;;; Mudsync --- Live hackable MUD
;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
+;;; Copyright © 2012, 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Mudsync.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mudsync. If not, see <http://www.gnu.org/licenses/>.
-(use-modules (8sync systems actors)
- (8sync systems actors debug)
- (8sync agenda)
- (ice-9 format)
- (ice-9 match)
- (oop goops))
-
-
-\f
-;;; Networking
-;;; ==========
-
-(define %default-server #f)
-(define %default-port 8889)
-
-(define-class <network-manager> (<actor>)
- (server-socket #:accessor nm-server-socket)
- ;; mapping of client -> client-id
- (clients #:accessor nm-clients
- #:init-thunk make-hash-table)
- ;; send input to this actor
- (send-input-to #:getter nm-send-input-to
- #:init-keyword #:send-input-to)
- (message-handler
- #:init-value
- (make-action-dispatch
- ((start-listening actor message)
- (nm-install-socket actor (message-ref message 'server %default-server)
- (message-ref message 'port %default-port)))
- ((send-to-client actor message client data)
- (nm-send-to-client-id actor client data)))))
-
-(define-method (nm-close-everything (nm <network-manager>) remove-from-agenda)
- "Shut it down!"
- ;; close all clients
- (hash-for-each
- (lambda (_ client)
- (close client)
- (if remove-from-agenda
- (8sync-port-remove client)))
- (nm-clients nm))
- ;; reset the clients list
- (set! (nm-clients) (make-hash-table))
- ;; close the server
- (close (nm-server-socket nm))
- (if remove-from-agenda
- (8sync-port-remove (nm-server-socket nm))))
-
-;; Maximum number of backlogged connections when we listen
-(define %maximum-backlog-conns 128) ; same as SOMAXCONN on Linux 2.X,
- ; says the intarwebs
-
-(define (nm-install-socket nm server port)
- "Install socket on SERVER with PORT"
- (let ((s (socket PF_INET ; ipv4
- SOCK_STREAM ; two-way connection-based byte stream
- 0))
- (addr (if server
- (inet-pton AF_INET server)
- INADDR_LOOPBACK)))
- ;; Totally mimed from the Guile manual. Not sure if we need this, but:
- ;; http://www.unixguide.net/network/socketfaq/4.5.shtml
- (setsockopt s SOL_SOCKET SO_REUSEADDR 1) ; reuse port even if port is busy
- ;; Connecting to a non-specific address:
- ;; (bind s AF_INET INADDR_ANY port)
- ;; Should this be an option? Guess I don't know why we'd need it
- ;; @@: If we wanted to support listening on a particular hostname,
- ;; could see 8sync's irc.scm...
- (bind s AF_INET addr port)
- ;; Listen to connections
- (listen s %maximum-backlog-conns)
-
- ;; Throw a system-error rather than block on an (accept)
- ;; that has nothing to do
- (fcntl s F_SETFL
- (logior O_NONBLOCK
- (fcntl s F_GETFL)))
-
- ;; @@: This is used in Guile's http server under the commit:
- ;; * module/web/server/http.scm (http-open): Ignore SIGPIPE. Keeps the
- ;; server from dying in some circumstances.
- ;; (sigaction SIGPIPE SIG_IGN)
- ;; Will this break other things that use pipes for us though?
-
- (set! (nm-server-socket nm) s)
-
- (format #t "Listening for clients in pid: ~s\n" (getpid))
- (8sync-port s #:read (lambda (s) (nm-new-client nm s)))
- ;; TODO: set up periodic close of idle connections?
- ))
-
-(define (nm-new-client nm s)
- "Handle new client coming in to socket S"
- (let* ((client-connection (accept s))
- (client-details (cdr client-connection))
- (client (car client-connection)))
- (format #t "New client: ~s\n" client-details)
- (format #t "Client address: ~s\n"
- (gethostbyaddr
- (sockaddr:addr client-details)))
-
- (let ((client-id (big-random-number)))
- (hash-set! (nm-clients nm) client-id client)
- (8sync-port client #:read (nm-make-client-receive nm client-id)))))
-
-(define (nm-make-client-receive nm client-id)
- "Make a method to receive client data"
- (let ((buffer '()))
- (define (reset-buffer)
- (set! buffer '()))
- (define (should-read-char client)
- (and (not (port-closed? client))
- (char-ready? client)
- (not (eof-object? (peek-char client)))))
- (define (receive-handler client)
- (while (should-read-char client)
- (set! buffer (cons (read-char client) buffer))
- (match buffer
- (;; @@: Do we need the "char?"
- (#\newline #\return (? char? line-chars) ...)
