-// Copyright (c) 2011 The Bitcoin developers
-// Copyright (c) 2011-2012 The PPCoin developers
+// Copyright (c) 2009-2012 The Bitcoin 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.
#include <boost/assign/list_of.hpp> // for 'map_list_of()'
#include <boost/foreach.hpp>
+#include <algorithm>
-#include "headers.h"
#include "checkpoints.h"
+#include "txdb.h"
+#include "main.h"
+#include "uint256.h"
+
namespace Checkpoints
{
- typedef std::map<int, uint256> MapCheckpoints; // hardened checkpoints
+ typedef std::map<int, std::pair<uint256, unsigned int> > MapCheckpoints;
+ typedef std::list<uint256> ListBannedBlocks;
//
// What makes a good checkpoint block?
//
static MapCheckpoints mapCheckpoints =
boost::assign::map_list_of
- ( 0, hashGenesisBlockOfficial )
- ; // ppcoin: no checkpoint yet; to be created in future releases
+ ( 0, std::make_pair(hashGenesisBlock, 1360105017) )
+ ( 13560, std::make_pair(uint256("0xa1591a0fcbf11f282d671581edb9f0aadcd06fee69761081e0a3245914c13729"), 1364674052) )
+ ( 143990, std::make_pair(uint256("0x00000000001ff5c3940a9f73ad4a990f64955179bde0f743c76dbf0031429efc"), 1418953493) )
+ ( 149000, std::make_pair(uint256("0x7a24acfcadcf43054e7f7d9f273522c0dfc5791ba4006e0273e7521a8d36c525"), 1420872125) )
+ ( 160000, std::make_pair(uint256("0x000000000001cb1133043d38d077c0e93f66c8b2566779f10f182137d1e34a68"), 1425150237) )
+ ( 200000, std::make_pair(uint256("0x0000000000029f8bbf66e6ea6f3e5db55009404aae0fe395a53dd33142b2bff2"), 1441127233) )
+ ( 221047, std::make_pair(uint256("0xa28aef712e7aa0c285bfe29351ca21ed416689139e3063ef770fc826a8b9e9da"), 1449431646) )
+ ( 243100, std::make_pair(uint256("0x000000000006522d1ebc0734cb0e6b83f5d4da0c3cbc72bd91b82016f611c4f0"), 1458215793) )
+ ( 532000, std::make_pair(uint256("0x0000000000018b7eba5e189c41605780c8a855f74144fa837fa05fa4c67b6ba9"), 1569359486) )
+ ( 561108, std::make_pair(uint256("0x2f3cf523ae1022300b4f40073e506d15ef0d6e208f123aed5b93016f81a10e1e"), 1580943827) )
+ ;
+
+ static ListBannedBlocks listBanned =
+ boost::assign::list_of
+ // Invalid block #221047 with future timestamp of 2016/02/23 09:24:17 UTC
+ ( uint256("0x46223e5432ceffe650d5729b4bb8479dcdf0ca1e534fa8e69382dc87b42ea94b") )
+ ;
+
+ // TestNet has no checkpoints
+ static MapCheckpoints mapCheckpointsTestnet =
+ boost::assign::map_list_of
+ ( 0, std::make_pair(hashGenesisBlockTestNet, 1360105017) )
+ ;
bool CheckHardened(int nHeight, const uint256& hash)
{
- if (fTestNet) return true; // Testnet has no checkpoints
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight);
- if (i == mapCheckpoints.end()) return true;
- return hash == i->second;
+ MapCheckpoints::const_iterator i = checkpoints.find(nHeight);
+ if (i == checkpoints.end()) return true;
+ return hash == i->second.first;
+ }
+
+ bool CheckBanned(const uint256 &nHash)
+ {
+ if (fTestNet) // Testnet has no banned blocks
+ return true;
+ ListBannedBlocks::const_iterator it = std::find(listBanned.begin(), listBanned.end(), nHash);
+ return it == listBanned.end();
}
int GetTotalBlocksEstimate()
{
- if (fTestNet) return 0;
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- return mapCheckpoints.rbegin()->first;
+ return checkpoints.rbegin()->first;
+ }
+
+ unsigned int GetLastCheckpointTime()
+ {
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
+
+ return checkpoints.rbegin()->second.second;
