Megatest

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

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

(use srfi-18)
(use srfi-18 posix hostinfo)

(declare (unit dbfile))
(declare (uses debugprint))
(declare (uses commonmod))

(module dbfile
	*
	
  (import scheme
	  chicken
	  data-structures
	  extras
	  matchable
  
	  (prefix sqlite3 sqlite3:)
	  posix typed-records
	  posix posix-extras typed-records

	  srfi-18
	  srfi-1
	  srfi-69
	  stack
	  files
	  ports
	  hostinfo
	  
	  commonmod
	  debugprint
	  )

;; parameters
;;

;; used in simple-get-runs (thanks Brandon!)
(define-record simple-run target id runname state status owner event_time)
(define-record-printer (simple-run x out)
  (fprintf out "#,(simple-run ~S ~S ~S ~S)"
	   (simple-run-target x) (simple-run-id x) (simple-run-runname x) (time->string (seconds->local-time (simple-run-event_time x) ))))

;; megatest process tracking

(defstruct pinf
  (start (current-seconds))
  (host  (get-host-name)) ;; why is this not being recognised?
  (pid   (current-process-id))
  (port  #f)
  (cwd   (current-directory))
  (load   #f)
  (purpose #f) ;; get-purpose needed
  (dbname   #f)
  (mtbin (car (argv)))
  (mtversion #f)
  (status   "running")
  
  
  )

(define *pinf* (make-pinf))
(define *dbstruct-dbs* #f)
(define *db-open-mutex* (make-mutex))
(define *db-access-mutex* (make-mutex)) ;; used in common.scm
(define *no-sync-db*   #f)
(define *db-sync-in-progress* #f)
(define *db-with-db-mutex*    (make-mutex))
(define *max-api-process-requests* 0)

    (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))))
    db))

;; processes table calls

(define (dbfile:insert-or-update-process nsdb pinfdat)
  (let* ((host  (pinf-host pinfdat))
	 (pid   (pinf-pid  pinfdat))
	 (curr-info (dbfile:get-process-info nsdb host pid)))
    (if curr-info ;; record exists, do update
	(match curr-info
	  ((host port pid starttime status purpose dbname mtversion)
	   (dbfile:register-process nsdb host port pid starttime status purpose dbname mtversion))
	  (else
	   #f ;; what to do?
	   ))
	(dbfile:register-process
	 nsdb
	 (pinf-host      pinfdat)
	 (pinf-port      pinfdat)
	 (pinf-pid       pinfdat)
	 (pinf-start     pinfdat)
	 (pinf-status    pinfdat)
	 (pinf-purpose   pinfdat)
	 (pinf-dbname    pinfdat)
	 (pinf-mtversion pinfdat)))))
	  

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

(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,status,mtversion FROM processes WHERE purpose=? AND dbname LIKE ? AND status='alive';"
   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,status,purpose,dbname,mtversionn FROM processes WHERE host=? AND pid=?;"
	      host pid)))
    (if (null? res)
	#f
	(car res))))

(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)
  (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))))

(declare (uses db))
(declare (uses rmtmod))
(declare (uses ezsteps))
;; (declare (uses dbmod))
(declare (uses dbfile))
(declare (uses mtargs))

(use regex regex-case base64 sqlite3 srfi-18 directory-utils posix-extras z3
     call-with-environment-variables csv)
(use typed-records pathname-expand matchable)
(use regex regex-case base64 sqlite3 srfi-18 directory-utils posix posix-extras z3
     call-with-environment-variables csv hostinfo 
     typed-records pathname-expand matchable)

(import (prefix base64 base64:)
	(prefix sqlite3 sqlite3:)
	(prefix mtargs args:)
)

(include "common_records.scm")