Function ProcessBlockAvailability

src/main.cpp:426–439

Check whether the last unknown block a peer advertized is not yet known. */

/** Check whether the last unknown block a peer advertized is not yet known. */
void ProcessBlockAvailability(NodeId nodeid)
{
    CNodeState* state = State(nodeid);
    assert(state != NULL);

    if (state->hashLastUnknownBlock != 0) {
        CBlockIndex* pindex = LookupBlockIndex(state->hashLastUnknownBlock);
        if (pindex && pindex->nChainWork > 0) {
            if (state->pindexBestKnownBlock == NULL || pindex->nChainWork >= state->pindexBestKnownBlock->nChainWork)
                state->pindexBestKnownBlock = pindex;
            state->hashLastUnknownBlock = uint256(0);
        }
    }
}

/** Update tracking information about which blocks a peer is assumed to have. */
void UpdateBlockAvailability(NodeId nodeid, const uint256& hash)