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Rename min-difficulty flag to remove off-by-one in the name

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This commit is contained in:
Jack Grigg
2018-10-04 23:26:05 +01:00
parent b86dc98047
commit 1f7ee4af70
4 changed files with 10 additions and 8 deletions
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6
src/chainparams.cpp
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@@ -95,7 +95,7 @@ public:
consensus.nPowMaxAdjustDown = 32; // 32% adjustment down consensus.nPowMaxAdjustDown = 32; // 32% adjustment down
consensus.nPowMaxAdjustUp = 16; // 16% adjustment up consensus.nPowMaxAdjustUp = 16; // 16% adjustment up
consensus.nPowTargetSpacing = 2.5 * 60; consensus.nPowTargetSpacing = 2.5 * 60;
consensus.nPowAllowMinDifficultyBlocksFromHeight = boost::none; consensus.nPowAllowMinDifficultyBlocksAfterHeight = boost::none;
consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002; consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002;
consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight = consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight =
Consensus::NetworkUpgrade::ALWAYS_ACTIVE; Consensus::NetworkUpgrade::ALWAYS_ACTIVE;
@@ -272,7 +272,7 @@ public:
consensus.nPowMaxAdjustDown = 32; // 32% adjustment down consensus.nPowMaxAdjustDown = 32; // 32% adjustment down
consensus.nPowMaxAdjustUp = 16; // 16% adjustment up consensus.nPowMaxAdjustUp = 16; // 16% adjustment up
consensus.nPowTargetSpacing = 2.5 * 60; consensus.nPowTargetSpacing = 2.5 * 60;
consensus.nPowAllowMinDifficultyBlocksFromHeight = 299187; consensus.nPowAllowMinDifficultyBlocksAfterHeight = 299187;
consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002; consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002;
consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight = consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight =
Consensus::NetworkUpgrade::ALWAYS_ACTIVE; Consensus::NetworkUpgrade::ALWAYS_ACTIVE;
@@ -393,7 +393,7 @@ public:
consensus.nPowMaxAdjustDown = 0; // Turn off adjustment down consensus.nPowMaxAdjustDown = 0; // Turn off adjustment down
consensus.nPowMaxAdjustUp = 0; // Turn off adjustment up consensus.nPowMaxAdjustUp = 0; // Turn off adjustment up
consensus.nPowTargetSpacing = 2.5 * 60; consensus.nPowTargetSpacing = 2.5 * 60;
consensus.nPowAllowMinDifficultyBlocksFromHeight = 0; consensus.nPowAllowMinDifficultyBlocksAfterHeight = 0;
consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002; consensus.vUpgrades[Consensus::BASE_SPROUT].nProtocolVersion = 170002;
consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight = consensus.vUpgrades[Consensus::BASE_SPROUT].nActivationHeight =
Consensus::NetworkUpgrade::ALWAYS_ACTIVE; Consensus::NetworkUpgrade::ALWAYS_ACTIVE;

2
src/consensus/params.h
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@@ -93,7 +93,7 @@ struct Params {
NetworkUpgrade vUpgrades[MAX_NETWORK_UPGRADES]; NetworkUpgrade vUpgrades[MAX_NETWORK_UPGRADES];
/** Proof of work parameters */ /** Proof of work parameters */
uint256 powLimit; uint256 powLimit;
boost::optional<uint32_t> nPowAllowMinDifficultyBlocksFromHeight; boost::optional<uint32_t> nPowAllowMinDifficultyBlocksAfterHeight;
int64_t nPowAveragingWindow; int64_t nPowAveragingWindow;
int64_t nPowMaxAdjustDown; int64_t nPowMaxAdjustDown;
int64_t nPowMaxAdjustUp; int64_t nPowMaxAdjustUp;

4
src/miner.cpp
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@@ -103,7 +103,7 @@ void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams,
pblock->nTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); pblock->nTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
// Updating time can change work required on testnet: // Updating time can change work required on testnet:
if (consensusParams.nPowAllowMinDifficultyBlocksFromHeight) { if (consensusParams.nPowAllowMinDifficultyBlocksAfterHeight) {
pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams); pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams);
} }
} }
@@ -727,7 +727,7 @@ void static BitcoinMiner()
// Update nNonce and nTime // Update nNonce and nTime
pblock->nNonce = ArithToUint256(UintToArith256(pblock->nNonce) + 1); pblock->nNonce = ArithToUint256(UintToArith256(pblock->nNonce) + 1);
UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev); UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
if (chainparams.GetConsensus().nPowAllowMinDifficultyBlocksFromHeight) if (chainparams.GetConsensus().nPowAllowMinDifficultyBlocksAfterHeight)
{ {
// Changing pblock->nTime can change work required on testnet: // Changing pblock->nTime can change work required on testnet:
hashTarget.SetCompact(pblock->nBits); hashTarget.SetCompact(pblock->nBits);

6
src/pow.cpp
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@@ -25,8 +25,10 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
return nProofOfWorkLimit; return nProofOfWorkLimit;
{ {
if (params.nPowAllowMinDifficultyBlocksFromHeight && // Comparing to pindexLast->nHeight with >= because this function
pindexLast->nHeight >= params.nPowAllowMinDifficultyBlocksFromHeight.get()) // returns the work required for the block after pindexLast.
if (params.nPowAllowMinDifficultyBlocksAfterHeight &&
pindexLast->nHeight >= params.nPowAllowMinDifficultyBlocksAfterHeight.get())
{ {
// Special difficulty rule for testnet: // Special difficulty rule for testnet:
// If the new block's timestamp is more than 6 * 2.5 minutes // If the new block's timestamp is more than 6 * 2.5 minutes