mirror of https://github.com/aria2/aria2
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "DHTReplaceNodeTask.h"
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#include "DHTBucket.h"
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#include "DHTNode.h"
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#include "DHTPingReplyMessage.h"
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#include "DHTMessageFactory.h"
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#include "DHTMessageDispatcher.h"
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#include "Logger.h"
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#include "LogFactory.h"
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#include "DHTPingReplyMessageCallback.h"
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#include "DHTQueryMessage.h"
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#include "DHTPingMessage.h"
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#include "fmt.h"
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namespace aria2 {
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DHTReplaceNodeTask::DHTReplaceNodeTask
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(const std::shared_ptr<DHTBucket>& bucket, const std::shared_ptr<DHTNode>& newNode)
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: bucket_(bucket),
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newNode_(newNode),
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numRetry_(0),
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timeout_(DHT_MESSAGE_TIMEOUT)
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{}
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DHTReplaceNodeTask::~DHTReplaceNodeTask() {}
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void DHTReplaceNodeTask::startup()
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{
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sendMessage();
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}
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void DHTReplaceNodeTask::sendMessage()
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{
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std::shared_ptr<DHTNode> questionableNode = bucket_->getLRUQuestionableNode();
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if(!questionableNode) {
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setFinished(true);
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} else {
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getMessageDispatcher()->addMessageToQueue
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(getMessageFactory()->createPingMessage(questionableNode),
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timeout_,
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make_unique<DHTPingReplyMessageCallback<DHTReplaceNodeTask>>(this));
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}
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}
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void DHTReplaceNodeTask::onReceived(const DHTPingReplyMessage* message)
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{
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A2_LOG_INFO(fmt("ReplaceNode: Ping reply received from %s.",
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message->getRemoteNode()->toString().c_str()));
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setFinished(true);
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}
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namespace {
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const int MAX_RETRY = 2;
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} //namespace
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void DHTReplaceNodeTask::onTimeout(const std::shared_ptr<DHTNode>& node)
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{
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++numRetry_;
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if(numRetry_ >= MAX_RETRY) {
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A2_LOG_INFO(fmt("ReplaceNode: Ping failed %d times. Replace %s with %s.",
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numRetry_,
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node->toString().c_str(),
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newNode_->toString().c_str()));
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node->markBad();
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bucket_->addNode(newNode_);
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setFinished(true);
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} else {
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A2_LOG_INFO(fmt("ReplaceNode: Ping reply timeout from %s. Try once more.",
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node->toString().c_str()));
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sendMessage();
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}
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}
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} // namespace aria2
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