From f35e21e2e4fcc0aa52edd9f9b58bd19e347597da Mon Sep 17 00:00:00 2001 From: s_nakamoto Date: Fri, 19 Nov 2010 23:37:05 +0000 Subject: require some minimal priority for free transactions to slow down transaction spam git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@185 1a98c847-1fd6-4fd8-948a-caf3550aa51b --- main.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'main.cpp') diff --git a/main.cpp b/main.cpp index 6848342b7..8e32ee7c3 100644 --- a/main.cpp +++ b/main.cpp @@ -3197,6 +3197,7 @@ void BitcoinMiner() while (!mapPriority.empty()) { // Take highest priority transaction off priority queue + double dPriority = (*mapPriority.begin()).first; CTransaction& tx = *(*mapPriority.begin()).second; mapPriority.erase(mapPriority.begin()); @@ -3208,8 +3209,9 @@ void BitcoinMiner() if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS) continue; - // Transaction fee based on block size - int64 nMinFee = tx.GetMinFee(nBlockSize); + // Transaction fee required depends on block size + bool fAllowFree = (nBlockSize + nTxSize < 4000 || dPriority > COIN * 144 / 250); + int64 nMinFee = tx.GetMinFee(nBlockSize, fAllowFree); // Connecting shouldn't fail due to dependency on other memory pool transactions // because we're already processing them in order of dependency -- cgit v1.2.3