1 files changed, 137 insertions, 0 deletions
diff --git a/libktorrent/net/downloadthread.cpp b/libktorrent/net/downloadthread.cpp
new file mode 100644
index 0000000..ae0f0b9
--- /dev/null
+++ b/libktorrent/net/downloadthread.cpp
@@ -0,0 +1,137 @@
+/***************************************************************************
+ *   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.          *
+ ***************************************************************************/
+#include <math.h>
+#include <sys/poll.h>
+#include <util/functions.h>
+#include "socketgroup.h"
+#include "downloadthread.h"
+#include "socketmonitor.h"
+#include "bufferedsocket.h"
+		
+using namespace bt;
+
+namespace net
+{
+	Uint32 DownloadThread::dcap = 0;
+	Uint32 DownloadThread::sleep_time = 3;
+
+	DownloadThread::DownloadThread(SocketMonitor* sm) : NetworkThread(sm)
+	{
+	}
+
+
+	DownloadThread::~DownloadThread()
+	{}
+	
+	void DownloadThread::update()
+	{
+		sm->lock();
+		int num = fillPollVector();
+		sm->unlock();
+	
+		int timeout = 10;	
+		if (poll(&fd_vec[0],num,timeout) > 0)
+		{
+			sm->lock();
+			TimeStamp now = bt::Now();
+			Uint32 num_ready = 0;
+			SocketMonitor::Itr itr = sm->begin();
+			while (itr != sm->end())
+			{
+				BufferedSocket* s = *itr;
+				int pi = s->getPollIndex();
+				if (pi >= 0 && s->ok() && fd_vec[pi].revents & POLLIN)
+				{
+					// add to the correct group
+					Uint32 gid = s->downloadGroupID();
+					SocketGroup* g = groups.find(gid);
+					if (!g)
+						g = groups.find(0);
+					
+					g->add(s);
+					num_ready++;
+				}
+				itr++;
+			}
+		
+			if (num_ready > 0)
+				doGroups(num_ready,now,dcap);
+			prev_run_time = now;
+			sm->unlock();
+		}
+		
+		if (dcap > 0 || groups.count() > 0)
+			msleep(sleep_time);
+	}
+
+	int DownloadThread::fillPollVector()
+	{
+		TimeStamp ts = bt::Now();
+		int i = 0;
+		
+		// fill the poll vector with all sockets
+		SocketMonitor::Itr itr = sm->begin();
+		while (itr != sm->end())
+		{
+			BufferedSocket* s = *itr;
+			if (s && s->ok() && s->fd() > 0)
+			{
+				if (fd_vec.size() <= i)
+				{
+					// expand pollfd vector if necessary
+					struct pollfd pfd;
+					pfd.fd = s->fd();
+					pfd.revents = 0;
+					pfd.events = POLLIN;
+					fd_vec.push_back(pfd);
+				}
+				else
+				{
+					// use existing slot
+					struct pollfd & pfd = fd_vec[i];
+					pfd.fd = s->fd();
+					pfd.revents = 0;
+					pfd.events = POLLIN;
+				}
+				s->setPollIndex(i);
+				i++;
+				s->updateSpeeds(ts);
+			}
+			else
+			{
+				s->setPollIndex(-1);
+			}
+			itr++;
+		}
+		
+		return i;
+	}
+	
+	void DownloadThread::setSleepTime(Uint32 stime)
+	{
+		if (stime >= 1 && stime <= 10)
+			sleep_time = stime;
+	}
+	
+	bool DownloadThread::doGroup(SocketGroup* g,Uint32 & allowance,bt::TimeStamp now)
+	{
+		return g->download(allowance,now);
+	}
+}