; was 15
					     )) ;; (- numthreads 29)) ;; call back in as many seconds
					((loaded)
					 ;; 			    (if (eq? (rmt:transport-mode) 'tcp)
					 ;; 				(thread-sleep! 0.5))
					 (normal-proc cmd run-id params))
					(else
					 (normal-proc cmd run-id params))))
			     (meta   (case cmd
				       ((ping) `((sstate . ,server-state)))
				       (else   `((wait . ,delay-wait)))))
			     (payload (list status errmsg result meta)))
			;; (cmd run-id params meta)
			(db:add-stats cmd run-id params (- (current-milliseconds) start-t))
			payload))
		     (else
		      (assert #f "FATAL: failed to deserialize indat "indat))))))
      ;; (set! *api-process-request-count* (- *api-process-request-count* 1))
      ;; (serialize payload)
     
      (api:unregister-thread (current-thread))
      result)))



(define *api-halt-writes* #f)

(define (api:dispatch-request dbstruct cmd run-id params)
  (if (not *no-sync-db*)
      (db:open-no-sync-db))
  (let* ((start-time (current-milliseconds)))
    (if (member cmd api:write-queries)
	(let loop ()
	  (if *api-halt-writes*
	      (begin
		(thread-sleep! 0.2)
		(if (< (- (current-milliseconds) start-time)
		       5000) ;; hope it don't take more than five seconds to sync
		    (loop-time)
		    #;(debug:print 0 *default-log-port* "ERROR: writes halted for more than 5 seconds, sync might be taking too long"))))))
    (db:add-stats 'api-write-blocking-for-sync run-id params (- (current-milliseconds) start-time)))
  (case cmd
    ;;===============================================
    ;; READ/WRITE QUERIES
    ;;===============================================

    ((get-keys-write)                        (db:get-keys dbstruct)) ;; force a dummy "write" query to force server; for debug in -repl
    
    ;; SERVERS
    ((start-server)                    (apply server:kind-run params))
    ((start-server)                    (apply tt:server-process-run params))
    ((kill-server)                     (set! *server-run* #f))

    ;; TESTS

    ;;((test-set-state-status-by-id)     (apply mt:test-set-state-status-by-id dbstruct params))
    ;;BB - commented out above because it was calling below, eventually, incorrectly (dbstruct passed to mt:test-set-state-status-by-id, which previosly did more, but now only passes thru to db:set-state-status-and-roll-up-items.
    ((test-set-state-status-by-id)
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
478
479
480
481
482
483
484













































-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

    ;; TASKS 
    ((find-task-queue-records)   (apply tasks:find-task-queue-records dbstruct params))
    (else
     (debug:print 0 *default-log-port* "ERROR: bad api call " cmd)
     (conc "ERROR: BAD api call " cmd))))

;; http-server  send-response
;;                 api:process-request
;;                    db:*
;;
;; NB// Runs on the server as part of the server loop
;;
(define (api:process-request dbstruct $) ;; the $ is the request vars proc
  (debug:print 4 *default-log-port* "server-id:"  *server-id*)
  (let* ((cmd     ($ 'cmd))
	 (paramsj ($ 'params))
         (key     ($ 'key))   
	 (params  (db:string->obj paramsj transport: 'http))) ;; incoming data from the POST (or is it a GET?)
    (debug:print 4 *default-log-port* "cmd:" cmd " with params " params "key " key)
    (if (equal? key *server-id*)
      (begin
        (set! *api-process-request-count* (+ *api-process-request-count* 1))
 	(let* ((resdat  (api:execute-requests dbstruct (vector cmd params))) ;; process the request, resdat = #( flag result )
	       (success (vector-ref resdat 0))
	       (res     (vector-ref resdat 1))) ;; (vector flag payload), get the payload, ignore the flag (why?)
	  (debug:print 4 *default-log-port* "res:" res)
	  (if (not success)
	      (debug:print 0 *default-log-port* "ERROR: success flag is #f for " cmd " with params " params))
	  (if (> *api-process-request-count* *max-api-process-requests*)
	      (set! *max-api-process-requests* *api-process-request-count*))
	  (set! *api-process-request-count* (- *api-process-request-count* 1))
	  ;; This can be here but needs controls to ensure it doesn't run more than every 4 seconds
	  ;; (rmt:dat->json-str
	  ;;  (if (or (string? res)
	  ;;          (list?   res)
	  ;;          (number? res)
	  ;;          (boolean? res))
	  ;;      res 
	  ;;      (list "ERROR, not string, list, number or boolean" 1 cmd params res)))))
	  (db:obj->string res transport: 'http)))
	(begin
	  (debug:print 0 *default-log-port*   "Server refused to process request. Server id mismatch. recived " key " expected:  " *server-id* ".\nOther arguments recived: cmd=" cmd " params = " params) 
	  (db:obj->string (conc "Server refused to process request server-id mismatch: " key ", " *server-id*) transport: 'http)))))

Modified archive.scm from [e07377cf5e] to [e156e4a1c8].

357
358
359
360
361
362
363
364

365
366
367
368
369
370
371
357
358
359
360
361
362
363

364
365
366
367
368
369
370
371







-
+







        (print-prefix      "Running: ") 
        (archive-info (archive:allocate-new-archive-block blockid-cache *toppath* tsname min-space target-patt run-patt "megatest-db"))
	(archive-dir  (if archive-info (cdr archive-info) #f))
	(archive-id   (if archive-info (car archive-info) -1))
        (home-host    (server:choose-server *toppath* 'homehost))
        (archive-time (seconds->std-time-str (current-seconds)))
        (archive-staging-db (conc *toppath* "/.db-snapshot/archive_" archive-time))
        (tmp-db-path (conc (common:get-db-tmp-area) "/megatest.db"))
        (tmp-db-path (conc (dbfile:make-tmpdir-name *toppath* "") "/megatest.db"))
        (dbfile             (conc  archive-staging-db "/megatest.db"))) 
        (create-directory archive-staging-db #t)
        (let-values (((pid-val exit-status exit-code) (run-n-wait rsync-exe params: (list "-v" (conc (car home-host) ":"tmp-db-path) archive-staging-db) print-cmd: print-prefix)))
            (if (eq? exit-code 0)   
              (case archiver
	        ((bup) ;; Archive using bup
	          (let* ((bup-init-params  (list "-d" archive-dir "init"))

Modified common.scm from [516effd7ae] to [adf24d701b].

19
20
21
22
23
24
25

26
27
28
29
30
31
32
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33







+







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

(declare (unit common))
(declare (uses commonmod))
(declare (uses rmtmod))
(declare (uses debugprint))
(declare (uses mtargs))
        

(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:)
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
152
153
154
155
156
157
158




159
160
161
162
163
164
165







-
-
-
-







;; (define *common:denoise*    (make-hash-table)) ;; for low noise printing
(define *default-log-port*  (current-error-port))
(define *time-zero* (current-seconds)) ;; for the watchdog
(define *on-exit-procs* '()) ;; add procs to this list to be executed on exit
(define *default-area-tag* "local")

;; DATABASE
;; (define *dbstruct-dbs*         #f) ;; used to cache the dbstruct in db:setup. Goal is to remove this.
;; db stats
(define *db-stats*            (make-hash-table)) ;; hash of vectors < count duration-total >
(define *db-stats-mutex*      (make-mutex))
;; db access
(define *db-last-access*      (current-seconds)) ;; last db access, used in server
;; (define *db-write-access*     #t)
;; db sync
;; (define *db-last-sync*        0)                 ;; last time the sync to megatest.db happened
(define *db-sync-in-progress* #f)                ;; if there is a sync in progress do not try to start another
;; (define *db-multi-sync-mutex* (make-mutex))      ;; protect access to *db-sync-in-progress*, *db-last-sync*
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
176
177
178
179
180
181
182

183
184
185
186
187
188
189







-







(define *transport-type*    'http)             ;; override with [server] transport http|rpc|nmsg
(define *runremote*         #f)                ;; if set up for server communication this will hold <host port>
;; (define *max-cache-size*    0)
(define *logged-in-clients* (make-hash-table))
(define *server-id*         #f)
(define *server-info*       #f)  ;; good candidate for easily convert to non-global
(define *time-to-exit*      #f)
(define *server-run*        #t)
(define *run-id*            #f)
(define *server-kind-run*   (make-hash-table))
(define *home-host*         #f)
;; (define *total-non-write-delay* 0)
(define *heartbeat-mutex*   (make-mutex))
;; (define *api-process-request-count* 0)
;; (define *max-api-process-requests* 0)
245
246
247
248
249
250
251
252

253
254
255
256
257
258
259
241
242
243
244
245
246
247

248
249
250
251
252
253
254
255







-
+







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

(define *common:this-exe-fullpath* (common:get-this-exe-fullpath))
(define *common:this-exe-dir*      (pathname-directory *common:this-exe-fullpath*))
(define *common:this-exe-name*     (pathname-strip-directory *common:this-exe-fullpath*))

(define (common:get-sync-lock-filepath)
  (let* ((tmp-area     (common:get-db-tmp-area))
  (let* ((tmp-area     (common:make-tmpdir-name *toppath* ""))
         (lockfile     (conc tmp-area "/megatest.db.lock")))
    lockfile))

(define *common:logpro-exit-code->status-sym-alist*
  '( ( 0 . pass )
     ( 1 . fail )
     ( 2 . warn )
1531
1532
1533
1534
1535
1536
1537
1538

1539
1540
1541
1542
1543
1544
1545
1527
1528
1529
1530
1531
1532
1533

1534
1535
1536
1537
1538
1539
1540
1541







-
+







;;======================================================================
;; lazy-safe get file mod time. on any error (file not existing etc.) return 0
;;
(define (common:lazy-modification-time fpath)
  (handle-exceptions
      exn
    (begin
      (debug:print 0 *default-log-port* "Failed to get modifcation time for " fpath ", treating it as zero. exn=" exn)
      (debug:print 2 *default-log-port* "Failed to get modification time for " fpath ", treating it as zero. exn=" exn)
      0)
    (if (file-exists? fpath)
	(file-modification-time fpath)
	0)))

;;======================================================================
;; find timestamp of newest file associated with a sqlite db file
2278
2279
2280
2281
2282
2283
2284
2285

2286
2287
2288
2289
2290
2291
2292
2274
2275
2276
2277
2278
2279
2280

2281
2282
2283
2284
2285
2286
2287
2288







-
+







;; returns: ok/not dbspace required-space
;;
(define (common:check-db-dir-space)
  (let* ((required (string->number 
                    ;; default is 1GB (or actually a billion bytes) This is the number of 1 kB blocks.
		    (or (configf:lookup *configdat* "setup" "dbdir-space-required")
			"1000000")))
	 (dbdir    (common:get-db-tmp-area)) ;; (db:get-dbdir))
	 (dbdir    (common:make-tmpdir-name *toppath* "")) ;; (db:get-dbdir))
	 (tdbspace (common:check-space-in-dir dbdir required))
	 (mdbspace (common:check-space-in-dir *toppath* required)))
    (sort (list tdbspace mdbspace) (lambda (a b)
				     (< (cadr a)(cadr b))))))

;;======================================================================
;; check available space in dbdir, exit if insufficient

Modified commonmod.scm from [7e88abb9dd] to [5c1deb5d33].

158
159
160
161
162
163
164







165
166
167
168
169
170
171
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178







+
+
+
+
+
+
+







    (if valstr
	(val->alist valstr)
	'()))) ;; should it return empty list or #f to indicate not set?


(define (get-section cfgdat section)
  (hash-table-ref/default cfgdat section '()))

(define (common:make-tmpdir-name areapath tmpadj)
  (let* ((area (pathname-file areapath))
         (dname (conc "/tmp/"(current-user-name)"/megatest_localdb/" area "/" (string-translate areapath "/" ".") tmpadj "/.mtdb")))
    (unless (directory-exists? dname)
      (create-directory dname #t))
    dname))

;; dot-locking egg seems not to work, using this for now
;; if lock is older than expire-time then remove it and try again
;; to get the lock
;;
(define (common:simple-file-lock fname #!key (expire-time 300))
  (let* ((lock-exists (file-exists? fname))

Modified dashboard-tests.scm from [d3d14d0eb8] to [63a55f86f7].

461
462
463
464
465
466
467
468

469
470
471
472
473
474
475
461
462
463
464
465
466
467

468
469
470
471
472
473
474
475







-
+







    dlog))


;;======================================================================
;;
;;======================================================================
(define (dashboard-tests:examine-test run-id test-id) ;; run-id run-key origtest)
  (let* ((db-path       (db:dbfile-path)) ;; (conc (configf:lookup *configdat* "setup" "linktree") "/db/" run-id ".db"))
  (let* ((db-path       (common:make-tmpdir-name *toppath* "")) ;; (conc (configf:lookup *configdat* "setup" "linktree") "/db/" run-id ".db"))
	 (dbstruct      #f) ;; NOT USED
	 (testdat        (rmt:get-test-info-by-id run-id test-id)) ;; (db:get-test-info-by-id dbstruct run-id test-id))
	 (db-mod-time   0) ;; (file-modification-time db-path))
	 (last-update   0) ;; (current-seconds))
	 (request-update #t))
    (if (not testdat)
	(begin

Modified dashboard.scm from [d064a48d13] to [85a6624511].

400
401
402
403
404
405
406
407
408


409
410
411
412
413
414
415
400
401
402
403
404
405
406


407
408
409
410
411
412
413
414
415







-
-
+
+







(define (dboard:tabdat-make-data)
  (let ((dat (make-dboard:tabdat)))
    (dboard:setup-tabdat dat)
    (dboard:setup-num-rows dat)
    dat))

(define (dboard:setup-tabdat tabdat)
  (dboard:tabdat-dbdir-set! tabdat (db:dbfile-path)) ;; (conc (configf:lookup *configdat* "setup" "linktree") "/.db"))
  (dboard:tabdat-dbfpath-set! tabdat (db:dbfile-path))
  (dboard:tabdat-dbdir-set! tabdat (common:make-tmpdir-name *toppath* "")) ;; (conc (configf:lookup *configdat* "setup" "linktree") "/.db"))
  (dboard:tabdat-dbfpath-set! tabdat (common:make-tmpdir-name *toppath* ""))
  (dboard:tabdat-monitor-db-path-set! tabdat (conc (dboard:tabdat-dbdir tabdat) "/monitor.db"))


  ;; HACK ALERT: this is a hack, please fix.
  (dboard:tabdat-ro-set! tabdat (not (file-read-access? (dboard:tabdat-dbfpath tabdat))))
  (dboard:tabdat-keys-set! tabdat (rmt:get-keys))
  (dboard:tabdat-dbkeys-set! tabdat (append (dboard:tabdat-keys tabdat) (list "runname")))
926
927
928
929
930
931
932
933

934
935
936
937
938

939
940
941
942
943
944
945
926
927
928
929
930
931
932

933
934
935
936
937

938
939
940
941
942
943
944
945







-
+




-
+







	      (if (null? all-test-ids)
		  (hash-table-delete! (dboard:tabdat-allruns-by-id tabdat) run-id)
		  (hash-table-set!    (dboard:tabdat-allruns-by-id tabdat) run-id run-struct))
	      (if (or (null? tal)
		      (> elapsed-time 2)) ;; stop loading data after 5 seconds, on the next call more data *should* be loaded since get-tests-for-run uses last update
		  (begin
		    (when (> elapsed-time 2)   
                      (debug:print 0 *default-log-port* "NOTE: updates are taking a long time, " elapsed-time "s elapsed.")
                      (debug:print 2 *default-log-port* "NOTE: updates are taking a long time, " elapsed-time "s elapsed.")
                      (let* ((old-val (iup:attribute *tim* "TIME"))
                             (new-val (number->string (inexact->exact (floor (* 2  (string->number old-val)))))))
                        (if (< (string->number new-val) 5000)
                            (begin
			      (debug:print 0 *default-log-port* "NOTE: increasing poll interval from "old-val" to "new-val)
			      (debug:print 2 *default-log-port* "NOTE: increasing poll interval from "old-val" to "new-val)
			      (iup:attribute-set! *tim* "TIME" new-val)))))
		    (dboard:tabdat-allruns-set! tabdat new-res)
		    maxtests)
		  (if (> (dboard:rundat-run-data-offset run-struct) 0)
		      (loop run tal new-res newmaxtests) ;; not done getting data for this run
		      (loop (car tal)(cdr tal) new-res newmaxtests)))))))
    (dboard:tabdat-filters-changed-set! tabdat #f)
2402
2403
2404
2405
2406
2407
2408
2409

2410
2411
2412
2413
2414
2415
2416
2417
2418


2419
2420
2421
2422
2423
2424
2425
2402
2403
2404
2405
2406
2407
2408

2409
2410
2411
2412
2413
2414
2415
2416
2417

2418
2419
2420
2421
2422
2423
2424
2425
2426







-
+








-
+
+







                                         #:modal? "NO")
                               )
                              )
                            
