From 6d0f68fa4d061f04c9978598b9b88ba477d7f4d3 Mon Sep 17 00:00:00 2001
From: alexhz <balthazar@yandex.ru>
Date: Wed, 19 Jun 2013 21:05:07 +0000
Subject: [PATCH] Add network PoW speed and Stake weight estimation into getmininginfo

---
 src/bitcoinrpc.cpp |    4 ++--
 src/rpcmining.cpp  |   26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 0085e5c..0997076 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -1166,8 +1166,8 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
     if (strMethod == "sendmany"               && n > 1) ConvertTo<Object>(params[1]);
     if (strMethod == "sendmany"               && n > 2) ConvertTo<boost::int64_t>(params[2]);
-    if (strMethod == "reservebalance"          && n > 0) ConvertTo<bool>(params[0]);
-    if (strMethod == "reservebalance"          && n > 1) ConvertTo<double>(params[1]);
+    if (strMethod == "reservebalance"         && n > 0) ConvertTo<bool>(params[0]);
+    if (strMethod == "reservebalance"         && n > 1) ConvertTo<double>(params[1]);
     if (strMethod == "addmultisigaddress"     && n > 0) ConvertTo<boost::int64_t>(params[0]);
     if (strMethod == "addmultisigaddress"     && n > 1) ConvertTo<Array>(params[1]);
     if (strMethod == "listunspent"            && n > 0) ConvertTo<boost::int64_t>(params[0]);
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index c5ccea2..311b9b4 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -18,11 +18,37 @@ Value getmininginfo(const Array& params, bool fHelp)
             "getmininginfo\n"
             "Returns an object containing mining-related information.");
 
+    int64 nTargetSpacingWorkMin = 30;
+    int64 nTargetSpacingWork = nTargetSpacingWorkMin;
+    int64 nPoWInterval = 72;
+    int64 nTargetSpacingStake = 10;
+
+    CBlockIndex* pindex = pindexGenesisBlock;
+    CBlockIndex* pindexPrevWork = pindexGenesisBlock;
+
+    while (pindex)
+    {
+        if (pindex->IsProofOfWork())
+        {
+            int64 nActualSpacingWork = pindex->GetBlockTime() - pindexPrevWork->GetBlockTime();
+            nTargetSpacingWork = ((nPoWInterval - 1) * nTargetSpacingWork + nActualSpacingWork + nActualSpacingWork) / (nPoWInterval + 1);
+            nTargetSpacingWork = max(nTargetSpacingWork, nTargetSpacingWorkMin);
+            pindexPrevWork = pindex;
+        }
+
+        pindex = pindex->pnext;
+    }
+    
+    double dNetworkMhps = GetDifficulty() * 4294.967296 / nTargetSpacingWork;
+    int nNetworkWeight = GetDifficulty(GetLastBlockIndex(pindexBest, true)) * 4294967296 / nTargetSpacingStake;
+
     Object obj;
     obj.push_back(Pair("blocks",        (int)nBestHeight));
     obj.push_back(Pair("currentblocksize",(uint64_t)nLastBlockSize));
     obj.push_back(Pair("currentblocktx",(uint64_t)nLastBlockTx));
     obj.push_back(Pair("difficulty",    (double)GetDifficulty()));
+    obj.push_back(Pair("netmhashps",     dNetworkMhps));
+    obj.push_back(Pair("netstakeweight", nNetworkWeight));
     obj.push_back(Pair("errors",        GetWarnings("statusbar")));
     obj.push_back(Pair("pooledtx",      (uint64_t)mempool.size()));
     obj.push_back(Pair("stakepower",    (uint64_t)pwalletMain->GetStakeMintPower(*pwalletMain)));
-- 
1.7.1