diff Plugin/Cache/CacheScheduler.h @ 0:02f7a0400a91

initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 25 Feb 2015 13:45:35 +0100
parents
children ecefd45026bf
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugin/Cache/CacheScheduler.h	Wed Feb 25 13:45:35 2015 +0100
@@ -0,0 +1,79 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "CacheManager.h"
+#include "ICacheFactory.h"
+#include "IPrefetchPolicy.h"
+#include "../../Orthanc/MultiThreading/SharedMessageQueue.h"
+
+#include <boost/thread.hpp>
+#include <stdio.h>
+
+namespace OrthancPlugins
+{
+  class CacheScheduler : public boost::noncopyable
+  {
+  private:
+    class Prefetcher;
+    class PrefetchQueue;
+    class BundleScheduler;
+
+    typedef std::map<int, BundleScheduler*>  BundleSchedulers;
+
+    size_t   maxPrefetchSize_;
+
+    boost::mutex                    cacheMutex_;
+    boost::mutex                    factoryMutex_;
+    boost::recursive_mutex          policyMutex_;
+    CacheManager&                   cache_;
+    std::auto_ptr<IPrefetchPolicy>  policy_;
+    BundleSchedulers                bundles_;
+
+    void ApplyPrefetchPolicy(int bundle,
+                             const std::string& item,
+                             const std::string& content);
+
+    BundleScheduler&  GetBundleScheduler(unsigned int bundleIndex);
+
+  public:
+    CacheScheduler(CacheManager& cache,
+                   unsigned int maxPrefetchSize);
+
+    ~CacheScheduler();
+
+    void Register(int bundle,
+                  ICacheFactory* factory /* takes ownership */,
+                  size_t  numThreads);
+
+    void RegisterPolicy(IPrefetchPolicy* policy /* takes ownership */);
+
+    void Invalidate(int bundle,
+                    const std::string& item);
+
+    bool Access(std::string& content,
+                int bundle,
+                const std::string& item);
+
+    void Prefetch(int bundle,
+                  const std::string& item);
+  };
+}