}
CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
{
- if (fTestNet) {
- std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hashGenesisBlock);
- if (t != mapBlockIndex.end())
- return t->second;
- return NULL;
- }
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- int64 nResult;
- BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
+ BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints)
{
- const uint256& hash = i.second;
+ const uint256& hash = i.second.first;
std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
if (t != mapBlockIndex.end())
return t->second;
// ppcoin: get last synchronized checkpoint
CBlockIndex* GetLastSyncCheckpoint()
{
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
- {
- if (!mapBlockIndex.count(hashSyncCheckpoint))
- error("GetSyncCheckpoint: block index missing for current sync-checkpoint %s", hashSyncCheckpoint.ToString().c_str());
- else
- return mapBlockIndex[hashSyncCheckpoint];
- }
+ LOCK(cs_hashSyncCheckpoint);
+ if (!mapBlockIndex.count(hashSyncCheckpoint))
+ error("GetSyncCheckpoint: block index missing for current sync-checkpoint %s", hashSyncCheckpoint.ToString().c_str());
+ else
+ return mapBlockIndex[hashSyncCheckpoint];
return NULL;
}
// that current checkpoint should be a descendant block
CBlockIndex* pindex = pindexSyncCheckpoint;
while (pindex->nHeight > pindexCheckpointRecv->nHeight)
- if (!(pindex = pindex->pprev))
- return error("ValidateSyncCheckpoint: pprev1 null - block index structure failure");
+ if ((pindex = pindex->pprev) == NULL)
+ return error("ValidateSyncCheckpoint: pprev null - block index structure failure");
if (pindex->GetBlockHash() != hashCheckpoint)
{
hashInvalidCheckpoint = hashCheckpoint;
// to verify.
CBlockIndex* pindex = pindexCheckpointRecv;
while (pindex->nHeight > pindexSyncCheckpoint->nHeight)
- if (!(pindex = pindex->pprev))
+ if ((pindex = pindex->pprev) == NULL)
return error("ValidateSyncCheckpoint: pprev2 null - block index structure failure");
if (pindex->GetBlockHash() != hashSyncCheckpoint)
{
}
if (!txdb.TxnCommit())
return error("WriteSyncCheckpoint(): failed to commit to db sync checkpoint %s", hashCheckpoint.ToString().c_str());
+
+#ifndef USE_LEVELDB
txdb.Close();
+#endif
Checkpoints::hashSyncCheckpoint = hashCheckpoint;
return true;
bool AcceptPendingSyncCheckpoint()
{
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
+ LOCK(cs_hashSyncCheckpoint);
+ if (hashPendingCheckpoint != 0 && mapBlockIndex.count(hashPendingCheckpoint))
{
- if (hashPendingCheckpoint != 0 && mapBlockIndex.count(hashPendingCheckpoint))
+ if (!ValidateSyncCheckpoint(hashPendingCheckpoint))
{
- if (!ValidateSyncCheckpoint(hashPendingCheckpoint))
- {
- hashPendingCheckpoint = 0;
- checkpointMessagePending.SetNull();
- return false;
- }
+ hashPendingCheckpoint = 0;
+ checkpointMessagePending.SetNull();
+ return false;
+ }
- CTxDB txdb;
- CBlockIndex* pindexCheckpoint = mapBlockIndex[hashPendingCheckpoint];
- if (!pindexCheckpoint->IsInMainChain())
+ CTxDB txdb;
+ CBlockIndex* pindexCheckpoint = mapBlockIndex[hashPendingCheckpoint];
+ if (!pindexCheckpoint->IsInMainChain())
+ {
+ CBlock block;
+ if (!block.ReadFromDisk(pindexCheckpoint))
+ return error("AcceptPendingSyncCheckpoint: ReadFromDisk failed for sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
