Merge with Bitcoin v0.6.3

[novacoin.git] / src / checkpoints.h

diff --git a/src/checkpoints.h b/src/checkpoints.h
index d193a2a..ff815c8 100644 (file)
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -1,20 +1,49 @@
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Copyright (c) 2011-2012 The PPCoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_CHECKPOINT_H
 #define  BITCOIN_CHECKPOINT_H
 
 #include <map>
+#include "net.h"
 #include "util.h"
 
-// ppcoin: auto checkpoint min at 8 hours; max at 16 hours
-#define AUTO_CHECKPOINT_MIN_SPAN   (60 * 60 * 8)
-#define AUTO_CHECKPOINT_MAX_SPAN   (60 * 60 * 16)
-#define AUTO_CHECKPOINT_TRUST_SPAN (60 * 60 * 24)
+#define STAKE_MIN_AGE (60 * 60 * 24)      // minimum age for coin age
+#define CHECKPOINT_MIN_SPAN (60 * 60 * 4) // 4 hours checkpoint
 
 class uint256;
 class CBlockIndex;
+class CSyncCheckpoint;
+
+/** Block-chain checkpoints are compiled-in sanity checks.
+ * They are updated every release or three.
+ */
+namespace Checkpoints
+{
+    // Returns true if block passes checkpoint checks
+    bool CheckHardened(int nHeight, const uint256& hash);
+
+    // Return conservative estimate of total number of blocks, 0 if unknown
+    int GetTotalBlocksEstimate();
+
+    // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
+    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
+
+    extern uint256 hashSyncCheckpoint;
+    extern CSyncCheckpoint checkpointMessage;
+    extern uint256 hashInvalidCheckpoint;
+    extern CCriticalSection cs_hashSyncCheckpoint;
+
+    CBlockIndex* GetLastSyncCheckpoint();
+    bool WriteSyncCheckpoint(const uint256& hashCheckpoint);
+    bool AcceptPendingSyncCheckpoint();
+    uint256 AutoSelectSyncCheckpoint();
+    bool CheckSync(const uint256& hashBlock, const CBlockIndex* pindexPrev);
+    bool WantedByPendingSyncCheckpoint(uint256 hashBlock);
+    bool ResetSyncCheckpoint();
+    void AskForPendingSyncCheckpoint(CNode* pfrom);
+}
 
 // ppcoin: synchronized checkpoint
 class CUnsignedSyncCheckpoint
@@ -56,6 +85,8 @@ public:
 class CSyncCheckpoint : public CUnsignedSyncCheckpoint
 {
 public:
+    static const std::string strMasterPubKey;
+
     std::vector<unsigned char> vchMsg;
     std::vector<unsigned char> vchSig;
 
@@ -99,53 +130,8 @@ public:
         return false;
     }
 
-    bool CheckSignature()
-    {
-        CKey key;
-        if (!key.SetPubKey(ParseHex("0487ca85b6ae9d311f996c7616d20d0c88a5b4f07d25e78f419019f35cce6522acf978b2d99f0e7a58db1f120439e5c1889266927854aa57c93956c2569188a539")))
-            return error("CSyncCheckpoint::CheckSignature() : SetPubKey failed");
-        if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
-            return error("CSyncCheckpoint::CheckSignature() : verify signature failed");
-
-        // Now unserialize the data
-        CDataStream sMsg(vchMsg);
-        sMsg >> *(CUnsignedSyncCheckpoint*)this;
-        return true;
-    }
-
+    bool CheckSignature();
     bool ProcessSyncCheckpoint(CNode* pfrom);
 };
 
-//
-// Block-chain checkpoints are compiled-in sanity checks.
-// They are updated every release or three.
-//
-namespace Checkpoints
-{
-    // Returns true if block passes checkpoint checks
-    bool CheckHardened(int nHeight, const uint256& hash);
-
-    // Return conservative estimate of total number of blocks, 0 if unknown
-    int GetTotalBlocksEstimate();
-
-    // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
-    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
-
-    extern uint256 hashSyncCheckpoint;
-    extern CSyncCheckpoint checkpointMessage;
-    extern CCriticalSection cs_hashSyncCheckpoint;
-
-    bool AcceptPendingSyncCheckpoint(uint256 hashAcceptedBlock);
-
-    // ppcoin: automatic checkpoint
-    extern int nAutoCheckpoint;
-    extern int nBranchPoint;
-
-    bool CheckAuto(const CBlockIndex *pindex);
-    int  GetNextChainCheckpoint(const CBlockIndex *pindex);
-    int  GetNextAutoCheckpoint(int nCheckpoint);
-    void AdvanceAutoCheckpoint(int nCheckpoint);
-    bool ResetAutoCheckpoint(int nCheckpoint);
-}
-
 #endif