src/chainparamsbase.cpp

   1 // Copyright (c) 2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2017 The Bitcoin Core developers
   3 // Distributed under the MIT software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include <chainparamsbase.h>
   7
   8 #include <tinyformat.h>
   9 #include <util.h>
  10
  11 #include <assert.h>
  12
  13 const std::string CBaseChainParams::MAIN = "main";
  14 const std::string CBaseChainParams::TESTNET = "test";
  15 const std::string CBaseChainParams::REGTEST = "regtest";
  16
  17 void AppendParamsHelpMessages(std::string& strUsage, bool debugHelp)
  18 {
  19     strUsage += HelpMessageGroup(_("Chain selection options:"));
  20     strUsage += HelpMessageOpt("-testnet", _("Use the test chain"));
  21     if (debugHelp) {
  22         strUsage += HelpMessageOpt("-regtest", "Enter regression test mode, which uses a special chain in which blocks can be solved instantly. "
  23                                    "This is intended for regression testing tools and app development.");
  24     }
  25 }
  26
  27 /**
  28  * Main network
  29  */
  30 class CBaseMainParams : public CBaseChainParams
  31 {
  32 public:
  33     CBaseMainParams()
  34     {
  35         nRPCPort = 8332;
  36     }
  37 };
  38
  39 /**
  40  * Testnet (v3)
  41  */
  42 class CBaseTestNetParams : public CBaseChainParams
  43 {
  44 public:
  45     CBaseTestNetParams()
  46     {
  47         nRPCPort = 18332;
  48         strDataDir = "testnet3";
  49     }
  50 };
  51
  52 /*
  53  * Regression test
  54  */
  55 class CBaseRegTestParams : public CBaseChainParams
  56 {
  57 public:
  58     CBaseRegTestParams()
  59     {
  60         nRPCPort = 18443;
  61         strDataDir = "regtest";
  62     }
  63 };
  64
  65 static std::unique_ptr<CBaseChainParams> globalChainBaseParams;
  66
  67 const CBaseChainParams& BaseParams()
  68 {
  69     assert(globalChainBaseParams);
  70     return *globalChainBaseParams;
  71 }
  72
  73 std::unique_ptr<CBaseChainParams> CreateBaseChainParams(const std::string& chain)
  74 {
  75     if (chain == CBaseChainParams::MAIN)
  76         return std::unique_ptr<CBaseChainParams>(new CBaseMainParams());
  77     else if (chain == CBaseChainParams::TESTNET)
  78         return std::unique_ptr<CBaseChainParams>(new CBaseTestNetParams());
  79     else if (chain == CBaseChainParams::REGTEST)
  80         return std::unique_ptr<CBaseChainParams>(new CBaseRegTestParams());
  81     else
  82         throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
  83 }
  84
  85 void SelectBaseParams(const std::string& chain)
  86 {
  87     globalChainBaseParams = CreateBaseChainParams(chain);
  88 }
  89
  90 std::string ChainNameFromCommandLine()
  91 {
  92     bool fRegTest = gArgs.GetBoolArg("-regtest", false);
  93     bool fTestNet = gArgs.GetBoolArg("-testnet", false);
  94
  95     if (fTestNet && fRegTest)
  96         throw std::runtime_error("Invalid combination of -regtest and -testnet.");
  97     if (fRegTest)
  98         return CBaseChainParams::REGTEST;
  99     if (fTestNet)
 100         return CBaseChainParams::TESTNET;
 101     return CBaseChainParams::MAIN;
 102 }