Add different BlockTimer for Proof of Work and Proof of Stake

Tillkoeln · Apr 5, 2016 · 81ca113 · 81ca113
1 parent 9ce48c5
commit 81ca113
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Showing 8 changed files with 253 additions and 21 deletions.
diff --git a/bitcoin-qt.pro b/bitcoin-qt.pro
@@ -2,13 +2,18 @@ TEMPLATE = app
 TARGET = Adderalcoin-qt
 VERSION = 1.0.0
 INCLUDEPATH += src src/json src/qt
+QT += core gui network
 DEFINES += QT_GUI BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE
+DEFINES += QT_STATIC
 CONFIG += no_include_pwd
 CONFIG += thread
 CONFIG += static
+
+QMAKE_CXXFLAGS = -fpermissive
+
 greaterThan(QT_MAJOR_VERSION, 4) {
     QT += widgets
-    DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+    DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x040800
 }
 
 # for boost 1.37, add -mt to the boost libraries
@@ -27,15 +32,12 @@ BOOST_INCLUDE_PATH=C:/deps/boost_1_55_0
 BOOST_LIB_PATH=C:/deps/boost_1_55_0/stage/lib
 BDB_INCLUDE_PATH=C:/deps/db-4.8.30.NC/build_unix
 BDB_LIB_PATH=C:/deps/db-4.8.30.NC/build_unix
-OPENSSL_INCLUDE_PATH=C:/deps/openssl-1.0.1h/include
-OPENSSL_LIB_PATH=C:/deps/openssl-1.0.1h
+OPENSSL_INCLUDE_PATH=C:/deps/openssl-1.0.1p/include
+OPENSSL_LIB_PATH=C:/deps/openssl-1.0.1p
 MINIUPNPC_INCLUDE_PATH=C:/deps/
 MINIUPNPC_LIB_PATH=C:/deps/miniupnpc
-QRENCODE_INCLUDE_PATH=C:/deps/qrencode-3.4.3
-QRENCODE_LIB_PATH=C:/deps/qrencode-3.4.3/.libs
-
-
-
+QRENCODE_INCLUDE_PATH=C:/deps/qrencode-3.4.4
+QRENCODE_LIB_PATH=C:/deps/qrencode-3.4.4/.libs
 OBJECTS_DIR = build
 MOC_DIR = build
 UI_DIR = build
@@ -409,7 +411,7 @@ OTHER_FILES += \
 # platform specific defaults, if not overridden on command line
 isEmpty(BOOST_LIB_SUFFIX) {
     macx:BOOST_LIB_SUFFIX = -mt
-    windows:BOOST_LIB_SUFFIX = -mt
+    windows:BOOST_LIB_SUFFIX = -mgw49-mt-s-1_55
 }
 
 isEmpty(BOOST_THREAD_LIB_SUFFIX) {

diff --git a/bitcoin-qt.pro.user b/bitcoin-qt.pro.user
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diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
@@ -192,7 +192,7 @@ namespace Checkpoints
     {
         const CBlockIndex *pindex = pindexBest;
         // Search backward for a block within max span and maturity window
-        while (pindex->pprev && (pindex->GetBlockTime() + nCheckpointSpan * nTargetSpacing > pindexBest->GetBlockTime() || pindex->nHeight + nCheckpointSpan > pindexBest->nHeight))
+        while (pindex->pprev && (pindex->GetBlockTime() + CHECKPOINT_MAX_SPAN > pindexBest->GetBlockTime() || pindex->nHeight + 8 > pindexBest->nHeight))
             pindex = pindex->pprev;
         return pindex->GetBlockHash();
     }

diff --git a/src/checkpoints.h b/src/checkpoints.h
@@ -4,6 +4,8 @@
 #ifndef BITCOIN_CHECKPOINT_H
 #define  BITCOIN_CHECKPOINT_H
 
+#define CHECKPOINT_MAX_SPAN (60 * 60) // max 1 hour before latest block
+
 #include <map>
 #include "net.h"
 #include "util.h"

diff --git a/src/kernel.cpp b/src/kernel.cpp
@@ -9,6 +9,9 @@
 
 using namespace std;
 
+extern unsigned int nStakeMaxAge;
+extern unsigned int nStakeTargetSpacing;
+
 typedef std::map<int, unsigned int> MapModifierCheckpoints;
 
 // Hard checkpoints of stake modifiers to ensure they are deterministic
@@ -144,7 +147,7 @@ bool ComputeNextStakeModifier(const CBlockIndex* pindexPrev, uint64_t& nStakeMod
 