+ if (!block.SetBestChain(txdb, pindexCheckpoint))
{
- txdb.TxnBegin();
- if (!Reorganize(txdb, pindexCheckpoint))
- {
- txdb.TxnAbort();
- hashInvalidCheckpoint = hashPendingCheckpoint;
- return error("ProcessSyncCheckpoint: Reorganize failed for sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
- }
+ hashInvalidCheckpoint = hashPendingCheckpoint;
+ return error("AcceptPendingSyncCheckpoint: SetBestChain failed for sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
}
- txdb.Close();
+ }
- if (!WriteSyncCheckpoint(hashPendingCheckpoint))
- return error("AcceptPendingSyncCheckpoint(): failed to write sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
- hashPendingCheckpoint = 0;
- checkpointMessage = checkpointMessagePending;
- checkpointMessagePending.SetNull();
- printf("AcceptPendingSyncCheckpoint : sync-checkpoint at %s\n", hashSyncCheckpoint.ToString().c_str());
- // relay the checkpoint
- if (!checkpointMessage.IsNull())
- BOOST_FOREACH(CNode* pnode, vNodes)
- checkpointMessage.RelayTo(pnode);
- return true;
+#ifndef USE_LEVELDB
+ txdb.Close();
+#endif
+ if (!WriteSyncCheckpoint(hashPendingCheckpoint))
+ return error("AcceptPendingSyncCheckpoint(): failed to write sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
+ hashPendingCheckpoint = 0;
+ checkpointMessage = checkpointMessagePending;
+ checkpointMessagePending.SetNull();
+ printf("AcceptPendingSyncCheckpoint : sync-checkpoint at %s\n", hashSyncCheckpoint.ToString().c_str());
+ // relay the checkpoint
+ if (!checkpointMessage.IsNull())
+ {
+ for (std::vector<CNode*>::iterator it = vNodes.begin(); it != vNodes.end(); ++it)
+ checkpointMessage.RelayTo(*it);
}
+ return true;
}
-
return false;
}
+ // Automatically select a suitable sync-checkpoint
uint256 AutoSelectSyncCheckpoint()
{
- // select a block some time ago
- CBlockIndex *pindex = mapBlockIndex[hashSyncCheckpoint];
- while (pindex->pnext && pindex->pnext->GetBlockTime() + CHECKPOINT_MIN_SPAN <= GetAdjustedTime())
- pindex = pindex->pnext;
+ const CBlockIndex *pindex = pindexBest;
+ // Search backward for a block within max span and maturity window
+ while (pindex->pprev && (pindex->GetBlockTime() + CHECKPOINT_MAX_SPAN > pindexBest->GetBlockTime() || pindex->nHeight + 8 > pindexBest->nHeight))
+ pindex = pindex->pprev;
return pindex->GetBlockHash();
}
if (fTestNet) return true; // Testnet has no checkpoints
int nHeight = pindexPrev->nHeight + 1;
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
- {
- // sync-checkpoint should always be accepted block
- assert(mapBlockIndex.count(hashSyncCheckpoint));
- const CBlockIndex* pindexSync = mapBlockIndex[hashSyncCheckpoint];
+ LOCK(cs_hashSyncCheckpoint);
+ // sync-checkpoint should always be accepted block
+ assert(mapBlockIndex.count(hashSyncCheckpoint));
+ const CBlockIndex* pindexSync = mapBlockIndex[hashSyncCheckpoint];
- if (nHeight > pindexSync->nHeight)
- {
- // trace back to same height as sync-checkpoint
- const CBlockIndex* pindex = pindexPrev;
- while (pindex->nHeight > pindexSync->nHeight)
- if (!(pindex = pindex->pprev))
- return error("CheckSync: pprev null - block index structure failure");
- if (pindex->nHeight < pindexSync->nHeight || pindex->GetBlockHash() != hashSyncCheckpoint)
- return false; // only descendant of sync-checkpoint can pass check
- }
- if (nHeight == pindexSync->nHeight && hashBlock != hashSyncCheckpoint)
