From: Tim Vaughan <plugd@thelambdalab.xyz>
Date: Sat, 1 May 2021 21:11:34 +0000 (+0200)
Subject: Updated examples to be compatible with new architecture.
X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?p=sam.git;a=commitdiff_plain;h=5d2d076345efb45ced333e832d1cbf766bcd5e8a

Updated examples to be compatible with new architecture.
---

diff --git a/chat_client.scm b/chat_client.scm
index 947418f..d500579 100644
--- a/chat_client.scm
+++ b/chat_client.scm
@@ -1,5 +1,4 @@
-(import sam
-        matchable
+(import matchable
         srfi-13
         (chicken process-context))
 
@@ -69,25 +68,3 @@
 (define (main-beh self system)
   (send-message (make-actor (make-client-beh system)) 'start)
   'done)
-
-(define (print-usage)
-  (print "Actor-driven chat client.\n")
-  (print "Usage: chat_client -h")
-  (print "       chat_client [-p port_num] [-n host_name]"))
-
-(let loop ((args (cdr (argv)))
-           (host "localhost")
-           (port 8000))
-  (match args
-    (((or "-h" "--help"))
-     (print-usage))
-    (((or "-p" "--port") pstr rest ...)
-     (loop rest host (string->number pstr)))
-    (((or "-n" "--hostname") hstr rest ...)
-     (loop rest hstr port))
-    (()
-     (boot-sam host port main-beh))
-    (else
-     (print "Unrecognised argument '" (car args) "'.\n")
-     (print-usage))))
-
diff --git a/sam.scm b/sam.scm
index 93906b9..1d23712 100644
--- a/sam.scm
+++ b/sam.scm
@@ -11,6 +11,7 @@
         (chicken port)
         (chicken process-context)
         (chicken file)
+        (chicken condition)
         matchable
         srfi-18 ; threads
         srfi-69 ; hash-table
@@ -203,7 +204,15 @@
 (define (boot-sam)
   (start-console)
   (start-network-listener)
-  (send-message (make-actor main-beh) (make-actor system-beh))
+  (let ((system (make-actor system-beh))
+        (main #f))
+    (condition-case
+        (begin
+          (set! main (make-actor main-beh)))
+      ((exn)
+       (print "Error starting main actor. Is main-beh defined?")
+       (exit 1)))
+    (send-message main system))
   (start-scheduler))
 
 (define (print-usage)
@@ -222,14 +231,14 @@
      (loop rest))
     (((or "-n" "--hostname") hstr rest ...)
      (set! sam-host hstr)
-     (loop rest)
-    (((? file-exists? filename) rest ...))
+     (loop rest))
+    (((? file-exists? filename) rest ...)
      (print* "Loading " filename "...")
      (load filename)
      (print " done.")
      (loop rest))
     (()
-     (boot-sam host port main-beh))
+     (boot-sam))
     (else
      (print "Unrecognised argument '" (car args) "'.\n")
      (print-usage))))
diff --git a/simple_test.scm b/simple_test.scm
index cd6149b..f20d203 100644
--- a/simple_test.scm
+++ b/simple_test.scm
@@ -1,5 +1,4 @@
-(import sam
-        matchable
+(import matchable
         (chicken process-context)
         srfi-18)
 
@@ -7,24 +6,9 @@
   (send-message system 'print "Hello, what is your name?")
   (send-message system 'read
                 (make-actor (lambda (self . message)
-                              (print message)
                               (match message
                                 ((name)
                                  (send-message system 'print "Hello, " name "!")
                                  'done)))))
 
   (send-message-later system 10 'print "Boo!"))
-
-(let loop ((args (cdr (argv)))
-           (host "localhost")
-           (port 8000))
-  (match args
-    (((or "-h" "--help"))
-     (print "Usage: simple_test [ -h ] [ --port PORT ] [ --hostname host ]"))
-    (((or "-p" "--port") pstr rest ...)
-     (loop rest host (string->number pstr)))
-    (("--hostname" hstr rest ...)
-     (loop rest hstr port))
-    (()
-     (print "-- Starting SAM on " host ":" port " --\n")
-     (boot-sam host port main-beh))))