diff options
Diffstat (limited to 'src/validation.cpp')
| -rw-r--r-- | src/validation.cpp | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index 60d028336f..25975e3e31 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -59,6 +59,25 @@ #define MICRO 0.000001 #define MILLI 0.001 +/** + * An extra transaction can be added to a package, as long as it only has one + * ancestor and is no larger than this. Not really any reason to make this + * configurable as it doesn't materially change DoS parameters. + */ +static const unsigned int EXTRA_DESCENDANT_TX_SIZE_LIMIT = 10000; +/** Maximum kilobytes for transactions to store for processing during reorg */ +static const unsigned int MAX_DISCONNECTED_TX_POOL_SIZE = 20000; +/** The pre-allocation chunk size for blk?????.dat files (since 0.8) */ +static const unsigned int BLOCKFILE_CHUNK_SIZE = 0x1000000; // 16 MiB +/** The pre-allocation chunk size for rev?????.dat files (since 0.8) */ +static const unsigned int UNDOFILE_CHUNK_SIZE = 0x100000; // 1 MiB +/** Time to wait (in seconds) between writing blocks/block index to disk. */ +static const unsigned int DATABASE_WRITE_INTERVAL = 60 * 60; +/** Time to wait (in seconds) between flushing chainstate to disk. */ +static const unsigned int DATABASE_FLUSH_INTERVAL = 24 * 60 * 60; +/** Maximum age of our tip in seconds for us to be considered current for fee estimation */ +static const int64_t MAX_FEE_ESTIMATION_TIP_AGE = 3 * 60 * 60; + bool CBlockIndexWorkComparator::operator()(const CBlockIndex *pa, const CBlockIndex *pb) const { // First sort by most total work, ... if (pa->nChainWork > pb->nChainWork) return false; @@ -1676,10 +1695,11 @@ int ApplyTxInUndo(Coin&& undo, CCoinsViewCache& view, const COutPoint& out) return DISCONNECT_FAILED; // adding output for transaction without known metadata } } - // The potential_overwrite parameter to AddCoin is only allowed to be false if we know for - // sure that the coin did not already exist in the cache. As we have queried for that above - // using HaveCoin, we don't need to guess. When fClean is false, a coin already existed and - // it is an overwrite. + // If the coin already exists as an unspent coin in the cache, then the + // possible_overwrite parameter to AddCoin must be set to true. We have + // already checked whether an unspent coin exists above using HaveCoin, so + // we don't need to guess. When fClean is false, an unspent coin already + // existed and it is an overwrite. view.AddCoin(out, std::move(undo), !fClean); return fClean ? DISCONNECT_OK : DISCONNECT_UNCLEAN; |