From 4c6d41b8b653ef90639b1a32f6aab0bb1cef90c5 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Thu, 10 Oct 2013 23:07:44 +0200
Subject: Refactor/encapsulate chain globals into a CChain class

---
 src/rpcblockchain.cpp | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'src/rpcblockchain.cpp')

diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index 398f33605a..957241d6a0 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -17,10 +17,10 @@ double GetDifficulty(const CBlockIndex* blockindex)
     // minimum difficulty = 1.0.
     if (blockindex == NULL)
     {
-        if (pindexBest == NULL)
+        if (chainActive.Tip() == NULL)
             return 1.0;
         else
-            blockindex = pindexBest;
+            blockindex = chainActive.Tip();
     }
 
     int nShift = (blockindex->nBits >> 24) & 0xff;
@@ -66,7 +66,7 @@ Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
 
     if (blockindex->pprev)
         result.push_back(Pair("previousblockhash", blockindex->pprev->GetBlockHash().GetHex()));
-    CBlockIndex *pnext = blockindex->GetNextInMainChain();
+    CBlockIndex *pnext = chainActive.Next(blockindex);
     if (pnext)
         result.push_back(Pair("nextblockhash", pnext->GetBlockHash().GetHex()));
     return result;
@@ -80,7 +80,7 @@ Value getblockcount(const Array& params, bool fHelp)
             "getblockcount\n"
             "Returns the number of blocks in the longest block chain.");
 
-    return nBestHeight;
+    return chainActive.Height();
 }
 
 Value getbestblockhash(const Array& params, bool fHelp)
@@ -90,7 +90,7 @@ Value getbestblockhash(const Array& params, bool fHelp)
             "getbestblockhash\n"
             "Returns the hash of the best (tip) block in the longest block chain.");
 
-    return hashBestChain.GetHex();
+    return chainActive.Tip()->GetBlockHash().GetHex();
 }
 
 Value getdifficulty(const Array& params, bool fHelp)
@@ -145,11 +145,11 @@ Value getblockhash(const Array& params, bool fHelp)
             "Returns hash of block in best-block-chain at <index>.");
 
     int nHeight = params[0].get_int();
-    if (nHeight < 0 || nHeight > nBestHeight)
+    if (nHeight < 0 || nHeight > chainActive.Height())
         throw runtime_error("Block number out of range.");
 
-    CBlockIndex* pblockindex = FindBlockByHeight(nHeight);
-    return pblockindex->phashBlock->GetHex();
+    CBlockIndex* pblockindex = chainActive[nHeight];
+    return pblockindex->GetBlockHash().GetHex();
 }
 
 Value getblock(const Array& params, bool fHelp)
-- 
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