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/*
This file is part of cpp-ethereum.
cpp-ethereum 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 3 of the License, or
(at your option) any later version.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file CommonNet.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*
* Miscellanea required for the PeerServer/Session classes.
*/
#pragma once
#include <string>
#include <chrono>
#include <libdevcore/Common.h>
#include <libdevcore/Log.h>
namespace dev
{
class OverlayDB;
namespace eth
{
#if ETH_DEBUG
static const unsigned c_maxHashes = 2048; ///< Maximum number of hashes BlockHashes will ever send.
static const unsigned c_maxHashesAsk = 2048; ///< Maximum number of hashes GetBlockHashes will ever ask for.
static const unsigned c_maxBlocks = 128; ///< Maximum number of blocks Blocks will ever send.
static const unsigned c_maxBlocksAsk = 128; ///< Maximum number of blocks we ask to receive in Blocks (when using GetChain).
static const unsigned c_maxPayload = 262144; ///< Maximum size of packet for us to send.
#else
static const unsigned c_maxHashes = 2048; ///< Maximum number of hashes BlockHashes will ever send.
static const unsigned c_maxHashesAsk = 2048; ///< Maximum number of hashes GetBlockHashes will ever ask for.
static const unsigned c_maxBlocks = 128; ///< Maximum number of blocks Blocks will ever send.
static const unsigned c_maxBlocksAsk = 128; ///< Maximum number of blocks we ask to receive in Blocks (when using GetChain).
static const unsigned c_maxPayload = 262144; ///< Maximum size of packet for us to send.
#endif
class BlockChain;
class TransactionQueue;
class EthereumHost;
class EthereumPeer;
enum
{
StatusPacket = 0,
NewBlockHashesPacket,
TransactionsPacket,
GetBlockHashesPacket,
BlockHashesPacket,
GetBlocksPacket,
BlocksPacket,
NewBlockPacket,
GetBlockHashesByNumberPacket,
PacketCount
};
enum class Asking
{
State,
Hashes,
Blocks,
Nothing
};
enum class SyncState
{
Idle, ///< Initial chain sync complete. Waiting for new packets
WaitingQueue, ///< Block downloading paused. Waiting for block queue to process blocks and free space
HashesNegotiate, ///< Waiting for first hashes to arrive
HashesSingle, ///< Locked on and downloading hashes from a single peer
HashesParallel, ///< Downloading hashes from multiple peers over
Blocks, ///< Downloading blocks
NewBlocks, ///< Downloading blocks learned from NewHashes packet
Size /// Must be kept last
};
struct SyncStatus
{
SyncState state = SyncState::Idle;
unsigned hashesTotal = 0;
unsigned hashesReceived = 0;
bool hashesEstimated = false;
unsigned blocksTotal = 0;
unsigned blocksReceived = 0;
};
}
}