1 files changed, 13 insertions, 3 deletions
diff --git a/src/versionbits.h b/src/versionbits.h
index 7a929266aa..71dc0c8500 100644
--- a/src/versionbits.h
+++ b/src/versionbits.h
@@ -27,17 +27,25 @@ enum ThresholdState {
 
 // A map that gives the state for blocks whose height is a multiple of Period().
 // The map is indexed by the block's parent, however, so all keys in the map
-// will either be NULL or a block with (height + 1) % Period() == 0.
+// will either be nullptr or a block with (height + 1) % Period() == 0.
 typedef std::map<const CBlockIndex*, ThresholdState> ThresholdConditionCache;
 
-struct BIP9DeploymentInfo {
+struct VBDeploymentInfo {
     /** Deployment name */
     const char *name;
     /** Whether GBT clients can safely ignore this rule in simplified usage */
     bool gbt_force;
 };
 
-extern const struct BIP9DeploymentInfo VersionBitsDeploymentInfo[];
+struct BIP9Stats {
+    int period;
+    int threshold;
+    int elapsed;
+    int count;
+    bool possible;
+};
+
+extern const struct VBDeploymentInfo VersionBitsDeploymentInfo[];
 
 /**
  * Abstract class that implements BIP9-style threshold logic, and caches results.
@@ -51,6 +59,7 @@ protected:
     virtual int Threshold(const Consensus::Params& params) const =0;
 
 public:
+    BIP9Stats GetStateStatisticsFor(const CBlockIndex* pindex, const Consensus::Params& params) const;
     // Note that the functions below take a pindexPrev as input: they compute information for block B based on its parent.
     ThresholdState GetStateFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
     int GetStateSinceHeightFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
@@ -64,6 +73,7 @@ struct VersionBitsCache
 };
 
 ThresholdState VersionBitsState(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
+BIP9Stats VersionBitsStatistics(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos);
 int VersionBitsStateSinceHeight(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
 uint32_t VersionBitsMask(const Consensus::Params& params, Consensus::DeploymentPos pos);