Chainparams: Explicit CChainParams arg for main (pre miner):

-ProcessNewBlock
-TestBlockValidity

src/main.cpp

@@ -2915,9 +2915,8 @@ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned
 }
 
 
-bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp)
+bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos* dbp)
 {
-    const CChainParams& chainparams = Params();
     // Preliminary checks
     bool checked = CheckBlock(*pblock, state);
 
@@ -2946,9 +2945,8 @@ bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock*
     return true;
 }
 
-bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex * const pindexPrev, bool fCheckPOW, bool fCheckMerkleRoot)
+bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams, const CBlock& block, CBlockIndex* pindexPrev, bool fCheckPOW, bool fCheckMerkleRoot)
 {
-    const CChainParams& chainparams = Params();
     AssertLockHeld(cs_main);
     assert(pindexPrev && pindexPrev == chainActive.Tip());
     if (fCheckpointsEnabled && !CheckIndexAgainstCheckpoint(pindexPrev, state, chainparams, block.GetHash()))
@@ -3488,7 +3486,7 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                 // process in case the block isn't known yet
                 if (mapBlockIndex.count(hash) == 0 || (mapBlockIndex[hash]->nStatus & BLOCK_HAVE_DATA) == 0) {
                     CValidationState state;
-                    if (ProcessNewBlock(state, NULL, &block, true, dbp))
+                    if (ProcessNewBlock(state, chainparams, NULL, &block, true, dbp))
                         nLoaded++;
                     if (state.IsError())
                         break;
@@ -3510,7 +3508,7 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                             LogPrintf("%s: Processing out of order child %s of %s\n", __func__, block.GetHash().ToString(),
                                     head.ToString());
                             CValidationState dummy;
-                            if (ProcessNewBlock(dummy, NULL, &block, true, &it->second))
+                            if (ProcessNewBlock(dummy, chainparams, NULL, &block, true, &it->second))
                             {
                                 nLoaded++;
                                 queue.push_back(block.GetHash());
@@ -4547,7 +4545,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         // Such an unrequested block may still be processed, subject to the
         // conditions in AcceptBlock().
         bool forceProcessing = pfrom->fWhitelisted && !IsInitialBlockDownload();
-        ProcessNewBlock(state, pfrom, &block, forceProcessing, NULL);
+        ProcessNewBlock(state, chainparams, pfrom, &block, forceProcessing, NULL);
         int nDoS;
         if (state.IsInvalid(nDoS)) {
             assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes

src/main.h

@@ -31,6 +31,7 @@
 class CBlockIndex;
 class CBlockTreeDB;
 class CBloomFilter;
+class CChainParams;
 class CInv;
 class CScriptCheck;
 class CTxMemPool;
@@ -159,7 +160,7 @@ void UnregisterNodeSignals(CNodeSignals& nodeSignals);
  * @param[out]  dbp     If pblock is stored to disk (or already there), this will be set to its location.
  * @return True if state.IsValid()
  */
-bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp);
+bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos* dbp);
 /** Check whether enough disk space is available for an incoming block */
 bool CheckDiskSpace(uint64_t nAdditionalBytes = 0);
 /** Open a block file (blk?????.dat) */
@@ -378,7 +379,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
 bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIndex *pindexPrev);
 
 /** Check a block is completely valid from start to finish (only works on top of our current best block, with cs_main held) */
-bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex *pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true);
+bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams, const CBlock& block, CBlockIndex* pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true);
 
 /** Store block on disk. If dbp is non-NULL, the file is known to already reside on disk */
 bool AcceptBlock(const CBlock& block, CValidationState& state, CBlockIndex **pindex, bool fRequested, CDiskBlockPos* dbp);

src/miner.cpp

@@ -351,7 +351,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
         pblocktemplate->vTxSigOps[0] = GetLegacySigOpCount(pblock->vtx[0]);
 
         CValidationState state;
-        if (!TestBlockValidity(state, *pblock, pindexPrev, false, false))
+        if (!TestBlockValidity(state, chainparams, *pblock, pindexPrev, false, false))
             throw std::runtime_error("CreateNewBlock(): TestBlockValidity failed");
     }
 