- return false; // same height with sync-checkpoint
- if (nHeight < pindexSync->nHeight && !mapBlockIndex.count(hashBlock))
- return false; // lower height than sync-checkpoint
+ if (nHeight > pindexSync->nHeight)
+ {
+ // trace back to same height as sync-checkpoint
+ const CBlockIndex* pindex = pindexPrev;
+ while (pindex->nHeight > pindexSync->nHeight)
+ if ((pindex = pindex->pprev) == NULL)
+ return error("CheckSync: pprev null - block index structure failure");
+ if (pindex->nHeight < pindexSync->nHeight || pindex->GetBlockHash() != hashSyncCheckpoint)
+ return false; // only descendant of sync-checkpoint can pass check
}
+ if (nHeight == pindexSync->nHeight && hashBlock != hashSyncCheckpoint)
+ return false; // same height with sync-checkpoint
+ if (nHeight < pindexSync->nHeight && !mapBlockIndex.count(hashBlock))
+ return false; // lower height than sync-checkpoint
return true;
}
bool WantedByPendingSyncCheckpoint(uint256 hashBlock)
{
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
- {
- if (hashPendingCheckpoint == 0)
- return false;
- if (hashBlock == hashPendingCheckpoint)
- return true;
- if (mapOrphanBlocks.count(hashPendingCheckpoint)
- && hashBlock == WantedByOrphan(mapOrphanBlocks[hashPendingCheckpoint]))
- return true;
- }
+ LOCK(cs_hashSyncCheckpoint);
+ if (hashPendingCheckpoint == 0)
+ return false;
+ if (hashBlock == hashPendingCheckpoint)
+ return true;
+ if (mapOrphanBlocks.count(hashPendingCheckpoint)
+ && hashBlock == WantedByOrphan(mapOrphanBlocks[hashPendingCheckpoint]))
+ return true;
return false;
}
// ppcoin: reset synchronized checkpoint to last hardened checkpoint
bool ResetSyncCheckpoint()
{
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
+ LOCK(cs_hashSyncCheckpoint);
+ const uint256& hash = mapCheckpoints.rbegin()->second.first;
+ if (mapBlockIndex.count(hash) && !mapBlockIndex[hash]->IsInMainChain())
{
- const uint256& hash = mapCheckpoints.rbegin()->second;
- if (mapBlockIndex.count(hash) && !mapBlockIndex[hash]->IsInMainChain())
+ // checkpoint block accepted but not yet in main chain
+ printf("ResetSyncCheckpoint: SetBestChain to hardened checkpoint %s\n", hash.ToString().c_str());
+ CTxDB txdb;
+ CBlock block;
+ if (!block.ReadFromDisk(mapBlockIndex[hash]))
+ return error("ResetSyncCheckpoint: ReadFromDisk failed for hardened checkpoint %s", hash.ToString().c_str());
+ if (!block.SetBestChain(txdb, mapBlockIndex[hash]))
{
- // checkpoint block accepted but not yet in main chain
- printf("ResetSyncCheckpoint: Reorganize to hardened checkpoint %s\n", hash.ToString().c_str());
- CTxDB txdb;
- txdb.TxnBegin();
- if (!Reorganize(txdb, mapBlockIndex[hash]))
- {
- txdb.TxnAbort();
- return error("ResetSyncCheckpoint: Reorganize failed for hardened checkpoint %s", hash.ToString().c_str());
- }
- txdb.Close();
- }
- else if(!mapBlockIndex.count(hash))
- {
- // checkpoint block not yet accepted
- hashPendingCheckpoint = hash;
- checkpointMessagePending.SetNull();
- printf("ResetSyncCheckpoint: pending for sync-checkpoint %s\n", hashPendingCheckpoint.ToString().c_str());
+ return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
}
- BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
+#ifndef USE_LEVELDB
+ txdb.Close();
+#endif
+
+ }
+ else if(!mapBlockIndex.count(hash))
+ {
+ // checkpoint block not yet accepted
