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// Copyright (c) 2020-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_DEPLOYMENTSTATUS_H
#define BITCOIN_DEPLOYMENTSTATUS_H
#include <chain.h>
#include <versionbits.h>
#include <limits>
/** Determine if a deployment is active for the next block */
inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::BuriedDeployment dep, [[maybe_unused]] VersionBitsCache& versionbitscache)
{
assert(Consensus::ValidDeployment(dep));
return (pindexPrev == nullptr ? 0 : pindexPrev->nHeight + 1) >= params.DeploymentHeight(dep);
}
inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos dep, VersionBitsCache& versionbitscache)
{
assert(Consensus::ValidDeployment(dep));
return ThresholdState::ACTIVE == versionbitscache.State(pindexPrev, params, dep);
}
/** Determine if a deployment is active for this block */
inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::BuriedDeployment dep, [[maybe_unused]] VersionBitsCache& versionbitscache)
{
assert(Consensus::ValidDeployment(dep));
return index.nHeight >= params.DeploymentHeight(dep);
}
inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::DeploymentPos dep, VersionBitsCache& versionbitscache)
{
assert(Consensus::ValidDeployment(dep));
return DeploymentActiveAfter(index.pprev, params, dep, versionbitscache);
}
/** Determine if a deployment is enabled (can ever be active) */
inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::BuriedDeployment dep)
{
assert(Consensus::ValidDeployment(dep));
return params.DeploymentHeight(dep) != std::numeric_limits<int>::max();
}
inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::DeploymentPos dep)
{
assert(Consensus::ValidDeployment(dep));
return params.vDeployments[dep].nStartTime != Consensus::BIP9Deployment::NEVER_ACTIVE;
}
#endif // BITCOIN_DEPLOYMENTSTATUS_H
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