1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_CHAINPARAMS_H
#define BITCOIN_CHAINPARAMS_H
#include "chainparamsbase.h"
#include "checkpoints.h"
#include "primitives/block.h"
#include "protocol.h"
#include "uint256.h"
#include <vector>
typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
struct CDNSSeedData {
std::string name, host;
CDNSSeedData(const std::string &strName, const std::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
{
public:
enum Base58Type {
PUBKEY_ADDRESS,
SCRIPT_ADDRESS,
SECRET_KEY,
EXT_PUBLIC_KEY,
EXT_SECRET_KEY,
MAX_BASE58_TYPES
};
const uint256& HashGenesisBlock() const { return hashGenesisBlock; }
const MessageStartChars& MessageStart() const { return pchMessageStart; }
const std::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 and -checkblockindex argument */
bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
/** Allow mining of a min-difficulty block */
bool AllowMinDifficultyBlocks() const { return fAllowMinDifficultyBlocks; }
/** Skip proof-of-work check: allow mining of any difficulty block */
bool SkipProofOfWorkCheck() const { return fSkipProofOfWorkCheck; }
/** Make standard checks */
bool RequireStandard() const { return fRequireStandard; }
int64_t TargetTimespan() const { return nTargetTimespan; }
int64_t TargetSpacing() const { return nTargetSpacing; }
int64_t Interval() const { return nTargetTimespan / nTargetSpacing; }
/** Make miner stop after a block is found. In RPC, don't return until nGenProcLimit blocks are generated */
bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
/** In the future use NetworkIDString() for RPC fields */
bool TestnetToBeDeprecatedFieldRPC() const { return fTestnetToBeDeprecatedFieldRPC; }
/** Return the BIP70 network string (main, test or regtest) */
std::string NetworkIDString() const { return strNetworkID; }
const std::vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
const std::vector<CAddress>& FixedSeeds() const { return vFixedSeeds; }
virtual const Checkpoints::CCheckpointData& Checkpoints() const = 0;
protected:
CChainParams() {}
uint256 hashGenesisBlock;
MessageStartChars pchMessageStart;
//! Raw pub key bytes for the broadcast alert signing key.
std::vector<unsigned char> vAlertPubKey;
int nDefaultPort;
uint256 bnProofOfWorkLimit;
int nSubsidyHalvingInterval;
int nEnforceBlockUpgradeMajority;
int nRejectBlockOutdatedMajority;
int nToCheckBlockUpgradeMajority;
int64_t nTargetTimespan;
int64_t nTargetSpacing;
int nMinerThreads;
std::vector<CDNSSeedData> vSeeds;
std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
CBaseChainParams::Network networkID;
std::string strNetworkID;
CBlock genesis;
std::vector<CAddress> vFixedSeeds;
bool fRequireRPCPassword;
bool fMiningRequiresPeers;
bool fAllowMinDifficultyBlocks;
bool fDefaultConsistencyChecks;
bool fRequireStandard;
bool fMineBlocksOnDemand;
bool fSkipProofOfWorkCheck;
bool fTestnetToBeDeprecatedFieldRPC;
};
/**
* Modifiable parameters interface is used by test cases to adapt the parameters in order
* to test specific features more easily. Test cases should always restore the previous
* values after finalization.
*/
class CModifiableParams {
public:
//! Published setters to allow changing values in unit test cases
virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval) =0;
virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority)=0;
virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority)=0;
virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority)=0;
virtual void setDefaultConsistencyChecks(bool aDefaultConsistencyChecks)=0;
virtual void setAllowMinDifficultyBlocks(bool aAllowMinDifficultyBlocks)=0;
virtual void setSkipProofOfWorkCheck(bool aSkipProofOfWorkCheck)=0;
};
/**
* Return the currently selected parameters. This won't change after app startup
* outside of the unit tests.
*/
const CChainParams &Params();
/** Return parameters for the given network. */
CChainParams &Params(CBaseChainParams::Network network);
/** Get modifiable network parameters (UNITTEST only) */
CModifiableParams *ModifiableParams();
/** Sets the params returned by Params() to those for the given network. */
void SelectParams(CBaseChainParams::Network network);
/**
* Looks for -regtest or -testnet and then calls SelectParams as appropriate.
* Returns false if an invalid combination is given.
*/
bool SelectParamsFromCommandLine();
#endif // BITCOIN_CHAINPARAMS_H
|
