diff options
Diffstat (limited to 'src/validation.h')
| -rw-r--r-- | src/validation.h | 79 |
1 files changed, 13 insertions, 66 deletions
diff --git a/src/validation.h b/src/validation.h index dbf7aa28db..91b1ba6497 100644 --- a/src/validation.h +++ b/src/validation.h @@ -60,57 +60,15 @@ static const unsigned int DEFAULT_ANCESTOR_SIZE_LIMIT = 101; static const unsigned int DEFAULT_DESCENDANT_LIMIT = 25; /** Default for -limitdescendantsize, maximum kilobytes of in-mempool descendants */ static const unsigned int DEFAULT_DESCENDANT_SIZE_LIMIT = 101; -/** - * 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; /** Default for -mempoolexpiry, expiration time for mempool transactions in hours */ static const unsigned int DEFAULT_MEMPOOL_EXPIRY = 336; -/** Maximum kilobytes for transactions to store for processing during reorg */ -static const unsigned int MAX_DISCONNECTED_TX_POOL_SIZE = 20000; /** The maximum size of a blk?????.dat file (since 0.8) */ static const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000; // 128 MiB -/** 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 - /** Maximum number of dedicated script-checking threads allowed */ static const int MAX_SCRIPTCHECK_THREADS = 15; /** -par default (number of script-checking threads, 0 = auto) */ static const int DEFAULT_SCRIPTCHECK_THREADS = 0; -/** Number of blocks that can be requested at any given time from a single peer. */ -static const int MAX_BLOCKS_IN_TRANSIT_PER_PEER = 16; -/** Timeout in seconds during which a peer must stall block download progress before being disconnected. */ -static const unsigned int BLOCK_STALLING_TIMEOUT = 2; -/** Number of headers sent in one getheaders result. We rely on the assumption that if a peer sends - * less than this number, we reached its tip. Changing this value is a protocol upgrade. */ -static const unsigned int MAX_HEADERS_RESULTS = 2000; -/** Maximum depth of blocks we're willing to serve as compact blocks to peers - * when requested. For older blocks, a regular BLOCK response will be sent. */ -static const int MAX_CMPCTBLOCK_DEPTH = 5; -/** Maximum depth of blocks we're willing to respond to GETBLOCKTXN requests for. */ -static const int MAX_BLOCKTXN_DEPTH = 10; -/** Size of the "block download window": how far ahead of our current height do we fetch? - * Larger windows tolerate larger download speed differences between peer, but increase the potential - * degree of disordering of blocks on disk (which make reindexing and pruning harder). We'll probably - * want to make this a per-peer adaptive value at some point. */ -static const unsigned int BLOCK_DOWNLOAD_WINDOW = 1024; -/** 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; -/** Block download timeout base, expressed in millionths of the block interval (i.e. 10 min) */ -static const int64_t BLOCK_DOWNLOAD_TIMEOUT_BASE = 1000000; -/** Additional block download timeout per parallel downloading peer (i.e. 5 min) */ -static const int64_t BLOCK_DOWNLOAD_TIMEOUT_PER_PEER = 500000; - static const int64_t DEFAULT_MAX_TIP_AGE = 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; - static const bool DEFAULT_CHECKPOINTS_ENABLED = true; static const bool DEFAULT_TXINDEX = false; static const char* const DEFAULT_BLOCKFILTERINDEX = "0"; @@ -119,15 +77,21 @@ static const unsigned int DEFAULT_BANSCORE_THRESHOLD = 100; static const bool DEFAULT_PERSIST_MEMPOOL = true; /** Default for using fee filter */ static const bool DEFAULT_FEEFILTER = true; - -/** Maximum number of headers to announce when relaying blocks with headers message.*/ -static const unsigned int MAX_BLOCKS_TO_ANNOUNCE = 8; - -/** Maximum number of unconnecting headers announcements before DoS score */ -static const int MAX_UNCONNECTING_HEADERS = 10; - /** Default for -stopatheight */ static const int DEFAULT_STOPATHEIGHT = 0; +/** Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ::ChainActive().Tip() will not be pruned. */ +static const unsigned int MIN_BLOCKS_TO_KEEP = 288; +static const signed int DEFAULT_CHECKBLOCKS = 6; +static const unsigned int DEFAULT_CHECKLEVEL = 3; +// Require that user allocate at least 550 MiB for block & undo files (blk???.dat and rev???.dat) +// At 1MB per block, 288 blocks = 288MB. +// Add 15% for Undo data = 331MB +// Add 20% for Orphan block rate = 397MB +// We want the low water mark after pruning to be at least 397 MB and since we prune in +// full block file chunks, we need the high water mark which triggers the prune to be +// one 128MB block file + added 15% undo data = 147MB greater for a total of 545MB +// Setting the target to >= 550 MiB will make it likely we can respect the target. +static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024; struct BlockHasher { @@ -175,23 +139,6 @@ extern bool fHavePruned; extern bool fPruneMode; /** Number of MiB of block files that we're trying to stay below. */ extern uint64_t nPruneTarget; -/** Block files containing a block-height within MIN_BLOCKS_TO_KEEP of ::ChainActive().Tip() will not be pruned. */ -static const unsigned int MIN_BLOCKS_TO_KEEP = 288; -/** Minimum blocks required to signal NODE_NETWORK_LIMITED */ -static const unsigned int NODE_NETWORK_LIMITED_MIN_BLOCKS = 288; - -static const signed int DEFAULT_CHECKBLOCKS = 6; -static const unsigned int DEFAULT_CHECKLEVEL = 3; - -// Require that user allocate at least 550 MiB for block & undo files (blk???.dat and rev???.dat) -// At 1MB per block, 288 blocks = 288MB. -// Add 15% for Undo data = 331MB -// Add 20% for Orphan block rate = 397MB -// We want the low water mark after pruning to be at least 397 MB and since we prune in -// full block file chunks, we need the high water mark which triggers the prune to be -// one 128MB block file + added 15% undo data = 147MB greater for a total of 545MB -// Setting the target to >= 550 MiB will make it likely we can respect the target. -static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024; /** * Process an incoming block. This only returns after the best known valid |