+ hashPendingCheckpoint = hash;
+ checkpointMessagePending.SetNull();
+ printf("ResetSyncCheckpoint: pending for sync-checkpoint %s\n", hashPendingCheckpoint.ToString().c_str());
+ }
+
+ BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
+ {
+ const uint256& hash = i.second.first;
+ if (mapBlockIndex.count(hash) && mapBlockIndex[hash]->IsInMainChain())
{
- const uint256& hash = i.second;
- if (mapBlockIndex.count(hash) && mapBlockIndex[hash]->IsInMainChain())
- {
- if (!WriteSyncCheckpoint(hash))
- return error("ResetSyncCheckpoint: failed to write sync checkpoint %s", hash.ToString().c_str());
- printf("ResetSyncCheckpoint: sync-checkpoint reset to %s\n", hashSyncCheckpoint.ToString().c_str());
- return true;
- }
+ if (!WriteSyncCheckpoint(hash))
+ return error("ResetSyncCheckpoint: failed to write sync checkpoint %s", hash.ToString().c_str());
+ printf("ResetSyncCheckpoint: sync-checkpoint reset to %s\n", hashSyncCheckpoint.ToString().c_str());
+ return true;
}
+ }
+
+ return false;
+ }
+
+ void AskForPendingSyncCheckpoint(CNode* pfrom)
+ {
+ LOCK(cs_hashSyncCheckpoint);
+ if (pfrom && hashPendingCheckpoint != 0 && (!mapBlockIndex.count(hashPendingCheckpoint)) && (!mapOrphanBlocks.count(hashPendingCheckpoint)))
+ pfrom->AskFor(CInv(MSG_BLOCK, hashPendingCheckpoint));
+ }
+ bool SetCheckpointPrivKey(std::string strPrivKey)
+ {
+ // Test signing a sync-checkpoint with genesis block
+ CSyncCheckpoint checkpoint;
+ checkpoint.hashCheckpoint = !fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet;
+ CDataStream sMsg(SER_NETWORK, PROTOCOL_VERSION);
+ sMsg << (CUnsignedSyncCheckpoint)checkpoint;
+ checkpoint.vchMsg = std::vector<unsigned char>(sMsg.begin(), sMsg.end());
+
+ std::vector<unsigned char> vchPrivKey = ParseHex(strPrivKey);
+ CKey key;
+ key.SetPrivKey(CPrivKey(vchPrivKey.begin(), vchPrivKey.end())); // if key is not correct openssl may crash
+ if (!key.Sign(Hash(checkpoint.vchMsg.begin(), checkpoint.vchMsg.end()), checkpoint.vchSig))
return false;
+
+ // Test signing successful, proceed
+ CSyncCheckpoint::strMasterPrivKey = strPrivKey;
+ return true;
+ }
+
+ bool SendSyncCheckpoint(uint256 hashCheckpoint)
+ {
+ CSyncCheckpoint checkpoint;
+ checkpoint.hashCheckpoint = hashCheckpoint;
+ CDataStream sMsg(SER_NETWORK, PROTOCOL_VERSION);
+ sMsg << (CUnsignedSyncCheckpoint)checkpoint;
+ checkpoint.vchMsg = std::vector<unsigned char>(sMsg.begin(), sMsg.end());
+
+ if (CSyncCheckpoint::strMasterPrivKey.empty())
+ return error("SendSyncCheckpoint: Checkpoint master key unavailable.");
+ std::vector<unsigned char> vchPrivKey = ParseHex(CSyncCheckpoint::strMasterPrivKey);
+ CKey key;
+ key.SetPrivKey(CPrivKey(vchPrivKey.begin(), vchPrivKey.end())); // if key is not correct openssl may crash
+ if (!key.Sign(Hash(checkpoint.vchMsg.begin(), checkpoint.vchMsg.end()), checkpoint.vchSig))
+ return error("SendSyncCheckpoint: Unable to sign checkpoint, check private key?");
+
+ if(!checkpoint.ProcessSyncCheckpoint(NULL))
+ {
+ printf("WARNING: SendSyncCheckpoint: Failed to process checkpoint.\n");
+ return false;
+ }
+
+ // Relay checkpoint
+ {
+ LOCK(cs_vNodes);
+ for (std::vector<CNode*>::iterator it = vNodes.begin(); it != vNodes.end(); ++it)
+ checkpoint.RelayTo(*it);
}
+ return true;
}
- void AskForPendingSyncCheckpoint(CNode* pfrom)
+ // Is the sync-checkpoint outside maturity window?
