1 files changed, 35 insertions, 29 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 9212b309da..cd932b5d3a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -92,7 +92,7 @@ void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
  * in the last Consensus::Params::nMajorityWindow blocks, starting at pstart and going backwards.
  */
 static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams);
-static void CheckBlockIndex();
+static void CheckBlockIndex(const Consensus::Params& consensusParams);
 
 /** Constant stuff for coinbase transactions we create: */
 CScript COINBASE_FLAGS;
@@ -998,7 +998,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
 }
 
 /** Return transaction in tx, and if it was found inside a block, its hash is placed in hashBlock */
-bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock, bool fAllowSlow)
+bool GetTransaction(const uint256 &hash, CTransaction &txOut, const Consensus::Params& consensusParams, uint256 &hashBlock, bool fAllowSlow)
 {
     CBlockIndex *pindexSlow = NULL;
 
@@ -1044,7 +1044,7 @@ bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock
 
     if (pindexSlow) {
         CBlock block;
-        if (ReadBlockFromDisk(block, pindexSlow)) {
+        if (ReadBlockFromDisk(block, pindexSlow, consensusParams)) {
             BOOST_FOREACH(const CTransaction &tx, block.vtx) {
                 if (tx.GetHash() == hash) {
                     txOut = tx;
@@ -1089,7 +1089,7 @@ bool WriteBlockToDisk(const CBlock& block, CDiskBlockPos& pos, const CMessageHea
     return true;
 }
 
-bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos)
+bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos, const Consensus::Params& consensusParams)
 {
     block.SetNull();
 
@@ -1107,15 +1107,15 @@ bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos)
     }
 
     // Check the header
-    if (!CheckProofOfWork(block.GetHash(), block.nBits, Params().GetConsensus()))
+    if (!CheckProofOfWork(block.GetHash(), block.nBits, consensusParams))
         return error("ReadBlockFromDisk: Errors in block header at %s", pos.ToString());
 
     return true;
 }
 
-bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex)
+bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex, const Consensus::Params& consensusParams)
 {
-    if (!ReadBlockFromDisk(block, pindex->GetBlockPos()))
+    if (!ReadBlockFromDisk(block, pindex->GetBlockPos(), consensusParams))
         return false;
     if (block.GetHash() != pindex->GetBlockHash())
         return error("ReadBlockFromDisk(CBlock&, CBlockIndex*): GetHash() doesn't match index for %s at %s",
@@ -2064,13 +2064,14 @@ void static UpdateTip(CBlockIndex *pindexNew) {
 }
 
 /** Disconnect chainActive's tip. You want to manually re-limit mempool size after this */
-bool static DisconnectTip(CValidationState &state) {
+bool static DisconnectTip(CValidationState& state, const Consensus::Params& consensusParams)
+{
     CBlockIndex *pindexDelete = chainActive.Tip();
     assert(pindexDelete);
     mempool.check(pcoinsTip);
     // Read block from disk.
     CBlock block;
-    if (!ReadBlockFromDisk(block, pindexDelete))
+    if (!ReadBlockFromDisk(block, pindexDelete, consensusParams))
         return AbortNode(state, "Failed to read block");
     // Apply the block atomically to the chain state.
     int64_t nStart = GetTimeMicros();
@@ -2125,13 +2126,14 @@ static int64_t nTimePostConnect = 0;
  * corresponding to pindexNew, to bypass loading it again from disk.
  */
 bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew, const CBlock *pblock) {
+    const CChainParams& chainparams = Params();
     assert(pindexNew->pprev == chainActive.Tip());
     mempool.check(pcoinsTip);
     // Read block from disk.
     int64_t nTime1 = GetTimeMicros();
     CBlock block;
     if (!pblock) {
-        if (!ReadBlockFromDisk(block, pindexNew))
+        if (!ReadBlockFromDisk(block, pindexNew, chainparams.GetConsensus()))
             return AbortNode(state, "Failed to read block");
         pblock = █
     }
@@ -2257,6 +2259,7 @@ static void PruneBlockIndexCandidates() {
  * pblock is either NULL or a pointer to a CBlock corresponding to pindexMostWork.
  */
 static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMostWork, const CBlock *pblock) {
+    const CChainParams& chainparams = Params();
     AssertLockHeld(cs_main);
     bool fInvalidFound = false;
     const CBlockIndex *pindexOldTip = chainActive.Tip();
@@ -2265,7 +2268,7 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo
     // Disconnect active blocks which are no longer in the best chain.
     bool fBlocksDisconnected = false;
     while (chainActive.Tip() && chainActive.Tip() != pindexFork) {
-        if (!DisconnectTip(state))
+        if (!DisconnectTip(state, chainparams.GetConsensus()))
             return false;
         fBlocksDisconnected = true;
     }
@@ -2333,7 +2336,7 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo
 bool ActivateBestChain(CValidationState &state, const CBlock *pblock) {
     CBlockIndex *pindexNewTip = NULL;
     CBlockIndex *pindexMostWork = NULL;
-    const CChainParams& chainParams = Params();
+    const CChainParams& chainparams = Params();
     do {
         boost::this_thread::interruption_point();
 
