bitcoin/src/deploymentstatus.h
Anthony Towns 2b0d291da8 [refactor] Add deploymentstatus.h
Provides DeploymentEnabled, DeploymentActiveAt, and DeploymentActiveAfter
helpers for checking the status of buried deployments. Can be overloaded
so the same syntax works for non-buried deployments, allowing future
soft forks to be changed from signalled to buried deployments without
having to touch the implementation code.

Replaces IsWitnessEnabled and IsScriptWitnessEnabled.
2021-06-29 17:11:12 +10:00

34 lines
1.2 KiB
C++

// Copyright (c) 2020 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 <limits>
/** Determine if a deployment is active for the next block */
inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::BuriedDeployment dep)
{
assert(Consensus::ValidDeployment(dep));
return (pindexPrev == nullptr ? 0 : pindexPrev->nHeight + 1) >= params.DeploymentHeight(dep);
}
/** Determine if a deployment is active for this block */
inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::BuriedDeployment dep)
{
assert(Consensus::ValidDeployment(dep));
return index.nHeight >= params.DeploymentHeight(dep);
}
/** 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();
}
#endif // BITCOIN_DEPLOYMENTSTATUS_H