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102 lines
3.2 KiB
102 lines
3.2 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2013 The Bitcoin developers |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef BITCOIN_CHAIN_PARAMS_H |
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#define BITCOIN_CHAIN_PARAMS_H |
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#include "bignum.h" |
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#include "uint256.h" |
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#include "util.h" |
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#include <vector> |
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using namespace std; |
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#define MESSAGE_START_SIZE 4 |
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typedef unsigned char MessageStartChars[MESSAGE_START_SIZE]; |
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class CAddress; |
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class CBlock; |
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struct CDNSSeedData { |
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string name, host; |
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CDNSSeedData(const string &strName, const string &strHost) : name(strName), host(strHost) {} |
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}; |
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/** |
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* CChainParams defines various tweakable parameters of a given instance of the |
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* Bitcoin system. There are three: the main network on which people trade goods |
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* and services, the public test network which gets reset from time to time and |
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* a regression test mode which is intended for private networks only. It has |
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* minimal difficulty to ensure that blocks can be found instantly. |
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*/ |
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class CChainParams |
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{ |
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public: |
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enum Network { |
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MAIN, |
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TESTNET, |
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REGTEST, |
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}; |
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enum Base58Type { |
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PUBKEY_ADDRESS, |
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SCRIPT_ADDRESS, |
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SECRET_KEY, |
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MAX_BASE58_TYPES |
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}; |
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const uint256& HashGenesisBlock() const { return hashGenesisBlock; } |
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const MessageStartChars& MessageStart() const { return pchMessageStart; } |
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const vector<unsigned char>& AlertKey() const { return vAlertPubKey; } |
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int GetDefaultPort() const { return nDefaultPort; } |
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const CBigNum& ProofOfWorkLimit() const { return bnProofOfWorkLimit; } |
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int SubsidyHalvingInterval() const { return nSubsidyHalvingInterval; } |
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virtual const CBlock& GenesisBlock() const = 0; |
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virtual bool RequireRPCPassword() const { return true; } |
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const string& DataDir() const { return strDataDir; } |
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virtual Network NetworkID() const = 0; |
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const vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; } |
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int Base58Prefix(Base58Type type) const { return base58Prefixes[type]; } |
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virtual const vector<CAddress>& FixedSeeds() const = 0; |
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int RPCPort() const { return nRPCPort; } |
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protected: |
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CChainParams() {}; |
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uint256 hashGenesisBlock; |
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MessageStartChars pchMessageStart; |
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// Raw pub key bytes for the broadcast alert signing key. |
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vector<unsigned char> vAlertPubKey; |
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int nDefaultPort; |
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int nRPCPort; |
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CBigNum bnProofOfWorkLimit; |
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int nSubsidyHalvingInterval; |
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string strDataDir; |
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vector<CDNSSeedData> vSeeds; |
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int base58Prefixes[MAX_BASE58_TYPES]; |
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}; |
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/** |
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* Return the currently selected parameters. This won't change after app startup |
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* outside of the unit tests. |
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*/ |
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const CChainParams &Params(); |
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/** Sets the params returned by Params() to those for the given network. */ |
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void SelectParams(CChainParams::Network network); |
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/** |
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* Looks for -regtest or -testnet and then calls SelectParams as appropriate. |
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* Returns false if an invalid combination is given. |
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*/ |
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bool SelectParamsFromCommandLine(); |
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inline bool TestNet() { |
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// Note: it's deliberate that this returns "false" for regression test mode. |
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return Params().NetworkID() == CChainParams::TESTNET; |
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} |
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#endif
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