Merge pull request #5998

bebe728 Chainparams: Refactor: Remove redundant AllowMinDifficultyBlocks() getter (Jorge Timón)

src/chainparams.h

@@ -56,8 +56,6 @@ public:
     bool MiningRequiresPeers() const { return fMiningRequiresPeers; }
     /** Default value for -checkmempool and -checkblockindex argument */
     bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
-    /** Allow mining of a min-difficulty block */
-    bool AllowMinDifficultyBlocks() const { return consensus.fPowAllowMinDifficultyBlocks; }
     /** Make standard checks */
     bool RequireStandard() const { return fRequireStandard; }
     /** Make miner stop after a block is found. In RPC, don't return until nGenProcLimit blocks are generated */

src/miner.cpp

@@ -6,11 +6,12 @@
 #include "miner.h"
 
 #include "amount.h"
-#include "primitives/transaction.h"
+#include "chainparams.h"
 #include "hash.h"
 #include "main.h"
 #include "net.h"
 #include "pow.h"
+#include "primitives/transaction.h"
 #include "timedata.h"
 #include "util.h"
 #include "utilmoneystr.h"
@@ -78,13 +79,13 @@ public:
     }
 };
 
-void UpdateTime(CBlockHeader* pblock, const CBlockIndex* pindexPrev)
+void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
 {
     pblock->nTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
 
     // Updating time can change work required on testnet:
-    if (Params().AllowMinDifficultyBlocks())
+    if (consensusParams.fPowAllowMinDifficultyBlocks)
-        pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, Params().GetConsensus());
+        pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams);
 }
 
 CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
@@ -325,7 +326,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
 
         // Fill in header
         pblock->hashPrevBlock  = pindexPrev->GetBlockHash();
-        UpdateTime(pblock, pindexPrev);
+        UpdateTime(pblock, Params().GetConsensus(), pindexPrev);
         pblock->nBits          = GetNextWorkRequired(pindexPrev, pblock, Params().GetConsensus());
         pblock->nNonce         = 0;
         pblocktemplate->vTxSigOps[0] = GetLegacySigOpCount(pblock->vtx[0]);
@@ -440,6 +441,7 @@ void static BitcoinMiner(CWallet *pwallet)
     LogPrintf("BitcoinMiner started\n");
     SetThreadPriority(THREAD_PRIORITY_LOWEST);
     RenameThread("bitcoin-miner");
+    const CChainParams& chainparams = Params();
 
     // Each thread has its own key and counter
     CReserveKey reservekey(pwallet);
@@ -447,7 +449,7 @@ void static BitcoinMiner(CWallet *pwallet)
 
     try {
         while (true) {
-            if (Params().MiningRequiresPeers()) {
+            if (chainparams.MiningRequiresPeers()) {
                 // Busy-wait for the network to come online so we don't waste time mining
                 // on an obsolete chain. In regtest mode we expect to fly solo.
                 while (vNodes.empty())
@@ -496,7 +498,7 @@ void static BitcoinMiner(CWallet *pwallet)
                         SetThreadPriority(THREAD_PRIORITY_LOWEST);
 
                         // In regression test mode, stop mining after a block is found.
-                        if (Params().MineBlocksOnDemand())
+                        if (chainparams.MineBlocksOnDemand())
                             throw boost::thread_interrupted();
 
                         break;
@@ -506,7 +508,7 @@ void static BitcoinMiner(CWallet *pwallet)
                 // Check for stop or if block needs to be rebuilt
                 boost::this_thread::interruption_point();
                 // Regtest mode doesn't require peers
-                if (vNodes.empty() && Params().MiningRequiresPeers())
+                if (vNodes.empty() && chainparams.MiningRequiresPeers())
                     break;
                 if (nNonce >= 0xffff0000)
                     break;
@@ -516,8 +518,8 @@ void static BitcoinMiner(CWallet *pwallet)
                     break;
 
                 // Update nTime every few seconds
-                UpdateTime(pblock, pindexPrev);
+                UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
-                if (Params().AllowMinDifficultyBlocks())
+                if (chainparams.GetConsensus().fPowAllowMinDifficultyBlocks)
                 {
                     // Changing pblock->nTime can change work required on testnet:
                     hashTarget.SetCompact(pblock->nBits);

src/miner.h

@@ -14,6 +14,7 @@ class CBlockIndex;
 class CReserveKey;
 class CScript;
 class CWallet;
+namespace Consensus { class Params; };
 
 struct CBlockTemplate
 {
@@ -29,6 +30,6 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn);
 CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey);
 /** Modify the extranonce in a block */
 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
-void UpdateTime(CBlockHeader* block, const CBlockIndex* pindexPrev);
+void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev);
 
 #endif // BITCOIN_MINER_H

src/rpcmining.cpp

@@ -514,7 +514,7 @@ Value getblocktemplate(const Array& params, bool fHelp)
     CBlock* pblock = &pblocktemplate->block; // pointer for convenience
 
     // Update nTime
-    UpdateTime(pblock, pindexPrev);
+    UpdateTime(pblock, Params().GetConsensus(), pindexPrev);
     pblock->nNonce = 0;
 
     static const Array aCaps = boost::assign::list_of("proposal");