                             )) "runs-summary-click-callback"))))
	 (runs-summary-updater  
          (lambda ()
	    (mutex-lock! update-mutex)
	    ;; (mutex-lock! update-mutex)
            (if  (or (dashboard:database-changed? commondat tabdat context-key: 'runs-summary-updater)
                     (dboard:tabdat-view-changed tabdat))
                 (debug:catch-and-dump
                  (lambda () ;; check that run-matrix is initialized before calling the updater
		    (if run-matrix 
			(dashboard:runs-summary-updater commondat tabdat tb cell-lookup run-matrix)))
                  "dashboard:runs-summary-updater")
                 )
	    (mutex-unlock! update-mutex)))
	    #;(mutex-unlock! update-mutex)
	    ))
         (runs-summary-control-panel (dashboard:runs-summary-control-panel tabdat))
         )
    (dboard:commondat-add-updater commondat runs-summary-updater tab-num: tab-num)
    (dboard:tabdat-runs-tree-set! tabdat tb)
    (iup:vbox
     (iup:split
      #:value 200
3110
3111
3112
3113
3114
3115
3116
3117

3118
3119
3120
3121
3122
3123
3124
3111
3112
3113
3114
3115
3116
3117

3118
3119
3120
3121
3122
3123
3124
3125







-
+







   exn
   (begin
     (debug:print 2 *default-log-port* "WARNING: error in accessing databases in get-youngest-run-db-mod-time: "
		  ((condition-property-accessor 'exn 'message) exn) " db-dir="dbdir ", exn=" exn)
     (current-seconds)) ;; something went wrong - just print an error and return current-seconds
   (common:max (map (lambda (filen)
		      (file-modification-time filen))
		    (glob (conc dbdir "/*.db*"))))))
		    (cons (conc dbdir "/main.db") (glob (conc dbdir "/?.db")))))))

(define (dashboard:monitor-changed? commondat tabdat)
  (let* ((run-update-time (current-seconds))
	 (monitor-db-path (dboard:tabdat-monitor-db-path tabdat))
	 (monitor-modtime (if (and monitor-db-path (common:file-exists? monitor-db-path))
			      (file-modification-time monitor-db-path)
			      -1)))
3342
3343
3344
3345
3346
3347
3348
3349

3350
3351
3352

3353
3354
3355
3356
3357
3358
3359
3343
3344
3345
3346
3347
3348
3349

3350
3351
3352

3353
3354
3355
3356
3357
3358
3359
3360







-
+


-
+







	(dwg (dboard:tabdat-drawing tabdat))
	(mtx (dboard:tabdat-runs-mutex tabdat))
	(vch (dboard:tabdat-view-changed tabdat)))
    (if (and cnv dwg vch)
	(begin
	  (vg:drawing-xoff-set! dwg (dboard:tabdat-xadj tabdat))
	  (vg:drawing-yoff-set! dwg (dboard:tabdat-yadj tabdat))
	  (mutex-lock! mtx)
	  ;; (mutex-lock! mtx)
	  (canvas-clear! cnv)
	  (vg:draw dwg tabdat)
	  (mutex-unlock! mtx)
	  ;; (mutex-unlock! mtx)
	  (dboard:tabdat-view-changed-set! tabdat #f)))))
  
;; doesn't work.
;;
;;(define (gotoescape tabdat escape)
;;  (or (dboard:tabdat-layout-update-ok tabdat)
;;      (escape #t)))
3629
3630
3631
3632
3633
3634
3635
3636

3637
3638
3639
3640
3641
3642

3643
3644
3645
3646
3647
3648
3649
3630
3631
3632
3633
3634
3635
3636

3637
3638
3639
3640
3641
3642

3643
3644
3645
3646
3647
3648
3649
3650







-
+





-
+







			       (width      (* timescale run-duration))
			       (graph-lly  (calc-y (/ -50 row-height)))
			       (graph-uly  (- (calc-y 0) canvas-margin))
			       (sec-per-50pt (/ 50 timescale))
			       )
			  ;; (print "timeoffset: " timeoffset " timescale: " timescale " run-duration: " (seconds->hr-min-sec run-duration) " width: " width " sec-per-50pt: " sec-per-50pt)
			  ;; (print "timescale: " timescale " timeoffset: " timeoffset " sizex: " sizex " originx: " originx)
			  (mutex-lock! mtx)
			  ;; (mutex-lock! mtx)
			  (vg:add-comp-to-lib runslib run-full-name runcomp)
			  ;; Have to keep moving the instantiated box as it is anchored at the lower left
			  ;; this should have worked for x in next statement? (maptime run-start)
			  ;; add 60 to make room for the graph
			  (vg:instantiate drawing "runslib" run-full-name run-full-name 8 (- (calc-y curr-run-start-row) (+ 5 graph-height run-to-run-margin)))
			  (mutex-unlock! mtx)
			  ;; (mutex-unlock! mtx)
			  ;; (set! run-start-row (+ max-row 2))
			  ;; (dboard:tabdat-start-row-set! tabdat (+ new-run-start-row 1))
			  ;; get tests in list sorted by event time ascending
			  (let testsloop ((test-ids  (car hierdat))              ;; loop on tests (NOTE: not items!)
					  (tests-tal (cdr hierdat))
					  (test-num  1))
			    (let ((iterated     (> (length test-ids) 1))
3740
3741
3742
3743
3744
3745
3746
3747

3748
3749

3750
3751
3752
3753
3754
3755
3756
3741
3742
3743
3744
3745
3746
3747

3748
3749

3750
3751
3752
3753
3754
3755
3756
3757







-
+

-
+







				 (ulx       (list-ref new-xtnts 2))
				 (uly       (list-ref new-xtnts 3))
				 (outln     (vg:make-rect-obj -5 lly ulx uly 
							      text: run-full-name
							      line-color:  (vg:rgb->number  255 0 255 a: 128))))
					;  (vg:components-get-extents d1 c1)))
			    ;; this is the box around the run
			    (mutex-lock! mtx)
			    ;; (mutex-lock! mtx)
			    (vg:add-obj-to-comp runcomp outln)
			    (mutex-unlock! mtx)
			    ;; (mutex-unlock! mtx)
			    ;; this is where we have enough info to place the graph
			    (dboard:graph commondat tabdat tab-num -5 (+ uly 10) ulx (+ uly graph-height 3) run-start run-end timescale maptime run-full-name canvas-margin)
			    (dboard:tabdat-max-row-set! tabdat (+ (dboard:tabdat-max-row tabdat)(quotient (+ graph-height 40 3) row-height)))
			    ;; (vg:instance-move drawing run-full-name 0 (dboard:tabdat-max-row tabdat))
			    ))
			;; end of the run handling loop 
			(if (not (dboard:tabdat-layout-update-ok tabdat))
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897






3898
3899
3900

3901
3902
3903


3904
3905
3906
3907
3908
3909
3910
3886
3887
3888
3889
3890
3891
3892






3893
3894
3895
3896
3897
3898
3899
3900

3901
3902


3903
3904
3905
3906
3907
3908
3909
3910
3911







-
-
-
-
-
-
+
+
+
+
+
+


-
+

-
-
+
+







	;;  (lambda ()
	   ;;  (dashboard:runs-tab-updater commondat 1))
	;; tab-num: 2)
	(iup:callback-set! *tim*
			   "ACTION_CB"
			   (lambda (time-obj)
			     (let ((update-is-running #f))
			     (mutex-lock! (dboard:commondat-update-mutex commondat))
			     (set! update-is-running (dboard:commondat-updating commondat))
			     (if (not update-is-running)
			     (dboard:commondat-updating-set! commondat #t))
			     (mutex-unlock! (dboard:commondat-update-mutex commondat))
			     (if (not update-is-running) ;; we know that the update was not running and we now have a lock on doing an update
			       ;; (mutex-lock! (dboard:commondat-update-mutex commondat))
			       (set! update-is-running (dboard:commondat-updating commondat))
			       (if (not update-is-running)
				   (dboard:commondat-updating-set! commondat #t))
			       ;; (mutex-unlock! (dboard:commondat-update-mutex commondat))
			       (if (not update-is-running) ;; we know that the update was not running and we now have a lock on doing an update
			     (begin
			     (dboard:common-run-curr-updaters commondat) ;; (dashboard:run-update commondat)
			     (mutex-lock! (dboard:commondat-update-mutex commondat))
			     ;; (mutex-lock! (dboard:commondat-update-mutex commondat))
			     (dboard:commondat-updating-set! commondat #f)
			     (mutex-unlock! (dboard:commondat-update-mutex commondat)))
				   ))
			     ;; (mutex-unlock! (dboard:commondat-update-mutex commondat))
			     )))
			     1))))
      ;; (debug:print 0 *default-log-port* "Starting updaters")
      (let ((th1 (make-thread (lambda ()
				(thread-sleep! 1)
				(dboard:common-run-curr-updaters commondat 0) ;; force update of summary tab 
				) "update buttons once"))
	    (th2 (make-thread iup:main-loop "Main loop")))

Modified db.scm from [a33d322bf7] to [d6b6de146b].

131
132
133
134
135
136
137
138

139
140
141
142
143
144
145
131
132
133
134
135
136
137

138
139
140
141
142
143
144
145







-
+







	   (debug:print-error 0 *default-log-port* " query " stmt " failed, params: " params ", error: " ((condition-property-accessor 'exn 'message) exn) ", exn=" exn)
	   (print-call-chain (current-error-port))
	   default)))
   (apply sqlite3:first-result db stmt params)))

(define (db:setup do-sync)
  (assert *toppath* "FATAL: db:setup called before launch:setup has been run.")
  (let* ((tmpdir (common:get-db-tmp-area)))
  (let* ((tmpdir (common:make-tmpdir-name *toppath* "")))
    (if (not *dbstruct-dbs*)
	(dbfile:setup do-sync *toppath* tmpdir)
	*dbstruct-dbs*)))

;; moved from dbfile
;;
;; ADD run-id SUPPORT
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
265
266
267
268
269
270
271







272
273
274
275
276
277
278







-
-
-
-
-
-
-







  (debug:print-error 0 *default-log-port* "   params: " params
		     ", error: "     ((condition-property-accessor 'exn 'message)   exn)
		     ", arguments: " ((condition-property-accessor 'exn 'arguments) exn)
		     ", location: "  ((condition-property-accessor 'exn 'location)  exn)
		     ))


;; NB// #f => return dbdir only
;;      (was planned to be;  zeroth db with name=main.db)
;; 
;; If run-id is #f return to create and retrieve the path where the db will live.
;;
(define db:dbfile-path common:get-db-tmp-area)

(define (db:set-sync db)
  (let ((syncprag (configf:lookup *configdat* "setup" "sychronous")))
    (sqlite3:execute db (conc "PRAGMA synchronous = " (or syncprag 0) ";")))) 


(define (db:get-last-update-time db)
  (let ((last-update-time #f))
465
466
467
468
469
470
471
472

473
474
475
476
477
478
479
458
459
460
461
462
463
464

465
466
467
468
469
470
471
472







-
+







    (max (get-mtime fname)
	 (get-mtime wal-file)
	 (get-mtime shm-file))))
	 
;; (define (db:all-db-sync dbstruct)
;;   (let* ((dbdat (db:open-db dbstruct #f db:initialize-main-db))
;; 	 (data-synced       0) ;; count of changed records
;;     (tmp-area       (common:get-db-tmp-area))
;;     (tmp-area       (common:make-tmpdir-name *toppath*))
;;     (dbfiles        (glob (conc tmp-area"/.mtdb/*.db")))
;;     (sync-durations (make-hash-table))
;;     (no-sync-db        (db:open-no-sync-db)))
;;     (for-each
;;      (lambda (file) ;; tmp db file
;;        (debug:print-info 3 *default-log-port* "file: " file)
;;        (let* ((fname       (conc (pathname-file file) ".db")) ;; fname is tmp db file
554
555
556
557
558
559
560
561

562
563
564
565
566
567
568
547
548
549
550
551
552
553

554
555
556
557
558
559
560
561







-
+







;;  'closeall     - close all opened dbs
;;  'schema       - attempt to apply schema changes
;;  run-ids: '(1 2 3 ...) or #f (for all)
;;
(define (db:multi-db-sync dbstruct . options)
  (let* (;; (dbdat       (db:open-db dbstruct #f dbfile:db-init-proc))
	 (data-synced 0) ;; count of changed records
	 (tmp-area       (common:get-db-tmp-area))
	 (tmp-area       (common:make-tmpdir-name *toppath* ""))
	 (old2new (member 'old2new options))
	 (dejunk (member 'dejunk options))
	 (killservers (member 'killservers options))
	 (src-area (if old2new *toppath* tmp-area))
	 (dest-area (if old2new tmp-area *toppath*))
	 (dbfiles        (if old2new (glob (conc *toppath* "/.mtdb/*.db"))
			     (glob (conc tmp-area "/.mtdb/*.db"))))
1252
1253
1254
1255
1256
1257
1258
1259

1260
1261
1262
1263
1264
1265
1266
1245
1246
1247
1248
1249
1250
1251

1252
1253
1254
1255
1256
1257
1258
1259







-
+








;;======================================================================
;; no-sync.db - small bits of data to be shared between servers
;;======================================================================

(define (db:get-dbsync-path)
  (case (rmt:transport-mode)
    ((http)(common:get-db-tmp-area))
    ((http)(common:make-tmpdir-name *toppath* ""))
    ((tcp) (conc *toppath*"/.mtdb"))
    ((nfs) (conc *toppath*"/.mtdb"))
    (else "/tmp/dunno-this-gonna-exist")))

;; This is needed for api.scm
(define (db:open-no-sync-db)
   (dbfile:open-no-sync-db (db:get-dbsync-path)))
1578
1579
1580
1581
1582
1583
1584
1585

1586
1587
1588
1589
1590
1591
1592
1571
1572
1573
1574
1575
1576
1577

1578
1579
1580
1581
1582
1583
1584
1585







-
+







    res))

;; TODO: Switch this to use max(update_time) from each run db? Then if using a server there is no disk traffic (using cachedb db) ???
;;
;; NOTE: This DOESN'T (necessarily) get the real run ids, but the number of the <number>.db!!

(define (db:get-changed-run-ids since-time)
  (let* ((dbdir      (db:dbfile-path)) ;; (configf:lookup *configdat* "setup" "dbdir"))
  (let* ((dbdir      (common:make-tmpdir-name *toppath* "")) ;; (configf:lookup *configdat* "setup" "dbdir"))
	 (alldbs     (glob (conc *toppath* "/.mtdb/[0-9]*.db*")))
	 (changed    (filter (lambda (dbfile)
			       (> (file-modification-time dbfile) since-time))
			     alldbs)))
    (delete-duplicates
     (map (lambda (dbfile)
	    (let* ((res (string-match ".*\\/(\\d+)\\.db*" dbfile)))
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249














2250
2251
2252
2253
2254
2255
2256
2225
2226
2227
2228
2229
2230
2231











2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252







-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+







		   '()
		   db 
		   qry
		   run-id
		   (or last-update 0))))))

(define (db:get-testinfo-state-status dbstruct run-id test-id)
  (let ((res            #f))
    (db:with-db dbstruct run-id #f
		(lambda (dbdat db)
		  (sqlite3:for-each-row
		   (lambda (run-id testname item-path state status)
		     ;; id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment
		     (set! res (vector test-id run-id testname state status -1 "" -1 -1 "" "-" item-path -1 "-" "-")))
		   db 
		   "SELECT run_id,testname,item_path,state,status FROM tests WHERE id=? and run_id=?;" 
		   test-id run-id)))
    res))
  (db:with-db
   dbstruct run-id #f
   (lambda (dbdat db)
     (let* ((res   #f)
	    (stmth (db:get-cache-stmth dbdat db "SELECT run_id,testname,item_path,state,status FROM tests WHERE id=? and run_id=?;")))
       (sqlite3:for-each-row
	(lambda (run-id testname item-path state status)
	  ;; id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment
	  (set! res (vector test-id run-id testname state status -1 "" -1 -1 "" "-" item-path -1 "-" "-")))
	;; db 
	;; "SELECT run_id,testname,item_path,state,status FROM tests WHERE id=? and run_id=?;"
	stmth
	test-id run-id)
       res))))

;; get a useful subset of the tests data (used in dashboard
;; use db:mintest-get-{id ,run_id,testname ...}
;;
(define (db:get-tests-for-run-mindata dbstruct run-id testpatt states statuses not-in)
  (db:get-tests-for-run dbstruct run-id testpatt states statuses #f #f not-in #f #f "id,run_id,testname,state,status,event_time,item_path" 0 #f))

2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649








2650
2651
2652
2653
2654
2655
2656
2631
2632
2633
2634
2635
2636
2637








2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652







-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+







;; 
(define (db:get-test-state-status-by-id dbstruct run-id test-id)
  (db:with-db
   dbstruct
   run-id
   #f
   (lambda (dbdat db)
     (let ((res   (cons #f #f)))
;;	   (stmth (db:get-cache-stmth dbdat db "SELECT state,status FROM tests WHERE id=?;")))
       (sqlite3:for-each-row ;; attemptnum added to hold pid of top process (not Megatest) controlling a test
	(lambda (state status)
	  (cons state status))
	db
	"SELECT state,status FROM tests WHERE id=? AND run_id=?;" ;; stmth try not compiling this one - yes, this fixed the bind issue
	test-id run-id)
     (let ((res   (cons #f #f))
	   (stmth (db:get-cache-stmth dbdat db "SELECT state,status FROM tests WHERE id=? AND run_id=?;")))
	  (sqlite3:for-each-row ;; attemptnum added to hold pid of top process (not Megatest) controlling a test
	   (lambda (state status)
	     (cons state status))
	   ;; db
	   stmth ;;"SELECT state,status FROM tests WHERE id=? AND run_id=?;" ;; stmth try not compiling this one - yes, this fixed the bind issue
	   test-id run-id)
       res))))

