From 9ad5c7b5e23b4940e7a3ea3ca3a6fb77e6a8fab0 Mon Sep 17 00:00:00 2001
From: tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 20 Jan 2010 02:37:40 +0000
Subject: Updated to final KDE3 ktorrent release (2.2.6)

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktorrent@1077377 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 libktorrent/torrent/cap.cpp | 123 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 libktorrent/torrent/cap.cpp

(limited to 'libktorrent/torrent/cap.cpp')

diff --git a/libktorrent/torrent/cap.cpp b/libktorrent/torrent/cap.cpp
new file mode 100644
index 0000000..a785520
--- /dev/null
+++ b/libktorrent/torrent/cap.cpp
@@ -0,0 +1,123 @@
+/***************************************************************************
+ *   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.             *
+ ***************************************************************************/
+#if 0
+#include <math.h>
+#include "cap.h"
+
+namespace bt
+{
+	typedef QValueList<Cap::Entry>::iterator CapItr;
+
+	Cap::Cap(bool percentage_check) : max_bytes_per_sec(0),leftover(0),current_speed(0),percentage_check(percentage_check)
+	{
+		timer.update();
+	}
+
+
+	Cap::~Cap()
+	{}
+
+	void Cap::setMaxSpeed(Uint32 max)
+	{
+		max_bytes_per_sec = max;
+		// tell everybody to go wild
+		if (max_bytes_per_sec == 0)
+		{
+			CapItr i = entries.begin();
+			while (i != entries.end())
+			{
+				Cap::Entry & e = *i;
+				e.obj->proceed(0);
+				i++;
+			}
+			entries.clear();
+			leftover = 0;
+		}
+	}
+	
+	bool Cap::allow(Cappable* pd,Uint32 bytes)
+	{
+		if (max_bytes_per_sec == 0 || (percentage_check && (double)current_speed / (double)max_bytes_per_sec < 0.75))
+		{
+			timer.update();
+			return true;
+		}
+
+		// append pd to queue
+		entries.append(Cap::Entry(pd,bytes));
+		return false;
+	}
+
+	void Cap::killed(Cappable*  pd)
+	{
+		CapItr i = entries.begin();
+		while (i != entries.end())
+		{
+			Cap::Entry & e = *i;
+			if (e.obj == pd)
+				i = entries.erase(i);
+			else
+				i++;
+		}
+	}
+
+	void Cap::update()
+	{
+		if (entries.count() == 0)
+		{
+			timer.update();
+			return;
+		}
+		
+		// first calculate the time since the last update
+		double el = timer.getElapsedSinceUpdate();
+		
+		// calculate the number of bytes we can send, including those leftover from the last time
+		Uint32 nb = (Uint32)round((el / 1000.0) * max_bytes_per_sec) + leftover;
+		leftover = 0;
+	//	Out() << "nb = " << nb << endl;
+		
+		while (entries.count() > 0 && nb > 0)
+		{
+			// get the first
+			Cap::Entry & e = entries.first();
+			
+			if (e.num_bytes <= nb)
+			{
+				nb -= e.num_bytes;
+				// we can send all remaining bytes of the packet
+				e.obj->proceed(e.num_bytes);
+				entries.pop_front();
+			}
+			else
+			{
+				// sent nb bytes of the packets
+				e.obj->proceed(nb);
+				e.num_bytes -= nb;
+				nb = 0;
+			}
+		}
+		
+		leftover = nb;
+		timer.update();
+	}
+
+}
+#endif
-- 
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