+ bool IsMatureSyncCheckpoint()
{
- CRITICAL_BLOCK(cs_hashSyncCheckpoint)
- if (pfrom && hashPendingCheckpoint != 0 && (!mapBlockIndex.count(hashPendingCheckpoint)) && (!mapOrphanBlocks.count(hashPendingCheckpoint)))
- pfrom->AskFor(CInv(MSG_BLOCK, hashPendingCheckpoint));
+ LOCK(cs_hashSyncCheckpoint);
+ // sync-checkpoint should always be accepted block
+ assert(mapBlockIndex.count(hashSyncCheckpoint));
+ const CBlockIndex* pindexSync = mapBlockIndex[hashSyncCheckpoint];
+ return (nBestHeight >= pindexSync->nHeight + nCoinbaseMaturity ||
+ pindexSync->GetBlockTime() + nStakeMinAge < GetAdjustedTime());
}
}
// ppcoin: sync-checkpoint master key
-const std::string CSyncCheckpoint::strMasterPubKey = "0424f20205e5da98ba632bbd278a11a6499585f62bfb2c782377ef59f0251daab8085fc31471bcb8180bc75ed0fa41bb50c7c084511d54015a3a5241d645c7268a";
+const std::string CSyncCheckpoint::strMasterPubKey = "04a51b735f816de4ec3f891d5b38bbc91e1f7245c7c08d17990760b86b4d8fc3910a850ffecf73bfa8886f01739a0c4c4322201282d07b6e48ce931cc92af94850";
+
+std::string CSyncCheckpoint::strMasterPrivKey = "";
// ppcoin: verify signature of sync-checkpoint message
bool CSyncCheckpoint::CheckSignature()
{
- CKey key;
- if (!key.SetPubKey(ParseHex(CSyncCheckpoint::strMasterPubKey)))
- return error("CSyncCheckpoint::CheckSignature() : SetPubKey failed");
+ CPubKey key(ParseHex(CSyncCheckpoint::strMasterPubKey));
if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
return error("CSyncCheckpoint::CheckSignature() : verify signature failed");
// Now unserialize the data
- CDataStream sMsg(vchMsg);
+ CDataStream sMsg(vchMsg, SER_NETWORK, PROTOCOL_VERSION);
sMsg >> *(CUnsignedSyncCheckpoint*)this;
return true;
}
-// ppcoin: process synchronized checkpoint
+// process synchronized checkpoint
bool CSyncCheckpoint::ProcessSyncCheckpoint(CNode* pfrom)
{
if (!CheckSignature())
return false;
- CRITICAL_BLOCK(Checkpoints::cs_hashSyncCheckpoint)
+ LOCK(Checkpoints::cs_hashSyncCheckpoint);
+ if (!mapBlockIndex.count(hashCheckpoint))
{
- if (!mapBlockIndex.count(hashCheckpoint))
+ // We haven't received the checkpoint chain, keep the checkpoint as pending
+ Checkpoints::hashPendingCheckpoint = hashCheckpoint;
+ Checkpoints::checkpointMessagePending = *this;
+ printf("ProcessSyncCheckpoint: pending for sync-checkpoint %s\n", hashCheckpoint.ToString().c_str());
+ // Ask this guy to fill in what we're missing
+ if (pfrom)
{
- // We haven't received the checkpoint chain, keep the checkpoint as pending
- Checkpoints::hashPendingCheckpoint = hashCheckpoint;
- Checkpoints::checkpointMessagePending = *this;
- printf("ProcessSyncCheckpoint: pending for sync-checkpoint %s\n", hashCheckpoint.ToString().c_str());
- // Ask this guy to fill in what we're missing
- if (pfrom)
