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Refactor: GetRandHash() method for util

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This commit is contained in:
Gavin Andresen 2012-05-17 12:13:14 -04:00
parent 096e06dbb5
commit f718aedd9f
4 changed files with 12 additions and 15 deletions
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8
src/main.cpp
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@ -201,9 +201,7 @@ unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
while (mapOrphanTransactions.size() > nMaxOrphans)
{
// Evict a random orphan:
std::vector<unsigned char> randbytes(32);
RAND_bytes(&randbytes[0], 32);
uint256 randomhash(randbytes);
uint256 randomhash = GetRandHash();
map<uint256, CDataStream*>::iterator it = mapOrphanTransactions.lower_bound(randomhash);
if (it == mapOrphanTransactions.end())
it = mapOrphanTransactions.begin();
@ -2354,7 +2352,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
// at a time so the setAddrKnowns of the chosen nodes prevent repeats
static uint256 hashSalt;
if (hashSalt == 0)
RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
hashSalt = GetRandHash();
int64 hashAddr = addr.GetHash();
uint256 hashRand = hashSalt ^ (hashAddr<<32) ^ ((GetTime()+hashAddr)/(24*60*60));
hashRand = Hash(BEGIN(hashRand), END(hashRand));
@ -2945,7 +2943,7 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
// 1/4 of tx invs blast to all immediately
static uint256 hashSalt;
if (hashSalt == 0)
RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
hashSalt = GetRandHash();
uint256 hashRand = inv.hash ^ hashSalt;
hashRand = Hash(BEGIN(hashRand), END(hashRand));
bool fTrickleWait = ((hashRand & 3) != 0);