From 3e08b645c2861fb36525e05061d6c8012fd30932 Mon Sep 17 00:00:00 2001
From: Gordon Sim <gsim@apache.org>
Date: Mon, 29 Apr 2013 18:04:17 +0000
Subject: QPID-4339: simple paged queue implementation

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1477236 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/broker/QueueFactory.cpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

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

diff --git a/cpp/src/qpid/broker/QueueFactory.cpp b/cpp/src/qpid/broker/QueueFactory.cpp
index efeb9ae53b..67499c9985 100644
--- a/cpp/src/qpid/broker/QueueFactory.cpp
+++ b/cpp/src/qpid/broker/QueueFactory.cpp
@@ -30,17 +30,18 @@
 #include "qpid/broker/Fairshare.h"
 #include "qpid/broker/MessageDeque.h"
 #include "qpid/broker/MessageMap.h"
+#include "qpid/broker/PagedQueue.h"
 #include "qpid/broker/PriorityQueue.h"
 #include "qpid/broker/QueueFlowLimit.h"
 #include "qpid/broker/ThresholdAlerts.h"
 #include "qpid/broker/FifoDistributor.h"
+#include "qpid/log/Statement.h"
 #include <map>
 #include <memory>
 
 namespace qpid {
 namespace broker {
 
-
 QueueFactory::QueueFactory() : broker(0), store(0), parent(0) {}
 
 boost::shared_ptr<Queue> QueueFactory::create(const std::string& name, const QueueSettings& settings)
@@ -66,6 +67,17 @@ boost::shared_ptr<Queue> QueueFactory::create(const std::string& name, const Que
         } else {
             queue->messages = std::auto_ptr<Messages>(new PriorityQueue(settings.priorities));
         }
+    } else if (settings.paging) {
+        if (!broker) {
+            QPID_LOG(warning, "Cannot create paged queue without broker context");
+        } else if (!qpid::sys::MemoryMappedFile::isSupported()) {
+            QPID_LOG(warning, "Cannot create paged queue; memory mapped file support not available on this platform");
+        } else {
+            queue->messages = std::auto_ptr<Messages>(new PagedQueue(name, broker->getOptions().dataDir,
+                                                                     settings.maxPages ? settings.maxPages : 4,
+                                                                     settings.pageFactor ? settings.pageFactor : 1,
+                                                                     broker->getProtocolRegistry()));
+        }
     } else if (settings.lvqKey.empty()) {//LVQ already handled above
         queue->messages = std::auto_ptr<Messages>(new MessageDeque());
     }
-- 
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