*** empty log message ***

mcast-channels.scm

@@ -0,0 +1,70 @@
+(define-record-type :mcast-channel
+  (really-make-mcast-channel msg-in fan-out reply-ch)
+  mcast-channel?
+  (msg-in mcast-channel-msg-in)
+  (fan-out mcast-channel-fan-out)
+  (reply-ch mcast-channel-reply-ch))
+
+(define-record-type :mcast-port
+  (really-make-mcast-port channel)
+  mcast-port?
+  (channel channel->mcast-port))
+
+(define-enumerated-type mcast-cmd :mcast-cmd
+  mcast-cmd?
+  the-mcast-cmds
+  mcast-cmd-name
+  mcast-cmd-index
+  (new-port new-sink))
+
+(define (tee from-server to-sink)
+  (let ((to-mbox (make-channel)))
+    (spawn (lambda ()
+	     (let drink-tee ((msg (receive from-server)))
+	       (cond 
+		((channel? to-sink) 
+		 (send to-sink msg)
+		 (send to-mbox msg)))
+	       (drink-tee (receive from-server))))
+	   'mcast-channel/tee)
+    to-mbox))
+
+(define (sink from-server)
+  (tee from-server #f))
+
+(define (make-mcast-channel)
+  (let ((m-in (make-channel)) 
+	(f-out (make-channel)) 
+	(r-ch (make-channel)))
+    (spawn (lambda () 
+	     (sink f-out)
+	     (let lp ((msg (receive m-in)))
+	       (cond
+		((eq? (mcast-cmd-name msg) 'new-port) 
+		 (let ((new-f-out (make-channel)))
+		   (send r-ch (tee new-f-out f-out))
+		   (set! f-out new-f-out)))
+		((eq? (mcast-cmd-name msg) 'new-sink) 
+		 (send r-ch (sink f-out)))
+		(else (send f-out msg)))
+	       (lp (receive m-in))))
+	   'mcast-channel/server)
+    (really-make-mcast-channel m-in f-out r-ch)))
+
+(define (mcast mcast-ch msg)
+  (send (mcast-channel-msg-in mcast-ch) msg))
+
+(define (mcast-port mcast-ch)
+  (send (mcast-channel-msg-in mcast-ch) (mcast-cmd new-port))
+  (really-make-mcast-port (receive (mcast-channel-reply-ch mcast-ch))))
+
+(define (mcast-port-receive-rv mc-port)
+  (receive-rv (channel->mcast-port mc-port)))
+
+(define (mcast-port-receive mc-port)
+  (sync (mcast-port-receive-rv mc-port)))
+
+;; attach the sink to the first port after the server
+(define (mcast-new-sink mcast-ch)
+  (send (mcast-channel-msg-in mcast-ch) (mcast-cmd new-sink))
+  (receive (mcast-channel-reply-ch mcast-ch)))

test-jobd.scm

@@ -0,0 +1,34 @@
+(define j-cwd "/home/johannes")
+(define j-env (env->alist))
+(define j-cmd "find /afs -name nonexistant")
+(define j-descr (make-job-desc j-cwd j-env j-cmd))
+
+(define j-cmds 
+  (list (list "leo-dict" "detractors")
+	(list "ipcs" "-a")
+	(list "leo-dict" "schism")
+	(list "find" "studium" "-name" "*.txt") 
+	(list "/bin/sh" "-c" "/bin/cat /var/tmp/*")
+	(list "ls" "-l") 
+	(list "ps" "-eF"))) 
+
+(define j-descrs 
+  (let ((jdes (lambda (j-cmd) (make-job-desc j-cwd j-env j-cmd))))
+    (map jdes j-cmds)))
+
+(define (do-some-jobs)
+  (let ((ch (cml-sync-ch/make-channel))
+	(start-parallel (jobd/set-jobbers! 3))
+	(jobd (jobd/make-jobd)))
+    (spawn 
+      (lambda ()
+	(let* ((res-rvs (map jobd/execute j-descrs (circular-list jobd)))
+	       (j-res (map cml-rv/sync res-rvs)))
+	  (map display-job-output j-res)
+	  (cml-sync-ch/send ch "done.")))
+      'test-jobd)
+    (sleep 50)
+    (jobd/stop jobd)
+    (sleep 40000)
+    (jobd/continue jobd)
+    (cml-sync-ch/receive ch)))

test-mcast-channels.scm

@@ -0,0 +1,21 @@
+(define (test-it) 
+  (let* ((ls (list "a" "b" "c" "d" "e" "f"))
+	 (m-ch (make-mcast-channel))
+	 (a-port (mcast-port m-ch))
+	 (b-port (mcast-port m-ch))
+	 (c-port (mcast-port m-ch))
+	 (d-port (mcast-port m-ch))
+	 (e-port (mcast-port m-ch))
+	 (f-port (mcast-port m-ch))
+	 (mcast-ports (list a-port b-port c-port d-port e-port f-port)))
+    (for-each (lambda (msg) 
+		(spawn (lambda () 
+			 (mcast m-ch msg)))) 
+	      ls)
+    (for-each (lambda (mc-port) 
+		(spawn (lambda () 
+			 (let rcv-msg ((msg (mcast-port-receive mc-port)))
+			   (display msg) 
+			   (newline)
+			   (rcv-msg (mcast-port-receive mc-port))))))
+	      mcast-ports)))