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Merge branch 'totalblocksestimate1' of https://github.com/laanwj/bitcoin

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This commit is contained in:
Gavin Andresen 2011-06-24 11:17:22 -04:00
commit c774b16976
2 changed files with 17 additions and 1 deletions
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17
src/main.cpp
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@ -32,6 +32,8 @@ map<COutPoint, CInPoint> mapNextTx;
map<uint256, CBlockIndex*> mapBlockIndex;
uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
const int nTotalBlocksEstimate = 131000; // Conservative estimate of total nr of blocks on main chain
const int nInitialBlockThreshold = 10000; // Regard blocks up until N-threshold as "initial download"
CBlockIndex* pindexGenesisBlock = NULL;
int nBestHeight = -1;
CBigNum bnBestChainWork = 0;
@ -704,9 +706,22 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits)
return true;
}
// Return conservative estimate of total number of blocks, 0 if unknown
int GetTotalBlocksEstimate()
{
if(fTestNet)
{
return 0;
}
else
{
return nTotalBlocksEstimate;
}
}
bool IsInitialBlockDownload()
{
if (pindexBest == NULL || (!fTestNet && nBestHeight < 118000))
if (pindexBest == NULL || nBestHeight < (GetTotalBlocksEstimate()-nInitialBlockThreshold))
return true;
static int64 nLastUpdate;
static CBlockIndex* pindexLastBest;

1
src/main.h
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@ -98,6 +98,7 @@ void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int&
void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1);
bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey);
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
int GetTotalBlocksEstimate();
bool IsInitialBlockDownload();
std::string GetWarnings(std::string strFor);