Some restructuring of the client code:

 * Introduced three separate 'handlers' for the connection, channel and execution 'layers'.
 * Support for asynchronous retrieval of response or completion status.
 * Channel methods no longer included in execution layers command id count.



git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@562212 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 64 insertions, 0 deletions

diff --git a/cpp/src/qpid/client/CompletionTracker.cpp b/cpp/src/qpid/client/CompletionTracker.cpp
new file mode 100644
index 0000000000..996971dbd2
--- /dev/null
+++ b/cpp/src/qpid/client/CompletionTracker.cpp
@@ -0,0 +1,64 @@
+/*
+ *
+ * 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 "CompletionTracker.h"
+
+using qpid::client::CompletionTracker;
+using namespace qpid::framing;
+using namespace boost;
+
+CompletionTracker::CompletionTracker() {}
+CompletionTracker::CompletionTracker(const SequenceNumber& m) : mark(m) {}
+
+
+void CompletionTracker::completed(const SequenceNumber& _mark)
+{   
+    sys::Mutex::ScopedLock l(lock);
+    mark = _mark;
+    while (!listeners.empty() && !(listeners.front().first > mark)) {
+        Listener f(listeners.front().second);
+        {
+            sys::Mutex::ScopedUnlock u(lock);
+            f();
+        }
+        listeners.pop();
+    }
+}
+
+void CompletionTracker::listen(const SequenceNumber& point, Listener listener)
+{
+    if (!add(point, listener)) {
+        listener();
+    }
+}
+
+bool CompletionTracker::add(const SequenceNumber& point, Listener listener)
+{
+    sys::Mutex::ScopedLock l(lock);
+    if (point < mark) {
+        return false;
+    } else {
+        listeners.push(make_pair(point, listener));
+        return true;
+    }
+}
+
+