mirror of https://github.com/aria2/aria2
117 lines
3.6 KiB
C++
117 lines
3.6 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 "DHTGetPeersCommand.h"
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#include "DHTTaskQueue.h"
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#include "DHTTaskFactory.h"
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#include "DHTTask.h"
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#include "DownloadEngine.h"
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#include "RequestGroup.h"
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#include "DHTNode.h"
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#include "DHTNodeLookupEntry.h"
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#include "BtRuntime.h"
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#include "PeerStorage.h"
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#include "Peer.h"
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#include "Logger.h"
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#include "bittorrent_helper.h"
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#include "DownloadContext.h"
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namespace aria2 {
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DHTGetPeersCommand::DHTGetPeersCommand(int32_t cuid,
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RequestGroup* requestGroup,
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DownloadEngine* e):
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Command(cuid),
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_requestGroup(requestGroup),
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_e(e),
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_numRetry(0),
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_lastGetPeerTime(0)
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{
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_requestGroup->increaseNumCommand();
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}
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DHTGetPeersCommand::~DHTGetPeersCommand()
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{
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_requestGroup->decreaseNumCommand();
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}
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bool DHTGetPeersCommand::execute()
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{
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if(_btRuntime->isHalt()) {
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return true;
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}
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if(_task.isNull() &&
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((_numRetry > 0 && _lastGetPeerTime.elapsed(RETRY_INTERVAL)) ||
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_lastGetPeerTime.elapsed(GET_PEER_INTERVAL))) {
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logger->debug("Issuing PeerLookup for infoHash=%s",
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bittorrent::getInfoHashString(_requestGroup->getDownloadContext()).c_str());
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_task = _taskFactory->createPeerLookupTask
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(_requestGroup->getDownloadContext(), _btRuntime, _peerStorage);
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_taskQueue->addPeriodicTask2(_task);
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} else if(!_task.isNull() && _task->finished()) {
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_lastGetPeerTime.reset();
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if(_numRetry < MAX_RETRIES && _btRuntime->lessThanMinPeers()) {
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++_numRetry;
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} else {
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_numRetry = 0;
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}
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_task.reset();
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}
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_e->commands.push_back(this);
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return false;
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}
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void DHTGetPeersCommand::setTaskQueue(const SharedHandle<DHTTaskQueue>& taskQueue)
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{
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_taskQueue = taskQueue;
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}
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void DHTGetPeersCommand::setTaskFactory(const SharedHandle<DHTTaskFactory>& taskFactory)
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{
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_taskFactory = taskFactory;
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}
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void DHTGetPeersCommand::setBtRuntime(const SharedHandle<BtRuntime>& btRuntime)
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{
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_btRuntime = btRuntime;
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}
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void DHTGetPeersCommand::setPeerStorage(const SharedHandle<PeerStorage>& ps)
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{
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_peerStorage = ps;
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}
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} // namespace aria2
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