1 files changed, 86 insertions, 0 deletions
diff --git a/libktorrent/torrent/upspeedestimater.h b/libktorrent/torrent/upspeedestimater.h
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+++ b/libktorrent/torrent/upspeedestimater.h
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+/***************************************************************************
+ *   Copyright (C) 2005 by Joris Guisson                                   *
+ *   joris.guisson@gmail.com                                               *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 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 General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.             *
+ ***************************************************************************/
+#ifndef BTUPSPEEDESTIMATER_H
+#define BTUPSPEEDESTIMATER_H
+
+#include <qvaluelist.h>
+#include <util/constants.h>
+
+namespace bt
+{
+
+	/**
+	 * @author Joris Guisson
+	 *
+	 * Measures upload speed.
+	*/
+	class UpSpeedEstimater
+	{
+		struct Entry
+		{
+			Uint32 bytes;
+			TimeStamp start_time;
+			Uint32 duration;
+			bool data;
+		};
+	public:
+		UpSpeedEstimater();
+		virtual ~UpSpeedEstimater();
+
+		/**
+		 * Start sending bytes.
+		 * @param bytes The number of bytes
+		 * @param rec Wether to record or not (i.e. is this data)
+		 */
+		void writeBytes(Uint32 bytes,bool rec);
+		
+		/**
+		 * The socket has finished sending bytes.
+		 * @param bytes The number of bytes.
+		 */
+		void bytesWritten(Uint32 bytes);
+
+		/**
+		 * Update the upload speed estimater.
+		 */
+		void update();
+
+		/// Get the upload rate 
+		double uploadRate() const {return upload_rate;}
+		
+		/// Get the protocol overhead 
+		double protocollOverhead() const {return proto_upload_rate;}
+	private:
+		double rate(QValueList<Entry> & el);
+		
+	private:
+		double upload_rate;
+		double proto_upload_rate;
+		Uint32 accumulated_bytes;
+		QValueList<Entry> outstanding_bytes;
+		QValueList<Entry> written_bytes;
+#ifdef MEASURE_PROTO_OVERHEAD
+		QValueList<Entry> proto_bytes;
+#endif
+	};
+
+}
+
+#endif