class uint256;
class CBlockIndex;
-//
-// Block-chain checkpoints are compiled-in sanity checks.
-// They are updated every release or three.
-//
-namespace Checkpoints
+// ppcoin: synchronized checkpoint
+class CUnsignedSyncCheckpoint
{
- // 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();
+public:
+ int nVersion;
+ uint256 hashCheckpoint; // checkpoint block
+
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(this->nVersion);
+ nVersion = this->nVersion;
+ READWRITE(hashCheckpoint);
+ )
+
+ void SetNull()
+ {
+ nVersion = 1;
+ hashCheckpoint = 0;
+ }
- // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
- CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
+ 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());
+ }
+};
- // ppcoin: synchronized checkpoint
- extern uint256 hashSyncCheckpoint;
+class CSyncCheckpoint : public CUnsignedSyncCheckpoint
+{
+public:
+ std::vector<unsigned char> vchMsg;
+ std::vector<unsigned char> vchSig;
- class CUnsignedSyncCheckpoint
+ CSyncCheckpoint()
{
- public:
- int nVersion;
- uint256 hashCheckpoint; // checkpoint block
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(this->nVersion);
- nVersion = this->nVersion;
- READWRITE(hashCheckpoint);
- )
-
- void SetNull()
- {
- nVersion = 1;
- hashCheckpoint = 0;
- }
+ SetNull();
+ }
- std::string ToString() const
- {
- return strprintf(
- "CSyncCheckpoint(\n"
- " nVersion = %d\n"
- " hashCheckpoint = %s\n"
- ")\n",
- nVersion,
- hashCheckpoint.ToString().c_str());
- }
+ IMPLEMENT_SERIALIZE
+ (
+ READWRITE(vchMsg);
+ READWRITE(vchSig);
+ )
- void print() const
- {
- printf("%s", ToString().c_str());
- }
- };
+ void SetNull()
+ {
+ CUnsignedSyncCheckpoint::SetNull();
+ vchMsg.clear();
+ vchSig.clear();
+ }
- class CSyncCheckpoint : public CUnsignedSyncCheckpoint
+ bool IsNull() const
{
- public:
- std::vector<unsigned char> vchMsg;
- std::vector<unsigned char> vchSig;
+ return (hashCheckpoint == 0);
+ }
- CSyncCheckpoint()
+ uint256 GetHash() const
+ {
+ return SerializeHash(*this);
+ }
+
+ bool RelayTo(CNode* pnode) const
+ {
+ // returns true if wasn't already sent
+ if (pnode->hashCheckpointKnown != hashCheckpoint)
{
- SetNull();
+ pnode->hashCheckpointKnown = hashCheckpoint;
+ pnode->PushMessage("checkpoint", *this);
+ return true;
}
+ return false;
+ }
- IMPLEMENT_SERIALIZE
- (
- READWRITE(vchMsg);
- READWRITE(vchSig);
- )
+ bool CheckSignature()
+ {
+ CKey key;
+ if (!key.SetPubKey(ParseHex("04ea21daea8c15559870b5e93750ddc2f0c16bd0cb16636ba88c0746cfac07912ec7ad14111cc4aedda12c2687c920c7b7b62fd67ca14eed53f2d1704ec72362ce")))
+ return error("CSyncCheckpoint::CheckSignature() : SetPubKey failed");
+ if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
+ return error("CSyncCheckpoint::CheckSignature() : verify signature failed");
- void SetNull()
- {
- CUnsignedSyncCheckpoint::SetNull();
- vchMsg.clear();
- vchSig.clear();
- }
+ // Now unserialize the data
+ CDataStream sMsg(vchMsg);
+ sMsg >> *(CUnsignedSyncCheckpoint*)this;
+ return true;
+ }
- bool IsNull() const
- {
- return (hashCheckpoint == 0);
- }
+ bool ProcessSyncCheckpoint(CNode* pfrom);
+};
- uint256 GetHash() const
- {
- return SerializeHash(*this);
- }
+//
+// 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);
- 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;
- }
+ // Return conservative estimate of total number of blocks, 0 if unknown
+ int GetTotalBlocksEstimate();
- 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;
- }
+ // Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
+ CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex);
- bool ProcessSyncCheckpoint();
- };
+ extern uint256 hashSyncCheckpoint;
+ extern CSyncCheckpoint checkpointMessage;
+ extern uint256 hashInvalidCheckpoint;
+ extern CCriticalSection cs_hashSyncCheckpoint;
+
+ bool AcceptPendingSyncCheckpoint();
+ uint256 AutoSelectSyncCheckpoint();
+ bool CheckSync(const uint256& hashBlock, const CBlockIndex* pindexPrev);
+ bool IsPendingSyncCheckpoint(uint256 hashBlock);
// ppcoin: automatic checkpoint
extern int nAutoCheckpoint;