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/* <!-- 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 "DHTGetPeersCommand.h"
#include "DHTTaskQueue.h"
#include "DHTTaskFactory.h"
#include "DHTTask.h"
#include "DownloadEngine.h"
#include "RequestGroup.h"
#include "DHTNode.h"
#include "DHTNodeLookupEntry.h"
#include "BtRuntime.h"
#include "PeerStorage.h"
#include "Peer.h"
#include "Logger.h"
#include "bittorrent_helper.h"
#include "DownloadContext.h"
#include "wallclock.h"
#include "RequestGroupMan.h"
#include "FileAllocationEntry.h"
#include "CheckIntegrityEntry.h"
#include "ServerStatMan.h"
namespace aria2 {
DHTGetPeersCommand::DHTGetPeersCommand(cuid_t cuid,
RequestGroup* requestGroup,
DownloadEngine* e):
Command(cuid),
requestGroup_(requestGroup),
e_(e),
numRetry_(0),
lastGetPeerTime_(0)
{
requestGroup_->increaseNumCommand();
}
DHTGetPeersCommand::~DHTGetPeersCommand()
{
requestGroup_->decreaseNumCommand();
}
bool DHTGetPeersCommand::execute()
{
if(btRuntime_->isHalt()) {
return true;
}
if(task_.isNull() &&
((numRetry_ > 0 &&
lastGetPeerTime_.difference(global::wallclock) >= (time_t)numRetry_*5) ||
lastGetPeerTime_.difference(global::wallclock) >= GET_PEER_INTERVAL ||
(btRuntime_->lessThanMinPeers() &&
lastGetPeerTime_.difference(global::wallclock) >= GET_PEER_MIN_INTERVAL
&& !requestGroup_->downloadFinished()))) {
if(getLogger()->debug()) {
getLogger()->debug("Issuing PeerLookup for infoHash=%s",
bittorrent::getInfoHashString
(requestGroup_->getDownloadContext()).c_str());
}
task_ = taskFactory_->createPeerLookupTask
(requestGroup_->getDownloadContext(), btRuntime_, peerStorage_);
taskQueue_->addPeriodicTask2(task_);
} else if(!task_.isNull() && task_->finished()) {
lastGetPeerTime_ = global::wallclock;
if(numRetry_ < MAX_RETRIES && btRuntime_->lessThanMinPeers()) {
++numRetry_;
} else {
numRetry_ = 0;
}
task_.reset();
}
e_->addCommand(this);
return false;
}
void DHTGetPeersCommand::setTaskQueue(const SharedHandle<DHTTaskQueue>& taskQueue)
{
taskQueue_ = taskQueue;
}
void DHTGetPeersCommand::setTaskFactory(const SharedHandle<DHTTaskFactory>& taskFactory)
{
taskFactory_ = taskFactory;
}
void DHTGetPeersCommand::setBtRuntime(const SharedHandle<BtRuntime>& btRuntime)
{
btRuntime_ = btRuntime;
}
void DHTGetPeersCommand::setPeerStorage(const SharedHandle<PeerStorage>& ps)
{
peerStorage_ = ps;
}
} // namespace aria2
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