- {
- pfrom->PushGetBlocks(pindexBest, hashCheckpoint);
- // ask directly as well in case rejected earlier by duplicate
- // proof-of-stake because getblocks may not get it this time
- pfrom->AskFor(CInv(MSG_BLOCK, mapOrphanBlocks.count(hashCheckpoint)? WantedByOrphan(mapOrphanBlocks[hashCheckpoint]) : hashCheckpoint));
- }
- return false;
+ pfrom->PushGetBlocks(pindexBest, hashCheckpoint);
+ // ask directly as well in case rejected earlier by duplicate
+ // proof-of-stake because getblocks may not get it this time
+ pfrom->AskFor(CInv(MSG_BLOCK, mapOrphanBlocks.count(hashCheckpoint)? WantedByOrphan(mapOrphanBlocks[hashCheckpoint]) : hashCheckpoint));
}
+ return false;
+ }
- if (!Checkpoints::ValidateSyncCheckpoint(hashCheckpoint))
- return false;
+ if (!Checkpoints::ValidateSyncCheckpoint(hashCheckpoint))
+ return false;
- CTxDB txdb;
- CBlockIndex* pindexCheckpoint = mapBlockIndex[hashCheckpoint];
- if (!pindexCheckpoint->IsInMainChain())
+ CTxDB txdb;
+ CBlockIndex* pindexCheckpoint = mapBlockIndex[hashCheckpoint];
+ if (!pindexCheckpoint->IsInMainChain())
+ {
+ // checkpoint chain received but not yet main chain
+ CBlock block;
+ if (!block.ReadFromDisk(pindexCheckpoint))
+ return error("ProcessSyncCheckpoint: ReadFromDisk failed for sync checkpoint %s", hashCheckpoint.ToString().c_str());
+ if (!block.SetBestChain(txdb, pindexCheckpoint))
{
- // checkpoint chain received but not yet main chain
- txdb.TxnBegin();
- if (!Reorganize(txdb, pindexCheckpoint))
- {
- txdb.TxnAbort();
- Checkpoints::hashInvalidCheckpoint = hashCheckpoint;
- return error("ProcessSyncCheckpoint: Reorganize failed for sync checkpoint %s", hashCheckpoint.ToString().c_str());
- }
+ Checkpoints::hashInvalidCheckpoint = hashCheckpoint;
+ return error("ProcessSyncCheckpoint: SetBestChain failed for sync checkpoint %s", hashCheckpoint.ToString().c_str());
}
- txdb.Close();
-
- if (!Checkpoints::WriteSyncCheckpoint(hashCheckpoint))
- return error("ProcessSyncCheckpoint(): failed to write sync checkpoint %s", hashCheckpoint.ToString().c_str());
- Checkpoints::checkpointMessage = *this;
- Checkpoints::hashPendingCheckpoint = 0;
- Checkpoints::checkpointMessagePending.SetNull();
- printf("ProcessSyncCheckpoint: sync-checkpoint at %s\n", hashCheckpoint.ToString().c_str());
}
+
+#ifndef USE_LEVELDB
+ txdb.Close();
+#endif
+
+ if (!Checkpoints::WriteSyncCheckpoint(hashCheckpoint))
+ return error("ProcessSyncCheckpoint(): failed to write sync checkpoint %s", hashCheckpoint.ToString().c_str());
+ Checkpoints::checkpointMessage = *this;
+ Checkpoints::hashPendingCheckpoint = 0;
+ Checkpoints::checkpointMessagePending.SetNull();
+ printf("ProcessSyncCheckpoint: sync-checkpoint at %s\n", hashCheckpoint.ToString().c_str());
return true;
}