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Give peer time-adjustment data an own lock

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Instead of relying on cs_main (defined in a different module) to
prevent concurrent access to it.
This commit is contained in:
Pieter Wuille 2013-10-19 15:55:08 +02:00
parent 0d09b3e8b0
commit a616206865
2 changed files with 7 additions and 3 deletions
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5
src/main.cpp
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@ -49,7 +49,7 @@ int64 CTransaction::nMinTxFee = 10000; // Override with -mintxfee
/** Fees smaller than this (in satoshi) are considered zero fee (for relaying) */
int64 CTransaction::nMinRelayTxFee = 10000;
CMedianFilter<int> cPeerBlockCounts(8, 0); // Amount of blocks that other nodes claim to have
static CMedianFilter<int> cPeerBlockCounts(8, 0); // Amount of blocks that other nodes claim to have
map<uint256, CBlock*> mapOrphanBlocks;
multimap<uint256, CBlock*> mapOrphanBlocksByPrev;
@ -3460,8 +3460,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
LogPrintf("receive version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", pfrom->nVersion, pfrom->nStartingHeight, addrMe.ToString().c_str(), addrFrom.ToString().c_str(), pfrom->addr.ToString().c_str());
LOCK(cs_main);
AddTimeData(pfrom->addr, nTime);
LOCK(cs_main);
cPeerBlockCounts.input(pfrom->nStartingHeight);
}

5
src/util.cpp
View file

@ -81,7 +81,6 @@ bool fServer = false;
string strMiscWarning;
bool fNoListen = false;
bool fLogTimestamps = false;
CMedianFilter<int64> vTimeOffsets(200,0);
volatile bool fReopenDebugLog = false;
// Init OpenSSL library multithreading support
@ -1296,10 +1295,12 @@ void SetMockTime(int64 nMockTimeIn)
nMockTime = nMockTimeIn;
}
static CCriticalSection cs_nTimeOffset;
static int64 nTimeOffset = 0;
int64 GetTimeOffset()
{
LOCK(cs_nTimeOffset);
return nTimeOffset;
}
@ -1312,12 +1313,14 @@ void AddTimeData(const CNetAddr& ip, int64 nTime)
{
int64 nOffsetSample = nTime - GetTime();
LOCK(cs_nTimeOffset);
// Ignore duplicates
static set<CNetAddr> setKnown;
if (!setKnown.insert(ip).second)
return;
// Add data
static CMedianFilter<int64> vTimeOffsets(200,0);
vTimeOffsets.input(nOffsetSample);
LogPrintf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)