;; Use db:test-get* to access
;; Get test data using test_ids. NB// Only works within a single run!!
;;
(define (db:get-test-info-by-ids dbstruct run-id test-ids)
  (db:with-db
3726
3727
3728
3729
3730
3731
3732





3733
3734



3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747















3748
3749
3750
3751
3752
3753
3754
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738













3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760







+
+
+
+
+


+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+







				(delete-duplicates
				 (cons testname (hash-table-ref/default res tag '())))))
	     tags)))
	db
	"SELECT testname,tags FROM test_meta")
       (hash-table->alist res)))))

;; testmeta doesn't change, we can cache it for up too an hour

(define *db:testmeta-cache* (make-hash-table))
(define *db:testmeta-last-update* 0)

;; read the record given a testname
(define (db:testmeta-get-record dbstruct testname)
  (if (and (< (- (current-seconds) *db:testmeta-last-update*) 600)
	   (hash-table-exists? *db:testmeta-cache* testname))
      (hash-table-ref *db:testmeta-cache* testname)
  (let ((res   #f))
    (db:with-db
     dbstruct
     #f
     #f
     (lambda (dbdat db)
       (sqlite3:for-each-row
	(lambda (id testname author owner description reviewed iterated avg_runtime avg_disk tags jobgroup)
	  (set! res (vector id testname author owner description reviewed iterated avg_runtime avg_disk tags jobgroup)))
	db
	"SELECT id,testname,author,owner,description,reviewed,iterated,avg_runtime,avg_disk,tags,jobgroup FROM test_meta WHERE testname=?;"
	testname)
       res))))
      (let ((res   #f))
	(db:with-db
	 dbstruct
	 #f
	 #f
	 (lambda (dbdat db)
	   (sqlite3:for-each-row
	    (lambda (id testname author owner description reviewed iterated avg_runtime avg_disk tags jobgroup)
	      (set! res (vector id testname author owner description reviewed iterated avg_runtime avg_disk tags jobgroup)))
	    db
	    "SELECT id,testname,author,owner,description,reviewed,iterated,avg_runtime,avg_disk,tags,jobgroup FROM test_meta WHERE testname=?;"
	    testname)))
	(hash-table-set! *db:testmeta-cache* testname res)
	(set! *db:testmeta-last-update* (current-seconds))
	res)))

;; create a new record for a given testname
(define (db:testmeta-add-record dbstruct testname)
  (db:with-db dbstruct #f #t
	      (lambda (dbdat db)
		(sqlite3:execute 
		 db
4312
4313
4314
4315
4316
4317
4318
4319

4320
4321
4322
4323
4324
4325
4326
4318
4319
4320
4321
4322
4323
4324

4325
4326
4327
4328
4329
4330
4331
4332







-
+







          (debug:print 0 *default-log-port* "could not get lock for " from-db " from no-sync-db")
	  #f
        ))))

;; sync for filesystem local db writes
;;
(define (db:run-lock-and-sync no-sync-db)
  (let* ((tmp-area       (common:get-db-tmp-area))
  (let* ((tmp-area       (common:make-tmpdir-name *toppath* ""))
	 (dbfiles        (glob (conc tmp-area"/.mtdb/*.db")))
	 (sync-durations (make-hash-table)))
    ;; (debug:print-info 0 *default-log-port* "lock-and-sync, dbfiles: "dbfiles)
    (for-each
     (lambda (file)
       (let* ((fname (conc (pathname-file file) ".db"))
	      (fulln (conc *toppath*"/.mtdb/"fname))
4368
4369
4370
4371
4372
4373
4374
4375

4376
4377
4378
4379
4380
4381
4382
4374
4375
4376
4377
4378
4379
4380

4381
4382
4383
4384
4385
4386
4387
4388







-
+







  (thread-sleep! 0.05) ;; delay for startup
  (let ((legacy-sync        (common:run-sync?))
	(sync-stale-seconds (configf:lookup-number *configdat* "server" "sync-stale-seconds" default: 300))
 	(debug-mode         (debug:debug-mode 1))
 	(last-time          (current-seconds))     ;; last time through the sync loop
 	(no-sync-db         (db:open-no-sync-db))
 	(sync-duration      0)  ;; run time of the sync in milliseconds
	(tmp-area           (common:get-db-tmp-area)))
	(tmp-area           (common:make-tmpdir-name *toppath* "")))
    ;; Sync moved to http-transport keep-running loop
    (debug:print-info 2 *default-log-port* "Periodic copy-based sync thread started. syncer is copy-sync, tmp-area is " tmp-area)
    (debug:print-info 3 *default-log-port* "watchdog starting. syncer is copy-sync pid="(current-process-id));;  " this-wd-num="this-wd-num)
    
    (if (and legacy-sync (not *time-to-exit*))
 	(begin
 	  (debug:print-info 0 *default-log-port* "Server running, periodic copy-based sync started.")
4476
4477
4478
4479
4480
4481
4482
4483

4484
4485
4486
4487
4488
4489
4490
4482
4483
4484
4485
4486
4487
4488

4489
4490
4491
4492
4493
4494
4495
4496







-
+







 		      ;;
 		     
 		       (for-each
 			(lambda (subdb)
 			  (let* (;;(dbstruct (db:setup))
 				 (mtdb       (dbr:subdb-mtdb subdb))
 				 (mtpath     (db:dbdat-get-path mtdb))
 				 (tmp-area   (common:get-db-tmp-area))
 				 (tmp-area   (common:make-tmpdir-name *toppath* ""))
 				 (res        (db:sync-to-megatest.db dbstruct no-sync-db: no-sync-db))) ;; did we sync any data? If so need to set the db touched flag to keep the server alive
 			    (set! sync-duration (- (current-milliseconds) sync-start))
 			    (if (> res 0) ;; some records were transferred, keep the db alive
 				(begin
 				  (mutex-lock! *heartbeat-mutex*)
 				  (set! *db-last-access* (current-seconds))
 				  (mutex-unlock! *heartbeat-mutex*)
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4529
4530
4531
4532
4533
4534
4535

4536
4537
4538
4539
4540
4541
4542







-







		     (if (not *time-to-exit*) (loop))))
	       
;; 	       ;; time to exit, close the no-sync db here
;; 	       (db:no-sync-close-db no-sync-db stmt-cache)
	       (if (common:low-noise-print 30)
		   (debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*" pid="(current-process-id) )))) 
))


(define (std-exit-procedure)
  ;;(common:telemetry-log-close)
  (on-exit (lambda () 0)) ;; why is this here?
  ;;(debug:print-info 13 *default-log-port* "std-exit-procedure called; *time-to-exit*="*time-to-exit*)
  (let ((no-hurry  (if *time-to-exit* ;; hurry up
		       #f

Modified dbfile.scm from [4b315f3788] to [e1df0bf86e].

240
241
242
243
244
245
246

247

248
249
250
251
252
253
254
240
241
242
243
244
245
246
247

248
249
250
251
252
253
254
255







+
-
+







           #t
          )
          #f
  )
)

(define (dbfile:make-tmpdir-name areapath tmpadj)
  (let* ((area (pathname-file areapath))
  (let* ((dname (conc "/tmp/"(current-user-name)"/" (string-translate areapath "/" ".") tmpadj)))
         (dname (conc "/tmp/"(current-user-name)"/megatest_localdb/" area "/" (string-translate areapath "/" ".") tmpadj "/.mtdb")))
    (unless (directory-exists? dname)
      (create-directory dname #t))
    dname))

(define (dbfile:run-id->path apath run-id)
  (conc apath"/"(dbfile:run-id->dbname run-id)))

485
486
487
488
489
490
491
492

493
494
495
496
497
498
499
486
487
488
489
490
491
492

493
494
495
496
497
498
499
500







-
+







;; opens and returns handle and nothing else
;;
;; NOTE: this is already protected by mutex *no-sync-db-mutex*
;;
(define (dbfile:raw-open-no-sync-db dbpath)
  (if (not (file-exists? dbpath))
      (create-directory dbpath #t))
  (debug:print-info 0 *default-log-port* "Opening "dbpath"/no-sync.db")
  (debug:print-info 2 *default-log-port* "(dbfile:raw-open-no-sync-db: Opening "dbpath"/no-sync.db")
  (let* ((dbname    (conc dbpath "/no-sync.db"))
	 (db-exists (file-exists? dbname))
	 (init-proc (lambda (db)
		      (sqlite3:with-transaction
		       db
		       (lambda ()
			 ;; I have been having trouble with init of no-sync.db so
523
524
525
526
527
528
529
530
531



532
533
534
535
536
537




538
539
540
541
542
543
544
524
525
526
527
528
529
530


531
532
533
534
535




536
537
538
539
540
541
542
543
544
545
546







-
-
+
+
+


-
-
-
-
+
+
+
+







                                 dbname TEXT,
                                 mtversion TEXT,
                                 reason TEXT DEFAULT 'none',
                                   CONSTRAINT no_sync_processes UNIQUE (host,pid));"
			    ))))))
	 (on-tmp      (equal? (car (string-split dbpath "/")) "tmp"))
	 (db        (if on-tmp
			(dbfile:cautious-open-database dbname init-proc 0 "WAL" force-init: #t)
			(dbfile:cautious-open-database dbname init-proc 0 #f    force-init: #t)
			(dbfile:cautious-open-database dbname init-proc 1 "WAL" force-init: #t) ;; WAL MODE should use syncronous=1
			;; (dbfile:cautious-open-database dbname init-proc 0 #f    force-init: #t)
			(dbfile:cautious-open-database dbname init-proc 0 "MEMORY" force-init: #t) ;; Journal mode = memory is fastest?
			;; (sqlite3:open-database dbname)
			)))
    (if on-tmp	      ;; done in cautious-open-database
	(begin
	  (sqlite3:execute db "PRAGMA synchronous = 0;")
	  (sqlite3:set-busy-handler! db (sqlite3:make-busy-timeout 136000))))
    ;; (if on-tmp	      ;; done in cautious-open-database
    ;;    (begin
    ;; (sqlite3:execute db "PRAGMA synchronous = 0;") ;; why was this here when is is handled by cautious-open-database?
    (sqlite3:set-busy-handler! db (sqlite3:make-busy-timeout 136000)) ;; ))
    db))

;; mtest processes registry calls

(define (dbfile:insert-or-update-process nsdb dat)
  (let* ((host      (procinf-host dat))
	 (pid       (procinf-pid  dat))
578
579
580
581
582
583
584


585
586
587
588
589
590
591
592

593
594
595
596
597
598
599
600
601
602
603
604
605
606
607








608
609

610
611
612
613

614
615
616
617
618
619
620
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595

596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620

621
622
623
624

625
626
627
628
629
630
631
632







+
+







-
+















+
+
+
+
+
+
+
+

-
+



-
+







(define (dbfile:register-process nsdb host port pid starttime endtime status purpose dbname mtversion)
  (sqlite3:execute nsdb "INSERT INTO processes (host,port,pid,starttime,endtime,status,purpose,dbname,mtversion) VALUES (?,?,?,?,?,?,?,?,?);"
		   host port pid starttime endtime status purpose dbname mtversion))

(define (dbfile:set-process-status nsdb host pid newstatus)
  (sqlite3:execute nsdb "UPDATE processes SET status=? WHERE host=? AND pid=?;" newstatus host pid))

;; as sorted should be stable. can use to choose "winner"
;;
(define (dbfile:get-process-options nsdb purpose dbname)
  (sqlite3:fold-row
   ;; host port pid starttime status mtversion
   (lambda (res . row)
     (cons row res))
   '()
   nsdb
   "SELECT host,port,pid,starttime,endtime,status,mtversion FROM processes WHERE purpose=? AND dbname LIKE ? AND status='alive';"
   "SELECT host,port,pid,starttime,endtime,status,mtversion FROM processes WHERE purpose=? AND dbname LIKE ? AND status IN ('running','alive') ORDER BY starttime ASC,host,port;"
   purpose dbname))

(define (dbfile:get-process-info nsdb host pid)
  (let ((res (sqlite3:fold-row
	      ;; host port pid starttime status mtversion
	      (lambda (res . row)
		(cons row res))
	      '()
	      nsdb
	      "SELECT host,port,pid,starttime,endtime,status,purpose,dbname,mtversion FROM processes WHERE host=? AND pid=?;"
	      host pid)))
    (if (null? res)
	#f
	(car res))))

(define (dbfile:row->procinf row)
  (match row
   ((host port pid starttime endtime status mtversion)
    (make-procinf host: host port: port pid: pid starttime: starttime endtime: endtime status: status mtversion: mtversion))
   (else
    (debug:print 0 *default-log-port* "ERROR: row "row" did not match host,port,pid,starttime,endtime,status,mtversion")
    #f)))

(define (dbfile:set-process-done nsdb host pid reason)
  (sqlite3:execute nsdb "UPDATE processes SET status='ended',endtime=?,reason=? WHERE host=? AND pid=?;" (current-seconds) reason host pid)
  (sqlite3:execute nsdb "UPDATE processes SET status='done',endtime=?,reason=? WHERE host=? AND pid=?;" (current-seconds) reason host pid)
  (dbfile:cleanup-old-entries nsdb))

(define (dbfile:cleanup-old-entries nsdb)
  (sqlite3:execute nsdb "DELETE FROM process WHERE status='ended' AND endtime<?;" (- (current-seconds) (* 3600 48))))
  (sqlite3:execute nsdb "DELETE FROM process WHERE status='done' AND endtime<?;" (- (current-seconds) (* 3600 48))))

;; other no-sync functions

(define (dbfile:with-no-sync-db dbpath proc)
  (mutex-lock! *no-sync-db-mutex*)
  (let* ((already-open *no-sync-db*)
	 (db  (or already-open (dbfile:raw-open-no-sync-db dbpath)))
673
674
675
676
677
678
679

680
681
682
683
684

685
686
687
688


689



690
691
692
693
694
695
696
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704

705
706
707
708
709
710
711
712
713
714







+





+




+
+
-
+
+
+







;; transaction protected lock aquisition
;; either:
;;    fails    returns  (#f lock-creation-time identifier)
;;    succeeds (returns (#t lock-creation-time identifier)
;; use (db:no-sync-del! db keyname) to release the lock
;;
(define (db:no-sync-get-lock-with-id db keyname identifier)
  (debug:print 2 *default-log-port* "db:no-sync-get-lock-with-id: db: " db " keyname: " keyname " identifier: " identifier)
  (sqlite3:with-transaction
   db
   (lambda ()
     (condition-case
      (let* ((curr-val (db:no-sync-get/default db keyname #f)))
        (debug:print 2 *default-log-port* "db:no-sync-get-lock-with-id: curr-val: " curr-val)
	(if curr-val
	    (match (db:extract-time-identifier curr-val) ;; result->timestamp, identifier
	       ((timestamp . ident)
		(cons (equal? ident identifier) timestamp))
	       (else 
                (debug:print 2 *default-log-port* "db:no-sync-get-lock-with-id: malformed lock")
	       (else (cons #f 'malformed-lock)))  ;; lock malformed
                (cons #f 'malformed-lock)
                )
            )  ;; lock malformed
	    (let ((curr-sec (current-seconds))
		  (lock-value (if identifier
				  (conc (current-seconds)"+"identifier)
				  (current-seconds))))
	      (sqlite3:execute db "INSERT OR REPLACE INTO no_sync_metadat (var,val) VALUES(?,?);" keyname lock-value)
	      (cons #t curr-sec))))
      (exn (io-error)  (dbfile:print-err "ERROR: i/o error with no-sync db. Check permissions, disk space etc. and try again."))
1570
1571
1572
1573
1574
1575
1576
1577







1578


1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602

1603
1604








+
+
+
+
+
+
+
-
+
+
	 (result      (or stmth
			  (let* ((newstmth (sqlite3:prepare db stmt)))
			    ;; (db:hoh-set! stmt-cache db stmt newstmth)
			    (hash-table-set! stmt-cache stmt newstmth)
			    newstmth))))
    (mutex-unlock! *get-cache-stmth-mutex*)
    result))

;; (define *mutex-stmth-call* (make-mutex))
;; 
;; (define (db:with-mutex-for-stmth proc)
;;   (mutex-lock! *mutex-stmth-call*)
;;   (let* ((res (proc)))
;;     (mutex-unlock! *mutex-stmth-call*)
;;     res))
)

)

Modified dbmod.scm from [2faba88ece] to [918f6405bd].

