// 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());
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]))
{
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;
}
// reset synchronized checkpoint to last hardened checkpoint
bool ResetSyncCheckpoint()
{
LOCK(cs_hashSyncCheckpoint);
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());
CValidationState state;
if (!SetBestChain(state, mapBlockIndex[hash]))
{
return error("ResetSyncCheckpoint: SetBestChain failed for hardened checkpoint %s", hash.ToString().c_str());
}
} else {
/* Reset to the last available checkpoint block in the main chain */
checkpointMessagePending.SetNull();
hash = Checkpoints::GetLastAvailableCheckpoint();
}
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;
}
