From bcfa0a86baebb2598c0be270121d98a0f31b19c6 Mon Sep 17 00:00:00 2001
From: "Carl C. Trieloff" <cctrieloff@apache.org>
Date: Fri, 30 Jan 2009 18:59:24 +0000
Subject: Correction for: start a broker in cluster, send messages that are
 flow to disk, then join a broker to the cluster. Then consume from the new
 node. Cotent released messages where loosing content. This patch corrects
 that.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@739378 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/broker/Message.cpp | 43 +++++++++++++++++++++++++----------------
 cpp/src/qpid/broker/Message.h   |  3 ++-
 2 files changed, 28 insertions(+), 18 deletions(-)

(limited to 'cpp/src/qpid/broker')

diff --git a/cpp/src/qpid/broker/Message.cpp b/cpp/src/qpid/broker/Message.cpp
index 6bcee99f49..e5a0c3e9e1 100644
--- a/cpp/src/qpid/broker/Message.cpp
+++ b/cpp/src/qpid/broker/Message.cpp
@@ -197,30 +197,39 @@ void Message::destroy()
     }
 }
 
-void Message::sendContent(Queue& queue, framing::FrameHandler& out, uint16_t maxFrameSize) const
+bool Message::getContentFrame(const Queue& queue, AMQFrame& frame, uint16_t maxContentSize, uint64_t offset) const
 {
     if (isContentReleased()) {
-        //load content from store in chunks of maxContentSize
-        uint16_t maxContentSize = maxFrameSize - AMQFrame::frameOverhead();
         intrusive_ptr<const PersistableMessage> pmsg(this);
         
         bool done = false;
-        for (uint64_t offset = 0; !done; offset += maxContentSize)
+        string& data = frame.castBody<AMQContentBody>()->getData();
+        store->loadContent(queue, pmsg, data, offset, maxContentSize);
+        done = data.size() < maxContentSize;
+        frame.setBof(false);
+        frame.setEof(true);
+        QPID_LOG(debug, "loaded frame" << frame);
+        if (offset > 0) {
+            frame.setBos(false);
+        }
+        if (!done) {
+            frame.setEos(false);
+        } else return false;
+        return true;
+    }
+    else return false;
+}
+
+void Message::sendContent(const Queue& queue, framing::FrameHandler& out, uint16_t maxFrameSize) const
+{
+    if (isContentReleased()) {
+
+        uint16_t maxContentSize = maxFrameSize - AMQFrame::frameOverhead();
+        bool morecontent = true;
+        for (uint64_t offset = 0; morecontent; offset += maxContentSize)
         {            
             AMQFrame frame((AMQContentBody()));
-            string& data = frame.castBody<AMQContentBody>()->getData();
-
-            store->loadContent(queue, pmsg, data, offset, maxContentSize);
-            done = data.size() < maxContentSize;
-            frame.setBof(false);
-            frame.setEof(true);
-            if (offset > 0) {
-                frame.setBos(false);
-            }
-            if (!done) {
-                frame.setEos(false);
-            }
-            QPID_LOG(debug, "loaded frame for delivery: " << frame);
+            morecontent = getContentFrame(queue, frame, maxContentSize, offset);
             out.handle(frame);
         }
     } else {
diff --git a/cpp/src/qpid/broker/Message.h b/cpp/src/qpid/broker/Message.h
index bed191fb8d..de716e9441 100644
--- a/cpp/src/qpid/broker/Message.h
+++ b/cpp/src/qpid/broker/Message.h
@@ -131,7 +131,8 @@ public:
     void releaseContent(MessageStore* store);
     void destroy();
 
-    void sendContent(Queue& queue, framing::FrameHandler& out, uint16_t maxFrameSize) const;
+    bool getContentFrame(const Queue& queue, framing::AMQFrame& frame, uint16_t maxContentSize, uint64_t offset) const;
+    void sendContent(const Queue& queue, framing::FrameHandler& out, uint16_t maxFrameSize) const;
     void sendHeader(framing::FrameHandler& out, uint16_t maxFrameSize) const;
 
     bool isContentLoaded() const;
-- 
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