=== modified file 'src/comm.cc'
--- src/comm.cc	2008-04-03 21:12:16 +0000
+++ src/comm.cc	2008-04-08 16:36:56 +0000
@@ -176,7 +176,7 @@
 
 	ccb->xerrno = 0;
 //	delete ccb->callback;
-	ccb->callback = NULL;
+	ccb->callback->cancel("Aborted");
 	ccb->callback = NULL;
 }