diff options
Diffstat (limited to 'src/txmempool.h')
| -rw-r--r-- | src/txmempool.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/txmempool.h b/src/txmempool.h index ea1d62d32d..d1308aeeed 100644 --- a/src/txmempool.h +++ b/src/txmempool.h @@ -18,6 +18,7 @@ #include <coins.h> #include <indirectmap.h> #include <policy/feerate.h> +#include <policy/packages.h> #include <primitives/transaction.h> #include <random.h> #include <sync.h> @@ -585,6 +586,25 @@ private: */ std::set<uint256> m_unbroadcast_txids GUARDED_BY(cs); + + /** + * Helper function to calculate all in-mempool ancestors of staged_ancestors and apply ancestor + * and descendant limits (including staged_ancestors thsemselves, entry_size and entry_count). + * param@[in] entry_size Virtual size to include in the limits. + * param@[in] entry_count How many entries to include in the limits. + * param@[in] staged_ancestors Should contain entries in the mempool. + * param@[out] setAncestors Will be populated with all mempool ancestors. + */ + bool CalculateAncestorsAndCheckLimits(size_t entry_size, + size_t entry_count, + setEntries& setAncestors, + CTxMemPoolEntry::Parents &staged_ancestors, + uint64_t limitAncestorCount, + uint64_t limitAncestorSize, + uint64_t limitDescendantCount, + uint64_t limitDescendantSize, + std::string &errString) const EXCLUSIVE_LOCKS_REQUIRED(cs); + public: indirectmap<COutPoint, const CTransaction*> mapNextTx GUARDED_BY(cs); std::map<uint256, CAmount> mapDeltas GUARDED_BY(cs); @@ -681,6 +701,28 @@ public: */ bool CalculateMemPoolAncestors(const CTxMemPoolEntry& entry, setEntries& setAncestors, uint64_t limitAncestorCount, uint64_t limitAncestorSize, uint64_t limitDescendantCount, uint64_t limitDescendantSize, std::string& errString, bool fSearchForParents = true) const EXCLUSIVE_LOCKS_REQUIRED(cs); + /** Calculate all in-mempool ancestors of a set of transactions not already in the mempool and + * check ancestor and descendant limits. Heuristics are used to estimate the ancestor and + * descendant count of all entries if the package were to be added to the mempool. The limits + * are applied to the union of all package transactions. For example, if the package has 3 + * transactions and limitAncestorCount = 25, the union of all 3 sets of ancestors (including the + * transactions themselves) must be <= 22. + * @param[in] package Transaction package being evaluated for acceptance + * to mempool. The transactions need not be direct + * ancestors/descendants of each other. + * @param[in] limitAncestorCount Max number of txns including ancestors. + * @param[in] limitAncestorSize Max virtual size including ancestors. + * @param[in] limitDescendantCount Max number of txns including descendants. + * @param[in] limitDescendantSize Max virtual size including descendants. + * @param[out] errString Populated with error reason if a limit is hit. + */ + bool CheckPackageLimits(const Package& package, + uint64_t limitAncestorCount, + uint64_t limitAncestorSize, + uint64_t limitDescendantCount, + uint64_t limitDescendantSize, + std::string &errString) const EXCLUSIVE_LOCKS_REQUIRED(cs); + /** Populate setDescendants with all in-mempool descendants of hash. * Assumes that setDescendants includes all in-mempool descendants of anything * already in it. */ |