+ (listen server-socket 5)
+ (cond ((not (game-running?))
+ (game-loop)))))
+
+
+ (set! clean-closed-connections
+ (lambda (conns)
+ (cond ((null? conns) '())
+ (else
+ (let* ((cli (car conns)) (sock (car cli)))
+ (cond ((port-closed? sock)
+ (clean-closed-connections (cdr conns)))
+ (else
+ (cons cli (clean-closed-connections (cdr conns))))))))))
+
+ (set! check-connections
+ (lambda ()
+ (set! clients (clean-closed-connections clients))
+ (catch #t
+ (lambda ()
+ (cond ((char-ready? server-socket)
+ (set! clients (cons (accept server-socket) clients)))))
+ (lambda (key . args) #f))))
+
+ (set! eval-from-clients
+ (lambda ()
+ (for-each
+ (lambda (cli)
+ (let ((sock (car cli)))
+ (cond ((char-ready? sock)
+ (catch #t
+ (lambda ()
+ (let ((exp (read sock)))
+ (format #t "~a~%" exp)
+ (cond ((eof-object? exp)
+ (close sock))
+ (else
+ (format #t "~a~%" (primitive-eval (car exp)))
+ (format sock "~a" (primitive-eval (car exp)))))))
+ (lambda (key . args)
+ (let ((fmt (string-concatenate (list (cadr args) "~%")))
+ (params (caddr args)))
+ (if params
+ (apply format (cons sock (cons fmt params)))
+ (format sock fmt)))))))))
+ clients)))
+
+ (set! stop-server
+ (lambda ()
+ (cond (server-socket
+ (close server-socket)
+ (set! server-socket #f)))
+ (for-each (lambda (cli) (close (car cli))) clients)
+ (set! clients '()))))