@@ -2360,7 +2363,7 @@ bool ActivateBestChain(CValidationState &state, const CBlock *pblock) {
             // Relay inventory, but don't relay old inventory during initial block download.
             int nBlockEstimate = 0;
             if (fCheckpointsEnabled)
-                nBlockEstimate = Checkpoints::GetTotalBlocksEstimate(chainParams.Checkpoints());
+                nBlockEstimate = Checkpoints::GetTotalBlocksEstimate(chainparams.Checkpoints());
             {
                 LOCK(cs_vNodes);
                 BOOST_FOREACH(CNode* pnode, vNodes)
@@ -2372,7 +2375,7 @@ bool ActivateBestChain(CValidationState &state, const CBlock *pblock) {
             uiInterface.NotifyBlockTip(hashNewTip);
         }
     } while(pindexMostWork != chainActive.Tip());
-    CheckBlockIndex();
+    CheckBlockIndex(chainparams.GetConsensus());
 
     // Write changes periodically to disk, after relay.
     if (!FlushStateToDisk(state, FLUSH_STATE_PERIODIC)) {
@@ -2382,7 +2385,8 @@ bool ActivateBestChain(CValidationState &state, const CBlock *pblock) {
     return true;
 }
 
-bool InvalidateBlock(CValidationState& state, CBlockIndex *pindex) {
+bool InvalidateBlock(CValidationState& state, const Consensus::Params& consensusParams, CBlockIndex *pindex)
+{
     AssertLockHeld(cs_main);
 
     // Mark the block itself as invalid.
@@ -2397,7 +2401,7 @@ bool InvalidateBlock(CValidationState& state, CBlockIndex *pindex) {
         setBlockIndexCandidates.erase(pindexWalk);
         // ActivateBestChain considers blocks already in chainActive
         // unconditionally valid already, so force disconnect away from it.
-        if (!DisconnectTip(state)) {
+        if (!DisconnectTip(state, consensusParams)) {
             return false;
         }
     }
@@ -2904,6 +2908,7 @@ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned
 
 bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp)
 {
+    const CChainParams& chainparams = Params();
     // Preliminary checks
     bool checked = CheckBlock(*pblock, state);
 
@@ -2921,7 +2926,7 @@ bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock*
         if (pindex && pfrom) {
             mapBlockSource[pindex->GetBlockHash()] = pfrom->GetId();
         }
-        CheckBlockIndex();
+        CheckBlockIndex(chainparams.GetConsensus());
         if (!ret)
             return error("%s: AcceptBlock FAILED", __func__);
     }
@@ -3253,6 +3258,7 @@ CVerifyDB::~CVerifyDB()
 
 bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth)
 {
+    const CChainParams& chainparams = Params();
     LOCK(cs_main);
     if (chainActive.Tip() == NULL || chainActive.Tip()->pprev == NULL)
         return true;
@@ -3277,7 +3283,7 @@ bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth
             break;
         CBlock block;
         // check level 0: read from disk
-        if (!ReadBlockFromDisk(block, pindex))
+        if (!ReadBlockFromDisk(block, pindex, chainparams.GetConsensus()))
             return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
         // check level 1: verify block validity
         if (nCheckLevel >= 1 && !CheckBlock(block, state))
@@ -3317,7 +3323,7 @@ bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth
             uiInterface.ShowProgress(_("Verifying blocks..."), std::max(1, std::min(99, 100 - (int)(((double)(chainActive.Height() - pindex->nHeight)) / (double)nCheckDepth * 50))));
             pindex = chainActive.Next(pindex);
             CBlock block;
-            if (!ReadBlockFromDisk(block, pindex))
+            if (!ReadBlockFromDisk(block, pindex, chainparams.GetConsensus()))
                 return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
             if (!ConnectBlock(block, state, pindex, coins))
                 return error("VerifyDB(): *** found unconnectable block at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
@@ -3490,7 +3496,7 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                     std::pair<std::multimap<uint256, CDiskBlockPos>::iterator, std::multimap<uint256, CDiskBlockPos>::iterator> range = mapBlocksUnknownParent.equal_range(head);
                     while (range.first != range.second) {
                         std::multimap<uint256, CDiskBlockPos>::iterator it = range.first;
-                        if (ReadBlockFromDisk(block, it->second))
+                        if (ReadBlockFromDisk(block, it->second, chainparams.GetConsensus()))
                         {
                             LogPrintf("%s: Processing out of order child %s of %s\n", __func__, block.GetHash().ToString(),
                                     head.ToString());
@@ -3517,9 +3523,8 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
     return nLoaded > 0;
 }
 
-void static CheckBlockIndex()
+void static CheckBlockIndex(const Consensus::Params& consensusParams)
 {
-    const Consensus::Params& consensusParams = Params().GetConsensus();
     if (!fCheckBlockIndex) {
         return;
     }
@@ -3801,7 +3806,7 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
     return true;
 }
 
-void static ProcessGetData(CNode* pfrom)
+void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParams)
 {
     std::deque<CInv>::iterator it = pfrom->vRecvGetData.begin();
 
@@ -3856,7 +3861,7 @@ void static ProcessGetData(CNode* pfrom)
                 {
                     // Send block from disk
                     CBlock block;
-                    if (!ReadBlockFromDisk(block, (*mi).second))
+                    if (!ReadBlockFromDisk(block, (*mi).second, consensusParams))
                         assert(!"cannot load block from disk");
                     if (inv.type == MSG_BLOCK)
                         pfrom->PushMessage("block", block);
@@ -4248,7 +4253,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             LogPrint("net", "received getdata for: %s peer=%d\n", vInv[0].ToString(), pfrom->id);
 
         pfrom->vRecvGetData.insert(pfrom->vRecvGetData.end(), vInv.begin(), vInv.end());
-        ProcessGetData(pfrom);
+        ProcessGetData(pfrom, chainparams.GetConsensus());
     }
 
 
@@ -4514,7 +4519,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             pfrom->PushMessage("getheaders", chainActive.GetLocator(pindexLast), uint256());
         }
 
-        CheckBlockIndex();
+        CheckBlockIndex(chainparams.GetConsensus());
     }
 
     else if (strCommand == "block" && !fImporting && !fReindex) // Ignore blocks received while importing
@@ -4798,6 +4803,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
 // requires LOCK(cs_vRecvMsg)
 bool ProcessMessages(CNode* pfrom)
 {
+    const CChainParams& chainparams = Params();
     //if (fDebug)
     //    LogPrintf("%s(%u messages)\n", __func__, pfrom->vRecvMsg.size());
 
@@ -4812,7 +4818,7 @@ bool ProcessMessages(CNode* pfrom)
     bool fOk = true;
 
     if (!pfrom->vRecvGetData.empty())
-        ProcessGetData(pfrom);
+        ProcessGetData(pfrom, chainparams.GetConsensus());
 
     // this maintains the order of responses
     if (!pfrom->vRecvGetData.empty()) return fOk;
@@ -4839,7 +4845,7 @@ bool ProcessMessages(CNode* pfrom)
         it++;
 
         // Scan for message start
-        if (memcmp(msg.hdr.pchMessageStart, Params().MessageStart(), MESSAGE_START_SIZE) != 0) {
+        if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), MESSAGE_START_SIZE) != 0) {
             LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->id);
             fOk = false;
             break;
@@ -4847,7 +4853,7 @@ bool ProcessMessages(CNode* pfrom)
 
         // Read header
         CMessageHeader& hdr = msg.hdr;
-        if (!hdr.IsValid(Params().MessageStart()))
+        if (!hdr.IsValid(chainparams.MessageStart()))
         {
             LogPrintf("PROCESSMESSAGE: ERRORS IN HEADER %s peer=%d\n", SanitizeString(hdr.GetCommand()), pfrom->id);
             continue;