PPCoin: Automatic checkpoint

[novacoin.git] / src / checkpoints.h

diff --git a/src/checkpoints.h b/src/checkpoints.h
index 32094fd..78ccce9 100644 (file)
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -1,10 +1,19 @@
 // Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2011 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.
 #ifndef BITCOIN_CHECKPOINT_H
 #define  BITCOIN_CHECKPOINT_H
 
+#include <map>
+#include "util.h"
+
+// ppcoin: auto checkpoint min at 1 day; max at 1 week
+#define AUTO_CHECKPOINT_MIN_SPAN (60 * 60 * 24)
+#define AUTO_CHECKPOINT_MAX_SPAN (60 * 60 * 24 * 7)
+
 class uint256;
+class CBlockIndex;
 
 //
 // Block-chain checkpoints are compiled-in sanity checks.
@@ -12,11 +21,20 @@ class uint256;
 //
 namespace Checkpoints
 {
+    extern int nAutoCheckpoint;
+
     // Returns true if block passes checkpoint checks
-    bool CheckBlock(int nHeight, const uint256& hash);
+    bool CheckHardened(int nHeight, const uint256& hash);
+    bool CheckAuto(const CBlockIndex *pindex);
+
+    int  GetNextChainCheckpoint(const CBlockIndex *pindex);
+    void AdvanceAutoCheckpoint(int nCheckpoint);
 
     // 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);
 }
 
 #endif