Can we get a list of peer IP's that are known to be on the right time?
You can set your computer to the right time, but it doesn't mean your peers are when you try and send them a newly mined
block, so you may still get an orphan even though you are on the correct time, just because your peers are not.
In util.cpp on line 1161 change
void SetMockTime(int64 nMockTimeIn)
{
nMockTime = nMockTimeIn;
}
static int64 nTimeOffset = 0;
int64 GetAdjustedTime()
{
return GetTime() + nTimeOffset;
}
void AddTimeData(const CNetAddr& ip, int64 nTime)
{
int64 nOffsetSample = nTime - GetTime();
// Ignore duplicates
static set setKnown;
if (!setKnown.insert(ip).second)
return;
// Add data
vTimeOffsets.input(nOffsetSample);
printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
{
int64 nMedian = vTimeOffsets.median();
std::vector vSorted = vTimeOffsets.sorted();
// Only let other nodes change our time by so much
if (abs64(nMedian) < 35 * 60) // GoldCoin (GLD): changed maximum adjust to 35 mins to avoid letting peers change our time too much in case of an attack.
{
nTimeOffset = nMedian;
}
else
{
nTimeOffset = 0;
static bool fDone;
if (!fDone)
{
// If nobody has a time different than ours but within 5 minutes of ours, give a warning
bool fMatch = false;
BOOST_FOREACH(int64 nOffset, vSorted)
if (nOffset != 0 && abs64(nOffset) < 5 * 60)
fMatch = true;
if (!fMatch)
{
fDone = true;
string strMessage = _("Warning: Please check that your computer's date and time are correct. If your clock is wrong GoldCoin (GLD) will not work properly.");
strMiscWarning = strMessage;
printf("*** %s\n", strMessage.c_str());
uiInterface.ThreadSafeMessageBox(strMessage+" ", string("GoldCoin (GLD)"), CClientUIInterface::OK | CClientUIInterface::ICON_EXCLAMATION);
}
}
}
if (fDebug) {
BOOST_FOREACH(int64 n, vSorted)
printf("%+"PRI64d" ", n);
printf("| ");
}
printf("nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
}
}
To
void SetMockTime(int64 nMockTimeIn)
{
nMockTime = nMockTimeIn;
}
static int64 nTimeOffset = 0;
int64 GetAdjustedTime()
{
return GetTime() + nTimeOffset;
}
void AddTimeData(const CNetAddr& ip, int64 nTime)
{
int64 nOffsetSample = nTime - GetTime();
// Ignore duplicates
static set setKnown;
if (!setKnown.insert(ip).second)
return;
// Add data
vTimeOffsets.input(nOffsetSample);
printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
{
int64 nMedian = vTimeOffsets.median();
std::vector vSorted = vTimeOffsets.sorted();
// Only let other nodes change our time by so much
if (abs64(nMedian) < 35 * 60) // GoldCoin (GLD): changed maximum adjust to 35 mins to avoid letting peers change our time too much in case of an attack.
{
nTimeOffset = nMedian;
}
else
{
nTimeOffset = 0;
static bool fDone;
if (!fDone)
{
// If nobody has a time different than ours but within 10 seconds of ours, give a warning
bool fMatch = false;
BOOST_FOREACH(int64 nOffset, vSorted)
if (nOffset != 0 && abs64(nOffset) < 10)
fMatch = true;
if (!fMatch)
{
fDone = true;
string strMessage = _("Warning: Please check that your computer's date and time are correct. If your clock is wrong GoldCoin (GLD) will not work properly.");
strMiscWarning = strMessage;
printf("*** %s\n", strMessage.c_str());
uiInterface.ThreadSafeMessageBox(strMessage+" ", string("GoldCoin (GLD)"), CClientUIInterface::OK | CClientUIInterface::ICON_EXCLAMATION);
}
}
}
if (fDebug) {
BOOST_FOREACH(int64 n, vSorted)
printf("%+"PRI64d" ", n);
printf("| ");
}
printf("nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
}
}
And recompile
This will warn you that your clock is off by too much in the debug file.
Alternatively you could try syncing with nist automatic time servers.
There is a small tutorial on how to do that here:
https://www.gldtalk.org/index.php?topic=730.msg3863#msg3863
