[MOVEONLY] Move progress estimation out of checkpoints

src/checkpoints.cpp

@@ -15,46 +15,6 @@
 
 namespace Checkpoints {
 
-    /**
-     * How many times slower we expect checking transactions after the last
-     * checkpoint to be (from checking signatures, which is skipped up to the
-     * last checkpoint). This number is a compromise, as it can't be accurate
-     * for every system. When reindexing from a fast disk with a slow CPU, it
-     * can be up to 20, while when downloading from a slow network with a
-     * fast multicore CPU, it won't be much higher than 1.
-     */
-    static const double SIGCHECK_VERIFICATION_FACTOR = 5.0;
-
-    //! Guess how far we are in the verification process at the given block index
-    double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex *pindex, bool fSigchecks) {
-        if (pindex==NULL)
-            return 0.0;
-
-        int64_t nNow = time(NULL);
-
-        double fSigcheckVerificationFactor = fSigchecks ? SIGCHECK_VERIFICATION_FACTOR : 1.0;
-        double fWorkBefore = 0.0; // Amount of work done before pindex
-        double fWorkAfter = 0.0;  // Amount of work left after pindex (estimated)
-        // Work is defined as: 1.0 per transaction before the last checkpoint, and
-        // fSigcheckVerificationFactor per transaction after.
-
-        if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) {
-            double nCheapBefore = pindex->nChainTx;
-            double nCheapAfter = data.nTransactionsLastCheckpoint - pindex->nChainTx;
-            double nExpensiveAfter = (nNow - data.nTimeLastCheckpoint)/86400.0*data.fTransactionsPerDay;
-            fWorkBefore = nCheapBefore;
-            fWorkAfter = nCheapAfter + nExpensiveAfter*fSigcheckVerificationFactor;
-        } else {
-            double nCheapBefore = data.nTransactionsLastCheckpoint;
-            double nExpensiveBefore = pindex->nChainTx - data.nTransactionsLastCheckpoint;
-            double nExpensiveAfter = (nNow - pindex->GetBlockTime())/86400.0*data.fTransactionsPerDay;
-            fWorkBefore = nCheapBefore + nExpensiveBefore*fSigcheckVerificationFactor;
-            fWorkAfter = nExpensiveAfter*fSigcheckVerificationFactor;
-        }
-
-        return fWorkBefore / (fWorkBefore + fWorkAfter);
-    }
-
     CBlockIndex* GetLastCheckpoint(const CCheckpointData& data)
     {
         const MapCheckpoints& checkpoints = data.mapCheckpoints;

src/checkpoints.h

@@ -22,8 +22,6 @@ namespace Checkpoints
 //! Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
 CBlockIndex* GetLastCheckpoint(const CCheckpointData& data);
 
-double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex* pindex, bool fSigchecks = true);
-
 } //namespace Checkpoints
 
 #endif // BITCOIN_CHECKPOINTS_H

src/qt/clientmodel.cpp

@@ -130,7 +130,7 @@ double ClientModel::getVerificationProgress(const CBlockIndex *tipIn) const
         LOCK(cs_main);
         tip = chainActive.Tip();
     }
-    return Checkpoints::GuessVerificationProgress(Params().Checkpoints(), tip);
+    return GuessVerificationProgress(Params().Checkpoints(), tip);
 }
 
 void ClientModel::updateTimer()

src/rpc/blockchain.cpp

@@ -1073,7 +1073,7 @@ UniValue getblockchaininfo(const JSONRPCRequest& request)
     obj.push_back(Pair("bestblockhash",         chainActive.Tip()->GetBlockHash().GetHex()));
     obj.push_back(Pair("difficulty",            (double)GetDifficulty()));
     obj.push_back(Pair("mediantime",            (int64_t)chainActive.Tip()->GetMedianTimePast()));
-    obj.push_back(Pair("verificationprogress",  Checkpoints::GuessVerificationProgress(Params().Checkpoints(), chainActive.Tip())));
+    obj.push_back(Pair("verificationprogress",  GuessVerificationProgress(Params().Checkpoints(), chainActive.Tip())));
     obj.push_back(Pair("chainwork",             chainActive.Tip()->nChainWork.GetHex()));
     obj.push_back(Pair("pruned",                fPruneMode));
 

