1 files changed, 48 insertions, 0 deletions
diff --git a/cpp/src/qpid/client/Bounds.h b/cpp/src/qpid/client/Bounds.h
new file mode 100644
index 0000000000..db18becce3
--- /dev/null
+++ b/cpp/src/qpid/client/Bounds.h
@@ -0,0 +1,48 @@
+#ifndef QPID_CLIENT_BOUNDSCHECKING_H
+#define QPID_CLIENT_BOUNDSCHECKING_H
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * 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
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include "qpid/sys/Monitor.h"
+
+namespace qpid{
+namespace client{
+
+class Bounds
+{
+  public:
+    Bounds(size_t maxSize);
+    bool expand(size_t, bool block);
+    void reduce(size_t);
+    size_t getCurrentSize();
+
+  private:
+    friend std::ostream& operator<<(std::ostream&, const Bounds&);
+    sys::Monitor lock;
+    const size_t max;
+    size_t current;
+};
+
+std::ostream& operator<<(std::ostream&, const Bounds&);
+
+
+}}
+
+#endif