aria2/src/BtHaveMessage.cc

/* <!-- 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 "Peer.h"
#include "PieceStorage.h"
#include "message.h"
#include "DlAbortEx.h"

namespace aria2 {

const char BtHaveMessage::NAME[] = "have";

BtHaveMessage::BtHaveMessage(size_t index) : IndexBtMessage(ID, NAME, index) {}

std::unique_ptr<BtHaveMessage> BtHaveMessage::create(const unsigned char* data,
                                                     size_t dataLength)
{
  return IndexBtMessage::create<BtHaveMessage>(data, dataLength);
}

void BtHaveMessage::doReceivedAction()
{
  if (isMetadataGetMode()) {
    return;
  }
  size_t index = getIndex();
  if (!getPeer()->hasPiece(index)) {
    getPeer()->updateBitfield(index, 1);
    getPieceStorage()->addPieceStats(index);
    if (getPeer()->isSeeder() && getPieceStorage()->downloadFinished()) {
      throw DL_ABORT_EX(MSG_GOOD_BYE_SEEDER);
    }
  }
}

} // namespace aria2