X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fcheckpoints.h;h=9d5a16652ee196a64e7b9c891cf9de5b8d562bd8;hb=9795536e660254a25984d0fc81a548eaf0e91c92;hp=033b2286dd55ba50e7ddb1b3e4917ad5570c671d;hpb=5fd6c2c30e1a0dd25e6efe20a55ca1b212e80c98;p=novacoin.git

diff --git a/src/checkpoints.h b/src/checkpoints.h
index 033b228..9d5a166 100644
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -15,6 +15,7 @@
 
 class uint256;
 class CBlockIndex;
+class CSyncCheckpoint;
 
 //
 // Block-chain checkpoints are compiled-in sanity checks.
@@ -31,18 +32,105 @@ namespace Checkpoints
     // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
     CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
 
-    // ppcoin: synchronized checkpoint
     extern uint256 hashSyncCheckpoint;
+    extern CSyncCheckpoint checkpointMessage;
+    extern uint256 hashInvalidCheckpoint;
+    extern CCriticalSection cs_hashSyncCheckpoint;
 
-    // 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);
+    CBlockIndex* GetLastSyncCheckpoint();
+    bool AcceptPendingSyncCheckpoint();
+    uint256 AutoSelectSyncCheckpoint();
+    bool CheckSync(const uint256& hashBlock, const CBlockIndex* pindexPrev);
+    bool WantedByPendingSyncCheckpoint(uint256 hashBlock);
 }
 
+// ppcoin: synchronized checkpoint
+class CUnsignedSyncCheckpoint
+{
+public:
+    int nVersion;
+    uint256 hashCheckpoint;      // checkpoint block
+
+    IMPLEMENT_SERIALIZE
+    (
+        READWRITE(this->nVersion);
+        nVersion = this->nVersion;
+        READWRITE(hashCheckpoint);
+    )
+
+    void SetNull()
+    {
+        nVersion = 1;
+        hashCheckpoint = 0;
+    }
+
+    std::string ToString() const
+    {
+        return strprintf(
+                "CSyncCheckpoint(\n"
+                "    nVersion       = %d\n"
+                "    hashCheckpoint = %s\n"
+                ")\n",
+            nVersion,
+            hashCheckpoint.ToString().c_str());
+    }
+
+    void print() const
+    {
+        printf("%s", ToString().c_str());
+    }
+};
+
+class CSyncCheckpoint : public CUnsignedSyncCheckpoint
+{
+public:
+    static const std::string strMasterPubKey;
+
+    std::vector<unsigned char> vchMsg;
+    std::vector<unsigned char> vchSig;
+
+    CSyncCheckpoint()
+    {
+        SetNull();
+    }
+
+    IMPLEMENT_SERIALIZE
+    (
+        READWRITE(vchMsg);
+        READWRITE(vchSig);
+    )
+
+    void SetNull()
+    {
+        CUnsignedSyncCheckpoint::SetNull();
+        vchMsg.clear();
+        vchSig.clear();
+    }
+
+    bool IsNull() const
+    {
+        return (hashCheckpoint == 0);
+    }
+
+    uint256 GetHash() const
+    {
+        return SerializeHash(*this);
+    }
+
+    bool RelayTo(CNode* pnode) const
+    {
+        // returns true if wasn't already sent
+        if (pnode->hashCheckpointKnown != hashCheckpoint)
+        {
+            pnode->hashCheckpointKnown = hashCheckpoint;
+            pnode->PushMessage("checkpoint", *this);
+            return true;
+        }
+        return false;
+    }
+
+    bool CheckSignature();
+    bool ProcessSyncCheckpoint(CNode* pfrom);
+};
+
 #endif