Fixed race conditions in cluster.

Execute all cluster logic in frameDeliverQueue thread,
decoding only in eventDeliverQueue thread.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@751557 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 57 insertions, 0 deletions

diff --git a/cpp/src/qpid/cluster/Decoder.h b/cpp/src/qpid/cluster/Decoder.h
new file mode 100644
index 0000000000..acde4258a2
--- /dev/null
+++ b/cpp/src/qpid/cluster/Decoder.h
@@ -0,0 +1,57 @@
+#ifndef QPID_CLUSTER_DECODER_H
+#define QPID_CLUSTER_DECODER_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 "types.h"
+#include "qpid/framing/FrameDecoder.h"
+#include <boost/function.hpp>
+#include <map>
+
+namespace qpid {
+namespace cluster {
+
+class EventFrame;
+class EventHeader;
+
+/**
+ * A map of decoders for connections.
+ */
+class Decoder
+{
+  public:
+    typedef boost::function<void(const EventFrame&)> FrameHandler;
+
+    Decoder(FrameHandler fh) : callback(fh) {}
+    void decode(const EventHeader& eh, const char* data);
+    void erase(const ConnectionId&);
+    framing::FrameDecoder& get(const ConnectionId& c) { return map[c]; }
+
+  private:
+    typedef std::map<ConnectionId, framing::FrameDecoder> Map;
+    Map map;
+    void process(const EventFrame&);
+    FrameHandler callback;
+};
+}} // namespace qpid::cluster
+
+#endif  /*!QPID_CLUSTER_DECODER_H*/