From 0f8cb5db73e8ab06b779b3cf82e26986ccc7c3f8 Mon Sep 17 00:00:00 2001 From: Gavin Andresen Date: Thu, 16 Feb 2012 10:22:31 -0500 Subject: Fix issue #848 : broken mining on testnet --- src/main.cpp | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'src/main.cpp') diff --git a/src/main.cpp b/src/main.cpp index e4c6714eae..ceeefaa058 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -922,6 +922,15 @@ void static InvalidChainFound(CBlockIndex* pindexNew) printf("InvalidChainFound: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n"); } +void CBlock::UpdateTime(const CBlockIndex* pindexPrev) +{ + nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); + + // Updating time can change work required on testnet: + if (fTestNet) + nBits = GetNextWorkRequired(pindexPrev, this); +} + @@ -3168,7 +3177,7 @@ CBlock* CreateNewBlock(CReserveKey& reservekey) // Fill in header pblock->hashPrevBlock = pindexPrev->GetBlockHash(); pblock->hashMerkleRoot = pblock->BuildMerkleTree(); - pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); + pblock->UpdateTime(pindexPrev); pblock->nBits = GetNextWorkRequired(pindexPrev, pblock.get()); pblock->nNonce = 0; @@ -3326,6 +3335,7 @@ void static BitcoinMiner(CWallet *pwallet) FormatHashBuffers(pblock.get(), pmidstate, pdata, phash1); unsigned int& nBlockTime = *(unsigned int*)(pdata + 64 + 4); + unsigned int& nBlockBits = *(unsigned int*)(pdata + 64 + 8); unsigned int& nBlockNonce = *(unsigned int*)(pdata + 64 + 12); @@ -3413,8 +3423,14 @@ void static BitcoinMiner(CWallet *pwallet) break; // Update nTime every few seconds - pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); + pblock->UpdateTime(pindexPrev); nBlockTime = ByteReverse(pblock->nTime); + if (fTestNet) + { + // Changing pblock->nTime can change work required on testnet: + nBlockBits = ByteReverse(pblock->nBits); + hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256(); + } } } } -- cgit v1.2.3