Megatest

                                 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 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)
			;; (sqlite3:open-database dbname)
			)))
    (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))

	 (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))

)