bool CheckBlockStorageOrder()

blockorder.cpp

bool CheckBlockStorageOrder()
{
    AssertLockHeld(cs_main);
 
    int nHeight = 0;
    int nFilePrev = 0;
    unsigned int nPosPrev = 0;
 
    int nHeightChain = chainActive.Height();
    CBlockIndex* pindex = chainActive.Genesis();
 
    while (pindex) {
        int nFile = pindex->GetBlockPos().nFile;
        unsigned int nPos = pindex->GetBlockPos().nPos;
        nHeight = pindex->nHeight;
 
        if (nFile > nFilePrev) {
            // moving onto a new blk?????.dat
            nPosPrev = 0; 
        }
 
        if (nPos <= nPosPrev) {
            // found a blocks stored out of order
            return false; 
        }
 
        nFilePrev = nFile;
        nPosPrev = nPos;
        pindex = chainActive.Next(pindex);
    }
 
    if (nHeight < nHeightChain) {
        // blocks appear to be missing and have no successor
        return false;
    }
 
    return true;
}