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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#include "TrackerWatcherCommand.h"
#include "InitiateConnectionCommandFactory.h"
#include "Util.h"
#include "SleepCommand.h"
#include "prefs.h"
TrackerWatcherCommand::TrackerWatcherCommand(int cuid,
TorrentDownloadEngine* e,
int interval):
Command(cuid), e(e), interval(interval) {
// to force requesting to a tracker first time.
checkPoint.setTimeInSec(0);
}
TrackerWatcherCommand::~TrackerWatcherCommand() {}
bool TrackerWatcherCommand::execute() {
if(e->segmentMan->errors > 0) {
// we assume the tracker request has failed.
e->torrentMan->trackers = 0;
e->segmentMan->init();
// sleep a few seconds.
SleepCommand* sleepCommand =
new SleepCommand(cuid, e, this, e->option->getAsInt(PREF_RETRY_WAIT));
e->commands.push_back(sleepCommand);
return false;
}
if(e->torrentMan->trackers == 0 &&
(e->torrentMan->isHalt() ||
checkPoint.elapsed(interval))) {
checkPoint.reset();
e->torrentMan->req->resetTryCount();
int numWant = 50;
if(e->torrentMan->connections >= MIN_PEERS || e->torrentMan->isHalt()) {
numWant = 0;
}
if(e->torrentMan->isHalt()) {
e->torrentMan->req->setTrackerEvent(Request::STOPPED);
} else if(e->torrentMan->downloadComplete()) {
if(e->torrentMan->req->getTrackerEvent() == Request::COMPLETED) {
e->torrentMan->req->setTrackerEvent(Request::AFTER_COMPLETED);
} else {
if(e->torrentMan->req->getTrackerEvent() == Request::STARTED) {
e->torrentMan->req->setTrackerEvent(Request::AFTER_COMPLETED);
} else if(e->torrentMan->req->getTrackerEvent() != Request::AFTER_COMPLETED) {
e->torrentMan->req->setTrackerEvent(Request::COMPLETED);
}
}
}
string event;
switch(e->torrentMan->req->getTrackerEvent()) {
case Request::STARTED:
event = "started";
break;
case Request::STOPPED:
event = "stopped";
break;
case Request::COMPLETED:
event = "completed";
break;
}
string url = e->torrentMan->announce+"?"+
"info_hash="+Util::urlencode(e->torrentMan->getInfoHash(), 20)+"&"+
"peer_id="+e->torrentMan->peerId+"&"+
"port="+Util::itos(e->torrentMan->getPort())+"&"+
"uploaded="+Util::llitos(e->torrentMan->getSessionUploadLength())+"&"+
"downloaded="+Util::llitos(e->torrentMan->getSessionDownloadLength())+"&"+
"left="+(e->torrentMan->getTotalLength()-e->torrentMan->getDownloadLength() <= 0
? "0" : Util::llitos(e->torrentMan->getTotalLength()-e->torrentMan->getDownloadLength()))+"&"+
"compact=1"+"&"+
"key="+e->torrentMan->key+"&"+
"numwant="+Util::itos(numWant)+"&"+
"no_peer_id=1";
if(!event.empty()) {
url += string("&")+"event="+event;
}
if(!e->torrentMan->trackerId.empty()) {
url += string("&")+"trackerid="+e->torrentMan->trackerId;
}
e->torrentMan->req->setUrl(url);
Command* command = InitiateConnectionCommandFactory::createInitiateConnectionCommand(e->torrentMan->getNewCuid(), e->torrentMan->req, e);
e->commands.push_back(command);
e->torrentMan->trackers++;
logger->info("CUID#%d - Creating new tracker request command #%d", cuid,
command->getCuid());
if(e->torrentMan->isHalt()) {
return true;
}
}
interval = e->torrentMan->minInterval;
e->commands.push_back(this);
return false;
}
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