src/validation.cpp

@@ -2080,7 +2080,7 @@ void static UpdateTip(CBlockIndex *pindexNew, const CChainParams& chainParams) {
       chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), chainActive.Tip()->nVersion,
       log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
       DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
-      Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip()), pcoinsTip->DynamicMemoryUsage() * (1.0 / (1<<20)), pcoinsTip->GetCacheSize());
+      GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip()), pcoinsTip->DynamicMemoryUsage() * (1.0 / (1<<20)), pcoinsTip->GetCacheSize());
     if (!warningMessages.empty())
         LogPrintf(" warning='%s'", boost::algorithm::join(warningMessages, ", "));
     LogPrintf("\n");
@@ -3445,7 +3445,7 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams)
     LogPrintf("%s: hashBestChain=%s height=%d date=%s progress=%f\n", __func__,
         chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(),
         DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
-        Checkpoints::GuessVerificationProgress(chainparams.Checkpoints(), chainActive.Tip()));
+        GuessVerificationProgress(chainparams.Checkpoints(), chainActive.Tip()));
 
     return true;
 }
@@ -4141,6 +4141,46 @@ void DumpMempool(void)
     }
 }
 
+/**
+ * How many times slower we expect checking transactions after the last
+ * checkpoint to be (from checking signatures, which is skipped up to the
+ * last checkpoint). This number is a compromise, as it can't be accurate
+ * for every system. When reindexing from a fast disk with a slow CPU, it
+ * can be up to 20, while when downloading from a slow network with a
+ * fast multicore CPU, it won't be much higher than 1.
+ */
+static const double SIGCHECK_VERIFICATION_FACTOR = 5.0;
+
+//! Guess how far we are in the verification process at the given block index
+double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex *pindex, bool fSigchecks) {
+    if (pindex==NULL)
+        return 0.0;
+
+    int64_t nNow = time(NULL);
+
+    double fSigcheckVerificationFactor = fSigchecks ? SIGCHECK_VERIFICATION_FACTOR : 1.0;
+    double fWorkBefore = 0.0; // Amount of work done before pindex
+    double fWorkAfter = 0.0;  // Amount of work left after pindex (estimated)
+    // Work is defined as: 1.0 per transaction before the last checkpoint, and
+    // fSigcheckVerificationFactor per transaction after.
+
+    if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) {
+        double nCheapBefore = pindex->nChainTx;
+        double nCheapAfter = data.nTransactionsLastCheckpoint - pindex->nChainTx;
+        double nExpensiveAfter = (nNow - data.nTimeLastCheckpoint)/86400.0*data.fTransactionsPerDay;
+        fWorkBefore = nCheapBefore;
+        fWorkAfter = nCheapAfter + nExpensiveAfter*fSigcheckVerificationFactor;
+    } else {
+        double nCheapBefore = data.nTransactionsLastCheckpoint;
+        double nExpensiveBefore = pindex->nChainTx - data.nTransactionsLastCheckpoint;
+        double nExpensiveAfter = (nNow - pindex->GetBlockTime())/86400.0*data.fTransactionsPerDay;
+        fWorkBefore = nCheapBefore + nExpensiveBefore*fSigcheckVerificationFactor;
+        fWorkAfter = nExpensiveAfter*fSigcheckVerificationFactor;
+    }
+
+    return fWorkBefore / (fWorkBefore + fWorkAfter);
+}
+
 class CMainCleanup
 {
 public:

src/validation.h

@@ -42,6 +42,7 @@ class CScriptCheck;
 class CTxMemPool;
 class CValidationInterface;
 class CValidationState;
+class CCheckpointData;
 
 struct PrecomputedTransactionData;
 struct LockPoints;
@@ -279,6 +280,9 @@ bool GetTransaction(const uint256 &hash, CTransactionRef &tx, const Consensus::P
 bool ActivateBestChain(CValidationState& state, const CChainParams& chainparams, std::shared_ptr<const CBlock> pblock = std::shared_ptr<const CBlock>());
 CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams);
 
+/** Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). */
+double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex* pindex, bool fSigchecks = true);
+
 /**
  * Prune block and undo files (blk???.dat and undo???.dat) so that the disk space used is less than a user-defined target.
  * The user sets the target (in MB) on the command line or in config file.  This will be run on startup and whenever new

src/wallet/wallet.cpp

@@ -1479,12 +1479,12 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
             pindex = chainActive.Next(pindex);
 
         ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
-        double dProgressStart = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex, false);
+        double dProgressStart = GuessVerificationProgress(chainParams.Checkpoints(), pindex, false);
-        double dProgressTip = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip(), false);
+        double dProgressTip = GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip(), false);
         while (pindex)
         {
             if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0)
-                ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex, false) - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
+                ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams.Checkpoints(), pindex, false) - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
 
             CBlock block;
             ReadBlockFromDisk(block, pindex, Params().GetConsensus());
@@ -1497,7 +1497,7 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
             pindex = chainActive.Next(pindex);
             if (GetTime() >= nNow + 60) {
                 nNow = GetTime();
-                LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex));
+                LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.Checkpoints(), pindex));
             }
         }
         ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI