1 files changed, 4 insertions, 3 deletions
diff --git a/cpp/src/qpid/sys/OutputControl.h b/cpp/src/qpid/sys/OutputControl.h
index e9e6c57a9b..d813428b67 100644
--- a/cpp/src/qpid/sys/OutputControl.h
+++ b/cpp/src/qpid/sys/OutputControl.h
@@ -7,9 +7,9 @@
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
- * 
+ *
  *   http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -27,10 +27,11 @@
 namespace qpid {
 namespace sys {
 
-    class OutputControl 
+    class OutputControl
     {
     public:
         virtual ~OutputControl() {}
+        virtual void abort() = 0;
         virtual void activateOutput() = 0;
         virtual void giveReadCredit(int32_t credit) = 0;
     };