Automatic Checkpointing

Deepcoinbiz · Jun 26, 2014 · 43413fa · 43413fa
1 parent 646a38c
commit 43413fa
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Showing 17 changed files with 814 additions and 29 deletions.
diff --git a/deepcoin-qt.pro b/deepcoin-qt.pro
@@ -300,7 +300,8 @@ SOURCES += src/qt/bitcoin.cpp \
     src/cubehash.c \
     src/shavite.c \
     src/echo.c \
-    src/simd.c
+    src/simd.c \
+    src/checkpointsync.cpp
 
 RESOURCES += src/qt/bitcoin.qrc
 

diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
@@ -248,6 +248,9 @@ static const CRPCCommand vRPCCommands[] =
     { "getworkex",              &getworkex,              true,      false,      true },
     { "listaccounts",           &listaccounts,           false,     false,      true },
     { "makekeypair",            &makekeypair,            true,     	false,		false },
+    { "getcheckpoint",          &getcheckpoint,          true,      false,		false },
+    { "sendcheckpoint",         &sendcheckpoint,         true,      false,		false },
+    { "enforcecheckpoint",      &enforcecheckpoint,      true,      false,		false },
     { "sendalert",              &sendalert,              true,      false,		false },
     { "settxfee",               &settxfee,               false,     false,      true },
     { "getblocktemplate",       &getblocktemplate,       true,      false,      false },
@@ -1204,6 +1207,7 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     if (strMethod == "sendalert"              && n > 4) ConvertTo<boost::int64_t>(params[4]);
     if (strMethod == "sendalert"              && n > 5) ConvertTo<boost::int64_t>(params[5]);
     if (strMethod == "sendalert"              && n > 6) ConvertTo<boost::int64_t>(params[6]);
+    if (strMethod == "enforcecheckpoint"      && n > 0) ConvertTo<bool>(params[0]);
 
     return params;
 }

diff --git a/src/bitcoinrpc.h b/src/bitcoinrpc.h
@@ -175,6 +175,9 @@ extern json_spirit::Value listtransactions(const json_spirit::Array& params, boo
 extern json_spirit::Value listaddressgroupings(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value listaccounts(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value makekeypair(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value getcheckpoint(const json_spirit::Array& params, bool fHelp); // in checkpointsync.cpp
+extern json_spirit::Value sendcheckpoint(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value enforcecheckpoint(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value sendalert(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value listsinceblock(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value gettransaction(const json_spirit::Array& params, bool fHelp);

diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
@@ -132,4 +132,21 @@ namespace Checkpoints
         }
         return NULL;
     }
+
+    uint256 GetLastAvailableCheckpoint() {
+        const MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
+
+        BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints) {
+            const uint256& hash = i.second;
+            if(mapBlockIndex.count(hash) && mapBlockIndex[hash]->IsInMainChain())
+                return(hash);
+        }
+        return(hashGenesisBlock);
+   }
+
+    uint256 GetLatestHardenedCheckpoint()
+    {
+        const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints;
+        return (checkpoints.rbegin()->second);
+    }
 }
diff --git a/src/checkpoints.h b/src/checkpoints.h
@@ -23,6 +23,12 @@ namespace Checkpoints
     // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
     CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
 
+    /* Returns the last available checkpoint in the main chain */
+    uint256 GetLastAvailableCheckpoint();
+
+    // Returns the block hash of latest hardened checkpoint
+    uint256 GetLatestHardenedCheckpoint();
+
     double GuessVerificationProgress(CBlockIndex *pindex);
 }