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fa5658ed07
The helper was previously unused. This commit changes it to be more meaningful and puts it to use. See previous discussion at https://github.com/bitcoin/bitcoin/pull/19438/files#r650687320
55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
// Copyright (c) 2020 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_DEPLOYMENTSTATUS_H
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#define BITCOIN_DEPLOYMENTSTATUS_H
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#include <chain.h>
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#include <versionbits.h>
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#include <limits>
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/** Global cache for versionbits deployment status */
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extern VersionBitsCache g_versionbitscache;
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/** Determine if a deployment is active for the next block */
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inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::BuriedDeployment dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return (pindexPrev == nullptr ? 0 : pindexPrev->nHeight + 1) >= params.DeploymentHeight(dep);
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}
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inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return ThresholdState::ACTIVE == g_versionbitscache.State(pindexPrev, params, dep);
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}
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/** Determine if a deployment is active for this block */
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inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::BuriedDeployment dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return index.nHeight >= params.DeploymentHeight(dep);
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}
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inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::DeploymentPos dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return DeploymentActiveAfter(index.pprev, params, dep);
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}
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/** Determine if a deployment is enabled (can ever be active) */
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inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::BuriedDeployment dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return params.DeploymentHeight(dep) != std::numeric_limits<int>::max();
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}
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inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::DeploymentPos dep)
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{
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assert(Consensus::ValidDeployment(dep));
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return params.vDeployments[dep].nStartTime != Consensus::BIP9Deployment::NEVER_ACTIVE;
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}
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#endif // BITCOIN_DEPLOYMENTSTATUS_H
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