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       1                 :            : // Copyright (c) 2020-2022 The Bitcoin Core developers
       2                 :            : // Distributed under the MIT software license, see the accompanying
       3                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4                 :            : 
       5                 :            : #ifndef BITCOIN_DEPLOYMENTSTATUS_H
       6                 :            : #define BITCOIN_DEPLOYMENTSTATUS_H
       7                 :            : 
       8                 :            : #include <chain.h>
       9                 :            : #include <versionbits.h>
      10                 :            : 
      11                 :            : #include <limits>
      12                 :            : 
      13                 :            : /** Determine if a deployment is active for the next block */
      14                 :     407340 : inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::BuriedDeployment dep, [[maybe_unused]] VersionBitsCache& versionbitscache)
      15                 :            : {
      16         [ +  - ]:     407340 :     assert(Consensus::ValidDeployment(dep));
      17         [ +  - ]:     407340 :     return (pindexPrev == nullptr ? 0 : pindexPrev->nHeight + 1) >= params.DeploymentHeight(dep);
      18                 :            : }
      19                 :            : 
      20                 :            : inline bool DeploymentActiveAfter(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos dep, VersionBitsCache& versionbitscache)
      21                 :            : {
      22                 :            :     assert(Consensus::ValidDeployment(dep));
      23                 :            :     return ThresholdState::ACTIVE == versionbitscache.State(pindexPrev, params, dep);
      24                 :            : }
      25                 :            : 
      26                 :            : /** Determine if a deployment is active for this block */
      27                 :     703012 : inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::BuriedDeployment dep, [[maybe_unused]] VersionBitsCache& versionbitscache)
      28                 :            : {
      29         [ +  - ]:     703012 :     assert(Consensus::ValidDeployment(dep));
      30                 :     703012 :     return index.nHeight >= params.DeploymentHeight(dep);
      31                 :            : }
      32                 :            : 
      33                 :            : inline bool DeploymentActiveAt(const CBlockIndex& index, const Consensus::Params& params, Consensus::DeploymentPos dep, VersionBitsCache& versionbitscache)
      34                 :            : {
      35                 :            :     assert(Consensus::ValidDeployment(dep));
      36                 :            :     return DeploymentActiveAfter(index.pprev, params, dep, versionbitscache);
      37                 :            : }
      38                 :            : 
      39                 :            : /** Determine if a deployment is enabled (can ever be active) */
      40                 :         10 : inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::BuriedDeployment dep)
      41                 :            : {
      42         [ +  - ]:         10 :     assert(Consensus::ValidDeployment(dep));
      43                 :         10 :     return params.DeploymentHeight(dep) != std::numeric_limits<int>::max();
      44                 :            : }
      45                 :            : 
      46                 :          4 : inline bool DeploymentEnabled(const Consensus::Params& params, Consensus::DeploymentPos dep)
      47                 :            : {
      48         [ +  - ]:          4 :     assert(Consensus::ValidDeployment(dep));
      49                 :          4 :     return params.vDeployments[dep].nStartTime != Consensus::BIP9Deployment::NEVER_ACTIVE;
      50                 :            : }
      51                 :            : 
      52                 :            : #endif // BITCOIN_DEPLOYMENTSTATUS_H