29
30
31
32
33
34
35

36
37
38
39
40
41
42
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43







+







	
(import scheme
	chicken
	data-structures
	extras
	files

	format
	(prefix sqlite3 sqlite3:)
	matchable
	posix
	typed-records
	srfi-1
	srfi-18
	srfi-69
85
86
87
88
89
90
91
92
93
94



95
96
97
98
99
100


101
102
103
104
105
106
107
86
87
88
89
90
91
92



93
94
95
96
97
98
99


100
101
102
103
104
105
106
107
108







-
-
-
+
+
+




-
-
+
+








;;======================================================================
;; The cachedb one-db file per server method goes in here
;;======================================================================

;; NOTE: the r/w is now w/r, #t=db modified by query, #f=db NOT modified by query
(define (dbmod:with-db dbstruct run-id w/r proc params)
  (let* ((use-mutex (or (and w/r ;; use the mutex on queries that modify the db and for sync to disk
			     (> *api-process-request-count* 5)) ;; when writes are happening throttle more
			(> *api-process-request-count* 50)))
  (let* ((use-mutex w/r) ;; (or (and w/r ;; use the mutex on queries that modify the db and for sync to disk
			     ;; (> *api-process-request-count* 5)) ;; when writes are happening throttle more
			;; (> *api-process-request-count* 50)))
	 (dbdat     (dbmod:open-db dbstruct run-id (dbfile:db-init-proc)))
	 (dbh       (dbr:dbdat-dbh dbdat)) ;; this will be the cachedb handle
	 (dbfile    (dbr:dbdat-dbfile dbdat)))
    ;; if nfs mode do a sync if delta > 2
    (let* ((last-update (dbr:dbstruct-last-update dbstruct))
	   (sync-proc   (dbr:dbstruct-sync-proc dbstruct))
    #;(let* ((last-update (dbr:dbstruct-last-update dbstruct))
	   ;; (sync-proc   (dbr:dbstruct-sync-proc dbstruct))
	   (curr-secs   (current-seconds)))
      (if (> (- curr-secs last-update) 5)
	  (begin
	    (sync-proc last-update)

	    ;; MOVE THIS CALL TO INSIDE THE sync-proc CALL
	    (dbr:dbstruct-last-update-set! dbstruct curr-secs)
196
197
198
199
200
201
202
203

204
205
206
207
208
209
210
197
198
199
200
201
202
203

204
205
206
207
208
209
210
211







-
+







			    (tmpadj  "")       ;; add to tmp path
			    (syncdir 'todisk)) ;; todisk is used when caching in /tmp and writing data back to MTRAH
  (let* ((dbstruct     (or dbstruct-in (make-dbr:dbstruct areapath: areapath)))
	 (dbfname      (or dbfname-in (dbmod:run-id->dbfname run-id)))
	 (dbpath       (dbmod:get-dbdir dbstruct))             ;; directory where all the .db files are kept
	 (dbfullname   (conc dbpath"/"dbfname)) ;; (dbmod:run-id->full-dbfname dbstruct run-id))
	 (dbexists     (file-exists? dbfullname))
	 (tmpdir       (dbfile:make-tmpdir-name areapath tmpadj))
	 (tmpdir       (common:make-tmpdir-name areapath tmpadj))
	 (tmpdb        (let* ((fname (conc tmpdir"/"dbfname)))
			 fname))
	 (cachedb        (dbmod:open-cachedb-db init-proc
					    ;; (if (eq? (dbfile:cache-method) 'cachedb)
					    ;; 	#f
					    tmpdb
					    ;; )
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
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







-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-
-
-
+
+
+
+
+
+
+
-
-
+
+
+
-
-
-
-







    (dbr:dbstruct-dbfile-set!    dbstruct dbfullname)
    (dbr:dbstruct-dbtmpname-set! dbstruct tmpdb)
    (dbr:dbstruct-dbfname-set!   dbstruct dbfname)
    (dbr:dbstruct-sync-proc-set! dbstruct
				 (lambda (last-update)
				   (if *sync-in-progress*
				       (debug:print 3 *default-log-port* "WARNING: overlapping calls to sync to disk")
				       (let* ((syncer-logfile    (conc areapath"/logs/"dbfname"-syncer.log"))
					      (sync-cmd          (if (eq? syncdir 'todisk)
								     (conc "(NBFAKE_LOG="syncer-logfile" nbfake megatest -db2db -from "tmpdb" -to "dbfullname" -period 5 -timeout 10 > /dev/null 2&>1)&")
								     (conc "(NBFAKE_LOG="syncer-logfile" nbfake megatest -db2db -from "dbfullname" -to "tmpdb" -period 5 -timeout 10 > /dev/null 2&>1)&")))
					      (synclock-file     (conc dbfullname".lock"))
					      (syncer-running-file (conc dbfullname"-sync-running"))
					      (synclock-mod-time (if (file-exists? synclock-file)
								     (handle-exceptions
									 exn
								       #f
								       (file-modification-time synclock-file))
								     #f))
					      (thethread         (lambda ()
								   (thread-start!
								    (make-thread
								     (lambda ()
								       (set! *sync-in-progress* #t)
								       (debug:print-info "Running "sync-cmd)
								       (if (file-exists? syncer-running-file)
									   (debug:print-info 0 *default-log-port* "Syncer still running, skipping syncer start.")
									   (system sync-cmd))
								       (set! *sync-in-progress* #f)))))))
					 (if ((if (eq? syncdir 'todisk) < >) ;; use less than for todisk, greater than for from disk
					      (file-modification-time tmpdb)
					      (file-modification-time dbfullname))
					     (debug:print 4 *default-log-port* "Skipping sync, "tmpdb" older than "dbfullname)
					     (if synclock-mod-time
						 (if (> (- (current-seconds) synclock-mod-time) 20) ;; something wrong with sync, remove file
						     (begin
				       (begin
						       (handle-exceptions
							   exn
							 #f
                                                         (begin
                                                           (debug:print 0 *default-log-port* "Sync lock file " synclock-file "is older than 20 seconds ("  synclock-mod-time " seconds). Removing it")
					 ;; turn off writes - send busy or block?
					 ;; call db2db internally
					 ;; turn writes back on
					 ;;
					 (set! *api-halt-writes* #t) ;; do we need a mutex?
					 ;; (dbmod:db-to-db-sync src-db dest-db last-update (dbfile:db-init-proc) keys)
					 (debug:print-info 2 *default-log-port* "Internal sync running from "tmpdb" to "dbfullname)
							   (delete-file synclock-file)
                                                         )
					 (dbmod:db-to-db-sync tmpdb dbfullname last-update (dbfile:db-init-proc) keys)
					 (set! *api-halt-writes* #f)
					 ))))
                                                       )
						       (thethread))
						     (debug:print 0 *default-log-port* "Skipping sync, lockfile "synclock-file" found."))
						 (thethread)))))))
    ;; (dbmod:sync-tables tables #f db cachedb)
    ;; 
    (thread-sleep! 1) ;; let things settle before syncing in needed data
    (dbmod:sync-gasket tables #f cachedb db dbfullname 'fromdest keys) ;; ) ;; load into cachedb
    (dbr:dbstruct-last-update-set! dbstruct (+ (current-seconds) -10)) ;; should this be offset back in time by one second?
    dbstruct))

854
855
856
857
858
859
860
861

























































































826
827
828
829
830
831
832

833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921







-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
		   (sdb    (dbmod:safely-open-db src-db init-proc #t))
		   (ddb    (dbmod:safely-open-db dest-db init-proc d-wr))
		   (res    (dbmod:sync-gasket tables last-update sdb ddb dest-db 'todisk keys)))
	      (sqlite3:finalize! sdb)
	      (sqlite3:finalize! ddb)
	      res)))
      #f))
)

;; ======================================================================
;; dbstats
;;======================================================================

;; (define *dbstruct-dbs*         #f) ;; used to cache the dbstruct in db:setup. Goal is to remove this.
;; db stats
(define *db-stats*            (make-hash-table)) ;; hash of vectors < count duration-total >
(define *db-stats-mutex*      (make-mutex))

(define (rmt:print-db-stats)
  (let ((fmtstr "~40a~7-d~9-d~20,2-f")) ;; "~20,2-f"
    (debug:print 0 *default-log-port* "DB Stats\n========")
    (debug:print 0 *default-log-port* (format #f "~40a~8a~10a~10a" "Cmd" "Count" "TotTime" "Avg"))
    (for-each (lambda (cmd)
		(let* ((dat     (hash-table-ref *db-stats* cmd))
		       (count   (dbstat-cnt dat))
		       (tottime (dbstat-tottime dat)))
		  (debug:print 0 *default-log-port*
			       (format #f fmtstr cmd count tottime
				       (/ tottime count)))))
	      (sort (hash-table-keys *db-stats*)
		    (lambda (a b)
		      (> (dbstat-tottime (hash-table-ref *db-stats* a))
			 (dbstat-tottime (hash-table-ref *db-stats* b))))))))

(defstruct dbstat
  (cnt 0)
  (tottime 0))

(define (db:add-stats cmd run-id params delta)
  (let* ((modified-cmd (if (eq? cmd 'general-call)
			   (string->symbol (conc "general-call-" (car params)))
			   cmd))
	 (rec          (hash-table-ref/default *db-stats* modified-cmd #f)))
    (if (not rec)
	(let ((new-rec  (make-dbstat)))
	  (hash-table-set! *db-stats* modified-cmd new-rec)
	  (set! rec new-rec)))
    (dbstat-cnt-set! rec (+ (dbstat-cnt rec) 1))
    (dbstat-tottime-set! rec (+ (dbstat-tottime rec) delta))))
    


)


;; ATTIC

					 #;(let* ((syncer-logfile    (conc areapath"/logs/"dbfname"-syncer.log"))
					      (sync-cmd          (if (eq? syncdir 'todisk)
								     (conc "(NBFAKE_LOG="syncer-logfile" nbfake megatest -db2db -from "tmpdb" -to "dbfullname" -period 5 -timeout 10 > /dev/null 2&>1)&")
								     (conc "(NBFAKE_LOG="syncer-logfile" nbfake megatest -db2db -from "dbfullname" -to "tmpdb" -period 5 -timeout 10 > /dev/null 2&>1)&")))
					      (synclock-file     (conc dbfullname".lock"))
					      (syncer-running-file (conc dbfullname"-sync-running"))
					      (synclock-mod-time (if (file-exists? synclock-file)
								     (handle-exceptions
									 exn
								       #f
								       (file-modification-time synclock-file))
								     #f))
					      (thethread         (lambda ()
								   (thread-start!
								    (make-thread
								     (lambda ()
								       (set! *sync-in-progress* #t)
								       (debug:print-info "Running "sync-cmd)
								       (if (file-exists? syncer-running-file)
									   (debug:print-info 0 *default-log-port* "Syncer still running, skipping syncer start.")
									   (system sync-cmd))
								       (set! *sync-in-progress* #f)))))))
					 (if ((if (eq? syncdir 'todisk) < >) ;; use less than for todisk, greater than for from disk
					      (file-modification-time tmpdb)
					      (file-modification-time dbfullname))
					     (debug:print 4 *default-log-port* "Skipping sync, "tmpdb" older than "dbfullname)
					     (if synclock-mod-time
						 (if (> (- (current-seconds) synclock-mod-time) 20) ;; something wrong with sync, remove file
						     (begin
						       (handle-exceptions
							   exn
							 #f
                                                         (begin
                                                           (debug:print 0 *default-log-port* "Sync lock file " synclock-file "is older than 20 seconds ("  synclock-mod-time " seconds). Removing it")
							   (delete-file synclock-file)
                                                         )
                                                       )
						       (thethread))
						     (debug:print 0 *default-log-port* "Skipping sync, lockfile "synclock-file" found."))
						 (thethread))))

Modified docs/manual/Makefile from [759e8c25e6] to [4935d2a088].

35
36
37
38
39
40
41



42
43
44
45
46
47
48
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51







+
+
+







megatest_manual.html : megatest_manual.txt  *.txt installation.txt *png *.dot
	asciidoc  -b html5 -a icons -a iconsdir=$(DISPATH)/images/icons -a toc2 megatest_manual.txt
#	dos2unix megatest_manual.html

megatest_manual.pdf : megatest_manual.txt *.txt *png *.dot
	a2x -a toc -f pdf megatest_manual.txt

%.pdf : %.dot
	dot -Tpdf $*.dot -o$*.pdf

server.ps : server.dot
	dot -Tps server.dot > server.ps

client.ps : client.dot
	dot -Tps client.dot > client.ps

complex-itemmap.png : complex-itemmap.dot

Modified docs/manual/bisecting.png from [bd3e81c898] to [e53b1446a1].

cannot compute difference between binary files

Modified docs/manual/megatest-test-stages.png from [81fa066a5e] to [ca3b2d5d71].

cannot compute difference between binary files

Modified docs/manual/megatest_manual.html from [b4f1973471] to [be54eaf622].

1
2
3
4
5

6
7
8
9
10
11
12
1
2
3
4

5
6
7
8
9
10
11
12




-
+







<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="generator" content="AsciiDoc 9.0.0rc1">
<meta name="generator" content="AsciiDoc 10.2.0">
<title>The Megatest Users Manual</title>
<style type="text/css">
/* Shared CSS for AsciiDoc xhtml11 and html5 backends */

/* Default font. */
body {
  font-family: Georgia,serif;
3014
3015
3016
3017
3018
3019
3020
3021

3022
3023
3024
3025
3026
3027
3028
3014
3015
3016
3017
3018
3019
3020

3021
3022
3023
3024
3025
3026
3027
3028







-
+







itemmap foo/ bar/</pre>
</div></div>
<div class="listingblock">
<div class="title">example for backreference (eg: item <span class="monospaced">foo23/thud</span> will imply waiton&#8217;s item <span class="monospaced">num-23/bar/thud</span></div>
<div class="content monospaced">
<pre>#
# ## Example
# ## can use \{number} in replacement pattern to backreference a (capture) from matching pattern similar to sed or perl
# ## can use {number} in replacement pattern to backreference a (capture) from matching pattern similar to sed or perl
[requirements]
mode itemwait
# itemmap &lt;item pattern for this test&gt;  &lt;item replacement pattern for waiton test&gt;
itemmap foo(\d+)/ num-\1/bar/</pre>
</div></div>
<div class="listingblock">
<div class="title">example multiple itemmaps</div>
3756
3757
3758
3759
3760
3761
3762
3763

3764
3765
3766
3767
3756
3757
3758
3759
3760
3761
3762

3763
3764
3765
3766
3767







-
+




</div>
</div>
<div id="footnotes"><hr></div>
<div id="footer">
<div id="footer-text">
Version 1.5<br>
Last updated
 2023-01-23 11:18:29 EST
 2023-11-24 20:56:43 EST
</div>
</div>
</body>
</html>

Modified docs/manual/megatest_manual.pdf from [b233d5d322] to [4b6e5717f3].

cannot compute difference between binary files

Modified docs/manual/server.dot from [3e029f5fe5] to [0db71acc28].

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

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







+


+
+
+
+

+
+

-
+
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
-
-
-
+
-
-
+
+
-
-
+
-
-
+

-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
-
-
-
+
+
-
-
+
-
-
-
-
-
+
+
+
-
-
+
+
+
-
-
-
-
-
-
-
+
+
+
+
+

-
+
-
-
-
-
+
//     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/>.

digraph G {

    label = "Server Start Sequences";
    color=brown;
    rankdir="TB";

    subgraph cluster_1 {
	label="Find Prime Main Server";
	
        node [style=filled,shape=box];

	
	check_available_queue       -> remove_entries_over_10s_old;
	remove_entries_over_10s_old -> set_available [label="num_avail < 3"];
	remove_entries_over_10s_old -> exit [label="num_avail > 2"];

	set_available               -> delay_2s;
	delay_2s          -> check_place_in_queue;

	check_place_in_queue        -> "http:transport-launch" [label="at head"];
	check_place_in_queue        -> exit [label="not at head"];

	START;
        HaveServ [label="Look at .servinfo\nfiles for prime main"]; 
	AskPrime [label="Ask Prime for main"];
	PingPrime [label="Ping Prime"];
	AskPrime [label="Ask .servinfo prime for server"];
	StartServ [label="Launch Server Process for main.db"];
	
      	START -> HaveServ;
	HaveServ -> PingPrime;
	PingPrime -> AskPrime [label="Got response"];
	PingPrime -> StartServ [label="No reponse"];
	HaveServ -> StartServ [label="No files"];
	StartServ -> "Delay 2s" -> START;
        AskPrime -> DONE;
    }
	"client:login"              -> "server:shutdown" [label="login failed"];
	"server:shutdown"           -> exit;	

	subgraph cluster_2 {
    
    subgraph cluster_2 {
		"http:transport-launch"       -> "http:transport-run";
		"http:transport-launch"       -> "http:transport-keep-running";

	label="Starting non-prime server"
		"http:transport-keep-running" -> "tests running?";
		"tests running?"              -> "client:login" [label=yes];
        node [style=filled,shape=box];
	StartTCPServer [label="Start tcp server"];
		"tests running?"              -> "server:shutdown" [label=no];
		"client:login"                -> delay_5s [label="login ok"];
	FindPrimeMain [label="Find Prime Main Server"];
		delay_5s                      -> "http:transport-keep-running";
	}
	RegisterProcessViaPrime [label="Register process via prime server"];

	// start_server -> "server_running?";
	// "server_running?" -> set_available [label="no"];
	// "server_running?" -> delay_2s [label="yes"];
	// delay_2s -> "still_running?";
	// "still_running?" -> ping_server [label=yes];
	// "still_running?" -> set_available [label=no];
	// ping_server -> exit [label=alive];
	// ping_server -> remove_server_record [label=dead];
	StartTCPServer -> FindPrimeMain -> START;
	DONE -> RegisterProcessViaPrime -> READY;
    }

    subgraph cluster_3 {
	label="Start Prime Main"
        node [style=filled,shape=box];
	StartTCPServer_prime [label="Start tcp server"];
	GetServInfoFiles [label="Get servinfo files"];
	CreateServInfoFile [label="Create servinfo file"];
	RegisterProcess [label="Register process in no-sync (direct access)"];
	// remove_server_record -> set_available;
	// set_available -> avail_delay [label="delay 3s"];
	// avail_delay -> "first_in_queue?";
	ValidateServInfoFiles [label="Validate servinfo files with ping\nremove any files which do not respond to ping"];

	// 
	// "first_in_queue?" -> set_running [label=yes];
	CheckHost [label="Verify that current host matches\nexisting servinfo files host"]
	// set_running -> get_next_port -> handle_requests;
	// "first_in_queue?" -> "dead_entry_in_queue?" [label=no];
	// "dead_entry_in_queue?" -> "server_running?" [label=no];
	// "dead_entry_in_queue?" -> "remove_dead_entries" [label=yes];
	// remove_dead_entries -> "server_running?";
	StartTCPServer_prime -> GetServInfoFiles;
	GetServInfoFiles -> CreateServInfoFile [label="No servinfo\nfiles"];
	GetServInfoFiles -> ValidateServInfoFiles;
	// 
	// handle_requests -> start_shutdown [label="no traffic\nno running tests"];
	ValidateServInfoFiles -> CreateServInfoFile [label="No valid files"];
	CreateServInfoFile -> GetServInfoFiles [label="servinfo file created"];
	KeepRunning [label="READY"];
	// handle_requests -> shutdown_request;
	// start_shutdown -> shutdown_delay;
	// shutdown_request -> shutdown_delay;
	// shutdown_delay -> exit;
	
        label = "server:launch";
        color=brown;
		     
	ValidateServInfoFiles -> CheckHost;
	CheckHost -> RegisterProcess [label="Have valid\nservinfo files and same host"];
	RegisterProcess -> KeepRunning;
	CheckHost -> EXIT [label="Not same host"];	
    }

}
//     client_start_server -> start_server;
//     handle_requests -> read_write;
//     read_write -> handle_requests;
}

Modified docs/manual/server.png from [9e74f6d324] to [7aa70fd832].

cannot compute difference between binary files

Modified launch.scm from [470997d4b0] to [4674140b46].

