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Merge pull request #673 from mndrix/less-time-data

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Store fewer time samples
This commit is contained in:
Gavin Andresen 2011-12-20 08:55:55 -08:00
commit 387c8e3c5b
2 changed files with 22 additions and 12 deletions
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24
src/util.cpp
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@ -31,7 +31,7 @@ string strMiscWarning;
bool fTestNet = false; bool fTestNet = false;
bool fNoListen = false; bool fNoListen = false;
bool fLogTimestamps = false; bool fLogTimestamps = false;
CMedianFilter<int64> vTimeOffsets(200,0);
@ -941,15 +941,12 @@ void AddTimeData(unsigned int ip, int64 nTime)
return; return;
// Add data // Add data
static vector<int64> vTimeOffsets; vTimeOffsets.input(nOffsetSample);
if (vTimeOffsets.empty()) printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
vTimeOffsets.push_back(0);
vTimeOffsets.push_back(nOffsetSample);
printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), vTimeOffsets.back(), vTimeOffsets.back()/60);
if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1) if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
{ {
sort(vTimeOffsets.begin(), vTimeOffsets.end()); int64 nMedian = vTimeOffsets.median();
int64 nMedian = vTimeOffsets[vTimeOffsets.size()/2]; std::vector<int64> vSorted = vTimeOffsets.sorted();
// Only let other nodes change our time by so much // Only let other nodes change our time by so much
if (abs64(nMedian) < 70 * 60) if (abs64(nMedian) < 70 * 60)
{ {
@ -964,7 +961,7 @@ void AddTimeData(unsigned int ip, int64 nTime)
{ {
// If nobody has a time different than ours but within 5 minutes of ours, give a warning // If nobody has a time different than ours but within 5 minutes of ours, give a warning
bool fMatch = false; bool fMatch = false;
BOOST_FOREACH(int64 nOffset, vTimeOffsets) BOOST_FOREACH(int64 nOffset, vSorted)
if (nOffset != 0 && abs64(nOffset) < 5 * 60) if (nOffset != 0 && abs64(nOffset) < 5 * 60)
fMatch = true; fMatch = true;
@ -978,9 +975,12 @@ void AddTimeData(unsigned int ip, int64 nTime)
} }
} }
} }
BOOST_FOREACH(int64 n, vTimeOffsets) if (fDebug) {
printf("%+"PRI64d" ", n); BOOST_FOREACH(int64 n, vSorted)
printf("| nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60); printf("%+"PRI64d" ", n);
printf("| ");
}
printf("nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
} }
} }

10
src/util.h
View File

@ -598,6 +598,16 @@ public:
return (vSorted[size/2-1] + vSorted[size/2]) / 2; return (vSorted[size/2-1] + vSorted[size/2]) / 2;
} }
} }
int size() const
{
return vValues.size();
}
std::vector<T> sorted () const
{
return vSorted;
}
}; };