Consensus: Decouple pow.cpp from util.h

src/main.cpp

@@ -2291,8 +2291,9 @@ void static UpdateTip(CBlockIndex *pindexNew) {
     nTimeBestReceived = GetTime();
     mempool.AddTransactionsUpdated(1);
 
-    LogPrintf("%s: new best=%s  height=%d  log2_work=%.8g  tx=%lu  date=%s progress=%f  cache=%.1fMiB(%utx)\n", __func__,
+    LogPrintf("%s: new best=%s  height=%d bits=%d log2_work=%.8g  tx=%lu  date=%s progress=%f  cache=%.1fMiB(%utx)\n", __func__,
-      chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
+      chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), chainActive.Tip()->nBits,
+      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());
 

src/pow.cpp

@@ -9,7 +9,6 @@
 #include "chain.h"
 #include "primitives/block.h"
 #include "uint256.h"
-#include "util.h"
 
 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params)
 {
@@ -57,7 +56,6 @@ unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nF
 
     // Limit adjustment step
     int64_t nActualTimespan = pindexLast->GetBlockTime() - nFirstBlockTime;
-    LogPrintf("  nActualTimespan = %d  before bounds\n", nActualTimespan);
     if (nActualTimespan < params.nPowTargetTimespan/4)
         nActualTimespan = params.nPowTargetTimespan/4;
     if (nActualTimespan > params.nPowTargetTimespan*4)
@@ -75,12 +73,6 @@ unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nF
     if (bnNew > bnPowLimit)
         bnNew = bnPowLimit;
 
-    /// debug print
-    LogPrintf("GetNextWorkRequired RETARGET\n");
-    LogPrintf("params.nPowTargetTimespan = %d    nActualTimespan = %d\n", params.nPowTargetTimespan, nActualTimespan);
-    LogPrintf("Before: %08x  %s\n", pindexLast->nBits, bnOld.ToString());
-    LogPrintf("After:  %08x  %s\n", bnNew.GetCompact(), bnNew.ToString());
-
     return bnNew.GetCompact();
 }
 
@@ -94,11 +86,11 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&
 
     // Check range
     if (fNegative || bnTarget == 0 || fOverflow || bnTarget > UintToArith256(params.powLimit))
-        return error("CheckProofOfWork(): nBits below minimum work");
+        return false;
 
     // Check proof of work matches claimed amount
     if (UintToArith256(hash) > bnTarget)
-        return error("CheckProofOfWork(): hash doesn't match nBits");
+        return false;
 
     return true;
 }