Index: docs/code/module-hierarchy.dot
==================================================================
--- docs/code/module-hierarchy.dot
+++ docs/code/module-hierarchy.dot
@@ -23,45 +23,48 @@
 
   subgraph cluster_megatest {
     label="megatest";
 
     rmtmod [label="rmt mod"];
-// template-mod.scm
-"sqlite3" -> "template-mod";
-"commonmod" -> "template-mod";
-// http-transportmod.scm
-"commonmod" -> "http-transportmod";
-"stml2" -> "http-transportmod";
-"apimod" -> "http-transportmod";
-"dbmod" -> "http-transportmod";
-"testsmod" -> "http-transportmod";
-"mtargs" -> "http-transportmod";
-"mtconfigf" -> "http-transportmod";
-// apimod.scm
-"sqlite3" -> "apimod";
-"commonmod" -> "apimod";
-"dbmod" -> "apimod";
-"servermod" -> "apimod";
-// launchmod.scm
-"sqlite3" -> "launchmod";
-"commonmod" -> "launchmod";
-// keysmod.scm
-"sqlite3" -> "keysmod";
-"srfi-13" -> "keysmod";
+// archivemod.scm
+"sqlite3" -> "archivemod";
+"commonmod" -> "archivemod";
+// clientmod.scm
+"sqlite3" -> "clientmod";
+"commonmod" -> "clientmod";
+// configfmod.scm
+"sqlite3" -> "configfmod";
+// subrunmod.scm
+"sqlite3" -> "subrunmod";
+"commonmod" -> "subrunmod";
+"mtconfigf" -> "subrunmod";
+// ezstepsmod.scm
+"sqlite3" -> "ezstepsmod";
+"commonmod" -> "ezstepsmod";
+// itemsmod.scm
+"sqlite3" -> "itemsmod";
+"commonmod" -> "itemsmod";
+// gutilsmod.scm
+"iup" -> "gutilsmod";
+"canvas-draw" -> "gutilsmod";
 // testsmod.scm
 "sqlite3" -> "testsmod";
 "commonmod" -> "testsmod";
 "servermod" -> "testsmod";
 "itemsmod" -> "testsmod";
 "dbmod" -> "testsmod";
 "mtconfigf" -> "testsmod";
 "mtargs" -> "testsmod";
-// vgmod.scm
-"sqlite3" -> "vgmod";
-// clientmod.scm
-"sqlite3" -> "clientmod";
-"commonmod" -> "clientmod";
+// runconfigmod.scm
+"sqlite3" -> "runconfigmod";
+"commonmod" -> "runconfigmod";
+// keysmod.scm
+"sqlite3" -> "keysmod";
+"srfi-13" -> "keysmod";
+// launchmod.scm
+"sqlite3" -> "launchmod";
+"commonmod" -> "launchmod";
 // megamod.scm
 "mtconfigf" -> "megamod";
 "spiffy" -> "megamod";
 "stml2" -> "megamod";
 "mtargs" -> "megamod";
@@ -79,41 +82,26 @@
 "testsmod" -> "megamod";
 "servermod" -> "megamod";
 "subrunmod" -> "megamod";
 "itemsmod" -> "megamod";
 "runsmod" -> "megamod";
-// subrunmod.scm
-"sqlite3" -> "subrunmod";
-"commonmod" -> "subrunmod";
-"mtconfigf" -> "subrunmod";
-// tasksmod.scm
-"sqlite3" -> "tasksmod";
-"commonmod" -> "tasksmod";
-"mtconfigf" -> "tasksmod";
-"pgdbmod" -> "tasksmod";
-// dbmod.scm
-"sqlite3" -> "dbmod";
-"commonmod" -> "dbmod";
-"keysmod" -> "dbmod";
-"files" -> "dbmod";
-"tasksmod" -> "dbmod";
-"odsmod" -> "dbmod";
-"mtargs" -> "dbmod";
-"mtconfigf" -> "dbmod";
-// servermod.scm
-"sqlite3" -> "servermod";
-"commonmod" -> "servermod";
-"dbmod" -> "servermod";
-"tasksmod" -> "servermod";
-"mtargs" -> "servermod";
-"mtconfigf" -> "servermod";
-// ezstepsmod.scm
-"sqlite3" -> "ezstepsmod";
-"commonmod" -> "ezstepsmod";
 // odsmod.scm
 "sqlite3" -> "odsmod";
 "commonmod" -> "odsmod";
+// envmod.scm
+"sqlite3" -> "envmod";
+"commonmod" -> "envmod";
+// http-transportmod.scm
+"commonmod" -> "http-transportmod";
+"stml2" -> "http-transportmod";
+"apimod" -> "http-transportmod";
+"dbmod" -> "http-transportmod";
+"testsmod" -> "http-transportmod";
+"mtargs" -> "http-transportmod";
+"mtconfigf" -> "http-transportmod";
+// processmod.scm
+"sqlite3" -> "processmod";
 // mtmod.scm
 "sqlite3" -> "mtmod";
 "mtargs" -> "mtmod";
 "mtconfigf" -> "mtmod";
 "commonmod" -> "mtmod";
@@ -123,15 +111,14 @@
 "servermod" -> "mtmod";
 "stml2" -> "mtmod";
 "subrunmod" -> "mtmod";
 "tasksmod" -> "mtmod";
 "testsmod" -> "mtmod";
-// treemod.scm
-"iup" -> "treemod";
-// itemsmod.scm
-"sqlite3" -> "itemsmod";
-"commonmod" -> "itemsmod";
+// pgdbmod.scm
+"mtconfigf" -> "pgdbmod";
+"mtargs" -> "pgdbmod";
+"commonmod" -> "pgdbmod";
 // runsmod.scm
 "base64" -> "runsmod";
 "commonmod" -> "runsmod";
 "dbmod" -> "runsmod";
 "itemsmod" -> "runsmod";
@@ -143,33 +130,24 @@
 "servermod" -> "runsmod";
 "stml2" -> "runsmod";
 "subrunmod" -> "runsmod";
 "tasksmod" -> "runsmod";
 "testsmod" -> "runsmod";
-// processmod.scm
-"sqlite3" -> "processmod";
-// rmtmod.scm
-"sqlite3" -> "rmtmod";
-"ulex" -> "rmtmod";
-"commonmod" -> "rmtmod";
-"itemsmod" -> "rmtmod";
-"apimod" -> "rmtmod";
-"dbmod" -> "rmtmod";
-// commonmod.scm
-"sqlite3" -> "commonmod";
-"pkts" -> "commonmod";
-"mtconfigf" -> "commonmod";
-"mtargs" -> "commonmod";
-// pgdbmod.scm
-"mtconfigf" -> "pgdbmod";
-"mtargs" -> "pgdbmod";
-"commonmod" -> "pgdbmod";
-// envmod.scm
-"sqlite3" -> "envmod";
-"commonmod" -> "envmod";
-// configfmod.scm
-"sqlite3" -> "configfmod";
+// apimod.scm
+"sqlite3" -> "apimod";
+"commonmod" -> "apimod";
+"dbmod" -> "apimod";
+"servermod" -> "apimod";
+// dbmod.scm
+"sqlite3" -> "dbmod";
+"commonmod" -> "dbmod";
+"keysmod" -> "dbmod";
+"files" -> "dbmod";
+"tasksmod" -> "dbmod";
+"odsmod" -> "dbmod";
+"mtargs" -> "dbmod";
+"mtconfigf" -> "dbmod";
 // dcommonmod.scm
 "sqlite3" -> "dcommonmod";
 "mtconfigf" -> "dcommonmod";
 "gutilsmod" -> "dcommonmod";
 "commonmod" -> "dcommonmod";
@@ -182,19 +160,43 @@
 "dbmod" -> "dcommonmod";
 "canvas-draw" -> "dcommonmod";
 "canvas-draw-iup" -> "dcommonmod";
 "iup" -> "dcommonmod";
 "mtargs" -> "dcommonmod";
-// gutilsmod.scm
-"iup" -> "gutilsmod";
-"canvas-draw" -> "gutilsmod";
-// runconfigmod.scm
-"sqlite3" -> "runconfigmod";
-"commonmod" -> "runconfigmod";
-// archivemod.scm
-"sqlite3" -> "archivemod";
-"commonmod" -> "archivemod";
+// tasksmod.scm
+"sqlite3" -> "tasksmod";
+"commonmod" -> "tasksmod";
+"mtconfigf" -> "tasksmod";
+"pgdbmod" -> "tasksmod";
+// template-mod.scm
+"sqlite3" -> "template-mod";
+"commonmod" -> "template-mod";
+// servermod.scm
+"sqlite3" -> "servermod";
+"commonmod" -> "servermod";
+"dbmod" -> "servermod";
+"tasksmod" -> "servermod";
+"mtargs" -> "servermod";
+"mtconfigf" -> "servermod";
+// treemod.scm
+"iup" -> "treemod";
+// commonmod.scm
+"sqlite3" -> "commonmod";
+"pkts" -> "commonmod";
+"mtconfigf" -> "commonmod";
+"mtargs" -> "commonmod";
+// vgmod.scm
+"sqlite3" -> "vgmod";
+// rmtmod.scm
+"sqlite3" -> "rmtmod";
+"ulex" -> "rmtmod";
+"commonmod" -> "rmtmod";
+"itemsmod" -> "rmtmod";
+"apimod" -> "rmtmod";
+"dbmod" -> "rmtmod";
     
 }
-  
+
+{ rank=same; eggs; sqlite3, spiffy, files, base64, iup, "canvas-draw" }
+
 }
 

Index: docs/code/postamble.dot
==================================================================
--- docs/code/postamble.dot
+++ docs/code/postamble.dot
@@ -1,5 +1,7 @@
     
 }
-  
+
+{ rank=same; eggs; sqlite3, spiffy, files, base64, iup, "canvas-draw" }
+
 }
 

Index: ulex/ulex.scm
==================================================================
--- ulex/ulex.scm
+++ ulex/ulex.scm
@@ -82,10 +82,11 @@
 
 (define (ping udata host-port)
   (let* ((cookie (make-cookie udata))
 	 (res (send-receive udata host-port 'ping "just pinging" (conc (current-seconds)))))
     (print "got res=" res)
+    (equal? res cookie)
     ))
 
 ;;======================================================================
 ;; network utilities
 ;;======================================================================