Initial implementation for tx class.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@469242 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 46 insertions, 0 deletions

diff --git a/cpp/src/qpid/broker/AccumulatedAck.cpp b/cpp/src/qpid/broker/AccumulatedAck.cpp
new file mode 100644
index 0000000000..86e1a5e786
--- /dev/null
+++ b/cpp/src/qpid/broker/AccumulatedAck.cpp
@@ -0,0 +1,46 @@
+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * Licensed 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/broker/AccumulatedAck.h"
+
+using std::less_equal;
+using std::bind2nd;
+using namespace qpid::broker;
+
+void AccumulatedAck::update(u_int64_t tag, bool multiple){
+    if(multiple){
+        if(tag > range) range = tag;
+        //else don't care, it is already counted
+    }else if(tag < range){
+        individual.push_back(tag);
+    }
+}
+
+void AccumulatedAck::consolidate(){
+    individual.sort();
+    //remove any individual tags that are covered by range
+    individual.remove_if(bind2nd(less_equal<u_int64_t>(), range));
+}
+
+void AccumulatedAck::clear(){
+    range = 0;
+    individual.clear();
+}
+
+bool AccumulatedAck::covers(u_int64_t tag) const{
+    return tag < range || find(individual.begin(), individual.end(), tag) != individual.end();
+}