From 0f133632298e31dab0efe6fd36f00c84d2175f33 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Fri, 1 Feb 2008 17:36:33 +0000
Subject: 2008-02-01  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>

	Added DHT functionality, compatible with mainline.
	DHT is disabled by default. To enable it, give --enable-dht to
aria2c.
	You may need to specify entry point to DHT network using
	--dht-entry-point. DHT uses UDP port to listen incoming message.
	Use --dht-listen-port to specify port number. Make sure that
your
	firewall configuration can pass through UDP traffic to the port.
	The routing table is saved in $HOME/.aria2/dht.dat.
	* src/DHT*
	* src/BNode.{h, cc}
	* src/PeerInteractionCommand.cc: enable DHT functionality for a
	particular torrent.
	* src/Data.cc: Rewritten ctor.
	* src/OptionHandlerFactory.cc: Added --enable-dht,
--dht-listen-port,
	--dht-entry-point.
	* src/DefaultBtInteractive.cc: Send port message if dht is
enabled.
	* src/RequestGroup.cc: Initialize DHT functionality. When
download
	ends, remove BtContext from DHTPeerAnnounceStorage.
	* src/BtPortMessage.{h, cc}: Rewritten.
	* src/message.h
	* src/OptionHandlerImpl.cc
	* src/option_processing.cc: Added --enable-dht,
--dht-listen-port,
	--dht-entry-point.
	* src/Dictionary.{h, cc} (remove): New function.
	* src/prefs.h
	* src/DefaultBtMessageFactory.h
	* src/BtHandshakeMessage.cc
	* src/ActivePeerConnectionCommand.cc
	* src/SocketCore.{h, cc}: Added datagram socket support.
	* src/DefaultBtMessageFactory.cc
	* src/BtSetup.cc: Add BtContext to DHTPeerAnnounceStorage here.
	Create DHT commands.
	* src/BtMessageFactory.h
	* src/PeerMessageUtil.{h, cc}
---
 src/DHTInteractionCommand.cc | 111 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 src/DHTInteractionCommand.cc

(limited to 'src/DHTInteractionCommand.cc')

diff --git a/src/DHTInteractionCommand.cc b/src/DHTInteractionCommand.cc
new file mode 100644
index 00000000..0b4b0323
--- /dev/null
+++ b/src/DHTInteractionCommand.cc
@@ -0,0 +1,111 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2006 Tatsuhiro Tsujikawa
+ *
+ * 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
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+/* copyright --> */
+#include "DHTInteractionCommand.h"
+#include "DownloadEngine.h"
+#include "RecoverableException.h"
+#include "DHTMessageDispatcher.h"
+#include "DHTMessageReceiver.h"
+#include "DHTTaskQueue.h"
+#include "DHTMessage.h"
+#include "Socket.h"
+#include "message.h"
+#include "RequestGroupMan.h"
+
+DHTInteractionCommand::DHTInteractionCommand(int32_t cuid, DownloadEngine* e):
+  Command(cuid),
+  _e(e),
+  _dispatcher(0),
+  _receiver(0),
+  _taskQueue(0),
+  _readCheckSocket(0)
+{}
+
+DHTInteractionCommand::~DHTInteractionCommand()
+{
+  disableReadCheckSocket(_readCheckSocket);
+}
+
+void DHTInteractionCommand::setReadCheckSocket(const SocketHandle& socket)
+{
+  _readCheckSocket = socket;
+  _e->addSocketForReadCheck(socket, this);
+}
+
+void DHTInteractionCommand::disableReadCheckSocket(const SocketHandle& socket)
+{
+  _e->deleteSocketForReadCheck(socket, this);
+}
+
+bool DHTInteractionCommand::execute()
+{
+  if(_e->_requestGroupMan->downloadFinished() || _e->isHaltRequested()) {
+    return true;
+  }
+
+  _taskQueue->executeTask();
+
+  for(size_t i = 0; i < 20 && _readCheckSocket->isReadable(0); ++i) {
+    try {
+      _receiver->receiveMessage();
+    } catch(RecoverableException* e) {
+      logger->error(EX_EXCEPTION_CAUGHT, e);
+      delete e;
+    }
+  }
+  try {
+    _receiver->handleTimeout();
+    _dispatcher->sendMessages();
+  } catch(RecoverableException* e) {
+    logger->error(EX_EXCEPTION_CAUGHT, e);
+    delete e;
+  }
+  _e->commands.push_back(this);
+  return false;
+}
+
+void DHTInteractionCommand::setMessageDispatcher(const DHTMessageDispatcherHandle& dispatcher)
+{
+  _dispatcher = dispatcher;
+}
+
+void DHTInteractionCommand::setMessageReceiver(const DHTMessageReceiverHandle& receiver)
+{
+  _receiver = receiver;
+}
+
+void DHTInteractionCommand::setTaskQueue(const DHTTaskQueueHandle& taskQueue)
+{
+  _taskQueue = taskQueue;
+}
-- 
cgit