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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or
#include "core.h"
#include "protocol.h"
#include "uint256.h"
#include <vector>
using namespace std;
typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
struct CDNSSeedData {
string name, host;
CDNSSeedData(const string &strName, const string &strHost) : name(strName), host(strHost) {}
* CChainParams defines various tweakable parameters of a given instance of the
* Bitcoin system. There are three: the main network on which people trade goods
* and services, the public test network which gets reset from time to time and
* a regression test mode which is intended for private networks only. It has
* minimal difficulty to ensure that blocks can be found instantly.
class CChainParams
enum Network {
enum Base58Type {
const uint256& HashGenesisBlock() const { return hashGenesisBlock; }
const MessageStartChars& MessageStart() const { return pchMessageStart; }
const vector<unsigned char>& AlertKey() const { return vAlertPubKey; }
int GetDefaultPort() const { return nDefaultPort; }
const uint256& ProofOfWorkLimit() const { return bnProofOfWorkLimit; }
int SubsidyHalvingInterval() const { return nSubsidyHalvingInterval; }
/* Used to check majorities for block version upgrade */
int EnforceBlockUpgradeMajority() const { return nEnforceBlockUpgradeMajority; }
int RejectBlockOutdatedMajority() const { return nRejectBlockOutdatedMajority; }
int ToCheckBlockUpgradeMajority() const { return nToCheckBlockUpgradeMajority; }
/* Used if GenerateBitcoins is called with a negative number of threads */
int DefaultMinerThreads() const { return nMinerThreads; }
const CBlock& GenesisBlock() const { return genesis; }
bool RequireRPCPassword() const { return fRequireRPCPassword; }
/* Make miner wait to have peers to avoid wasting work */
bool MiningRequiresPeers() const { return fMiningRequiresPeers; }
/* Default value for -checkmempool argument */
bool DefaultCheckMemPool() const { return fDefaultCheckMemPool; }
/* Allow mining of a min-difficulty block */
bool AllowMinDifficultyBlocks() const { return fAllowMinDifficultyBlocks; }
/* Make standard checks */
bool RequireStandard() const { return fRequireStandard; }
/* Make standard checks */
bool RPCisTestNet() const { return fRPCisTestNet; }
const string& DataDir() const { return strDataDir; }
/* Make miner stop after a block is found. In RPC, don't return
* until nGenProcLimit blocks are generated */
bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
Network NetworkID() const { return networkID; }
/* Return the BIP70 network string (main, test or regtest) */
std::string NetworkIDString() const { return strNetworkID; }
const vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
const vector<CAddress>& FixedSeeds() const { return vFixedSeeds; }
int RPCPort() const { return nRPCPort; }
CChainParams() {}
uint256 hashGenesisBlock;
MessageStartChars pchMessageStart;
// Raw pub key bytes for the broadcast alert signing key.
vector<unsigned char> vAlertPubKey;
int nDefaultPort;
int nRPCPort;
uint256 bnProofOfWorkLimit;
int nSubsidyHalvingInterval;
int nEnforceBlockUpgradeMajority;
int nRejectBlockOutdatedMajority;
int nToCheckBlockUpgradeMajority;
string strDataDir;
int nMinerThreads;
vector<CDNSSeedData> vSeeds;
std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
Network networkID;
std::string strNetworkID;
CBlock genesis;
vector<CAddress> vFixedSeeds;
bool fRequireRPCPassword;
bool fMiningRequiresPeers;
bool fDefaultCheckMemPool;
bool fAllowMinDifficultyBlocks;
bool fRequireStandard;
bool fRPCisTestNet;
bool fMineBlocksOnDemand;
* Return the currently selected parameters. This won't change after app startup
* outside of the unit tests.
const CChainParams &Params();
/** Sets the params returned by Params() to those for the given network. */
void SelectParams(CChainParams::Network network);
* Looks for -regtest or -testnet and then calls SelectParams as appropriate.
* Returns false if an invalid combination is given.
bool SelectParamsFromCommandLine();