src/BtConstants.h - master - githubmirror/aria2

src/BtConstants.h
68 строк2 KB
Tatsuhiro Tsujikawa
Extend maximum BitTorrent incoming payload size to 64KiB
20 июл 2016, 16:42
20 июл 2016, 16:429a63e59
/* <!-- 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 --> */
#ifndef D_BT_CONSTANTS_H
#define D_BT_CONSTANTS_H

#include "common.h"
#include "a2functional.h"

namespace aria2 {

constexpr size_t INFO_HASH_LENGTH = 20;

constexpr size_t PIECE_HASH_LENGTH = 20;

constexpr size_t PEER_ID_LENGTH = 20;

constexpr size_t MAX_BLOCK_LENGTH = 64_k;

constexpr size_t DEFAULT_MAX_OUTSTANDING_REQUEST = 6;

// Upper Bound of the number of outstanding request
constexpr size_t UB_MAX_OUTSTANDING_REQUEST = 256;

constexpr size_t METADATA_PIECE_SIZE = 16_k;

constexpr const char LPD_MULTICAST_ADDR[] = "239.192.152.143";

constexpr uint16_t LPD_MULTICAST_PORT = 6771;

constexpr size_t COMPACT_LEN_IPV4 = 6;

constexpr size_t COMPACT_LEN_IPV6 = 18;

} // namespace aria2

#endif // D_BT_CONSTANTS_H