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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 "PeerAbstractCommand.h"
#include "DlAbortEx.h"
#include "DlRetryEx.h"
#include "Util.h"
#include "message.h"
#include "prefs.h"
#include <sys/time.h>
PeerAbstractCommand::PeerAbstractCommand(int cuid, Peer* peer, TorrentDownloadEngine* e, const Socket* s):
Command(cuid), e(e), peer(peer), checkSocketIsReadable(false), checkSocketIsWritable(false) {
if(s != NULL) {
socket = new Socket(*s);
setReadCheckSocket(socket);
} else {
socket = NULL;
}
this->checkPoint.tv_sec = 0;
this->checkPoint.tv_usec = 0;
timeout = e->option->getAsInt(PREF_TIMEOUT);
e->torrentMan->connections++;
}
PeerAbstractCommand::~PeerAbstractCommand() {
setReadCheckSocket(NULL);
setWriteCheckSocket(NULL);
if(socket != NULL) {
delete(socket);
}
e->torrentMan->connections--;
}
void PeerAbstractCommand::updateCheckPoint() {
gettimeofday(&checkPoint, NULL);
}
bool PeerAbstractCommand::isTimeoutDetected() {
struct timeval now;
gettimeofday(&now, NULL);
if(checkPoint.tv_sec == 0 && checkPoint.tv_usec == 0) {
checkPoint = now;
return false;
} else {
long long int elapsed = Util::difftv(now, checkPoint);
if(elapsed >= ((long long int)timeout)*1000000) {
return true;
} else {
return false;
}
}
}
bool PeerAbstractCommand::execute() {
try {
beforeSocketCheck();
if(checkSocketIsReadable && !readCheckTarget->isReadable(0)
|| checkSocketIsWritable && !writeCheckTarget->isWritable(0)) {
if(isTimeoutDetected()) {
// TODO
checkPoint.tv_sec = 0;
checkPoint.tv_usec = 0;
throw new DlRetryEx(EX_TIME_OUT);
}
e->commands.push(this);
return false;
}
updateCheckPoint();
bool returnValue = executeInternal();
//e->torrentMan->updatePeer(peer);
return returnValue;
} catch(Exception* err) {
logger->error(MSG_DOWNLOAD_ABORTED, err, cuid);
onAbort(err);
delete(err);
return prepareForNextPeer(0);
}
/*catch(DlRetryEx* err) {
logger->error(MSG_RESTARTING_DOWNLOAD, err, cuid);
peer->tryCount++;
bool isAbort = e->option->getAsInt(PREF_MAX_TRIES) != 0 &&
peer->tryCount >= e->option->getAsInt(PREF_MAX_TRIES);
int tryCount = peer->tryCount;
if(isAbort) {
onAbort(err);
}
delete(err);
if(isAbort) {
logger->error(MSG_MAX_TRY, cuid, tryCount);
return true;
} else {
return prepareForRetry(e->option->getAsInt(PREF_RETRY_WAIT));
}
}
*/
}
// TODO this method removed when PeerBalancerCommand is implemented
bool PeerAbstractCommand::prepareForNextPeer(int wait) {
return true;
}
bool PeerAbstractCommand::prepareForRetry(int wait) {
return true;
}
void PeerAbstractCommand::onAbort(Exception* ex) {
if(peer->isSeeder()) {
peer->error++;
} else {
peer->error += MAX_PEER_ERROR;
}
peer->resetStatus();
logger->debug("CUID#%d - peer %s:%d banned.", cuid, peer->ipaddr.c_str(), peer->port);
}
void PeerAbstractCommand::setReadCheckSocket(Socket* socket) {
if(socket == NULL) {
if(checkSocketIsReadable) {
e->deleteSocketForReadCheck(readCheckTarget);
checkSocketIsReadable = false;
readCheckTarget = NULL;
}
} else {
if(checkSocketIsReadable) {
if(readCheckTarget != socket) {
e->deleteSocketForReadCheck(readCheckTarget);
e->addSocketForReadCheck(socket);
readCheckTarget = socket;
}
} else {
e->addSocketForReadCheck(socket);
checkSocketIsReadable = true;
readCheckTarget = socket;
}
}
}
void PeerAbstractCommand::setWriteCheckSocket(Socket* socket) {
if(socket == NULL) {
if(checkSocketIsWritable) {
e->deleteSocketForWriteCheck(writeCheckTarget);
checkSocketIsWritable = false;
writeCheckTarget = NULL;
}
} else {
if(checkSocketIsWritable) {
if(writeCheckTarget != socket) {
e->deleteSocketForWriteCheck(writeCheckTarget);
e->addSocketForWriteCheck(socket);
writeCheckTarget = socket;
}
} else {
e->addSocketForWriteCheck(socket);
checkSocketIsWritable = true;
writeCheckTarget = socket;
}
}
}
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