@@ -432,7 +432,7 @@ static bool ProcessBlockFound(const CBlock* pblock, const CChainParams& chainpar
 
     // Process this block the same as if we had received it from another node
     CValidationState state;
-    if (!ProcessNewBlock(state, NULL, pblock, true, NULL))
+    if (!ProcessNewBlock(state, chainparams, NULL, pblock, true, NULL))
         return error("BitcoinMiner: ProcessNewBlock, block not accepted");
 
     return true;

src/rpcmining.cpp

@@ -171,7 +171,7 @@ UniValue generate(const UniValue& params, bool fHelp)
             ++pblock->nNonce;
         }
         CValidationState state;
-        if (!ProcessNewBlock(state, NULL, pblock, true, NULL))
+        if (!ProcessNewBlock(state, Params(), NULL, pblock, true, NULL))
             throw JSONRPCError(RPC_INTERNAL_ERROR, "ProcessNewBlock, block not accepted");
         ++nHeight;
         blockHashes.push_back(pblock->GetHash().GetHex());
@@ -426,7 +426,7 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp)
             if (block.hashPrevBlock != pindexPrev->GetBlockHash())
                 return "inconclusive-not-best-prevblk";
             CValidationState state;
-            TestBlockValidity(state, block, pindexPrev, false, true);
+            TestBlockValidity(state, Params(), block, pindexPrev, false, true);
             return BIP22ValidationResult(state);
         }
     }
@@ -652,7 +652,7 @@ UniValue submitblock(const UniValue& params, bool fHelp)
     CValidationState state;
     submitblock_StateCatcher sc(block.GetHash());
     RegisterValidationInterface(&sc);
-    bool fAccepted = ProcessNewBlock(state, NULL, &block, true, NULL);
+    bool fAccepted = ProcessNewBlock(state, Params(), NULL, &block, true, NULL);
     UnregisterValidationInterface(&sc);
     if (fBlockPresent)
     {

src/test/miner_tests.cpp

@@ -59,6 +59,7 @@ struct {
 // NOTE: These tests rely on CreateNewBlock doing its own self-validation!
 BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
 {
+    const CChainParams& chainparams = Params(CBaseChainParams::MAIN);
     CScript scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
     CBlockTemplate *pblocktemplate;
     CMutableTransaction tx,tx2;
@@ -91,7 +92,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
         pblock->hashMerkleRoot = pblock->ComputeMerkleRoot();
         pblock->nNonce = blockinfo[i].nonce;
         CValidationState state;
-        BOOST_CHECK(ProcessNewBlock(state, NULL, pblock, true, NULL));
+        BOOST_CHECK(ProcessNewBlock(state, chainparams, NULL, pblock, true, NULL));
         BOOST_CHECK(state.IsValid());
         pblock->hashPrevBlock = pblock->GetHash();
     }

src/test/test_bitcoin.cpp

@@ -114,6 +114,7 @@ TestChain100Setup::TestChain100Setup() : TestingSetup(CBaseChainParams::REGTEST)
 CBlock
 TestChain100Setup::CreateAndProcessBlock(const std::vector<CMutableTransaction>& txns, const CScript& scriptPubKey)
 {
+    const CChainParams& chainparams = Params();
     CBlockTemplate *pblocktemplate = CreateNewBlock(scriptPubKey);
     CBlock& block = pblocktemplate->block;
 
@@ -125,10 +126,10 @@ TestChain100Setup::CreateAndProcessBlock(const std::vector<CMutableTransaction>&
     unsigned int extraNonce = 0;
     IncrementExtraNonce(&block, chainActive.Tip(), extraNonce);
 
-    while (!CheckProofOfWork(block.GetHash(), block.nBits, Params(CBaseChainParams::REGTEST).GetConsensus())) ++block.nNonce;
+    while (!CheckProofOfWork(block.GetHash(), block.nBits, chainparams.GetConsensus())) ++block.nNonce;
 
     CValidationState state;
-    ProcessNewBlock(state, NULL, &block, true, NULL);
+    ProcessNewBlock(state, chainparams, NULL, &block, true, NULL);
 
     CBlock result = block;
     delete pblocktemplate;