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
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







-



















+




-
+















-
-
-
-
+
-
-







    ;; (tests:set-full-meta-info test-id run-id (calc-minutes) work-area)
    (tests:set-full-meta-info #f test-id run-id (calc-minutes) work-area 10)

    (let loop ((minutes   (calc-minutes))
	       (cpu-load  (alist-ref 'adj-core-load (common:get-normalized-cpu-load #f)))
	       (disk-free (get-df (current-directory)))
               (last-sync (current-seconds)))
      ;; (common:telemetry-log "zombie" (conc "launch:monitor-job - top of loop encountered at "(current-seconds)" with last-sync="last-sync))
      (let* ((over-time     (> (current-seconds) (+ last-sync update-period)))
             (new-cpu-load  (let* ((load  (alist-ref 'adj-core-load (common:get-normalized-cpu-load #f)))
                                   (delta (abs (- load cpu-load))))
                              (if (> delta 0.1) ;; don't bother updating with small changes
                                  load
                                  #f)))
             (new-disk-free (let* ((df    (if over-time ;; only get df every 30 seconds
                                              (get-df (current-directory))
                                              disk-free))
                                   (delta (abs (- df disk-free))))
                              (if (and (> df 0)
                                       (> (/ delta df) 0.1)) ;; (> delta 200) ;; ignore changes under 200 Meg
                                  df
                                  #f)))
             (do-sync       (or new-cpu-load new-disk-free over-time))

             (test-info   (rmt:get-test-state-status-by-id run-id test-id))
             (state       (car test-info));; (db:test-get-state test-info))
             (status      (cdr test-info));; (db:test-get-status test-info))
	     (killreq     (equal? state "KILLREQ"))
             (kill-reason  "no kill reason specified")
             (kill-job?    #f))
        ;; (common:telemetry-log "zombie" (conc "launch:monitor-job - decision time encountered at "(current-seconds)" with last-sync="last-sync" do-sync="do-sync" over-time="over-time" update-period="update-period))
        (cond
         ((test-get-kill-request run-id test-id)
         (killreq
          (set! kill-reason "KILLING TEST since received kill request (KILLREQ)")
          (set! kill-job? #t))
         ((and runtlim (> (- (current-seconds) start-seconds) runtlim))
          (set! kill-reason (conc "KILLING TEST DUE TO TIME LIMIT EXCEEDED! Runtime=" (- (current-seconds) start-seconds) " seconds, limit=" runtlim))
          (set! kill-job? #t))
         ((equal? status "DEAD")
          (tests:update-central-meta-info run-id test-id new-cpu-load new-disk-free (calc-minutes) #f #f)
          (rmt:set-state-status-and-roll-up-items run-id test-id 'foo "RUNNING" "n/a" "was marked dead; really still running.")
          ;;(set! kill-reason "KILLING TEST because it was marked as DEAD by launch:handle-zombie-tests (might indicate really overloaded server or else overzealous setup.deadtime)") ;; MARK RUNNING
          (set! kill-job? #f)))

        (debug:print 4 *default-log-port* "cpu: " new-cpu-load " disk: " new-disk-free " last-sync: " last-sync " do-sync: " do-sync)
        (if (common:low-noise-print 600 "run zombie") ;; every five minutes is plenty
	    (launch:handle-zombie-tests run-id))
        (when do-sync
          ;;(with-output-to-file (conc (getenv "MT_TEST_RUN_DIR") "/last-loadinfo.log" #:append)
          ;;  (lambda () (pp (list (current-seconds) new-cpu-load new-disk-free (calc-minutes)))))
          ;; (common:telemetry-log "zombie" (conc  "launch:monitor-job - dosync started at "(current-seconds)))
          (tests:update-central-meta-info run-id test-id new-cpu-load new-disk-free (calc-minutes) #f #f)
          (tests:update-central-meta-info run-id test-id new-cpu-load new-disk-free (calc-minutes) #f #f))
          ;; (common:telemetry-log "zombie" (conc "launch:monitor-job - dosync finished at "(current-seconds)))
	  )
        
	(if kill-job? 
	    (begin
              (debug:print-info 0 *default-log-port* "proceeding to kill test: "kill-reason)
	      (mutex-lock! m)
	      ;; NOTE: The pid can change as different steps are run. Do we need handshaking between this
	      ;;       section and the runit section? Or add a loop that tries three times with a 1/4 second
329
330
331
332
333
334
335
336

337
338

339
340
341
342
343




344
345
346
347
348
349
350
324
325
326
327
328
329
330

331
332

333





334
335
336
337
338
339
340
341
342
343
344







-
+

-
+
-
-
-
-
-
+
+
+
+







		      (debug:print-error 0 *default-log-port* "Nothing to kill, pid1=" pid1 ", pid2=" pid2)
		      (tests:test-set-status! run-id test-id "KILLED"  "FAILED TO KILL" (conc (args:get-arg "-m")" "kill-reason) #f) ;; BB ADDED kill-reason -- confirm OK with Matt
		      )))
	      (mutex-unlock! m)
	      ;; no point in sticking around. Exit now. But run end of run before exiting?
              (launch:end-of-run-check run-id)
	      (exit)))
	(if (hash-table-ref/default misc-flags 'keep-going #f)
	(if (hash-table-ref/default misc-flags 'keep-going #f)  ;; keep originals for cpu-load and disk-free unless they change more than the allowed delta
	    (begin
	      (thread-sleep! 3) ;; (+ 3 (random 6))) ;; add some jitter to the call home time to spread out the db accesses
	      (thread-sleep! 6) ;; was 3
	      (if (hash-table-ref/default misc-flags 'keep-going #f)  ;; keep originals for cpu-load and disk-free unless they change more than the allowed delta
		  (loop (calc-minutes)
                        (or new-cpu-load cpu-load)
                        (or new-disk-free disk-free)
                        (if do-sync (current-seconds) last-sync)))))))
	      (loop (calc-minutes)
		    (or new-cpu-load cpu-load)
		    (or new-disk-free disk-free)
		    (if do-sync (current-seconds) last-sync))))))
    (tests:update-central-meta-info run-id test-id (get-cpu-load) (get-df (current-directory))(calc-minutes) #f #f))) ;; NOTE: Checking twice for keep-going is intentional


(define (launch:execute encoded-cmd)
  (let* ((cmdinfo    (common:read-encoded-string encoded-cmd))
	 (tconfigreg #f))
    (setenv "MT_CMDINFO" encoded-cmd)

Modified megatest-version.scm from [5a374d2bf1] to [db025c31f0].

16
17
18
19
20
21
22
23

16
17
18
19
20
21
22

23







-
+
;;     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

;; Always use two or four digit decimal
;; 1.01, 1.02...1.10,1.11,1.1101 ... 1.99,2.00..

;; (declare (unit megatest-version))

(define megatest-version 1.8017)
(define megatest-version 1.8022)

Modified megatest.scm from [f7c0fef20e] to [4f7c279d10].

966
967
968
969
970
971
972
973

974

975
976
977
978
979
980
981
966
967
968
969
970
971
972

973
974
975
976
977
978
979
980
981
982







-
+

+







    (let* (;; (run-id     (args:get-arg "-run-id"))
	   (dbfname    (args:get-arg "-db"))
	   (tl         (launch:setup))
	   (keys       (keys:config-get-fields *configdat*)))
      (case (rmt:transport-mode)
	((tcp)
	 (let* ((timeout    (server:expiration-timeout)))
	   (debug:print 0 *default-log-port* "INFO: Running using tcp method with server timeout of "timeout)
	   (debug:print 0 *default-log-port* "INFO: Starting server for " dbfname " using tcp method with server timeout of "timeout)
	   (tt-server-timeout-param timeout)
	   (thread-start! (make-thread api:print-db-stats "print-db-stats"))
	   (if dbfname
	       (tt:start-server tl #f dbfname api:tcp-dispatch-request-make-handler keys)
	       (begin
		 (debug:print 0 *default-log-port* "ERROR: transport mode is tcp - -db is required.")
		 (exit 1)))))
	(else (debug:print 0 *default-log-port* "ERROR: rmt:transport-mode value not recognised "(rmt:transport-mode))))
      (set! *didsomething* #t)))
1089
1090
1091
1092
1093
1094
1095




1096
1097
1098
1099
1100
1101
1102
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107







+
+
+
+







                ) 
              )
              sfiles
            )
          )
       )
       dbfiles
     )
     ;; remove this db, because otherwise metadata contains records for old servers, and this causes a problem with db:no-sync-get-lock-with-id.
     (if (file-exists? (conc *toppath* "/.mtdb/no-sync.db"))
       (delete-file (conc *toppath* "/.mtdb/no-sync.db"))
     )
     (set! *didsomething* #t)
     (exit)  
  )
)

;;======================================================================
2130
2131
2132
2133
2134
2135
2136
2137

2138
2139

2140
2141
2142
2143
2144
2145
2146
2135
2136
2137
2138
2139
2140
2141

2142
2143

2144
2145
2146
2147
2148
2149
2150
2151







-
+

-
+







             (begin 
             (debug:print-info 1 *default-log-port* "Missing required argument -source <archive path>")
             (exit 1)))
         (if (common:file-exists? (conc  *toppath* "/megatest.db"))
             (begin  
               (debug:print-info 1 *default-log-port* "File " (conc  *toppath* "/megatest.db") " already exists. Please remove it before trying to replicate db")
               (exit 1)))
         (if (and (common:get-db-tmp-area) (> (length (directory   (common:get-db-tmp-area) #f)) 0))
         (if (and (common:make-tmpdir-name *toppath* "") (> (length (directory   (common:make-tmpdir-name *toppath* "") #f)) 0))
           (begin
           (debug:print-info 1 *default-log-port* (common:get-db-tmp-area) " not empty. Please remove it before trying to replicate db")
           (debug:print-info 1 *default-log-port* (common:make-tmpdir-name *toppath* "") " not empty. Please remove it before trying to replicate db")
           (exit 1)))    
          ;; check if timestamp 
          (let* ((source (args:get-arg "-source"))
                (src     (if (not (equal? (substring source 0 1) "/"))
                             (conc (current-directory) "/" source)
                             source))
                (ts (if (args:get-arg "-time-stamp")   (args:get-arg "-time-stamp") "latest")))

Modified rmt.scm from [64f3d622e8] to [c3f010a183].

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
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







-
-
+
-
-
-
+
-
-
-
+
-
-
+
-
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
+
-
-
-
+
+
-
-
-
-
+
+
+
+


-
-

-
+

-
-
+
+
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
-
-
-
-
-
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-







     ((tcp) (tt:make-remote areapath))
     (else #f)))

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

(define *send-receive-mutex* (make-mutex)) ;; should have separate mutex per run-id

;; RA => e.g. usage (rmt:send-receive 'get-var #f (list varname))
;;
;; how to make area-dat
(define (rmt:send-receive cmd rid params #!key (attemptnum 1)(area-dat #f)) ;; start attemptnum at 1 so the modulo below works as expected
  (assert *toppath* "FATAL: rmt:send-receive called with *toppath* not set.")

(define (rmt:set-ttdat areapath ttdat)
  (if (not (eq? (rmt:transport-mode) 'nfs))
      (begin
	(if (> attemptnum 2)
  (if ttdat
	    (debug:print 0 *default-log-port* "INFO: attemptnum in rmt:send-receive is " attemptnum))
	
      ttdat
	(cond
	 ((> attemptnum 2) (thread-sleep! 0.05))
	 ((> attemptnum 10) (thread-sleep! 0.5))
	 ((> attemptnum 20) (thread-sleep! 1)))
	
      (let* ((newremote  (make-and-init-remote areapath)))
	;; I'm turning this off, it may make sense to move it
	;; into http-transport-handler
	(if (and (> attemptnum 5) (= 0 (modulo attemptnum 15)))  
	    (begin
	      (debug:print 0 *default-log-port* "ERROR: can't connect to server, trying to start a server.")
	      (case (rmt:transport-mode)
		((http)
		 (server:run *toppath*)
		 (thread-sleep! 3))
		(else
	(set! *ttdat* newremote)
		 (thread-sleep! 1) ;; for tcp the server is started by routines in tcp-transportmod. For nfs there is no server
		 ))))))
  
	newremote)))

  ;; 1. check if server is started IFF cmd is a write OR if we are not on the homehost, store in runremote
  ;; 2. check the age of the connections. refresh the connection if it is older than timeout-20 seconds.
  ;; 3. do the query, if on homehost use local access
  ;;
;; NB// area-dat replaced by ttdat
;; 
(define (rmt:send-receive cmd run-id params #!key (attemptnum 1)(ttdat #f))
  (assert *toppath* "FATAL: rmt:send-receive called with *toppath* not set.")
  (let* ((start-time    (current-seconds)) ;; snapshot time so all use cases get same value
         (areapath      *toppath*);; TODO - resolve from dbstruct to be compatible with multiple areas
	 (runremote     (or area-dat
			    *runremote*))
         (attemptnum    (+ 1 attemptnum))
	 (readonly-mode (rmtmod:calc-ro-mode runremote *toppath*))
	 (readonly-mode (rmtmod:calc-ro-mode ttdat *toppath*))
	 (testsuite     (common:get-testsuite-name))
	 (mtexe         (common:find-local-megatest)))

	 (mtexe         (common:find-local-megatest))
	 (dbfname       (conc (dbfile:run-id->dbnum run-id)".db"))
    (case (rmt:transport-mode)
      ((http)(http-transport-handler runremote cmd rid params attemptnum area-dat areapath readonly-mode))
      ((tcp) (tcp-transport-handler  runremote cmd rid params attemptnum area-dat areapath readonly-mode testsuite mtexe))
      ((nfs) (nfs-transport-handler  runremote cmd rid params attemptnum area-dat areapath readonly-mode testsuite mtexe))
      )))
	 (ttdat         (rmt:set-ttdat areapath ttdat))
	 (conn          (tt:get-conn ttdat dbfname))
	 (is-main       (equal? dbfname "main.db")) ;; why not (not run-id) ?
	 (server-start-proc (if is-main
				#f
				(lambda ()
				  ;; (debug:print-info 0 *default-log-port* "starting server for dbfname: "dbfname)
				  (rmt:start-server ;; tt:server-process-run
				   areapath
				   testsuite ;; (dbfile:testsuite-name)
				   mtexe
				   run-id)))))
    ;; here we look at ttdat, if dbfname is NOT main.db we check that a conn exists for it
    ;; and if there is no conn we first send a request to the main.db server to start a
    ;; server for the dbfname.
    #;(if (and (not is-main)(not conn)) ;; no existing connection to non-main server, call in a start up request
	(begin
	  (server-start-proc)
	  (thread-sleep! 1)))
    (tt:handler ttdat cmd run-id params attemptnum readonly-mode dbfname testsuite mtexe server-start-proc)))

;; KEEP THIS HERE FOR A WHILE, WE MAY WANT TO RESURECT IT
(define (nfs-transport-handler  runremote cmd run-id params attemptnum area-dat areapath readonly-mode testsuite mtexe)
  (let* ((keys     (common:get-fields *configdat*))
	 (dbstruct (dbmod:nfs-get-dbstruct run-id keys (dbfile:db-init-proc) areapath tmpadj: "/dashboard")))
    (api:dispatch-request dbstruct cmd run-id params)))
	 
;; (define (nfs-transport-handler  runremote cmd run-id params attemptnum area-dat areapath readonly-mode testsuite mtexe)
;;   (let* ((keys     (common:get-fields *configdat*))
;; 	 (dbstruct (dbmod:nfs-get-dbstruct run-id keys (dbfile:db-init-proc) areapath tmpadj: "/dashboard")))
;;     (api:dispatch-request dbstruct cmd run-id params)))
	
(define (tcp-transport-handler runremote cmd run-id params attemptnum area-dat areapath readonly-mode testsuite mtexe)
  (if (not runremote)
      (let* ((newremote  (make-and-init-remote areapath)))
	(set! *runremote* newremote)
	(set! runremote newremote)))
  (let* ((dbfname (conc (dbfile:run-id->dbnum run-id)".db"))) ;;(dbfile:run-id->path areapath run-id)))
    (tt:handler runremote cmd run-id params attemptnum area-dat areapath readonly-mode dbfname testsuite mtexe)))
	
(define (rmt:print-db-stats)
  (let ((fmtstr "~40a~7-d~9-d~20,2-f")) ;; "~20,2-f"
    (debug:print 18 *default-log-port* "DB Stats\n========")
    (debug:print 18 *default-log-port* (format #f "~40a~8a~10a~10a" "Cmd" "Count" "TotTime" "Avg"))
    (for-each (lambda (cmd)
		(let ((cmd-dat (hash-table-ref *db-stats* cmd)))
		  (debug:print 18 *default-log-port* (format #f fmtstr cmd (vector-ref cmd-dat 0) (vector-ref cmd-dat 1) (/ (vector-ref cmd-dat 1)(vector-ref cmd-dat 0))))))
	      (sort (hash-table-keys *db-stats*)
		    (lambda (a b)
		      (> (vector-ref (hash-table-ref *db-stats* a) 0)
			 (vector-ref (hash-table-ref *db-stats* b) 0)))))))

(define (rmt:get-max-query-average run-id)
  (mutex-lock! *db-stats-mutex*)
  (let* ((runkey (conc "run-id=" run-id " "))
	 (cmds   (filter (lambda (x)
			   (substring-index runkey x))
			 (hash-table-keys *db-stats*)))
	 (res    (if (null? cmds)
165
166
167
168
169
170
171
172

173
174
175
176
177
178
179
139
140
141
142
143
144
145

146
147
148
149
150
151
152
153







-
+







				 (cons 'none 0))
			     (loop (car tal)(cdr tal) newmax-cmd currmax)))))))
    (mutex-unlock! *db-stats-mutex*)
    res))

(define (rmt:open-qry-close-locally cmd run-id params #!key (remretries 5))
  (let* ((qry-is-write    (not (member cmd api:read-only-queries)))
	 (db-file-path    (db:dbfile-path)) ;;  0))
	 (db-file-path    (common:make-tmpdir-name *toppath* "")) ;;  0))
	 (dbstructs-local (db:setup #t))
	 (read-only       (not (file-write-access? db-file-path)))
	 (start           (current-milliseconds))
	 (resdat          (if (not (and read-only qry-is-write))
			      (let ((v (api:execute-requests dbstructs-local (vector (symbol->string cmd) params))))
			;;	(handle-exceptions ;; there has been a long history of receiving strange errors from values returned by the client when things go wrong..
			;;	 exn               ;;  This is an attempt to detect that situation and recover gracefully
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
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







-
+
















-
-
+
+












-
+




-
+







	      #f))
	(begin
	  ;; (rmt:update-db-stats run-id cmd params duration)
	  ;; mark this run as dirty if this was a write, the watchdog is responsible for syncing it
	  (if qry-is-write
	      (let ((start-time (current-seconds)))
		(mutex-lock! *db-multi-sync-mutex*)
/		(set! *db-last-access* start-time)  ;; THIS IS PROBABLY USELESS? (we are on a client)
		(set! *db-last-access* start-time)  ;; THIS IS PROBABLY USELESS? (we are on a client)
                (mutex-unlock! *db-multi-sync-mutex*)))))
    res))

;;======================================================================
;;
;; A C T U A L   A P I   C A L L S  
;;
;;======================================================================

;;======================================================================
;;  S E R V E R
;;======================================================================

(define (rmt:kill-server run-id)
  (rmt:send-receive 'kill-server run-id (list run-id)))

(define (rmt:start-server run-id)
  (rmt:send-receive 'start-server 0 (list run-id)))
(define (rmt:start-server areapath testsuite mtexe run-id) ;; run on main.db server
  (rmt:send-receive 'start-server #f (list areapath testsuite mtexe run-id)))

;;======================================================================
;;  M I S C
;;======================================================================

(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 runremote)
;;   (rmt:send-receive-no-auto-client-setup runremote 'login 0 (list *toppath* megatest-version (client:get-signature))))
;;   (rmt:send-receive-no-auto-client-setup runremote 'login #f (list *toppath* megatest-version (client:get-signature))))


;; given a hostname, return a pair of cpu load and update time representing latest intelligence from tests running on that host
(define (rmt:get-latest-host-load hostname)
  (rmt:send-receive 'get-latest-host-load 0 (list hostname)))
  (rmt:send-receive 'get-latest-host-load #f (list hostname)))

(define (rmt:sdb-qry qry val run-id)
  ;; add caching if qry is 'getid or 'getstr
  (rmt:send-receive 'sdb-qry run-id (list qry val)))

;; NOT COMPLETED
(define (rmt:runtests user run-id testpatt params)

Modified runs.scm from [77337ff0b0] to [66517b0c3e].

2062
2063
2064
2065
2066
2067
2068
2069

2070
2071
2072
2073
2074
2075
2076
2062
2063
2064
2065
2066
2067
2068

2069
2070
2071
2072
2073
2074
2075
2076







-
+







    ;; Here is where the test_meta table is best updated
    ;; Yes, another use of a global for caching. Need a better way?
    ;;
    ;; There is now a single call to runs:update-all-test_meta and this 
    ;; per-test call is not needed. Given the delicacy of the move to 
    ;; v1.55 this code is being left in place for the time being.
    ;;
    (if (not (hash-table-ref/default *test-meta-updated* test-name #f))
    (if (not (hash-table-exists? *test-meta-updated* test-name))
        (begin
          (hash-table-set! *test-meta-updated* test-name #t)
          (runs:update-test_meta test-name test-conf)))
    
    ;; itemdat => ((ripeness "overripe") (temperature "cool") (season "summer"))
    (let* ((new-test-path (string-intersperse (cons test-path (map cadr itemdat)) "/"))
	   (test-id       (rmt:get-test-id run-id test-name item-path))

Modified tasks.scm from [4adbc308eb] to [93c938d59a].

82
83
84
85
86
87
88
89

90
91
92
93
94
95
96
82
83
84
85
86
87
88

89
90
91
92
93
94
95
96







-
+







	     (debug:print 5 *default-log-port* " exn=" (condition->list exn))
	     (thread-sleep! 1)
	     (tasks:open-db numretries (- numretries 1)))
	   (begin
	     (print-call-chain (current-error-port))
	     (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
	     (debug:print 5 *default-log-port* " exn=" (condition->list exn))))
       (let* ((dbpath        (db:dbfile-path )) ;; (tasks:get-task-db-path))
       (let* ((dbpath        (common:make-tmpdir-name *toppath* "")) ;; (tasks:get-task-db-path))
	      (dbfile       (conc dbpath "/monitor.db"))
	      (avail        (tasks:wait-on-journal dbpath 10)) ;; wait up to about 10 seconds for the journal to go away
	      (exists       (common:file-exists? dbpath))
	      (write-access (file-write-access? dbpath))
	      (mdb          (cond ;; what the hek is *toppath* doing here?
			     ((and (string? *toppath*)(file-write-access? *toppath*))
			      (sqlite3:open-database dbfile))

Modified tcp-transportmod.scm from [a1fcad65c5] to [fb9929d164].

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
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







+














-
+
+
+
+




-
+

+
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+


-
+

-
+
+
+
+



-
+














-
+


+




+
-
+






-
+

+
-
+

-
+

-
+

-
+
+
+

+
-
+

+








;; parameters
;;
(define tt-server-timeout-param (make-parameter 600))

;; make ttdat visible
(define *server-info* #f)
(define *server-run*  #t)

(define (tt:make-remote areapath)
  (make-tt areapath: areapath))

;; 1 ... or #f
;; and check that dbfname matches. FIXME: the propagation of dbfname and run-id
;; might not make the best sense
;;
(define (tt:valid-run-id run-id dbfname)
  (and (or (number? run-id)
	   (not run-id))
       (equal? (dbfile:run-id->dbfname run-id) dbfname)))

(tcp-buffer-size 2048)
;; (max-connections 4096) 
;; (max-connections 4096)

(define (tt:get-conn ttdat dbfname)
  (hash-table-ref/default (tt-conns ttdat) dbfname #f))

;; do all the busy work of finding and setting up conn for
;; connecting to a server
;; 
(define (tt:client-connect-to-server ttdat dbfname run-id testsuite)
(define (tt:client-connect-to-server ttdat dbfname run-id testsuite server-start-proc)
  (assert (tt:valid-run-id run-id dbfname) "FATAL: invalid run-id "run-id)
  (debug:print-info 2 *default-log-port* "tt:client-connect-to-server " dbfname " " run-id)
  (let* ((conn (hash-table-ref/default (tt-conns ttdat) dbfname #f))
	 (server-start-proc (lambda ()
			      (tt:server-process-run
			       (tt-areapath ttdat)
			       testsuite ;; (dbfile:testsuite-name)
			       (common:find-local-megatest)
			       run-id))))
  (let* ((conn              (tt:get-conn ttdat dbfname))
	 (server-start-proc (or server-start-proc
				(lambda ()
				  (assert (equal? dbfname "main.db") ;; only main.db is started here
					  "FATAL: called server-start-proc for db other than main.db")
				  (tt:server-process-run
				   (tt-areapath ttdat)
				   testsuite ;; (dbfile:testsuite-name)
				   (common:find-local-megatest)
				   run-id)))))
    (if conn
	(begin 
          ; (debug:print-info 0 *default-log-port* "already connected to the server")
          (debug:print-info 2 *default-log-port* "already connected to a server")
           conn) ;; we are already connected to the server
	(let* ((sdat (tt:get-current-server-info ttdat dbfname)))
	(let* ((sdats (tt:get-server-info-sorted ttdat dbfname))
	       (sdat  (if (null? sdats)
			  #f
			  (car sdats))))
	  (match sdat
	    ((host port start-time server-id pid dbfname2 servinffile)
	     (assert (equal? dbfname dbfname2) "FATAL: read server info from wrong file.")
             ;(debug:print-info 0 *default-log-port* "in match servinffile:" servinffile)
             (debug:print-info 2 *default-log-port* "no conn - in match servinffile:" servinffile)
	     (let* ((host-port (conc host":"port))
		    (conn (make-tt-conn
			   host: host
			   port: port
			   host-port: host-port
			   dbfname: dbfname
			   servinf-file: servinffile
			   server-id: server-id
			   server-start: start-time
			   pid: pid)))
	       ;; verify we can talk to this server
	       (let* ((result   (tt:timed-ping host port server-id))
		      (ping-res (car result))
		      (ping     (cdr result)))
                 (debug:print-info 0 *default-log-port* "ping time: " ping)
                 (debug:print-info 2 *default-log-port* "host " host " port " port " ping time: " ping " result " ping-res)
		 (case ping-res
		   ((running)
                    (debug:print-info 2 *default-log-port* "Setting conn = " conn " in hash table")
		    (hash-table-set! (tt-conns ttdat) dbfname conn) ;;; is this ok to save before validating that the connection is good?
		    conn)
		   ((starting)
		    (thread-sleep! 0.5)
                    (debug:print-info 0 *default-log-port* "server for " dbfname " is in starting state, retrying connect")
		    (tt:client-connect-to-server ttdat dbfname run-id testsuite))
		    (tt:client-connect-to-server ttdat dbfname run-id testsuite server-start-proc))
		   (else
		    (let* ((curr-secs (current-seconds)))
		      ;; rm the (last server) would go here
		      (if (> (- curr-secs (tt-last-serv-start ttdat)) 10)
			  (begin
			    (tt-last-serv-start-set! ttdat curr-secs)
			    (server-start-proc))) ;; start server if 30 sec since last attempt
			    (server-start-proc))) ;; start server if 10 sec since last attempt
		      (thread-sleep! 1)
                      (debug:print-info 0 *default-log-port* "server ping result was neither running nor starting. Retrying connect")
		      (tt:client-connect-to-server ttdat dbfname run-id testsuite)))))))
		      (tt:client-connect-to-server ttdat dbfname run-id testsuite server-start-proc)))))))
	    (else ;; no good server found, if haven't started server in > 5 secs, start another
	     (if (> (- (current-seconds) (tt-last-serv-start ttdat)) 5) ;; BUG - grow this number really do not want to swamp the machine with servers
	     (if (> (- (current-seconds) (tt-last-serv-start ttdat)) 3) ;; BUG - grow this number really do not want to swamp the machine with servers
		 (begin
		   (debug:print-info 0 *default-log-port* "No server found. Starting one for run-id "run-id" in dbfile "dbfname)
		   (debug:print-info 0 *default-log-port* "Starting server for "dbfname)
		   (server-start-proc)
		   (tt-last-serv-start-set! ttdat (current-seconds))))
		   (tt-last-serv-start-set! ttdat (current-seconds))
                   (thread-sleep! 3)
                   ))
	     (thread-sleep! 1)
             (debug:print-info 0 *default-log-port* "Connect to server for " dbfname)
	     (tt:client-connect-to-server ttdat dbfname run-id testsuite)))))))
	     (tt:client-connect-to-server ttdat dbfname run-id testsuite server-start-proc)))))))

;; returns ( result . ping_time )
(define (tt:timed-ping host port server-id)
  (let* ((start-time (current-milliseconds))
	 (result     (tt:ping host port server-id)))
    (cons result (- (current-milliseconds) start-time))))
    

(define (tt:ping host port server-id #!optional (tries-left 5))
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
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







-
-
-
+
+
+
+




-











-
-
+
+
+

-
+



-
+



-
+






-
+





-
+










-
+





-
+


-
+

-
+



-
+



-
+
-
-
-







       ;; (debug:print 0 *default-log-port* "res not in form (status errmsg result meta), got: "res)
       (try-again)))))

;; client side handler
;;
;;(tt:handler #<tt> get-keys #f () 2 #f "/home/matt/data/megatest/ext-tests" #f "main.db" "ext-tests" "/home/matt/data/megatest/bin/.22.04/../megatest")
;;
(define (tt:handler ttdat cmd run-id params attemptnum area-dat areapath readonly-mode dbfname testsuite mtexe)
  ;; NOTE: areapath is passed in and in tt struct. We'll use passed in value for now.
  (let* ((conn (tt:client-connect-to-server ttdat dbfname run-id testsuite))) ;; (hash-table-ref/default (tt-conns ttdat) dbfname #f)))
(define (tt:handler ttdat cmd run-id params attemptnum readonly-mode dbfname testsuite mtexe server-start-proc)
  ;; connect-to-server will start a server if needed.
  (let* ((areapath (tt-areapath ttdat))
	 (conn     (tt:client-connect-to-server ttdat dbfname run-id testsuite server-start-proc))) ;; looks up conn keyed by dbfname
    (if conn
	;; have connection, call the server
	(let* ((res (tt:send-receive ttdat conn cmd run-id params)))
	  ;; res is (status errmsg result meta)
         ; (debug:print 0 *default-log-port* "conn:" conn " res: " res)
	  (match res
	    ((status errmsg result meta)
	     (if (list? meta)
		 (let* ((delay-wait (alist-ref 'delay-wait meta)))
		   (if (and (number? delay-wait)
			    (> delay-wait 0))
		       (begin
			 (debug:print 0 *default-log-port* "Server is loaded, delaying "delay-wait" seconds")
			 (thread-sleep! delay-wait)))))
	     (case status
	       ((busy) ;; result will be how long the server wants you to delay
		(let* ((dly  (if (number? result) result 0.1)))
		  (debug:print 0 *default-log-port* "WARNING: server for "dbfname" is busy, will try again in "dly" seconds.")
		(let* ((raw-dly  (if (number? result) result 0.1))
		       (dly      (+ raw-dly (/ attemptnum 10)))) ;; (* raw-dly (/ attemptnum 2))))
		  (debug:print 0 *default-log-port* "WARNING: server for "dbfname" is busy, cmd is "cmd", will try again in "dly" seconds. This is attempt "(- attemptnum 1))
		  (thread-sleep! dly)
		  (tt:handler  ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe)))
		  (tt:handler  ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe server-start-proc)))
	       ((loaded)
		(debug:print 0 *default-log-port* "WARNING: server for "dbfname" is loaded, slowing queries.")
		(tt:backoff-incr (tt-conn-host conn)(tt-conn-port conn))
		result) ;; (tt:handler  ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe))
		result) ;; (tt:handler  ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe))
	       (else
		result)))
	    (else ;; did not receive properly formated result
	     (if (not res) ;; tt:handler is telling us that communication failed
	     (if (not res) ;; tt:send-receive telling us that communication failed
		 (let* ((host    (tt-conn-host conn))
			(port    (tt-conn-port conn))
			;; (dbfname (tt-conn-port conn)) ;; 192.168.0.127:4242-726924:4.db
			(pid     (tt-conn-pid  conn))
                        ;;(servinf (tt-conn-servinf-file conn))) 
			(servinf (tt-servinf-file ttdat))) ;; (conc areapath"/.servinfo/"host":"port"-"pid":"dbfname))) ;; TODO, use (server:get-servinfo-dir areapath)
		   (hash-table-set! (tt-conns ttdat) dbfname #f)
		   (hash-table-set! (tt-conns ttdat) dbfname #f) ;; clear out the conn for this dbfname to force finding new server
		   (if (and servinf (file-exists? servinf))
		       (begin
			 (if (< attemptnum 10)
			     (begin
			       (thread-sleep! 0.5)
			       (tt:handler ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe))
			       (tt:handler ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe server-start-proc))
			     (begin
			       (debug:print 0 *default-log-port* "INFO: no response from server "host":"port" for "dbfname)
			       (if (and (file-exists? servinf)
					(> (- (current-seconds)(file-modification-time servinf)) 60))
				   (begin
				     (debug:print 0 *default-log-port* "INFO: "servinf" file seems old and no ping response, removing it.")
				     (handle-exceptions
					 exn
				       #f
				       (delete-file* servinf))
				     (tt:handler ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe))
				     (tt:handler ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe server-start-proc))
				   (begin
				     ;; start server - addressed in client-connect-to-server
				     ;; delay        - addressed in client-connect-to-server
				     ;; try again
				     (thread-sleep! 0.25) ;; dunno, I think this needs to be here
				     (tt:handler ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe))
				     (tt:handler ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe server-start-proc))
				   ))))
		       (begin ;; no server file, delay and try again
			 (debug:print 0 *default-log-port* "INFO: connection to server "host":"port" broken for "dbfname", but do not see servinf file "servinf)
			 (debug:print 2 *default-log-port* "INFO: connection to server "host":"port" broken for "dbfname", no servinf file. Server exited? ")
			 (thread-sleep! 0.5)
			 (tt:handler ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe))))
			 (tt:handler ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe server-start-proc))))
		 (begin ;; this case is where res is malformed. Probably should abort
		   (assert #f "FATAL: tt:handler received bad data "res)
		   ;; (debug:print 0 *default-log-port* "INFO: got corrupt data from server "host":"port", "res", for "dbfname", will try again.")
		   ;; (tt:handler ttdat cmd run-id params (+ attemptnum 1) area-dat areapath readonly-mode dbfname testsuite mtexe)
		   ;; (tt:handler ttdat cmd run-id params (+ attemptnum 1) readonly-mode dbfname testsuite mtexe)
		   )))))
	(begin
	  (thread-sleep! 1) ;; no conn yet set up, give it a rest and try again
	  (tt:handler ttdat cmd run-id params attemptnum area-dat areapath readonly-mode dbfname testsuite mtexe)))))
	  (tt:handler ttdat cmd run-id params attemptnum readonly-mode dbfname testsuite mtexe server-start-proc)))))

(define (tt:bid-for-servership run-id)
  #f)

;; gets server info and appends path to server file
;; sorts by age, oldest first
;;
;; returns list of (host port startseconds server-id servinfofile)
;;
(define (tt:get-server-info-sorted ttdat dbfname)
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
339
340
341
342
343
344
345














346
347
348
349
350
351
352







-
-
-
-
-
-
-
-
-
-
-
-
-
-







       (if (or (> (length sorted) 1)
	       (common:low-noise-print 120 "server info sorted"))
	   (debug:print 2 *default-log-port* "SERVER #"count": "(string-intersperse (map conc sorted) ", ")))
       (set! count (+ count 1)))
     sorted)
    sorted))
    
(define (tt:get-current-server-info ttdat dbfname)
  (assert (tt-areapath ttdat) "FATAL: areapath not set in ttdat.")
  ;;
  ;; TODO - replace most of below with tt;get-server-info-sorted
  ;;
  (let* ((areapath (tt-areapath ttdat))
	 (sfiles   (tt:find-server areapath dbfname))
	 (sdats    (filter car (map tt:server-get-info sfiles))) ;; first element is #f if the file disappeared while being read
	 (sorted   (sort sdats (lambda (a b)
				 (< (list-ref a 2)(list-ref b 2))))))
    (if (null? sorted)
	#f  ;; we'll want to wait until extra servers have exited
	(car sorted))))

(define (tt:send-receive ttdat conn cmd run-id params)
  (let* ((host-port (tt-conn-host-port conn)) ;; (conc (tt-conn-host conn)":"(tt-conn-port conn)))
	 (host      (tt-conn-host conn))
	 (port      (tt-conn-port conn))
	 (dat       (list cmd run-id params #f))) ;; no meta data yet
    (tt:send-receive-direct host port dat)))

455
456
457
458
459
460
461
462

463
464
465
466
467
468
469
470

471
472

473
474
475
476
477
478
479
480
481
482
483
484
485
486



































































487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515








































516
517
518
519


520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540

541
542
543
544
545
546


547
548

549
550
551

552
553

554
555
556
557

558
559
560
561


562
563


564
565
566


567
568
569
570


571
572
573
574
575











576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606

607
608
609
610
611
612
613
614

615
616
617
618
619
620
621
622




623
624
625

626
627
628
629
630

631
632
633

634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670



671
672
673


674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690

691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710


















711
712
713
714
715
716
717
718
719
720
721
722
723
724
725



726
727
728
729
730
731
732
457
458
459
460
461
462
463

464
465
466
467
468
469

470

471


472














473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540




























541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582


583
584





















585






586
587


588

589

590


591




592




593
594


595
596



597
598




599
600





601
602
603
604
605
606
607
608
609
610
611































612



613
614
615
616

617
618
619
620
621
622



623
624
625
626
627
628

629
630
631
632
633

634
635
636

637


































638


639
640
641
642
643

644
645
646
647
648




649
650
651
652
653
654
655
656
657

658



659

660
661
662
663
664
665
666
667
668
669
670
671
672


673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703


704
705
706
707
708
709
710
711
712
713







-
+





-

-
+
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+


-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-
-
-
-
+
+
-
-
+
-

-
+
-
-
+
-
-
-
-
+
-
-
-
-
+
+
-
-
+
+
-
-
-
+
+
-
-
-
-
+
+
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-




-
+





-
-
-
+
+
+
+


-
+




-
+


-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

-
-
+
+
+


-
+
+



-
-
-
-









-
+
-
-
-

-













-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+













-
-
+
+
+







  #f)

;; start the listener and start responding to requests
;;
;; NOTE: organise by dbfname, not run-id so we don't need
;;       to pull in more modules
;;
;; This is the routine called in megatest.scm to start a server
;; This is the routine called in megatest.scm to start a server. NOTE: sequence is different for main.db vs. X.db
;;
;; Server viability is checked in keep-running. Blindly start and run here.
;;
(define (tt:start-server areapath run-id dbfname-in handler keys)
  (assert areapath "FATAL: areapath not provided for tt:start-server")
  ;; is there already a server for this dbfile? Then exit.
  (let* ((ttdat   (make-tt areapath: areapath))
	 (dbfname (or dbfname-in (dbmod:run-id->dbfname run-id)))
	 (dbfname (or dbfname-in (dbmod:run-id->dbfname run-id))))
	 (servers (tt:find-server areapath dbfname))) ;; should use tt:get-current-server-info instead
    (if (> (length servers) 4)
    (set! *server-info* ttdat)
	(begin
	  (debug:print 0 *default-log-port* "INFO: found server(s) already running for db "dbfname", "(string-intersperse servers ",")" Exiting.")
	  (exit))
	(let* ((dbstruct   (dbmod:open-dbmoddb areapath run-id dbfname (dbfile:db-init-proc) keys)))
	  (tt-handler-set! ttdat (handler dbstruct))
	  (let* ((tcp-thread (make-thread
			      (lambda ()
				(tt:start-tcp-server ttdat)) ;; start the tcp-server which applies handler to incoming data
			      "tcp-server-thread"))
		 (run-thread (make-thread
			      (lambda ()
				(tt:keep-running ttdat dbfname dbstruct)))))
	    (thread-start! tcp-thread)
	    (thread-start! run-thread)
    (let* ((dbstruct   (dbmod:open-dbmoddb areapath run-id dbfname (dbfile:db-init-proc) keys)))
      (tt-handler-set! ttdat (handler dbstruct))
      (let* ((servinf-created #f)
	     (tcp-thread      (make-thread
			       (lambda ()
				 ;; NOTE: tt-port and tt-host are set in connect-listener which is called under tt:start-tcp-server
				 (tt:start-tcp-server ttdat)) ;; start the tcp-server which applies handler to incoming data
			       "tcp-server-thread"))
	     (run-thread      (make-thread
			       (lambda ()
				 (tt:keep-running ttdat dbfname dbstruct)))))
	(thread-start! tcp-thread)

	(let* ((areapath     (tt-areapath ttdat))
	       (nosyncdbpath (conc areapath"/.mtdb"))
	       (servers      ;; (tt:find-server areapath dbfname)))
		(tt:get-server-info-sorted ttdat dbfname)) ;; (host port startseconds server-id servinfofile)
	       (good-srvrs  
		;; contact servers via ping, if no response remove the .servinfo file
		(let loop ((servrs     servers)
			   (prime-host #f)
			   (result    '()))
		  (if (null? servrs)
		      (reverse result)
		      (let* ((servdat (car servrs)))
			(match servdat
			     ((host port startseconds server-id servinfofile)
			      (let* ((ping-res  (tt:timed-ping host port server-id))
				     (good-ping (match ping-res
						   ((result . ping-time)
						    (not result)) ;; we couldn't reach the server or it was not a megatest server
						   (else #f))) ;; the ping failed completely?
				     (same-host (or (not prime-host) ;; i.e. this is the first host
						    (equal? prime-host host)))
				     (keep-srv  (and good-ping same-host)))
				(if keep-srv	
				    (loop (cdr servrs)
					  host
					  (cons servdat result))
				    (begin
				      (handle-exceptions
				       exn
				       (debug:print-info 0 *default-log-port* "Error removing server info file: "servinfofile", "
							 (condition->list exn))
				       (delete-file* servinfofile))
				      (loop (cdr servrs) prime-host result)))))
			     (else
			      ;; can't delete it as we don't have a filename. NOTE: Should really never get here.
			      (debug:print-info 0 *default-log-port* "ERROR: bad servinfo record \""servdat"\"")
			      (loop (cdr servrs) prime-host result)) ;; drop 
			     )))))
	       (home-host (if (null? good-srvrs)
			      #f
			      (caar good-srvrs))))
	  ;; by here we have a trustworthy list of servers and we have removed the .servinfo file for any unresponsive servers
	  ;; and the list is in good-srvrs
	  (cond
	   ((not home-host) ;; no servers yet, go ahead and start
	    (debug:print-info 0 *default-log-port* "No servers yet, starting on "(get-host-name)))
	   ((> (length good-srvrs) 2) ;; don't need more, just exit
	    (debug:print-info 0 *default-log-port* "Have "(length good-srvrs)", no need for more, exiting.")
	    (exit))
	   ((not (equal? home-host (get-host-name))) ;; there is a home-host and we are not on it
	    (debug:print-info 0 *default-log-port* "Prime main server is on host "home-host", but we are on host "(get-host-name)", exiting.")
	    (exit))
	   (else
	    (debug:print-info 0 *default-log-port* "Starting on host "(get-host-name)", along with "(length good-srvrs)" other servers.")))

	    (let* ((areapath     (tt-areapath ttdat))
		   (nosyncdbpath (conc areapath"/.mtdb")))
	      ;; this didn't seem to work, is port not available yet?
	      (let loop ((count 0))
		(if (tt-port ttdat)
		    (begin
		      (procinf-port-set! *procinf* (tt-port ttdat))
		      (procinf-dbname-set! *procinf* dbfname)
		      (dbfile:with-no-sync-db
		       nosyncdbpath
		       (lambda (nsdb)
			 (dbfile:insert-or-update-process nsdb *procinf*))))
		    (if (< count 5)
			(begin
			  (thread-sleep! 0.5)
			  (loop (+ count 1)))
			(debug:print 0 *default-log-port* "ERROR: (tt-port ttdat) no port set!"))))
	    
	      (thread-join! run-thread) ;; run thread will exit on timeout or other conditions
	      ;; replace with call to (dbfile:set-process-done nsdb host pid reason)
	      (procinf-status-set! *procinf* "done")
	      (procinf-end-set! *procinf* (current-seconds))
	      (dbfile:with-no-sync-db
	       nosyncdbpath
	       (lambda (nsdb)
		 (dbfile:insert-or-update-process nsdb *procinf*)))
              (debug:print 0 *default-log-port* "Exiting now.")
	      (exit)))))))
	  ;; this didn't seem to work, is port not available yet?
	  (let loop ((count 0))
	    (if (tt-port ttdat)
		(begin
		  (procinf-port-set! *procinf* (tt-port ttdat))
		  (procinf-dbname-set! *procinf* dbfname)
		  (dbfile:with-no-sync-db
		   nosyncdbpath
		   (lambda (nsdb)
		     (dbfile:insert-or-update-process nsdb *procinf*))))
		(if (< count 10)
		    (begin
		      (thread-sleep! 0.25)
		      (loop (+ count 1)))
		    (begin
		      (debug:print 0 *default-log-port* "ERROR: (tt-port ttdat) no port set! Exiting.")
		      (exit)))))
	  
	  ;; create a servinfo file start keep-running
	  (tt:create-server-registration-file ttdat dbfname)
	  (procinf-status-set! *procinf* "running")
	  (tt-state-set! ttdat 'running)
	  (dbfile:with-no-sync-db
	   nosyncdbpath
	   (lambda (nsdb)
	     (dbfile:insert-or-update-process nsdb *procinf*)))
	  (thread-start! run-thread)

	  (thread-join! run-thread) ;; run thread will exit on timeout or other conditions
	  
	  ;; replace with call to (dbfile:set-process-done nsdb host pid reason)
	  (procinf-status-set! *procinf* "done")
	  (procinf-end-set! *procinf* (current-seconds))
	  ;; either convert this to use set-process-done or get rid of set-process-done
	  (dbfile:with-no-sync-db
	   nosyncdbpath
	   (lambda (nsdb)
	     (dbfile:insert-or-update-process nsdb *procinf*)))
	  (debug:print 0 *default-log-port* "Exiting now.")
	  (exit))))))

(define (tt:keep-running ttdat dbfname dbstruct)
  ;; verfiy conn for ready
  ;; listener socket has been started by this stage
  
  ;; at this point the server is running and responding to calls, we just monitor
  ;; wait for a port before creating the registration file
  ;;
  (let* ((db-locked-in #f)
	 (areapath     (tt-areapath ttdat))
	 (nosyncdbpath (conc areapath"/.mtdb"))
	 (cleanup (lambda ()
		    (if (tt-cleanup-proc ttdat)
			((tt-cleanup-proc ttdat)))
		    (dbfile:with-no-sync-db nosyncdbpath
					    (lambda (db)
					      (let* ((dbtmpname (dbr:dbstruct-dbtmpname dbstruct)))
						(debug:print-info 0 *default-log-port* "Running clean up, including removing db file "dbtmpname)
						(db:no-sync-del! db dbfname)
						#;(if dbtmpname
						    (delete-file dbtmpname))))))))
    (set! *server-info* ttdat)
    (let loop ((count 0))
      (if (> count 240)
	  (begin
	    (debug:print 0 *default-log-port* "FATAL: Could not start a tcp server, giving up.")
	    (exit 1))
  ;; for db calls and exit if there are none.
	  (if (not (tt-port ttdat)) ;; no connection yet
	      (begin
		(thread-sleep! 0.25)
		(loop (+ count 1))))))
    
    (tt:create-server-registration-file ttdat dbfname)

  ;; if I am not in the first 3 servers, exit
    ;; now start watching the last-access, if it hasn't been touched
    ;; in over ten seconds we exit
  (let* ((start-time (current-seconds)))
    (thread-sleep! 0.05) ;; any real need for delay here?
    (let loop ()
      (let* ((servers (tt:get-server-info-sorted ttdat dbfname))
      (let* ((servers   (tt:get-server-info-sorted ttdat dbfname))
	     (ok      (cond
		       ((null? servers) #f) ;; not ok
	     (home-host (if (null? servers)
		       ((equal? (list-ref (car servers) 6) ;; compare the servinfofile
				(tt-servinf-file ttdat))
			(let* ((res (if db-locked-in
					#t
			    #f
					(let* ((lock-result  ;; this is the primary lock - need to double verify that got it
						(dbfile:with-no-sync-db
						 nosyncdbpath
						 (lambda (db)
			    (caar servers)))
	     (my-index  (list-index (lambda (x)
						   (db:no-sync-lock-and-check db dbfname
									      (tt-servinf-file ttdat)
				      (equal? (list-ref x 6)
					      (tt-servinf-file ttdat)))
									      ;; (dbr:dbstruct-dbtmpname dbstruct)
									      ))))
					       (success (car lock-result)))
				    servers))
	     (ok         (cond
					  (if success
					      (begin
						(tt-state-set! ttdat 'running)
						(debug:print 0 *default-log-port* "Got server lock for " dbfname)
			  ((not *server-run*)
			   (debug:print 0 *default-log-port* "WARNING: received a stop server from client by remote request.")
						(set! db-locked-in #t)
						#t)
					      (begin
						(debug:print 0 *default-log-port* "Failed to get server lock for "dbfname)
						#f))))))
			   #f)
			  ((null? servers)
			   (debug:print 0 *default-log-port* "WARNING: no servinfo files found, this cannot be.")
			   #f) ;; not ok
			  ((> my-index 2)
			   (debug:print 0 *default-log-port* "WARNING: there are more than two servers ahead of me, I'm not needed, exiting.")
			   #f) ;; not ok to not be in first three
			  ((eq? (tt-state ttdat) 'running) #t) ;; we are good to keep going
			  ((> (- (current-seconds) start-time) 30)
			   (debug:print 0 *default-log-port* "WARNING: over 30 seconds and not yet in runnning mode. Exiting.")
			   #f)
			  (if (and res (common:low-noise-print 120 "top server message"))
			      (debug:print-info 0 *default-log-port* "Keep running, I'm the top server for "
						dbfname" on "(tt-host ttdat)":"(tt-port ttdat)))
			  res))
		       (else
			(debug:print-info 0 *default-log-port* "I'm not the lead server: "servers)
			(let* ((leadsrv (car servers)))
			  (match leadsrv
			    ((host port startseconds server-id pid dbfname servinfofile)
			     (let* ((result  (tt:timed-ping host port server-id))
				    (res     (car result))
				    (ping    (cdr result)))
			       (debug:print-info 0 *default-log-port* "Ping to "host":"port", with server-id "server-id
						 ", and file "servinfofile" returned "res)
			       (if res
				   #f ;; not the server, but all good, want to exit
				   (if (and (file-exists? servinfofile)
					  (> (- (current-seconds)(file-modification-time servinfofile)) 30))
				     (begin
				       ;; can't ping and file has been on disk 15 seconds, go ahead and try to remove it
				       (debug:print-info 0 *default-log-port* "Removing apparently dead server info file: "servinfofile)
                                       (handle-exceptions
                                        exn
                                        (debug:print-info 0 *default-log-port* "Error removing server info file: "servinfofile)
				        (delete-file* servinfofile)
                                       )
				       #t) ;; not the server but the server is not reachable
				     (begin
				       (debug:print 0 *default-log-port* "I'm not the server but could not ping "host":"port", will try again.")
				       (thread-sleep! 1) ;; just because
				       #t)))))
			  (else #t))))
			    (else ;; should never get here
			     (debug:print 0 *default-log-port* "BAD SERVER RECORD: "leadsrv)
			     (assert #f "Bad server record "leadsrv))))))))
	(if ok
	    (tt-last-access-set! ttdat *db-last-access*) ;; bit silly, just use db-last-access
	    (begin
	      (debug:print 0 *default-log-port* "Exiting immediately")
	      (cleanup)
	      (tt:shutdown-server ttdat)
	      (exit)))

