--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/HttpQueries/HttpQueriesQueue.h	Mon Sep 17 11:34:55 2018 +0200
@@ -0,0 +1,90 @@
+/**
+ * Transfers accelerator plugin for Orthanc
+ * Copyright (C) 2018 Osimis, 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 "IHttpQuery.h"
+
+#include <Plugins/Samples/Common/OrthancPluginCppWrapper.h>
+
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/condition_variable.hpp>
+
+
+namespace OrthancPlugins
+{
+  class HttpQueriesQueue : public boost::noncopyable
+  {
+  public:
+    enum Status
+    {
+      Status_Running,
+      Status_Success,
+      Status_Failure
+    };
+
+  private:
+    OrthancPluginContext         *context_;
+    OrthancPeers                  peers_;
+    boost::mutex                  mutex_;
+    boost::condition_variable     completed_;
+    std::vector<IHttpQuery*>      queries_;
+    unsigned int                  maxRetries_;
+
+    size_t                        position_;
+    uint64_t                      downloadedSize_;   // GET answers + POST answers
+    uint64_t                      uploadedSize_;     // PUT body + POST body
+    size_t                        successQueries_;
+    bool                          isFailure_;
+
+
+    Status GetStatusInternal() const;
+
+  public:
+    HttpQueriesQueue(OrthancPluginContext* context);
+
+    ~HttpQueriesQueue();
+
+    OrthancPeers& GetOrthancPeers()
+    {
+      return peers_;
+    }
+
+    unsigned int GetMaxRetries();
+
+    void SetMaxRetries(unsigned int maxRetries);
+
+    void Reserve(size_t size);
+
+    void Reset();
+
+    void Enqueue(IHttpQuery* query);  // Takes ownership
+
+    bool ExecuteOneQuery(uint64_t& networkTraffic);
+
+    Status WaitComplete(unsigned int timeoutMS);
+    
+    void WaitComplete();
+
+    void GetStatistics(size_t& scheduledQueriesCount,
+                       size_t& successQueriesCount,
+                       uint64_t& downloadedSize,
+                       uint64_t& uploadedSize);
+  };
+}