X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;ds=sidebyside;f=actors.scm;h=633445aebd6df810b59dba4c3eed9769c03c657b;hb=0dadc9967c78efaafcfbbc48897163e6bfc93c8b;hp=fa6f1bbc5a840210339a9d5d0f069c7ccbcde011;hpb=fbacbb91961bea3410f457012075aabd91c168c1;p=actors.git

diff --git a/actors.scm b/actors.scm
index fa6f1bb..633445a 100644
--- a/actors.scm
+++ b/actors.scm
@@ -31,11 +31,13 @@
     (if (null? behaviour)
         (print "Warning: discarded message " message " to unknown actor " address)
         (let ((value (apply behaviour (cons address message))))
-          (match value
-            ('done (hash-table-delete! actor-table address))
-            ('sleep 'do-nothing)
+          (case value
+            ((sleep) 'do-nothing)
+            ((done) (hash-table-delete! actor-table address))
             (else
-             hash-table-set! actor-table address value))))))
+             (if trace-enabled
+                 (print "Updating behaviour of " address))
+             (hash-table-set! actor-table address value)))))))
 
 ;;;
 ;;; FIFO queue implementation
@@ -119,4 +121,3 @@
 (define (send-and-run actor . message)
   (apply send-message (cons actor message))
   (run))
-