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.h | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) (limited to 'main.h') diff --git a/main.h b/main.h index d5734103c0..cc150e62b6 100644 --- a/main.h +++ b/main.h @@ -528,21 +528,24 @@ public: return nValueOut; } - int64 GetMinFee(unsigned int nBlockSize=1) const + int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=true) const { // Base fee is 1 cent per kilobyte unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK); unsigned int nNewBlockSize = nBlockSize + nBytes; int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT; - // Transactions under 25K are free as long as block size is under 40K - // (about 11,000bc if made of 50bc inputs) - if (nBytes < 25000 && nNewBlockSize < 40000) - nMinFee = 0; - - // Transactions under 3K are free as long as block size is under 50K - if (nBytes < 3000 && nNewBlockSize < 50000) - nMinFee = 0; + if (fAllowFree) + { + // Transactions under 25K are free as long as block size is under 40K + // (about 11,000bc if made of 50bc inputs) + if (nBytes < 25000 && nNewBlockSize < 40000) + nMinFee = 0; + + // Transactions under 3K are free as long as block size is under 50K + if (nBytes < 3000 && nNewBlockSize < 50000) + nMinFee = 0; + } // To limit dust spam, require a 0.01 fee if any output is less than 0.01 if (nMinFee < CENT) -- cgit v1.2.3