;; Copyright 2006-2012, Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
(require-extension (srfi 18) extras tcp rpc)
(import (prefix rpc rpc:))
(use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo)
(import (prefix sqlite3 sqlite3:))
(declare (unit server))
(declare (uses common))
(declare (uses db))
(declare (uses tests))
(include "common_records.scm")
(include "db_records.scm")
;; procstr is the name of the procedure to be called as a string
(define (server:autoremote procstr params)
(handle-exceptions
exn
(begin
(debug:print 1 "Remote failed for " proc " " params)
(apply (eval (string->symbol procstr)) params))
;; (if *runremote*
;; (apply (eval (string->symbol (conc "remote:" procstr))) params)
(apply (eval (string->symbol procstr)) params)))
(define (server:start db hostn)
(debug:print 0 "Attempting to start the server ...")
(let ((host:port (db:get-var db "SERVER"))) ;; do whe already have a server running?
(if host:port
(set! *runremote* #t)
(let* ((rpc:listener (server:find-free-port-and-open (rpc:default-server-port)))
(th1 (make-thread
(cute (rpc:make-server rpc:listener) "rpc:server")
'rpc:server))
(th2 (make-thread (lambda ()(db:updater))))
(hostname (if (string=? "-" hostn)
(get-host-name)
hostn))
(ipaddrstr (if (string=? "-" hostn)
(string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
#f))
(host:port (conc (if ipaddrstr ipaddrstr hostname) ":" (rpc:default-server-port))))
(db:set-var db "SERVER" host:port)
(set! *cache-on* #t)
;; can use this to run most anything at the remote
(rpc:publish-procedure!
'remote:run
(lambda (procstr . params)
(server:autoremote procstr params)))
(rpc:publish-procedure!
'serve:login
(lambda (toppath)
(set! *last-db-access* (current-seconds))
(if (equal? *toppath* toppath)
(begin
(debug:print 2 "INFO: login successful")
#t)
#f)))
;;======================================================================
;; db specials here
;;======================================================================
;; remote call to open-run-close
(rpc:publish-procedure!
'rdb:open-run-close
(lambda (procname . remargs)
(debug:print 4 "INFO: Remote call of rdb:open-run-close " procname " " remargs)
(set! *last-db-access* (current-seconds))
(apply open-run-close (eval procname) remargs)))
(rpc:publish-procedure!
'cdb:test-set-status-state
(lambda (test-id status state msg)
(debug:print 4 "INFO: Remote call of cdb:test-set-status-state test-id=" test-id ", status=" status ", state=" state ", msg=" msg)
(cdb:test-set-status-state test-id status state msg)))
(rpc:publish-procedure!
'cdb:test-rollup-iterated-pass-fail
(lambda (test-id)
(debug:print 4 "INFO: Remote call of cdb:test-rollup-iterated-pass-fail " test-id)
(apply cdb:test-rollup-iterated-pass-fail test-id)))
(rpc:publish-procedure!
'cdb:pass-fail-counts
(lambda (test-id fail-count pass-count)
(debug:print 4 "INFO: Remote call of cdb:pass-fail-counts " test-id " passes: " pass-count " fails: " fail-count)
(apply cdb:pass-fail-counts test-id fail count-pass-count)))
;;======================================================================
;; end of publish-procedure section
;;======================================================================
(set! *rpc:listener* rpc:listener)
(on-exit (lambda ()
(sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER' and val=?;" host:port)
(sqlite3:finalize! db)))
(thread-start! th1)
(debug:print 0 "Server started...")
(thread-start! th2)
;; (thread-join! th2)
;; return th2 for the calling process to do a join with
th2
)))) ;; rpc:server)))
(define (server:keep-running db)
;; if none running or if > 20 seconds since
;; server last used then start shutdown
(let loop ((count 0))
(thread-sleep! 20) ;; no need to do this very often
(let ((numrunning (db:get-count-tests-running db)))
(if (or (not (> numrunning 0))
(> *last-db-access* (+ (current-seconds) 60)))
(begin
(debug:print 0 "INFO: Starting to shutdown the server side")
(sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER'"); ;; AND val like ?;"
;; host:port) ;; need to delete only *my* server entry (future use)
(thread-sleep! 10)
(debug:print 0 "INFO: Server shutdown complete. Exiting")
(exit))))
(loop (+ 1 count))))
(define (server:find-free-port-and-open port)
(handle-exceptions
exn
(begin
(print "Failed to bind to port " (rpc:default-server-port) ", trying next port")
(server:find-free-port-and-open (+ port 1)))
(rpc:default-server-port port)
(tcp-listen (rpc:default-server-port))))
(define (server:client-setup)
(if *runremote*
(begin
(debug:print 0 "ERROR: Attempt to connect to server but already connected")
#f)
(let* ((hostinfo (open-run-close db:get-var #f "SERVER"))
(hostdat (if hostinfo (string-split hostinfo ":") #f))
(host (if hostinfo (car hostdat) #f))
(port (if (and hostinfo (> (length hostdat) 1))(cadr hostdat) #f)))
(if (and port
(string->number port))
(let ((portn (string->number port)))
(debug:print 2 "INFO: Setting up to connect to host " host ":" port)
(handle-exceptions
exn
(begin
(debug:print 0 "ERROR: Failed to open a connection to the server at host: " host " port: " port)
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
;; (open-run-close
;; (lambda (db . param)
;; (sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER'"))
;; #f)
(set! *runremote* #f))
(if (and (not (args:get-arg "-server")) ;; no point in the server using the server using the server
((rpc:procedure 'serve:login host portn) *toppath*))
(begin
(debug:print 2 "INFO: Connected to " host ":" port)
(set! *runremote* (vector host portn)))
(begin
(debug:print 2 "INFO: Failed to connect to " host ":" port)
(set! *runremote* #f)))))
(debug:print 2 "INFO: no server available")))))