- (let ((ready-line (list->string (reverse line-chars))))
- ;; reset buffer
- (set! buffer '())
- ;; run it
- (nm-handle-line nm client client-id ready-line)))
- (_ #f)))
- ;; Shut things down on closed port or EOF object
- (cond
- ((port-closed? client)
- (nm-handle-port-closed nm client client-id))
- ((and (char-ready? client)
- (eof-object? (peek-char client)))
- (nm-handle-port-eof nm client client-id))))
- receive-handler))
-
-(define (nm-handle-port-closed nm client client-id)
- "Handle a closed port"
- (format #t "DEBUG: handled closed port ~x\n" client-id)
- (8sync-port-remove client)
- (hash-remove! (nm-clients nm) client-id))
-
-(define-method (nm-handle-port-eof nm client client-id)
- "Handle seeing an EOF on port"
- (format #t "DEBUG: handled eof-object on port ~x\n" client-id)
- (close client)
- (8sync-port-remove client)
- (hash-remove! (nm-clients nm) client-id))
-
-(define-method (nm-handle-line nm client client-id line)
- "Handle an incoming line of input from a client"
- (<- nm (nm-send-input-to nm) 'client-input
- #:data line
- #:client client-id))
-
-(define-method (nm-send-to-client-id nm client-id data)
- "Send DATA to TO-CLIENT id"
- (display data
- (hash-ref (nm-clients nm) client-id)))
-
-; (ez-run-hive hive (list (bootstrap-message hive (actor-id nm) 'start-listening)))
-
-
-;; (define-method (nm-close-port (nm <network-manager>)))
-
-
-\f
-;;; The game master! Runs the world.
-;;; =================================
-
-;; @@: We could call this a "world builder" instead...
-;; I kinda like calling it a GM though.
-
-(define-class <game-master> (<actor>)
- ;; The directory is a "namespaced" directory of all "special" content
- ;; in the game, identifiable by some special key.
- ;; (The namespace is simply a cons of (namespace . special-symbol))
- (directory #:init-thunk make-hash-table)
- ;; A mapping of client ids to in-game actors
- (client-to-actor #:init-thunk make-hash-table)
- ;; Network manager
- (network-manager #:accessor gm-network-manager
- #:init-val #f)
-
- (message-handler
- #:init-value
- (make-action-dispatch
- (init-world (wrap-apply gm-init-world))
- (client-input (wrap-apply gm-handle-client-input)))))
-
-
-(define (gm-init-world gm message)
- ;; Load database
- ;; TODO
-
- ;; Init basic rooms / structure
- ;; TODO
-
- ;; Restore database-based actors
- ;; TODO
-
- ;; Set up the network
- (gm-setup-network gm))
-
-(define (gm-setup-network gm)
- ;; Create a default network manager if none available
- (set! (gm-network-manager gm)
- (create-actor* gm <network-manager> "netman"
- #:send-input-to (actor-id gm)))
-
- ;; TODO: Add host and port options
- (<-wait gm (gm-network-manager gm) 'start-listening))
-
-(define (gm-handle-client-input actor message)
- "Handle input from a client."
- (define client-id (message-ref message 'client))
- (define input (message-ref message 'data))
- (format #t "From ~s: ~s\n" client-id input)
- (<- actor (gm-network-manager actor) 'send-to-client
- #:client client-id
- #:data "Thanks, we got it!\n"))
-
-(define-method (gm-setup-database (gm <game-master>))
- 'TODO)
-
-(define-method (gm-setup-rooms-etc (gm <game-master>))
- 'TODO)
-
-
-;; Debugging stuff
-(define %test-gm #f)
-
-(define (run-demo . args)
- (define hive (make-hive))
- (define gm
- (hive-create-actor-gimmie* hive <game-master> "gm"))
- (set! %test-gm gm)
- ;; @@: Boy, wouldn't it be nice if the agenda could do things
- ;; on interrupt :P
- (ez-run-hive hive
- (list (bootstrap-message hive (actor-id gm) 'init-world))))
+(define-module (mudsync)
+ #:use-module (8sync systems actors)
+ #:use-module (8sync agenda)
+ #:use-module (ice-9 format)
+ #:use-module (ice-9 match)
+ #:use-module (oop goops))
+
+
+;;; Composite model stuff borrowed from Guix. Thanks, Ludo!
+(eval-when (eval load compile)
+ (begin
+ (define %public-modules
+ '(game-master
+ gameobj
+ networking
+ command
+ player
+ room
+ run-game))
+
+ (for-each (let ((i (module-public-interface (current-module))))
+ (lambda (m)
+ (module-use! i (resolve-interface `(mudsync ,m)))))
+ %public-modules)))
projects / mudsync.git / blobdiff