	(let* ((last-update (dbr:dbstruct-last-update dbstruct))
	       (curr-secs   (current-seconds)))
	  (if (and (eq? (tt-state ttdat) 'running)
		   (> (- curr-secs last-update) 3)) ;; every 3-4 seconds update the db?
	      (begin
		(set! (file-modification-time (tt-servinf-file ttdat)) (current-seconds))
		   (> (- curr-secs last-update) 5)) ;; every 5 seconds update the db?
	      (let* ((sinfo-file (tt-servinf-file ttdat)))
		;; (debug:print 0 *default-log-port* "INFO: touching "sinfo-file)
		(set! (file-modification-time sinfo-file) (current-seconds))
		((dbr:dbstruct-sync-proc dbstruct) last-update)
		(dbr:dbstruct-last-update-set! dbstruct curr-secs))))
	  
	
	(if (< (- (current-seconds) (tt-last-access ttdat)) (tt-server-timeout-param))
	    (begin
	      (thread-sleep! 5)
	      (loop)))))
    (cleanup)
    ;; (cleanup) ;; all done by tt:shutdown-server
    (debug:print 0 *default-log-port* "INFO: Server timed out, exiting from tt:keep-running.")))

  

;; ;; given an already set up uconn start the cmd-loop
;; ;;
;; (define (tt:cmd-loop ttdat)
;;   (let* ((serv-listener (-socket uconn))
;; 	 (listener      (lambda ()
;; 			  (let loop ((state 'start))
;; 			    (let-values (((inp oup)(tcp-accept serv-listener)))
;; 			      ;; (mutex-lock! *send-mutex*) ;; DOESN'T SEEM TO HELP
;; 			      (let* ((rdat  (deserialize inp)) ;; '(my-host-port qrykey cmd params)
;; 				     (resp  (ulex-handler uconn rdat)))
;; 				(serialize resp oup)
;; 				(close-input-port inp)
;; 				(close-output-port oup)
;; 				;; (mutex-unlock! *send-mutex*) ;; DOESN'T SEEM TO HELP
;; 				)
;; 			      (loop state))))))
;;     ;; start N of them
;;     (let loop ((thnum   0)
;; 	       (threads '()))
;;       (if (< thnum 100)
;; 	  (let* ((th (make-thread listener (conc "listener" thnum))))
;; 	    (thread-start! th)
;; 	    (loop (+ thnum 1)
;; 		  (cons th threads)))
;; 	  (map thread-join! threads)))))
;; 
;; 
;; 
;; (define (wait-and-close uconn)
;;   (thread-join! (udat-cmd-thread uconn))
;;   (tcp-close (udat-socket uconn)))
;; 
;; 

(define (tt:shutdown-server ttdat)
  (let* ((cleanproc (tt-cleanup-proc ttdat))
	 (port      (tt-port         ttdat)))
  (let* ((host (tt-host ttdat))
	 (port (tt-port ttdat))
	 (sinf (tt-servinf-file ttdat)))
    (tt-state-set! ttdat 'shutdown)
    (portlogger:open-run-close portlogger:set-port port "released")
    (if cleanproc (cleanproc))
    (if (file-exists? sinf)
	(delete-file* sinf))
    (tcp-close (tt-socket ttdat)) ;; close up ports here
    ))

;; (define (wait-and-close uconn)
;;   (thread-join! (tt-cmd-thread uconn))
;;   (tcp-close (tt-socket uconn)))

;; return servid
;; side-effects:
;;   ttdat-cleanup-proc is populated with function to remove the serverinfo file
(define (tt:create-server-registration-file ttdat dbfname)
  (let* ((areapath (tt-areapath ttdat))
	 (servdir  (tt:get-servinfo-dir areapath))
	 (host     (tt-host ttdat))
	 (port     (tt-port ttdat))
	 (servinf (conc servdir"/"host":"port"-"(current-process-id)":"dbfname))
	 (serv-id (tt:mk-signature areapath))
	 (serv-id (tt:mk-signature areapath)))
	 (clean-proc (lambda ()
		       (delete-file* servinf)
		       )))
    (assert (and host port) "FATAL: tt:create-server-registration-file called with no conn, dbfname="dbfname)
    (tt-cleanup-proc-set! ttdat clean-proc)
    (tt-servinf-file-set! ttdat servinf)
    (with-output-to-file servinf
      (lambda ()
	(print "SERVER STARTED: "host":"port" AT "(current-seconds)" server-id: "serv-id" pid: "(current-process-id)" dbfname: "dbfname)))
      serv-id))

;; find valid server
;; get servers listed, last part of name must match :<dbfname>
;; if more than one, wait one second and look again
;; future: ping oldest, if alive remove other :<dbfname> files
;;
(define (tt:find-server areapath dbfname)
  (let* ((servdir  (tt:get-servinfo-dir areapath))
	 (sfiles   (glob (conc servdir"/*:"dbfname))))
    sfiles))
	 (sfiles   (glob (conc servdir"/*:"dbfname)))
	 (goodfiles '()))

    ;; filter the files here by looking in processes table (if we are not main.db)
    ;; and or look at the time stamp on the servinfo file, a running server will
    ;; touch the file every minute (again, this will only apply for main.db)
    (for-each (lambda (fname)
		(let* ((age (- (current-seconds)(file-modification-time fname))))
		  (if (> age 200) ;; can't trust it if over 200 seconds old
		      (begin
			(debug:print 0 *default-log-port* "WARNING: removing stale servinfo file "fname", it is "age" seconds old")
			(handle-exceptions
			 exn
			 (debug:print 0 *default-log-port* "WARNING: error attempting to remove stale servinfo file "fname)
			 (delete-file fname))) ;; 
		      (set! goodfiles (cons fname goodfiles)))))
	      sfiles)
    goodfiles))

;; given a path to a server info file return: host port startseconds server-id pid dbfname logf
;; example of what it's looking for in the log file:
;;     SERVER STARTED: 10.38.175.67:50216 AT 1616502350.0 server-id: 4907e90fc55c7a09694e3f658c639cf4 
;;
(define (tt:server-get-info logf)
  (let ((server-rx    (regexp "^SERVER STARTED: (\\S+):(\\d+) AT ([\\d\\.]+) server-id: (\\S+) pid: (\\d+) dbfname: (\\S+)")) ;; SERVER STARTED: host:port AT timesecs server id
        (dbprep-rx    (regexp "^SERVER: dbprep"))
        (dbprep-found 0)
	(bad-dat      (list #f #f #f #f #f #f logf)))
     (let ((fdat     (handle-exceptions
			 exn
		       (begin
			 ;; WARNING: this is potentially dangerous to blanket ignore the errors
			 (debug:print-info 0 *default-log-port* "Unable to get server info from "logf", exn="(condition->list exn))
			 ;; BUG, TODO: add err checking, for now blanket ignore the errors?
			 (debug:print-info 0 *default-log-port* "Unable to get server info from "logf
					   ", exn="(condition->list exn))
			 '()) ;; no idea what went wrong, call it a bad server, return empty list
		       (with-input-from-file logf read-lines))))
       (if (null? fdat) ;; bad data, return bad-dat
	   bad-dat
	   (let loop ((inl  (car fdat))
		      (tail (cdr fdat))
		      (lnum 0))
748
749
750
751
752
753
754







755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794




































795
796
797
798
799
800
801
802
803
804
805











806
807
808
809
810
811
812
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752






























753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789










790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807







+
+
+
+
+
+
+










-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+







			    (string->number pid)
			    dbfname
			    logf))
		     (else
		      (debug:print 0 *default-log-port* "ERROR: did not recognise SERVER line info "mlst)
		      bad-dat)))))))))

(define *last-server-start* (make-hash-table))

(define (tt:too-recent-server-start dbfname)
  (let* ((last-run-time (hash-table-ref/default *last-server-start* dbfname #f)))
    (and last-run-time
	 (< (- (current-seconds) last-run-time) 5))))
    
;; Given an area path,  start a server process    ### NOTE ### > file 2>&1 
;; if the target-host is set 
;; try running on that host
;;   incidental: rotate logs in logs/ dir.
;;
(define  (tt:server-process-run areapath testsuite mtexe run-id #!key (profile-mode "")) ;; areapath is *toppath* for a given testsuite area
  (assert areapath  "FATAL: tt:server-process-run called without areapath defined.")
  (assert testsuite "FATAL: tt:server-process-run called without testsuite defined.")
  (assert mtexe     "FATAL: tt:server-process-run called without mtexe defined.")
  ;; mtest -server - -m testsuite:ext-tests -db 6.db
  (let* ((dbfname  (dbmod:run-id->dbfname run-id))
	 (load     (get-normalized-cpu-load))
	 (trying   (length (tt:find-server areapath dbfname)))
	 (nrun     (number-of-processes-running (conc "mtest.*server.*"testsuite".*"dbfname))))
    (cond
     ((> load 2.0)
      (debug:print 0 *default-log-port* "Normalized load "load" on " (get-host-name) " is over the limit of 2.0. Not starting a server.")
      (thread-sleep! 1))
     ((> nrun 100)
      (debug:print 0 *default-log-port* nrun" servers running on " (get-host-name) ", not starting another.")
      (thread-sleep! 1))
     ((> trying 4)
      (debug:print 0 *default-log-port* trying" servers registered in .servinfo dir. not starting another.")
      (thread-sleep! 1))
     (else
      (if (not (file-exists? (conc areapath"/logs")))
	      (create-directory (conc areapath"/logs") #t))
	  (let* ((logfile   (conc areapath "/logs/server-"dbfname"-"(current-process-id)".log")) ;; -" curr-pid "-" target-host ".log"))
		 (cmdln     (conc
			     mtexe
			     " -startdir "areapath
			     " -server - ";; (or target-host "-")
			     " -m testsuite:"testsuite
			     " -db "dbfname ;; (dbmod:run-id->dbfname run-id)
			     " " profile-mode
			     (conc " >> " logfile " 2>&1 &"))))
	    ;; we want the remote server to start in *toppath* so push there
	    ;; (push-directory areapath) ;; use cd in the command line instead
	    (debug:print 0 *default-log-port* "INFO: Trying to start server in tcp mode (" cmdln ") at "(common:human-time)" for "areapath)
	    ;; (debug:print 0 *default-log-port* "INFO: starting server at " (common:human-time))
  (let* ((dbfname  (dbmod:run-id->dbfname run-id)))
    (if (tt:too-recent-server-start dbfname)
	#f
	(let* ((load     (get-normalized-cpu-load))
	       (srvrs    (tt:find-server areapath dbfname))
	       (trying   (length srvrs))
	       (nrun     (number-of-processes-running (conc "mtest.*server.*"testsuite".*"dbfname))))
	  (cond
	   ((> load 2.0)
	    (debug:print 0 *default-log-port* "Normalized load "load" on " (get-host-name) " is over the limit of 2.0. Not starting a server. Please reduce the load on "(get-host-name)" by killing some processes")
	    (thread-sleep! 1)
	    #f)
	   ((> nrun 100)
	    (debug:print 0 *default-log-port* nrun" servers running on " (get-host-name) ", not starting another.")
	    (thread-sleep! 1)
	    #f)
	   ((> trying 2)
	    (debug:print 0 *default-log-port* trying" servers registered in .servinfo dir. not starting another.")
	    (thread-sleep! 1)
	    #f)
	   (else
	    (if (not (file-exists? (conc areapath"/logs")))
		(create-directory (conc areapath"/logs") #t))
	    (let* ((logfile   (conc areapath "/logs/server-"dbfname"-"(current-process-id)".log")) ;; -" curr-pid "-" target-host ".log"))
		   (cmdln     (conc
			       mtexe
			       " -startdir "areapath
			       " -server - ";; (or target-host "-")
			       " -m testsuite:"testsuite
			       " -db "dbfname ;; (dbmod:run-id->dbfname run-id)
			       " " profile-mode
			       (conc " >> " logfile " 2>&1 &"))))
	      ;; we want the remote server to start in *toppath* so push there
	      ;; (push-directory areapath) ;; use cd in the command line instead
	      (debug:print 2 *default-log-port* "INFO: Trying to start server in tcp mode (" cmdln ") at "(common:human-time)" for "areapath)
	      ;; (debug:print 0 *default-log-port* "INFO: starting server at " (common:human-time))

	    (system cmdln)
	    ;; ;; use below to go back to nbfake - nbfake does cause trouble ...
	    ;; (setenv "NBFAKE_QUIET" "yes") ;; BUG: change to with-environment-variable ...
	    ;; (setenv "NBFAKE_LOG" logfile)
	    ;; (system (conc "cd "areapath" ; nbfake " cmdln))
	    ;; (unsetenv "NBFAKE_QUIET")
	    ;; (unsetenv "NBFAKE_LOG")
	    
	    ;;(pop-directory)
	    )))))
	      (system cmdln)
	      (hash-table-set! *last-server-start* dbfname (current-seconds))
	      ;; ;; use below to go back to nbfake - nbfake does cause trouble ...
	      ;; (setenv "NBFAKE_QUIET" "yes") ;; BUG: change to with-environment-variable ...
	      ;; (setenv "NBFAKE_LOG" logfile)
	      ;; (system (conc "cd "areapath" ; nbfake " cmdln))
	      ;; (unsetenv "NBFAKE_QUIET")
	      ;; (unsetenv "NBFAKE_LOG")
	      
	      ;;(pop-directory)
	      #t)))))))

;;======================================================================
;; tcp connection stuff
;;======================================================================

;; find a port and start tcp-server. This only starts the tcp portion of
;; the server, look at (tt:start-server ...) above for the entry point

Modified tests.scm from [6fa611f761] to [97b0ba1ab3].

1962
1963
1964
1965
1966
1967
1968

1969

1970
1971
1972
1973
1974
1975
1976
1962
1963
1964
1965
1966
1967
1968
1969

1970
1971
1972
1973
1974
1975
1976
1977







+
-
+








;;======================================================================
;; test steps
;;======================================================================

;; teststep-set-status! used to be here

;; NOT NEEDED
(define (test-get-kill-request run-id test-id) ;; run-id test-name itemdat)
#;(define (test-get-kill-request run-id test-id) ;; run-id test-name itemdat)
  (let* ((testdat   (rmt:get-test-state-status-by-id run-id test-id)))
    (and testdat
	 (equal? (car testdat) "KILLREQ"))))

(define (test:tdb-get-rundat-count tdb)
  (if tdb
      (let ((res 0))

Modified utils/mt_xterm from [5e40a3e5f1] to [27e4db9521].

18
19
20
21
22
23
24
25
26
27
28





29
30
31
32
33
34
35
36
37
38
39
18
19
20
21
22
23
24




25
26
27
28
29
30



31
32
33
34
35
36
37







-
-
-
-
+
+
+
+
+

-
-
-







#     along with Megatest.  If not, see <http://www.gnu.org/licenses/>.

MT_TMPDISPLAY=$DISPLAY
MT_TMPUSER=$USER
MT_HOME=$HOME

tmpfile=`mktemp`

grep -v "export USER=" megatest.sh | grep -v "export HOME=" > $tmpfile
source $tmpfile
rm $tmpfile
if [[ -e megatest.sh ]]; then
  grep -v "export USER=" megatest.sh | grep -v "export HOME=" > $tmpfile
  source $tmpfile
  rm $tmpfile
fi

# if [ -e megatest.sh ];then
#source megatest.sh
#fi
export DISPLAY=$MT_TMPDISPLAY
export USER=$USER
export HOME=$MT_HOME

if [ x"$MT_XTERM_CMD" == "x" ];then
  exec xterm "$@"
else