     // Sort candidate blocks by timestamp
     vector<pair<int64_t, uint256> > vSortedByTimestamp;
-    vSortedByTimestamp.reserve(64 * nModifierInterval / nTargetSpacing);
+    vSortedByTimestamp.reserve(64 * nModifierInterval / nStakeTargetSpacing);
     int64_t nSelectionInterval = GetStakeModifierSelectionInterval();
     int64_t nSelectionIntervalStart = (pindexPrev->GetBlockTime() / nModifierInterval) * nModifierInterval - nSelectionInterval;
     const CBlockIndex* pindex = pindexPrev;

diff --git a/src/main.cpp b/src/main.cpp
@@ -39,8 +39,10 @@ libzerocoin::Params* ZCParams;
 CBigNum bnProofOfWorkLimit(~uint256(0) >> 20); // target limit for proof of work, results with 0,000244140625 proof-of-work difficulty
 CBigNum bnProofOfStakeLimit(~uint256(0) >> 20);
 CBigNum bnProofOfWorkLimitTestNet(~uint256(0) >> 16);
+static CBigNum bnProofOfStakeLimitTestNet(~uint256(0) >> 16);
 
-unsigned int nTargetSpacing = 60; // 1 minutes per block
+unsigned int nWorkTargetSpacing = 60; // 1 minutes per block
+unsigned int nStakeTargetSpacing = 15; // 15 seconds
 unsigned int nStakeMinAge = 4 * 60 * 60; // 4 hours
 unsigned int nStakeMaxAge = -1; // unlimited
 unsigned int nModifierInterval = 10 * 60; // time to elapse before new modifier is computed
@@ -1060,7 +1062,15 @@ const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfSta
 
 unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfStake)
 {
-    CBigNum bnTargetLimit = fProofOfStake ? bnProofOfStakeLimit : bnProofOfWorkLimit;
+    const int64_t maxTargetTimespan = 960;
+    const int64_t nInterval = 30;
+    CBigNum bnTargetLimit = bnProofOfWorkLimit;
+
+    if(fProofOfStake)
+    {
+        // Proof-of-Stake blocks has own target limit since nVersion=3 supermajority on mainNet and always on testNet
+        bnTargetLimit = bnProofOfStakeLimit;
+    }
 
     if (pindexLast == NULL)
         return bnTargetLimit.GetCompact(); // genesis block
@@ -1073,18 +1083,26 @@ unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfS
         return bnTargetLimit.GetCompact(); // second block
 
     int64_t nActualSpacing = pindexPrev->GetBlockTime() - pindexPrevPrev->GetBlockTime();
-    if (nActualSpacing < 0)
-        nActualSpacing = nTargetSpacing;
+    if(nActualSpacing < 0)
+    {
+        nActualSpacing = 1;
+    }
+    else if(nActualSpacing > maxTargetTimespan)
+    {
+        nActualSpacing = maxTargetTimespan;
+    }
 
-    // ppcoin: target change every block
-    // ppcoin: retarget with exponential moving toward target spacing
     CBigNum bnNew;
     bnNew.SetCompact(pindexPrev->nBits);
-    int64_t nInterval = nTargetTimespan / nTargetSpacing;
+
+    int64_t nTargetSpacing = nWorkTargetSpacing;
+    if(fProofOfStake)
+        nTargetSpacing = nStakeTargetSpacing;
+
     bnNew *= ((nInterval - 1) * nTargetSpacing + nActualSpacing + nActualSpacing);
     bnNew /= ((nInterval + 1) * nTargetSpacing);
 
-    if (bnNew <= 0 || bnNew > bnTargetLimit)
+    if (bnNew > bnTargetLimit)
         bnNew = bnTargetLimit;
 
     return bnNew.GetCompact();

diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
@@ -61,6 +61,7 @@
 
 extern CWallet* pwalletMain;
 extern int64_t nLastCoinStakeSearchInterval;
+extern unsigned int nStakeTargetSpacing;
 double GetPoSKernelPS();
 
 BitcoinGUI::BitcoinGUI(QWidget *parent):
@@ -926,7 +927,7 @@ void BitcoinGUI::updateStakingIcon()
     if (nLastCoinStakeSearchInterval && nWeight)
     {
         uint64_t nNetworkWeight = GetPoSKernelPS();
-        unsigned nEstimateTime = nTargetSpacing * nNetworkWeight / nWeight;
+        unsigned nEstimateTime = nStakeTargetSpacing * nNetworkWeight / nWeight;
 
         QString text;
         if (nEstimateTime < 60)