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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 "BtHaveMessage.h"
#include "PeerMessageUtil.h"
#include "Util.h"
#include "DlAbortEx.h"
#include "message.h"
BtHaveMessageHandle BtHaveMessage::create(const unsigned char* data, int32_t dataLength) {
if(dataLength != 5) {
throw new DlAbortEx(EX_INVALID_PAYLOAD_SIZE, "have", dataLength, 5);
}
int8_t id = PeerMessageUtil::getId(data);
if(id != ID) {
throw new DlAbortEx(EX_INVALID_BT_MESSAGE_ID, id, "have", ID);
}
BtHaveMessageHandle message = new BtHaveMessage();
message->setIndex(PeerMessageUtil::getIntParam(data, 1));
return message;
}
void BtHaveMessage::doReceivedAction() {
peer->updateBitfield(index, 1);
}
bool BtHaveMessage::sendPredicate() const {
return !peer->hasPiece(index);
}
int32_t BtHaveMessage::MESSAGE_LENGTH = 9;
const unsigned char* BtHaveMessage::getMessage() {
if(!msg) {
/**
* len --- 5, 4bytes
* id --- 4, 1byte
* piece index --- index, 4bytes
* total: 9bytes
*/
msg = new unsigned char[MESSAGE_LENGTH];
PeerMessageUtil::createPeerMessageString(msg, MESSAGE_LENGTH, 5, ID);
PeerMessageUtil::setIntParam(&msg[5], index);
}
return msg;
}
int32_t BtHaveMessage::getMessageLength() {
return MESSAGE_LENGTH;
}
string BtHaveMessage::toString() const {
return "have index="+Util::itos(index);
}
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