Updated message.transfer encoding to use header and content segments (including new structs).

Unified more between the basic and message classes messages.



git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@570538 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 51 insertions, 0 deletions

diff --git a/cpp/src/qpid/framing/SendContent.cpp b/cpp/src/qpid/framing/SendContent.cpp
new file mode 100644
index 0000000000..568cc01665
--- /dev/null
+++ b/cpp/src/qpid/framing/SendContent.cpp
@@ -0,0 +1,51 @@
+/*
+ *
+ * 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 "SendContent.h"
+
+qpid::framing::SendContent::SendContent(FrameHandler& h, uint16_t c, uint16_t mfs) : handler(h), channel(c), maxFrameSize(mfs) {}
+
+void qpid::framing::SendContent::operator()(AMQFrame& f) const
+{
+    uint16_t maxContentSize = maxFrameSize - AMQFrame::frameOverhead();
+    const AMQContentBody* body(f.castBody<AMQContentBody>()); 
+    if (body->size() > maxContentSize) {
+        uint32_t offset = 0;
+        for (int chunk = body->size() / maxContentSize; chunk > 0; chunk--) {
+            sendFragment(*body, offset, maxContentSize);
+            offset += maxContentSize;
+        }
+        uint32_t remainder = body->size() % maxContentSize;
+        if (remainder) {
+            sendFragment(*body, offset, remainder);
+        }
+    } else {
+        AMQFrame copy(f);
+        copy.setChannel(channel);
+        handler.handle(copy);
+    }        
+}
+
+void qpid::framing::SendContent::sendFragment(const AMQContentBody& body, uint32_t offset, uint16_t size) const
+{
+    AMQFrame fragment(channel, AMQContentBody(body.getData().substr(offset, size)));
+    handler.handle(fragment);
+}