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(declare (uses tests))
(declare (uses tasks)) ;; tasks are where stuff is maintained about what is running.
(include "common_records.scm")
(include "db_records.scm")
(define (server:make-server-url hostport)
(if (null? hostport)
(if (not hostport)
#f
(conc "tcp://" hostname ":" port)))
(conc "tcp://" (car hostport) ":" (cadr hostport))))
(define (server:run hostn)
(debug:print 0 "Attempting to start the server ...")
(if (not *toppath*)(setup-for-run))
(let* ((hostport (open-run-close tasks:get-best-server tasks:open-db)) ;; do whe already have a server running?
(host:port (server:make-server-url hostport)))
(if host:port
(begin
(debug:print 0 "NOTE: server already running.")
(if (server:client-setup)
(begin
(debug:print-info 0 "Server is alive, not starting another"))
(begin
(debug:print-info 0 "Server is dead, removing, deregistering it and trying again")
(open-run-close tasks:deregister tasks:open-db (car hostport) port: (cadr port))
(debug:print-info 0 "Server is dead, deregistering it, please try again")
(open-run-close tasks:server-deregister tasks:open-db (car hostport) port: (cadr port))
;; (server:run hostn)
(debug:print 0 "WOULD NORMALLY START ANOTHER SERVER HERE")
)
)
)
(let* ((zmq-socket #f)
(hostname (if (string=? "-" hostn)
(get-host-name)
hostn))
(ipaddrstr (let ((ipstr (if (string=? "-" hostn)
(string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
#f)))
(if ipstr ipstr hostname))))
(set! zmq-socket (server:find-free-port-and-open ipaddrstr zmq-socket 5555))
(set! zmq-socket (server:find-free-port-and-open ipaddrstr zmq-socket 5555 0))
(set! *cache-on* #t)
;; what to do when we quit
;;
(on-exit (lambda ()
(open-run-close tasks:server-deregister-self tasks:open-db)
(let loop ()
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(open-run-close db:del-var #f "SERVER")
(thread-sleep! 10)
(debug:print-info 0 "Max cached queries was " *max-cache-size*)
(debug:print-info 0 "Server shutdown complete. Exiting")
;; (exit)))
))))))
(define (server:find-free-port-and-open host s port)
(define (server:find-free-port-and-open host s port trynum)
(let ((s (if s s (make-socket 'rep)))
(p (if (number? port) port 5555)))
(handle-exceptions
exn
(begin
(debug:print 0 "Failed to bind to port " p ", trying next port")
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
(if (< trynum 100)
(server:find-free-port-and-open host s (+ p 1)))
(let* ((hostinfo (open-run-close db:get-var #f "SERVER"))
(let* ((hostinfo (open-run-close tasks:get-best-server tasks:open-db))
(zmq-socket (make-socket 'req)))
(if hostinfo
(begin
(debug:print-info 2 "Setting up to connect to " hostinfo)
(handle-exceptions
exn
(begin
(debug:print 0 "ERROR: Failed to open a connection to the server at: " hostinfo)
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 " perhaps jobs killed with -9? Removing server records")
(open-run-close db:del-var #f "SERVER")
(exit)
(open-run-close tasks:server-deregister tasks:open-db (car hostinfo) port: (cadr hostinfo))
;; (exit) ;; why forced exit?
#f)
(let ((connect-ok #f))
(connect-socket zmq-socket hostinfo)
(let ((connect-ok #f)
(conurl (server:make-server-url hostinfo)))
(connect-socket zmq-socket conurl)
(set! connect-ok (cdb:client-call zmq-socket 'login #t *toppath*))
(if connect-ok
(begin
(debug:print-info 2 "Logged in and connected to " hostinfo)
(debug:print-info 2 "Logged in and connected to " conurl)
(set! *runremote* zmq-socket)
#t)
(begin
(debug:print-info 2 "Failed to login or connect to " hostinfo)
(debug:print-info 2 "Failed to login or connect to " conurl)
(set! *runremote* #f)
#f)))))
(begin
(debug:print-info 0 "NO SERVER RUNNING! PLEASE START ONE! E.g. \"megatest -server - &\"")
;; (debug:print-info 2 "No server available, attempting to start one...")
;; (system (conc (car (argv)) " -server - " (if (args:get-arg "-debug")
;; (conc "-debug " (args:get-arg "-debug"))
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