// 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 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"
+#include "serialize.h"
+#include "sync.h"
+#include "uint256.h"
+
+#include <map>
-#define STAKE_MIN_AGE (60 * 60 * 24) // minimum age for coin age
-#define CHECKPOINT_MAX_SPAN (60 * 60 * 4) // max 4 hours before latest block
+// max 1 hour before latest block
+static const int64_t CHECKPOINT_MAX_SPAN = nOneHour;
+
+#ifdef WIN32
+#undef STRICT
+#undef PERMISSIVE
+#undef ADVISORY
+#endif
-class uint256;
class CBlockIndex;
class CSyncCheckpoint;
+class CNode;
/** Block-chain checkpoints are compiled-in sanity checks.
* They are updated every release or three.
*/
namespace Checkpoints
{
+ /** Checkpointing mode */
+ enum CPMode
+ {
+ // Scrict checkpoints policy, perform conflicts verification and resolve conflicts
+ STRICT = 0,
+ // Advisory checkpoints policy, perform conflicts verification but don't try to resolve them
+ ADVISORY = 1,
+ // Permissive checkpoints policy, don't perform any checking
+ PERMISSIVE = 2
+ };
+
// Returns true if block passes checkpoint checks
bool CheckHardened(int nHeight, const uint256& hash);
+ // Returns true if block passes banlist checks
+ bool CheckBanned(const uint256 &nHash);
+
// 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);
+ // Returns last checkpoint timestamp
+ unsigned int GetLastCheckpointTime();
+
extern uint256 hashSyncCheckpoint;
extern CSyncCheckpoint checkpointMessage;
extern uint256 hashInvalidCheckpoint;
nVersion,
hashCheckpoint.ToString().c_str());
}
-
- void print() const
- {
- printf("%s", ToString().c_str());
- }
};
class CSyncCheckpoint : public CUnsignedSyncCheckpoint
std::vector<unsigned char> vchMsg;
std::vector<unsigned char> vchSig;
- CSyncCheckpoint()
- {
- SetNull();
- }
+ CSyncCheckpoint();
IMPLEMENT_SERIALIZE
(
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;
- }
-
+ void SetNull();
+ bool IsNull() const;
+ uint256 GetHash() const;
+ bool RelayTo(CNode* pnode) const;
bool CheckSignature();
bool ProcessSyncCheckpoint(CNode* pfrom);
};