1 ;;; Gacela, a GNU Guile extension for fast games development
2 ;;; Copyright (C) 2009 by Javier Sancho Fernandez <jsf at jsancho dot org>
4 ;;; This program is free software: you can redistribute it and/or modify
5 ;;; it under the terms of the GNU General Public License as published by
6 ;;; the Free Software Foundation, either version 3 of the License, or
7 ;;; (at your option) any later version.
9 ;;; This program is distributed in the hope that it will be useful,
10 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ;;; GNU General Public License for more details.
14 ;;; You should have received a copy of the GNU General Public License
15 ;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
18 (define start-server #f)
19 (define check-connections #f)
20 (define clean-closed-connections #f)
21 (define eval-from-clients #f)
22 (define stop-server #f)
24 (let ((server-socket #f) (clients '())
27 (lambda* (#:key (port #f) (pipes #f))
29 (set! server-socket (socket PF_INET SOCK_STREAM 0))
30 (setsockopt server-socket SOL_SOCKET SO_REUSEADDR 1)
31 (bind server-socket AF_INET INADDR_ANY port)
32 (listen server-socket 5))
34 (set! server-pipes pipes)))
35 (cond ((not (game-running?))
39 (set! clean-closed-connections
41 (cond ((null? conns) '())
43 (let* ((cli (car conns)) (sock (car cli)))
44 (cond ((port-closed? sock)
45 (clean-closed-connections (cdr conns)))
47 (cons cli (clean-closed-connections (cdr conns))))))))))
49 (set! check-connections
51 (set! clients (clean-closed-connections clients))
54 (cond ((char-ready? server-socket)
55 (set! clients (cons (accept server-socket) clients)))))
56 (lambda (key . args) #f))))
58 (set! eval-from-clients
62 (let ((sock (car cli)))
63 (cond ((char-ready? sock)
66 (let ((exp (read sock)))
67 (format #t "~a~%" exp)
68 (cond ((eof-object? exp)
71 (format #t "~a~%" (primitive-eval (car exp)))
72 (format sock "~a" (primitive-eval (car exp)))))))
74 (let ((fmt (string-concatenate (list (cadr args) "~%")))
75 (params (caddr args)))
77 (apply format (cons sock (cons fmt params)))
78 (format sock fmt)))))))))
85 (set! server-socket #f)))
86 (for-each (lambda (cli) (close (car cli))) clients)