Function ThreadBlockProducing

src/miner/miner.cpp:730–853

}

void static ThreadBlockProducing(CWallet *pWallet, int32_t targetHeight) {
    LogPrint(BCLog::INFO, "started\n");

    RenameThread("coin-miner");

    auto HaveMinerKey = [&]() {
        LOCK2(cs_main, pWalletMain->cs_wallet);

        set<CKeyID> setMineKey;
        setMineKey.clear();
        pWalletMain->GetKeys(setMineKey, true);
        return !setMineKey.empty();
    };

    if (!HaveMinerKey()) {
        LogPrint(BCLog::ERROR, "terminated due to lack of miner key\n");
        return;
    }

    auto GetCurrHeight = [&]() {
        LOCK(cs_main);
        return chainActive.Height();
    };

    g_isMiningTimeLimit = SysCfg().GetBoolArg("-isminingtimelimit", true);
    targetHeight += GetCurrHeight();
    bool needSleep = false;
    int64_t nextSlotTime = 0;
    int64_t sleepSeconds = 100;

    try {
        SetMinerStatus(true);

        while (true) {
            boost::this_thread::interruption_point();

            CBlockIndex *pPrevIndex = nullptr;
            sleepSeconds = 100; // set sleep seconds default value
            if (!needSleep && (SysCfg().NetworkID() != REGTEST_NET)) {

                LOCK(cs_main);
                pPrevIndex = chainActive.Tip();

                if (vNodes.empty() || (pPrevIndex && pPrevIndex->height > 1 &&
                                       GetAdjustedTime() - pPrevIndex->nTime > 60 * 60 &&
                                       !SysCfg().GetBoolArg("-genblockforce", false))) {
                    // Busy-wait for the network to come online so we don't waste time mining
                    // on an obsolete chain. In regtest mode we expect to fly solo.
                    sleepSeconds = 1000;
                    needSleep    = true;
                }
            }

            if (needSleep) {
                MilliSleep(sleepSeconds);
                needSleep = false;
                continue;
            }