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117 lines
4.1 KiB
117 lines
4.1 KiB
// Copyright (c) 2018 The Zcash developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#ifndef ZCASH_CONSENSUS_UPGRADES_H
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#define ZCASH_CONSENSUS_UPGRADES_H
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#include "consensus/params.h"
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#include <boost/optional.hpp>
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enum UpgradeState {
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UPGRADE_DISABLED,
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UPGRADE_PENDING,
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UPGRADE_ACTIVE
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};
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struct NUInfo {
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/** Branch ID (a random non-zero 32-bit value) */
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uint32_t nBranchId;
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/** User-facing name for the upgrade */
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std::string strName;
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/** User-facing information string about the upgrade */
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std::string strInfo;
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};
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extern const struct NUInfo NetworkUpgradeInfo[];
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// Consensus branch id to identify pre-overwinter (Sprout) consensus rules.
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extern const uint32_t SPROUT_BRANCH_ID;
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/**
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* Checks the state of a given network upgrade based on block height.
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* Caller must check that the height is >= 0 (and handle unknown heights).
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*/
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UpgradeState NetworkUpgradeState(
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int nHeight,
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const Consensus::Params& params,
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Consensus::UpgradeIndex idx);
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/**
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* Returns true if the given network upgrade is active as of the given block
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* height. Caller must check that the height is >= 0 (and handle unknown
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* heights).
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*/
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bool NetworkUpgradeActive(
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int nHeight,
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const Consensus::Params& params,
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Consensus::UpgradeIndex idx);
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/**
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* Returns the index of the most recent upgrade as of the given block height
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* (corresponding to the current "epoch"). Consensus::BASE_SPROUT is the
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* default value if no upgrades are active. Caller must check that the height
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* is >= 0 (and handle unknown heights).
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*/
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int CurrentEpoch(int nHeight, const Consensus::Params& params);
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/**
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* Returns the branch ID of the most recent upgrade as of the given block height
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* (corresponding to the current "epoch"), or 0 if no upgrades are active.
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* Caller must check that the height is >= 0 (and handle unknown heights).
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*/
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uint32_t CurrentEpochBranchId(int nHeight, const Consensus::Params& params);
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/**
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* Returns true if a given branch id is a valid nBranchId for one of the network
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* upgrades contained in NetworkUpgradeInfo.
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*/
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bool IsConsensusBranchId(int branchId);
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/**
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* Returns true if the given block height is the activation height for the given
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* upgrade.
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*/
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bool IsActivationHeight(
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int nHeight,
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const Consensus::Params& params,
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Consensus::UpgradeIndex upgrade);
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/**
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* Returns true if the given block height is the activation height for any upgrade.
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*/
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bool IsActivationHeightForAnyUpgrade(
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int nHeight,
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const Consensus::Params& params);
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/**
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* Returns the index of the next upgrade after the given block height, or
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* boost::none if there are no more known upgrades.
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*/
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boost::optional<int> NextEpoch(int nHeight, const Consensus::Params& params);
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/**
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* Returns the activation height for the next upgrade after the given block height,
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* or boost::none if there are no more known upgrades.
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*/
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boost::optional<int> NextActivationHeight(
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int nHeight,
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const Consensus::Params& params);
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#endif // ZCASH_CONSENSUS_UPGRADES_H
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