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| author | Pieter Wuille <pieter.wuille@gmail.com> | 2013-03-28 23:51:50 +0100 |
|---|---|---|
| committer | Pieter Wuille <pieterw@google.com> | 2013-04-12 12:17:28 +0200 |
| commit | 1657c4bc495815febc2137972c3c63b99d2b0189 (patch) | |
| tree | 57798b51f7014c88f11b1e5bfe11edc123977098 /src/main.h | |
| parent | 2aa462ec30c3960ae546e4d8d50fdbaffefef718 (diff) | |
| download | bitcoin-1657c4bc495815febc2137972c3c63b99d2b0189.tar.xz | |
Use a uint256 for bnChainWork
Every block index entry currently requires a separately-allocated
CBigNum. By replacing them with uint256, it's just 32 bytes extra
in CBlockIndex itself.
This should save us a few megabytes in RAM, and less allocation
overhead.
Diffstat (limited to 'src/main.h')
| -rw-r--r-- | src/main.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/main.h b/src/main.h index 9a3664a437..24b2cb2aa6 100644 --- a/src/main.h +++ b/src/main.h @@ -77,8 +77,8 @@ extern std::set<CBlockIndex*, CBlockIndexWorkComparator> setBlockIndexValid; extern uint256 hashGenesisBlock; extern CBlockIndex* pindexGenesisBlock; extern int nBestHeight; -extern CBigNum bnBestChainWork; -extern CBigNum bnBestInvalidWork; +extern uint256 nBestChainWork; +extern uint256 nBestInvalidWork; extern uint256 hashBestChain; extern CBlockIndex* pindexBest; extern unsigned int nTransactionsUpdated; @@ -1619,7 +1619,7 @@ public: unsigned int nUndoPos; // (memory only) Total amount of work (expected number of hashes) in the chain up to and including this block - CBigNum bnChainWork; + uint256 nChainWork; // Number of transactions in this block. // Note: in a potential headers-first mode, this number cannot be relied upon @@ -1648,7 +1648,7 @@ public: nFile = 0; nDataPos = 0; nUndoPos = 0; - bnChainWork = 0; + nChainWork = 0; nTx = 0; nChainTx = 0; nStatus = 0; @@ -1669,7 +1669,7 @@ public: nFile = 0; nDataPos = 0; nUndoPos = 0; - bnChainWork = 0; + nChainWork = 0; nTx = 0; nChainTx = 0; nStatus = 0; @@ -1793,8 +1793,8 @@ public: struct CBlockIndexWorkComparator { bool operator()(CBlockIndex *pa, CBlockIndex *pb) { - if (pa->bnChainWork > pb->bnChainWork) return false; - if (pa->bnChainWork < pb->bnChainWork) return true; + if (pa->nChainWork > pb->nChainWork) return false; + if (pa->nChainWork < pb->nChainWork) return true; if (pa->GetBlockHash() < pb->GetBlockHash()) return false; if (pa->GetBlockHash() > pb->GetBlockHash()) return true; |