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Add AllowMinDifficultyBlocks chain parameter

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This commit is contained in:
jtimon 2014-03-22 20:09:12 +01:00
parent d754f34e8d
commit 21913a9ac9
4 changed files with 8 additions and 4 deletions
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2
src/chainparams.cpp
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@ -224,6 +224,8 @@ public:
base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF); base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94); base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);
} }
virtual bool AllowMinDifficultyBlocks() const { return true; }
virtual Network NetworkID() const { return CChainParams::TESTNET; } virtual Network NetworkID() const { return CChainParams::TESTNET; }
}; };
static CTestNetParams testNetParams; static CTestNetParams testNetParams;

2
src/chainparams.h
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@ -70,6 +70,8 @@ public:
virtual bool MiningRequiresPeers() const { return true; } virtual bool MiningRequiresPeers() const { return true; }
/* Default value for -checkmempool argument */ /* Default value for -checkmempool argument */
virtual bool DefaultCheckMemPool() const { return false; } virtual bool DefaultCheckMemPool() const { return false; }
/* Allow mining of a min-difficulty block */
virtual bool AllowMinDifficultyBlocks() const { return false; }
const string& DataDir() const { return strDataDir; } const string& DataDir() const { return strDataDir; }
/* Make miner stop after a block is found. In RPC, don't return /* Make miner stop after a block is found. In RPC, don't return
* until nGenProcLimit blocks are generated */ * until nGenProcLimit blocks are generated */

6
src/main.cpp
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@ -1210,7 +1210,7 @@ unsigned int ComputeMinWork(unsigned int nBase, int64_t nTime)
const uint256 &bnLimit = Params().ProofOfWorkLimit(); const uint256 &bnLimit = Params().ProofOfWorkLimit();
// Testnet has min-difficulty blocks // Testnet has min-difficulty blocks
// after nTargetSpacing*2 time between blocks: // after nTargetSpacing*2 time between blocks:
if (TestNet() && nTime > nTargetSpacing*2) if (Params().AllowMinDifficultyBlocks() && nTime > nTargetSpacing*2)
return bnLimit.GetCompact(); return bnLimit.GetCompact();
uint256 bnResult; uint256 bnResult;
@ -1238,7 +1238,7 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
// Only change once per interval // Only change once per interval
if ((pindexLast->nHeight+1) % nInterval != 0) if ((pindexLast->nHeight+1) % nInterval != 0)
{ {
if (TestNet()) if (Params().AllowMinDifficultyBlocks())
{ {
// Special difficulty rule for testnet: // Special difficulty rule for testnet:
// If the new block's timestamp is more than 2* 10 minutes // If the new block's timestamp is more than 2* 10 minutes
@ -1468,7 +1468,7 @@ void UpdateTime(CBlockHeader& block, const CBlockIndex* pindexPrev)
block.nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); block.nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
// Updating time can change work required on testnet: // Updating time can change work required on testnet:
if (TestNet()) if (Params().AllowMinDifficultyBlocks())
block.nBits = GetNextWorkRequired(pindexPrev, &block); block.nBits = GetNextWorkRequired(pindexPrev, &block);
} }

2
src/miner.cpp
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@ -632,7 +632,7 @@ void static BitcoinMiner(CWallet *pwallet)
// Update nTime every few seconds // Update nTime every few seconds
UpdateTime(*pblock, pindexPrev); UpdateTime(*pblock, pindexPrev);
nBlockTime = ByteReverse(pblock->nTime); nBlockTime = ByteReverse(pblock->nTime);
if (TestNet()) if (Params().AllowMinDifficultyBlocks())
{ {
// Changing pblock->nTime can change work required on testnet: // Changing pblock->nTime can change work required on testnet:
nBlockBits = ByteReverse(pblock->nBits); nBlockBits = ByteReverse(pblock->nBits);