Function getminerbyblocktime

src/rpc/rpcmining.cpp:231–302

extern Value getminerbyblocktime(const Array& params, bool fHelp) {
    if (fHelp || params.size() != 2) {
        throw runtime_error(
            "getminerbyblocktime height time\n"
            "\ncalculate the miner of block by time."
            "\nArguments:\n"
            "1. height          (numeric, required) block height,\n"
            "2. time            (numeric, required) block time,\n"
            "\nResult:\n"
            "{\n"
            "  \"miner_regid\": n        (numeric) block time\n"
            "  \"miner_addr\": n         (numeric) block height\n"
            "  \"top_idx\": n            (numeric) block nonce\n"
            "}\n"
            "\nExamples:\n" +
            HelpExampleCli("getminerbyblocktime", "100 1571039490") + "\nAs json rpc call\n" +
            HelpExampleRpc("getminerbyblocktime", "100, 1571039490"));
    }

    int64_t blockHeight = params[0].get_int64();
    int64_t blockTime   = params[1].get_int64();

    if (blockHeight <= 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("invalid blockHeight=%lld <= 0\n", blockHeight));
    }

    if (blockTime <= 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("invalid blockTime=%lld <= 0\n", blockTime));
    }

    VoteDelegateVector delegates;
    if (!pCdMan->pDelegateCache->GetActiveDelegates(delegates)) {
        LogPrint(BCLog::ERROR, "GetActiveDelegates failed\n");
        return false;
    }

    uint16_t index = 0;
    for (auto &delegate : delegates)
        LogPrint(BCLog::DEBUG, "[%d] before shuffle: index=%d, regId=%s\n", blockHeight, index++, delegate.regid.ToString());

    ShuffleDelegates(blockHeight, blockTime, delegates);

    index = 0;
    for (auto &delegate : delegates)
        LogPrint(BCLog::DEBUG, "[%d] after shuffle: index=%d, regId=%s\n", blockHeight, index++, delegate.regid.ToString());

    CRegID regid;
    VoteDelegate curDelegate;
    GetCurrentDelegate(blockTime, blockHeight, delegates, curDelegate);

    index = 0;
    for (; index < delegates.size(); index++) {
        if (delegates.at(index).regid == curDelegate.regid) {
            break;
        }
    }
    if (index >= delegates.size())
        throw JSONRPCError(RPC_INVALID_PARAMETER, "find current delegate failed!\n");