1 files changed, 134 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/cluster/Event.cpp b/qpid/cpp/src/qpid/cluster/Event.cpp
new file mode 100644
index 0000000000..da2bc89d8c
--- /dev/null
+++ b/qpid/cpp/src/qpid/cluster/Event.cpp
@@ -0,0 +1,134 @@
+/*
+ *
+ * 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 "qpid/cluster/types.h"
+#include "qpid/cluster/Event.h"
+#include "qpid/cluster/Cpg.h"
+#include "qpid/framing/Buffer.h"
+#include "qpid/framing/AMQFrame.h"
+#include "qpid/RefCountedBuffer.h"
+#include "qpid/assert.h"
+#include <ostream>
+#include <iterator>
+#include <algorithm>
+
+namespace qpid {
+namespace cluster {
+
+using framing::Buffer;
+using framing::AMQFrame;
+
+const size_t EventHeader::HEADER_SIZE =
+    sizeof(uint8_t) +  // type
+    sizeof(uint64_t) + // connection pointer only, CPG provides member ID.
+    sizeof(uint32_t)  // payload size
+    ;
+
+EventHeader::EventHeader(EventType t, const ConnectionId& c,  size_t s)
+    : type(t), connectionId(c), size(s) {}
+
+
+Event::Event() {}
+
+Event::Event(EventType t, const ConnectionId& c,  size_t s)
+    : EventHeader(t,c,s), store(RefCountedBuffer::create(s+HEADER_SIZE))
+{}
+
+void EventHeader::decode(const MemberId& m, framing::Buffer& buf) {
+    QPID_ASSERT(buf.available() >= HEADER_SIZE);
+    type = (EventType)buf.getOctet();
+    QPID_ASSERT(type == DATA || type == CONTROL);
+    connectionId = ConnectionId(m, buf.getLongLong());
+    size = buf.getLong();
+}
+
+Event Event::decodeCopy(const MemberId& m, framing::Buffer& buf) {
+    Event e;
+    e.decode(m, buf);           // Header
+    QPID_ASSERT(buf.available() >= e.size);
+    e.store = RefCountedBuffer::create(e.size + HEADER_SIZE);
+    memcpy(e.getData(), buf.getPointer() + buf.getPosition(), e.size);
+    return e;
+}
+
+Event Event::control(const framing::AMQFrame& f, const ConnectionId& cid) {
+    Event e(CONTROL, cid, f.encodedSize());
+    Buffer buf(e);
+    f.encode(buf);
+    return e;
+}
+
+Event Event::control(const framing::AMQBody& body, const ConnectionId& cid) {
+    return control(framing::AMQFrame(body), cid);
+}
+
+iovec Event::toIovec() const {
+    encodeHeader();
+    iovec iov = { const_cast<char*>(getStore()), getStoreSize() };
+    return iov;
+}
+
+void EventHeader::encode(Buffer& b) const {
+    b.putOctet(type);
+    b.putLongLong(connectionId.getNumber());
+    b.putLong(size);
+}
+
+// Encode my header in my buffer.
+void Event::encodeHeader () const {
+    Buffer b(const_cast<char*>(getStore()), HEADER_SIZE);
+    encode(b);
+    assert(b.getPosition() == HEADER_SIZE);
+}
+
+Event::operator Buffer() const  {
+    return Buffer(const_cast<char*>(getData()), getSize());
+}
+
+const AMQFrame& Event::getFrame() const {
+    assert(type == CONTROL);
+    if (!frame.getBody()) {
+        Buffer buf(*this);
+        QPID_ASSERT(frame.decode(buf));
+    }
+    return frame;
+}
+
+static const char* EVENT_TYPE_NAMES[] = { "data", "control" };
+
+std::ostream& operator<< (std::ostream& o, EventType t) {
+    return o << EVENT_TYPE_NAMES[t];
+}
+
+std::ostream& operator<< (std::ostream& o, const EventHeader& e) {
+    return o << "Event[" << e.getConnectionId() << " " << e.getType()
+             << " " << e.getSize() << " bytes]";
+}
+
+std::ostream& operator<< (std::ostream& o, const Event& e) {
+    o << "Event[" << e.getConnectionId() << " ";
+    if (e.getType() == CONTROL)
+        o << e.getFrame();
+    else
+        o << " data " << e.getSize() << " bytes";
+    return o << "]";
+}
+
+}} // namespace qpid::cluster