Function ThreadSendAlert

src/alert.cpp:278–358

}

void ThreadSendAlert()
{
    if (!mapArgs.count("-sendalert") && !mapArgs.count("-printalert"))
        return;

    // Wait one minute so we get well connected. If we only need to print
    // but not to broadcast - do this right away.
    if (mapArgs.count("-sendalert"))
        MilliSleep(60*1000);

    //
    // Alerts are relayed around the network until nRelayUntil, flood
    // filling to every node.
    // After the relay time is past, new nodes are told about alerts
    // when they connect to peers, until either nExpiration or
    // the alert is cancelled by a newer alert.
    // Nodes never save alerts to disk, they are in-memory-only.
    //
    CAlert alert;
    alert.nRelayUntil   = GetTime() + 15 * 60;
    alert.nExpiration   = GetTime() + 30 * 60 * 60;
    alert.nID           = 1;  // keep track of alert IDs somewhere
    alert.nCancel       = 0;   // cancels previous messages up to this ID number

    // These versions are protocol versions
    alert.nMinVer       = 65000;
    alert.nMaxVer       = PROTOCOL_VERSION;

    //
    //  1000 for Misc warnings like out of disk space and clock is wrong
    //  2000 for longer invalid proof-of-work chain
    //  Higher numbers mean higher priority
    alert.nPriority     = 5000;
    alert.strComment    = "";
    alert.strStatusBar  = "UPGRADE REQUIRED: https://github.com/lux-core/lux";

    // Sign
    if(!alert.Sign()){
        LogPrintf("ThreadSendAlert() : could not sign alert\n");
        return;
    }

    // Test
    CDataStream sBuffer(SER_NETWORK, CLIENT_VERSION);
    sBuffer << alert;
    CAlert alert2;
    sBuffer >> alert2;
    if (!alert2.CheckSignature(Params().AlertKey())){
        printf("ThreadSendAlert() : CheckSignature failed\n");
        return;
    }
    assert(alert2.vchMsg == alert.vchMsg);
    assert(alert2.vchSig == alert.vchSig);
    alert.SetNull();
    printf("\nThreadSendAlert:\n");
    printf("hash=%s\n", alert2.GetHash().ToString().c_str());
    printf("%s", alert2.ToString().c_str());
    printf("vchMsg=%s\n", HexStr(alert2.vchMsg).c_str());