Function AcceptBlockHeader

src/main.cpp:3485–3527

}

bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex** ppindex)
{
    const CChainParams& chainparams = Params();
    AssertLockHeld(cs_main);
    // Check for duplicate
    uint256 hash = block.GetHash();
    BlockMap::iterator miSelf = mapBlockIndex.find(hash);
    CBlockIndex *pindex = NULL;
    if (miSelf != mapBlockIndex.end()) {
        // Block header is already known.
        pindex = miSelf->second;
        if (ppindex)
            *ppindex = pindex;
        if (pindex->nStatus & BLOCK_FAILED_MASK)
            return state.Invalid(error("%s: block is marked invalid", __func__), 0, "duplicate");
        return true;
    }

    if (!CheckBlockHeader(block, state))
        return false;

    // Get prev block index
    CBlockIndex* pindexPrev = NULL;
    if (hash != chainparams.GetConsensus().hashGenesisBlock) {
        BlockMap::iterator mi = mapBlockIndex.find(block.hashPrevBlock);
        if (mi == mapBlockIndex.end())
            return state.DoS(10, error("%s: prev block not found", __func__), 0, "bad-prevblk");
        pindexPrev = (*mi).second;
        if (pindexPrev->nStatus & BLOCK_FAILED_MASK)
            return state.DoS(100, error("%s: prev block invalid", __func__), REJECT_INVALID, "bad-prevblk");
    }

    if (!ContextualCheckBlockHeader(block, state, pindexPrev))
        return false;

    if (pindex == NULL)
        pindex = AddToBlockIndex(block);

    if (ppindex)
        *ppindex = pindex;

    return true;
}

bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex, bool fRequested, const CDiskBlockPos* dbp)
{