QPID-4942: Only install include files that are used by the supported API

- Since we removed a whole lot of old API code we can drastically cut
  down on the header files that we export.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1507469 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 57 insertions, 0 deletions

diff --git a/cpp/src/qpid/framing/StructHelper.h b/cpp/src/qpid/framing/StructHelper.h
new file mode 100644
index 0000000000..fe2fa64ce7
--- /dev/null
+++ b/cpp/src/qpid/framing/StructHelper.h
@@ -0,0 +1,57 @@
+/*
+ *
+ * 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.
+ *
+ */
+#ifndef _StructHelper_
+#define _StructHelper_
+
+#include "qpid/Exception.h"
+#include "qpid/CommonImportExport.h"
+#include "qpid/framing/Buffer.h"
+
+#include <stdlib.h> // For alloca
+
+namespace qpid {
+namespace framing {
+
+class QPID_COMMON_CLASS_EXTERN StructHelper
+{
+public:
+
+    template <class T> void encode(const T& t, std::string& data) {
+        uint32_t size = t.bodySize() + 2/*type*/;
+        data.resize(size);
+        Buffer wbuffer(const_cast<char*>(data.data()), size);
+        wbuffer.putShort(T::TYPE);
+        t.encodeStructBody(wbuffer);
+    }
+
+    template <class T> void decode(T& t, const std::string& data) {
+        Buffer rbuffer(const_cast<char*>(data.data()), data.length());
+        uint16_t type = rbuffer.getShort();
+        if (type == T::TYPE) {
+            t.decodeStructBody(rbuffer);
+        } else {
+            throw Exception("Type code does not match");
+        }
+    }
+};
+
+}}
+#endif