// ppcoin: reset synchronized checkpoint to last hardened checkpoint
bool ResetSyncCheckpoint()
{
printf("ResetSyncCheckpoint\n");
LOCK(cs_hashSyncCheckpoint);
const uint256& hash = Checkpoints::GetLatestHardenedCheckpoint();
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());
CBlock block;
if (!block.ReadFromDisk(mapBlockIndex[hash]))
return error("ResetSyncCheckpoint: ReadFromDisk failed for hardened checkpoint %s", hash.ToString().c_str());
CValidationState state;
if (!SetBestChain(state, mapBlockIndex[hash]))
{
return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
}
}
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());
}
if (!WriteSyncCheckpoint((mapBlockIndex.count(hash) && mapBlockIndex[hash]->IsInMainChain())? hash : hashGenesisBlock))
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;
}
// ppcoin: reset synchronized checkpoint to last hardened checkpoint
bool ResetSyncCheckpoint()
{
LOCK(cs_hashSyncCheckpoint);
const MapCheckpoints& checkpoints = *Checkpoints().mapCheckpoints;
const uint256& hash = checkpoints.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());
CValidationState state;
if (!SetBestChain(state, mapBlockIndex[hash]))
{
return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
}
}
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, checkpoints)
{
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;
}
}
// last resort. set sync checkpoint to genesis before downloading any blockchain
if (WriteSyncCheckpoint(fTestNet ? hashGenesisBlockTestNet : hashGenesisBlock))
{
printf("ResetSyncCheckpoint: sync-checkpoint reset to hashGenesisBlock\n");
return true;
}
else
{
printf("ResetSyncCheckpoint: failed to reset sync-checkpoint to hashGenesisBlock\n");
return false;
}
}
bool AcceptPendingSyncCheckpoint()
{
LOCK(cs_hashSyncCheckpoint);
if (hashPendingCheckpoint != 0 && mapBlockIndex.count(hashPendingCheckpoint))
{
if (!ValidateSyncCheckpoint(hashPendingCheckpoint))
{
hashPendingCheckpoint = 0;
checkpointMessagePending.SetNull();
printf("AcceptPendingSyncCheckpoint: FAIL1\n");
return false;
}
CBlockIndex* pindexCheckpoint = mapBlockIndex[hashPendingCheckpoint];
if (IsSyncCheckpointEnforced() && !pindexCheckpoint->IsInMainChain())
{
CBlock block;
if (!block.ReadFromDisk(pindexCheckpoint))
return error("AcceptPendingSyncCheckpoint: ReadFromDisk failed for sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
CValidationState state;
if (!SetBestChain(state, pindexCheckpoint))
{
hashInvalidCheckpoint = hashPendingCheckpoint;
return error("AcceptPendingSyncCheckpoint: SetBestChain failed for sync checkpoint %s", hashPendingCheckpoint.ToString().c_str());
}
}
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;
}
return false;
}
// ppcoin: reset synchronized checkpoint to last hardened checkpoint
bool ResetSyncCheckpoint()
{
LOCK(cs_hashSyncCheckpoint);
const uint256& hash = mapCheckpoints.rbegin()->second.first;
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());
CBlock block;
if (!block.ReadFromDisk(mapBlockIndex[hash]))
return error("ResetSyncCheckpoint: ReadFromDisk failed for hardened checkpoint %s", hash.ToString().c_str());
if (!SetBestChain(mapBlockIndex[hash]))
{
return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
}
}
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())
{
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;
}
