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 (set! server-socket (socket PF_INET SOCK_STREAM 0))
28 ; (fcntl server-socket F_SETFL (logior O_NONBLOCK (fcntl server-socket F_GETFL)))
29 (setsockopt server-socket SOL_SOCKET SO_REUSEADDR 1)
30 (bind server-socket AF_INET INADDR_ANY port)
31 (listen server-socket 5)))
33 (set! clean-closed-connections
35 (cond ((null? conns) '())
37 (let* ((cli (car conns)) (sock (car cli)))
38 (cond ((port-closed? sock)
39 (clean-closed-connections (cdr conns)))
41 (cons cli (clean-closed-connections (cdr conns))))))))))
43 (set! check-connections
45 (set! clients (clean-closed-connections clients))
47 ; (lambda () (set! clients (cons (accept server-socket) clients)))
49 (cond ((char-ready? server-socket)
50 (set! clients (cons (accept server-socket) clients)))))
51 (lambda (key . args) #f))))
53 (set! eval-from-clients
57 (let ((sock (car cli)))
58 (cond ((char-ready? sock)
61 (let ((exp (read sock)))
62 (cond ((eof-object? exp)
65 (format sock "~a~%" (primitive-eval exp))))))
67 (let ((fmt (string-concatenate (list (cadr args) "~%")))
68 (params (caddr args)))
70 (apply format (cons sock (cons fmt params)))
71 (format sock fmt)))))))))
78 (set! server-socket #f)))
79 (for-each (lambda (cli) (close (car cli))) clients)