b2554af0df
Tree-SHA512: 7bcdf6c42ac75fb24df8d6b60bddcac5f14363a3f7dd89a239f798bb14b5c911c2d7535a0372c2998719d33a561d0d28b0b6764aaf1f2ec330d4035ce965997b -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEz7FuIclQ9n+pXlWPLuufXMCVJsEFAmEp9EoACgkQLuufXMCV JsGvcQ//ZSQOCEFH3e+gBuXHthXG2UZsHagC715ruQquhRt4aOKiFLu/eJGwiKBt Frc1wLF21dgtl/2JUtVBpVb54whni1PKgDowtkk4Ge7gWM0awW2OnvdgA21E+syD 501duaW6ORvo5icmf7uPQ7u/g9Ks1s1chBr1bLnYqqqg2e3/aqC4+drTjd8wziy3 J+8Bzc+KLAklgv8cIpH1EDuFGrumlMYxW0KHqJeN7Vk8wGX8PINrkEGCyrBDQ7DY BEd6txwcivPxqMfj61OP60DU0oG6IVECGMPrANtyK+ba0FHl+GkNQuTaX8zv4Ik9 dKscJ1OiRX2ER/pEJTwg8PJfOET5D/WRc1xSmrYBOK7cFLtYVqH2yvnHiLlWvH1P 7TQOAjfzQwa+yUnGRf2dWW+Rngv876JjBUX5vbm4UC5Geo8Bdl3z9U9glaq03fVd 3Q8uAgljLnXWFiylK9oDYhsFfWSUYgjyhM11LCb5K3y3t7ageclu6RTl574jy5sb 8qBwQxpJt5UtwIK2SNqq1iDmMW3J65sb3CmTND9ppDA79GfZzwlvGVwO1bN2TC6m 0dGTPvOPWS9x/PSq8+8o1uCHDzHrW9B5lUikf8kx+zNI7Rd3QLJ0pbdqwrJ3CcOk ttV5QXAYD2trfkCKEi69eiIpH21rasqjyI11ZoH4u+0BCpw8hQg= =GXjC -----END PGP SIGNATURE----- Merge tag 'v0.21.2rc2' into 1.21-dev Bitcoin Core 0.21.2 release candidate 2 Tree-SHA512: 7bcdf6c42ac75fb24df8d6b60bddcac5f14363a3f7dd89a239f798bb14b5c911c2d7535a0372c2998719d33a561d0d28b0b6764aaf1f2ec330d4035ce965997b
117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2019 The Bitcoin Core developers
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// Distributed under the MIT 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_CONSENSUS_PARAMS_H
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#define BITCOIN_CONSENSUS_PARAMS_H
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#include <uint256.h>
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#include <limits>
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namespace Consensus {
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enum DeploymentPos
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{
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DEPLOYMENT_TESTDUMMY,
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DEPLOYMENT_TAPROOT, // Deployment of Schnorr/Taproot (BIPs 340-342)
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// NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp
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MAX_VERSION_BITS_DEPLOYMENTS
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};
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/**
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* Struct for each individual consensus rule change using BIP9.
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*/
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struct BIP9Deployment {
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/** Bit position to select the particular bit in nVersion. */
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int bit;
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/** Start MedianTime for version bits miner confirmation. Can be a date in the past */
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int64_t nStartTime;
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/** Timeout/expiry MedianTime for the deployment attempt. */
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int64_t nTimeout;
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/** If lock in occurs, delay activation until at least this block
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* height. Note that activation will only occur on a retarget
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* boundary.
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*/
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int min_activation_height{0};
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/** Constant for nTimeout very far in the future. */
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static constexpr int64_t NO_TIMEOUT = std::numeric_limits<int64_t>::max();
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/** Special value for nStartTime indicating that the deployment is always active.
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* This is useful for testing, as it means tests don't need to deal with the activation
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* process (which takes at least 3 BIP9 intervals). Only tests that specifically test the
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* behaviour during activation cannot use this. */
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static constexpr int64_t ALWAYS_ACTIVE = -1;
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/** Special value for nStartTime indicating that the deployment is never active.
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* This is useful for integrating the code changes for a new feature
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* prior to deploying it on some or all networks. */
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static constexpr int64_t NEVER_ACTIVE = -2;
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};
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/**
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* Parameters that influence chain consensus.
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*/
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struct Params {
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uint256 hashGenesisBlock;
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int nSubsidyHalvingInterval;
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/* Block hash that is excepted from BIP16 enforcement */
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uint256 BIP16Exception;
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/** Block height and hash at which BIP34 becomes active */
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int BIP34Height;
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uint256 BIP34Hash;
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/** Block height at which BIP65 becomes active */
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int BIP65Height;
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/** Block height at which BIP66 becomes active */
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int BIP66Height;
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/** Block height at which CSV (BIP68, BIP112 and BIP113) becomes active */
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int CSVHeight;
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/** Block height at which Segwit (BIP141, BIP143 and BIP147) becomes active.
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* Note that segwit v0 script rules are enforced on all blocks except the
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* BIP 16 exception blocks. */
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int SegwitHeight;
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/** Don't warn about unknown BIP 9 activations below this height.
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* This prevents us from warning about the CSV and segwit activations. */
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int MinBIP9WarningHeight;
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/**
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* Minimum blocks including miner confirmation of the total of 2016 blocks in a retargeting period,
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* (nPowTargetTimespan / nPowTargetSpacing) which is also used for BIP9 deployments.
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* Examples: 1916 for 95%, 1512 for testchains.
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*/
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uint32_t nRuleChangeActivationThreshold;
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uint32_t nMinerConfirmationWindow;
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BIP9Deployment vDeployments[MAX_VERSION_BITS_DEPLOYMENTS];
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/** Proof of work parameters */
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uint256 powLimit;
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bool fPowAllowMinDifficultyBlocks;
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bool fPowNoRetargeting;
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int64_t nPowTargetSpacing;
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int64_t nPowTargetTimespan;
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int64_t DifficultyAdjustmentInterval() const { return nPowTargetTimespan / nPowTargetSpacing; }
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/** The best chain should have at least this much work */
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uint256 nMinimumChainWork;
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/** By default assume that the signatures in ancestors of this block are valid */
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uint256 defaultAssumeValid;
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/** Minimum interval an assumed valid block must be buried, to be valid. */
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int64_t nAssumeValidMinTime;
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/**
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* If true, witness commitments contain a payload equal to a Bitcoin Script solution
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* to the signet challenge. See BIP325.
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*/
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bool signet_blocks{false};
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std::vector<uint8_t> signet_challenge;
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bool fSimplifiedRewards;
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bool fShortEarlyCoinbase;
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/** Auxpow parameters */
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int32_t nAuxpowChainId;
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bool fStrictChainId;
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int nAuxPowHeight; // 0 for "always on"
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};
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} // namespace Consensus
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#endif // BITCOIN_CONSENSUS_PARAMS_H
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