1 files changed, 81 insertions, 0 deletions
diff --git a/cpp/src/qpid/amqp_0_10/Segment.cpp b/cpp/src/qpid/amqp_0_10/Segment.cpp
new file mode 100644
index 0000000000..0d7c9c55f1
--- /dev/null
+++ b/cpp/src/qpid/amqp_0_10/Segment.cpp
@@ -0,0 +1,81 @@
+/*
+ *
+ * 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 "Segment.h"
+#include "qpid/Exception.h"
+#include <boost/ref.hpp>
+#include <numeric>
+
+namespace qpid {
+namespace amqp_0_10 {
+
+Segment::Segment() : missing() {}
+
+bool Segment::isComplete() const {
+    return missing || !frames.empty() && (frames.back().testFlags(Frame::LAST_FRAME));
+}
+
+Segment::const_iterator Segment::begin() const {
+    return Segment::const_iterator(frames, frames.begin(), frames.begin()->begin());
+}
+
+Segment::const_iterator Segment::end() const {
+    return const_iterator(frames, frames.end(), frames.end()->end());
+}
+
+namespace {
+Frame::Flags segFlags(const Frame& f) {
+    return f.testFlags(Frame::FIRST_SEGMENT | Frame::LAST_SEGMENT);
+}
+} // namespace
+
+void Segment::add(const Frame& frame) {
+    // FIXME aconway 2008-03-07:  ex types & messages.
+    if (isComplete()) throw Exception("cannot add frame to complete segment");
+    if (!frames.empty()) {
+        if (frame.testFlags(Frame::FIRST_FRAME) ||
+            frame.getType() != frames.front().getType() ||
+            segFlags(frames.front()) != segFlags(frame))
+            throw Exception("invalid frame");
+    }
+    frames.push_back(frame);
+}
+
+bool Segment::isFirst() const {
+    return !frames.empty() && frames.front().testFlags(Frame::FIRST_SEGMENT);
+}
+
+bool Segment::isLast() const {
+    return !frames.empty() && frames.front().testFlags(Frame::LAST_SEGMENT);
+}
+
+namespace {
+size_t accumulate_size(size_t total, const Frame& f) {
+    return total+f.size();
+}
+}
+
+size_t Segment::size() const {
+    return std::accumulate(frames.begin(), frames.end(), 0, &accumulate_size);
+}
+
+}} // namespace qpid::amqp_0_10
+
+