From c6cb21d17ab8097b6a425d37e48c955fbb0e9f0c Mon Sep 17 00:00:00 2001
From: Gavin Andresen <gavinandresen@gmail.com>
Date: Thu, 10 Apr 2014 14:14:18 -0400
Subject: Type-safe CFeeRate class

Use CFeeRate instead of an int64_t for quantities that are
fee-per-size.

Helps prevent unit-conversion mismatches between the wallet,
relaying, and mining code.
---
 src/core.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'src/core.cpp')

diff --git a/src/core.cpp b/src/core.cpp
index aadcb44b9..6039986e6 100644
--- a/src/core.cpp
+++ b/src/core.cpp
@@ -72,6 +72,25 @@ void CTxOut::print() const
     LogPrintf("%s\n", ToString());
 }
 
+CFeeRate::CFeeRate(int64_t nFeePaid, size_t nSize)
+{
+    if (nSize > 0)
+        nSatoshisPerK = nFeePaid*1000/nSize;
+    else
+        nSatoshisPerK = 0;
+}
+
+int64_t CFeeRate::GetFee(size_t nSize)
+{
+    return nSatoshisPerK*nSize / 1000;
+}
+
+std::string CFeeRate::ToString() const
+{
+    std::string result = FormatMoney(nSatoshisPerK) + " BTC/kB";
+    return result;
+}
+
 uint256 CTransaction::GetHash() const
 {
     return SerializeHash(*this);
-- 
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