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+/*
+ * DownloadStateManager.h
+ *****************************************************************************
+ * Copyright (C) 2012, bitmovin Softwareentwicklung OG, All Rights Reserved
+ *
+ * Email: libdash-dev@vicky.bitmovin.net
+ *
+ * This source code and its use and distribution, is subject to the terms
+ * and conditions of the applicable license agreement.
+ *****************************************************************************/
+
+#ifndef DOWNLOADSTATEMANAGER_H_
+#define DOWNLOADSTATEMANAGER_H_
+
+#include "config.h"
+
+#include "IDownloadObserver.h"
+#include "../portable/MultiThreading.h"
+
+namespace dash
+{
+ namespace network
+ {
+ class DownloadStateManager
+ {
+ public:
+ DownloadStateManager ();
+ virtual ~DownloadStateManager ();
+
+ DownloadState State () const;
+ void WaitState (DownloadState state) const;
+ void CheckAndWait (DownloadState check, DownloadState wait) const;
+ void CheckAndSet (DownloadState check, DownloadState set);
+ void State (DownloadState state);
+ void Attach (IDownloadObserver *observer);
+ void Detach (IDownloadObserver *observer);
+
+ private:
+ DownloadState state;
+ mutable CRITICAL_SECTION stateLock;
+ mutable CONDITION_VARIABLE stateChanged;
+
+ std::vector<IDownloadObserver *> observers;
+
+ void Notify ();
+ };
+ }
+}
+
+#endif /* DOWNLOADSTATEMANAGER_H_ */